KC80526GY650256 [INTEL]

Microprocessor, 64-Bit, 650MHz, CMOS, PBGA495, PLASTIC, BGA-495;
KC80526GY650256
型号: KC80526GY650256
厂家: INTEL    INTEL
描述:

Microprocessor, 64-Bit, 650MHz, CMOS, PBGA495, PLASTIC, BGA-495

时钟 外围集成电路
文件: 总84页 (文件大小:450K)
中文:  中文翻译
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Mobile Pentium III Processor in  
BGA2 and Micro-PGA2 Packages  
Datasheet  
Featuring Intel® SpeedStep™ Technology: 600/500 MHz, and 650/500 MHz  
Featuring Fixed Frequency: 400 MHz, 450 MHz, and 500 MHz  
Product Features  
n
Processor core/bus speeds:  
n
n
BGA2 and Micro-PGA2 packaging  
technologies  
-
-
-
Single frequency at 1.60V: 450/100 MHz  
and 500/100 MHz  
Supports thin form factor notebook  
designs  
Single frequency at 1.35V: 400/100 MHz  
and 500/100 MHz  
Featuring Intel® SpeedStepTM  
technology: 600/100 MHz and 650/100  
MHz ( Maximum Performance Mode at  
1.60V) and 500/100 MHz (Battery  
Optimized Performance Mode at 1.35V)  
Exposed die enables more efficient  
heat dissipation  
Fully compatible with previous Intel  
microprocessors  
Binary compatible with all  
applications  
n
n
Supports the Intel Architecture with Dynamic  
Execution  
Support for MMX™ technology  
Support for Streaming SIMD  
Extensions  
On-die primary 16-Kbyte instruction cache  
and 16-Kbyte write-back data cache  
n
n
Power Management Features  
n
n
n
n
On-die second level cache (256-Kbyte)  
Integrated GTL+ termination  
Quick Start and Deep Sleep modes  
provide low power dissipation  
Integrated math co-processor  
Intel Processor Serial Number  
On-die thermal diode  
Order Number: XXXXX  
Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or  
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of  
Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to  
sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or  
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life  
saving, or life sustaining applications.  
Intel may make changes to specifications and product descriptions at any time, without notice.  
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined."  
Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from  
future changes to them.  
®
®
The Intel mobile Pentium III processor may contain design defects or errors known as errata that may cause the product to  
deviate from published specifications. Current characterized errata are available on request.  
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.  
Copies of documents which have an order number and are referenced in this document, or other Intel literature, may be  
obtained by calling1-800-548-4725 or by visiting Intel’s web site at http://www.intel.com  
Copyright © Intel Corporation, 1998, 1999, 2000.  
*Other brands and names are the property of their respective owners.  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
CONTENTS  
1.0  
Introduction ..................................................................................................1  
1.1  
1.2  
1.3  
Overview............................................................................................4  
Terminology .......................................................................................4  
References.........................................................................................5  
2.0  
Mobile Pentium III Processor Features.........................................................6  
2.1  
New Features in the Mobile Pentium III Processor................................6  
2.1.1 On-die GTL+ Termination........................................................6  
2.1.2 Streaming SIMD Extensions ....................................................6  
2.1.3 Intel SpeedStep Technology....................................................6  
2.1.4 Signal Differences Between the Mobile Pentium II Processor  
and the Mobile Pentium III Processor........................................6  
2.2  
Power Management............................................................................7  
2.2.1 Clock Control Architecture.......................................................7  
2.2.2 Normal State..........................................................................7  
2.2.3 Auto Halt State.......................................................................7  
2.2.4 Stop Grant State.....................................................................8  
2.2.5 Quick Start State ....................................................................9  
2.2.6 HALT/Grant Snoop State.........................................................9  
2.2.7 Sleep State.............................................................................9  
2.2.8 Deep Sleep State.................................................................. 10  
2.2.9 Operating System Implications of Low-power States ............... 10  
2.2.10 Intel SpeedStep Technology.................................................. 10  
GTL+ Signals ................................................................................... 11  
Mobile Pentium III Processor CPUID.................................................. 11  
2.3  
2.4  
3.0  
Electrical Specifications.............................................................................. 12  
3.1  
Processor System Signals................................................................. 12  
3.1.1 Power Sequencing Requirements.......................................... 13  
3.1.2 Test Access Port (TAP) Connection....................................... 13  
3.1.3 Catastrophic Thermal Protection............................................ 14  
3.1.4 Unused Signals .................................................................... 14  
3.1.5 Signal State in Low-power States........................................... 14  
3.1.5.1  
3.1.5.2  
3.1.5.3  
System Bus Signals ............................................. 14  
CMOS and Open-drain Signals ............................. 14  
Other Signals....................................................... 15  
3.2  
Power Supply Requirements ............................................................. 15  
3.2.1 Decoupling Recommendations .............................................. 15  
3.2.2 Voltage Planes ..................................................................... 15  
System Bus Clock and Processor Clocking......................................... 16  
Intel SpeedStep Technology.............................................................. 16  
Maximum Ratings ............................................................................. 16  
DC Specifications ............................................................................. 17  
AC Specifications.............................................................................. 21  
3.3  
3.4  
3.5  
3.6  
3.7  
3.7.1 System Bus, Clock, APIC, TAP, CMOS, and Open-drain AC  
Specifications ....................................................................... 21  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
4.0  
System Signal Simulations......................................................................... 34  
4.1  
System Bus Clock (BCLK) and PICCLK AC Signal Quality  
Specifications ................................................................................... 34  
GTL+ AC Signal Quality Specifications............................................... 35  
Non-GTL+ Signal Quality Specifications ............................................. 38  
4.3.1 PWRGOOD Signal Quality Specifications............................... 39  
4.2  
4.3  
5.0  
Mechanical Specifications.......................................................................... 40  
5.1  
5.2  
5.3  
Surface-mount BGA2 Package Dimensions........................................ 40  
Socketable Micro-PGA2 Package Dimensions.................................... 43  
Signal Listings .................................................................................. 46  
6.0  
7.0  
Thermal Specifications ............................................................................... 55  
6.1 Thermal Diode.................................................................................. 56  
Processor Initialization and Configuration.................................................. 58  
7.1  
Description....................................................................................... 58  
7.1.1 Quick Start Enable................................................................ 58  
7.1.2 System Bus Frequency......................................................... 58  
7.1.3 APIC Enable......................................................................... 58  
Clock Frequencies and Ratios ........................................................... 58  
7.2  
8.0  
Processor Interface..................................................................................... 59  
8.1  
8.2  
Alphabetical Signal Reference........................................................... 59  
Signal Summaries............................................................................. 71  
Appendix A: PLL RLC Filter Specification.............................................................. 73  
A.1  
A.2  
A.3  
A.4  
Introduction...................................................................................... 73  
Filter Specification............................................................................ 73  
Recommendation for Mobile Systems............................................... 74  
Comments....................................................................................... 75  
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Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figures  
Figure 1. Signal Groups of a Mobile Pentium III Processor/440BX or 440ZX-M  
AGPset - Based System...............................................................................2  
Figure 2. Signal Groups of a Mobile Pentium III Processor/440MX Chipset - Based  
System .......................................................................................................3  
Figure 3. Clock Control States .....................................................................................8  
Figure 4. Vcc Ramp Rate Requirement ...................................................................... 13  
Figure 5. PLL RLC Filter............................................................................................ 15  
Figure 6. PICCLK/TCK Clock Timing Waveform.......................................................... 27  
Figure 7. BCLK Timing Waveform.............................................................................. 27  
Figure 8. Valid Delay Timings .................................................................................... 28  
Figure 9. Setup and Hold Timings .............................................................................. 28  
Figure 10. Cold/Warm Reset and Configuration Timings.............................................. 29  
Figure 11. Power-on Reset Timings ........................................................................... 29  
Figure 12. Test Timings (Boundary Scan)................................................................... 30  
Figure 13. Test Reset Timings ................................................................................... 30  
Figure 14. Quick Start/Deep Sleep Timing.................................................................. 31  
Figure 15. Stop Grant/Sleep/Deep Sleep Timing......................................................... 32  
Figure 16. Intel SpeedStep Technology/Deep Sleep Timing......................................... 33  
Figure 17. BCLK/PICCLK Generic Clock Waveform .................................................... 35  
Figure 18. Low to High, GTL+ Receiver Ringback Tolerance....................................... 36  
Figure 19. High to Low, GTL+ Receiver Ringback Tolerance....................................... 37  
Figure 20. Maximum Acceptable Overshoot/Undershoot Waveform ............................. 38  
Figure 21. Surface-mount BGA2 Package - Top and Side View................................... 41  
Figure 22. Surface-mount BGA2 Package - Bottom View............................................. 42  
Figure 23. Socketable Micro-PGA2 Package - Top and Side View............................... 45  
Figure 24. Socketable Micro-PGA2 Package - Bottom View......................................... 46  
Figure 25. Pin/Ball Map - Top View............................................................................ 47  
Figure 26. PWRGOOD Relationship at Power On....................................................... 66  
Figure 27. PLL Filter Specifications ............................................................................ 74  
Intel Corporation  
iii  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Tables  
Table 1. New Mobile Pentium III Processor Signals.......................................................6  
Table 2. Removed Mobile Pentium II Processor Signals................................................6  
Table 3. Clock State Characteristics........................................................................... 10  
Table 4. Mobile Pentium III Processor CPUID............................................................. 11  
Table 5. Mobile Pentium III Processor CPUID Cache and TLB Descriptors................... 11  
Table 6. System Signal Groups.................................................................................. 12  
Table 7. Recommended Resistors for Open-drain Signals........................................... 13  
Table 8. Mobile Pentium III Processor Absolute Maximum Ratings............................... 17  
Table 9. Power Specifications for Mobile Pentium III Processor with Intel SpeedStep  
Technology................................................................................................ 18  
Table 10. Power Specifications for Fixed Frequency Mobile Pentium III Processor........ 19  
Table 11. GTL+ Signal Group DC Specifications......................................................... 20  
Table 12. GTL+ Bus DC Specifications....................................................................... 20  
Table 13. Clock, APIC, TAP, CMOS, and Open-drain Signal Group DC Specifications .. 21  
Table 14. System Bus Clock AC Specifications........................................................... 22  
Table 15. Valid Mobile Pentium III Processor Frequencies ........................................... 22  
Table 16. GTL+ Signal Groups AC Specifications ....................................................... 23  
Table 17. CMOS and Open-drain Signal Groups AC Specifications.............................. 23  
Table 18. Reset Configuration AC Specifications ........................................................ 24  
Table 19. APIC Bus Signal AC Specifications ............................................................. 24  
Table 20. TAP Signal AC Specifications ..................................................................... 25  
Table 21. Quick Start/Deep Sleep AC Specifications ................................................... 26  
Table 22. Stop Grant/Sleep/Deep Sleep AC Specifications.......................................... 26  
Table 23. Intel SpeedStep Technology AC Specifications............................................ 26  
Table 24. BCLK Signal Quality Specifications ............................................................. 34  
Table 25. PICCLK Signal Quality Specifications.......................................................... 34  
Table 26. GTL+ Signal Group Ringback Specification.................................................. 36  
Table 27. GTL+ Signal Group Overshoot/Undershoot Tolerance at the Processor Core. 37  
Table 28. Non-GTL+ Signal Group Overshoot/Undershoot Tolerance at the Processor  
Core.......................................................................................................... 39  
Table 29. Surface-mount BGA2 Package Specifications.............................................. 40  
Table 30. Socketable Micro-PGA2 Package Specification............................................ 44  
Table 31. Signal Listing in Order by Pin/Ball Number................................................... 48  
Table 32. Signal Listing in Order by Signal Name........................................................ 52  
Table 33. Voltage and No-Connect Pin/Ball Locations ................................................. 54  
Table 34. Power Specifications for Mobile Pentium III Processor with Intel SpeedStep  
Technology................................................................................................ 55  
Table 35. Power Specifications for Fixed Frequency Mobile Pentium III Processor........ 56  
Table 36. Thermal Diode Interface............................................................................. 57  
Table 37. Thermal Diode Specifications...................................................................... 57  
Table 38. BSEL[1:0] Encoding................................................................................... 62  
Table 39. Voltage Identification Encoding................................................................... 70  
Table 40. Input Signals.............................................................................................. 71  
Table 41. Output Signals........................................................................................... 72  
Table 42. Input/Output Signals (Single Driver)............................................................. 72  
Table 43. Input/Output Signals (Multiple Driver) .......................................................... 72  
Table 44. PLL Filter Inductor Recommendations......................................................... 74  
Table 45. PLL Filter Capacitor Recommendations....................................................... 75  
Table 46. PLL Filter Resistor Recommendations......................................................... 75  
iv  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Revision History  
Date  
Revision Number  
Updates  
1.0  
Initial release  
Intel Corporation  
v
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
1.0  
Introduction  
®
Using Intel’s advanced 0.18 micron process technology, the Intel® mobile Pentium III processor  
is offered at speeds of 400 MHz, 450 MHz, and 500 MHz while still offering lower power for long  
battery life. Other performance advancements include the addition of new Internet Streaming  
SIMD instructions, an advanced transfer cache architecture, and a processor system bus speed of  
100 MHz. These features are offered in BGA2 and micro-PGA2 packages that are up to 20%  
smaller than those offered for the mobile Intel Pentium® II processor. All of these technologies  
make it possible to offer this outstanding performance in mobile PCs offered in a variety of shapes  
and sizes.  
Intel mobile Pentium III processor featuring Intel® SpeedSteptechnology is the next dramatic  
step towards achieving near desktop performance. This exciting new processor has two  
performance modes and allows real-time dynamic switching of the voltage and frequency between  
the modes. This occurs by switching the bus ratios, core operating voltage, and core processor  
speeds without resetting the system.  
There are two performance modes offered, Maximum Performance and Battery Optimized  
Performance. Maximum Performance mode provides near desktop performance and runs at 600  
or 650 MHz. Battery Optimized Performance mode provides the best balance between  
performance and battery life and operates at a lower frequency of 500MHz.  
The integrated L2 cache is designed to help improve performance, and it complements the system  
bus by providing critical data faster and reducing total system power consumption. The mobile  
PentiumIII processor’s 64-bit wide Gunning Transceiver Logic (GTL+) system bus provides a  
glue-less, point-to-point interface for an I/O bridge/memory controller, and is compatible with the  
440BX AGPset, 440ZX-M AGPset, and the 440MX Chipset. Figure 1 shows the various parts of a  
mobile PentiumIII processor/440BX or 440ZX-M AGPset -based system and how the mobile  
Pentium III processor connects to them. Figure 2 shows an alternative mobile Pentium III  
processor/440MX Chipset - based system.  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 1. Signal Groups of a Mobile Pentium III Processor/440BX or 440ZX-M AGPset - Based  
System  
Thermal  
Sensor  
Mobile  
APIC  
®
Pentium III  
TAP  
Bus  
Processor  
System  
Bus  
443BX or  
443ZX-M  
DRAM  
North Bridge  
PCI  
OR  
PIIX4E  
South Bridge  
System  
Controller  
IOAPIC  
(optional)  
V0000-03  
ISA/EIO  
2
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 2. Signal Groups of a Mobile Pentium III Processor/440MX Chipset - Based System  
Thermal  
Sensor  
Mobile  
TAP  
Pentium® III  
Processor  
System  
Bus  
DRAM  
440MX  
PCIset  
OR  
System  
Controller  
V0000-04  
X-bus  
PCI  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
1.1  
Overview  
Performance improved over existing mobile processors  
— Supports the Intel Architecture with Dynamic Execution  
— Supports the Intel Architecture MMX™ technology  
— Supports Streaming SIMD Extensions for enhanced video, sound, and 3D performance  
— Supports Intel SpeedStep Technology  
— Integrated Intel Floating Point Unit compatible with the IEEE 754 standard  
On-die primary (L1) instruction and data caches  
— 4-way set associative, 32-byte line size, 1 line per sector  
— 16-Kbyte instruction cache and 16-Kbyte write-back data cache  
— Cacheable range controlled by processor programmable registers  
On-die second level (L2) cache  
— 8-way set associative, 32-byte line size, 1 line per sector  
— Operates at full core speed  
— 256-Kbyte, ECC protected cache data array  
GTL+ system bus interface  
— 64-bit data bus, 100-MHz operation  
— Uniprocessor, two loads only (processor and I/O bridge/memory controller)  
— Integrated termination  
Pentium II processor clock control  
— Quick Start for low power, low exit latency clock “throttling”  
— Deep Sleep mode for lower power dissipation  
Thermal diode for measuring processor temperature  
1.2  
Terminology  
In this document a “#” symbol following a signal name indicates that the signal is active low. This  
means that when the signal is asserted (based on the name of the signal) it is in an electrical low  
state. Otherwise, signals are driven in an electrical high state when they are asserted. In state  
machine diagrams, a signal name in a condition indicates the condition of that signal being  
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Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
asserted. If the signal name is preceded by a “!” symbol, then it indicates the condition of that  
signal not being asserted. For example, the condition “!STPCLK# and HS” is equivalent to “the  
active low signal STPCLK# is unasserted (i.e., it is at 1.5V) and the HS condition is true.” The  
symbols “L” and “H” refer respectively to electrical low and electrical high signal levels. The  
symbols “0” and “1” refer respectively to logical low and logical high signal levels. For example,  
BD[3:0] = “1010” = “HLHL” refers to a hexadecimal “A,” and D[3:0]# = “1010” = “LHLH” also  
refers to a hexadecimal “A.” The symbol “X” refers to a “Don’t Care” condition, where a “0” or a  
“1” results in the same behavior.  
1.3  
References  
Pentium® II Processor at 233 MHz, 266 MHz, 300 MHz, and 333 MHz (Order Number 243335)  
Pentium® II Processor 350 MHz and 400 MHz (Order Number 243657)  
Pentium® II Processor Developer’s Manual (Order Number 243502)  
CK97 Clock Driver Specification (Contact your Intel Field Sales Representative)  
Intel® Architecture Software Developer’s Manual (Order Number 243193)  
Volume I: Basic Architecture (Order Number 243190)  
Volume II: Instruction Set Reference (Order Number 243191)  
Volume III: System Programming Guide (Order Number 243192)  
Mobile Pentium® III Processor I/O Buffer Models, IBIS Format (Available in electronic form;  
Contact your Intel Field Sales Representative)  
Mobile Pentium® III Processor GTL+ System Bus Layout Guideline (Contact your Intel Field  
Sales Representative)  
Intel® Mobile Pentium® III Processor Thermal Specification Guideline (Contact your Intel Field  
Sales Representative)  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
2.0  
Mobile Pentium III Processor Features  
2.1  
New Features in the Mobile Pentium III Processor  
2.1.1  
On-die GTL+ Termination  
The termination resistors for the GTL+ system bus are integrated onto the processor die. The  
RESET# signal does not have on-die termination and requires an external 56.2W ±1% terminating  
resistor.  
2.1.2  
2.1.3  
2.1.4  
Streaming SIMD Extensions  
The mobile Pentium III processor is the first mobile processor to implement Streaming SIMD  
(single instruction, multiple data) extensions. Streaming SIMD extensions can enhance floating  
point, video, sound, and 3-D application performance.  
Intel SpeedStep Technology  
Intel SpeedStep technology is a new mobile feature developed by Intel. The mobile Pentium III  
processors that are enabled with Intel SpeedStep technology have the ability to switch between  
two bus ratios and core speeds without having to reset the processor.  
Signal Differences Between the Mobile Pentium II Processor and the  
Mobile Pentium III Processor  
With the exception of BCLK, PICCLK, and PWRGOOD, the CMOS inputs and Open-drain  
outputs have changed from 2.5V tolerant, as on the mobile Pentium II processor to 1.5V tolerant.  
Table 1. New Mobile Pentium III Processor Signals  
Signals  
Function  
CLKREF  
CMOSREF  
EDGECTRLP  
GHI#  
System bus clock trip point control  
1.5V CMOS input buffer trip point control  
GTL+ output buffer control  
Intel SpeedStep technology operating mode selection  
Processor system bus speed selection  
Reserved, may be defined in the future  
On-die GTL+ termination control  
BSEL[1:0]  
RSVD  
RTTIMPEDP  
VCCT  
On-die GTL+ termination current supply  
Voltage Identification  
VID[4:0]  
Table 2. Removed Mobile Pentium II Processor Signals  
Signals  
Purpose  
EDGECTRLN  
BSEL  
GTL+ output buffer control  
100/66 MHz processor system bus speed selection  
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Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
2.2  
Power Management  
2.2.1  
Clock Control Architecture  
The mobile Pentium III processor clock control architecture (Figure 3) has been optimized for  
leading edge deep green desktop and mobile computer designs. The clock control architecture  
consists of seven different clock states: Normal, Stop Grant, Auto Halt, Quick Start, HALT/Grant  
Snoop, Sleep, and Deep Sleep states. The Auto Halt state provides a low-power clock state that  
can be controlled through the software execution of the HLT instruction. The Quick Start state  
provides a very low power and low exit latency clock state that can be used for hardware  
controlled “idle” computer states. The Deep Sleep state provides an extremely low-power state  
that can be used for “Power-On-Suspend” computer states, which is an alternative to shutting off  
the processor’s power. Compared to the Pentium processor exit latency of 1 msec, the exit latency  
of the Deep Sleep state has been reduced to 30 msec in the mobile PentiumIII processor. The Stop  
Grant and Sleep states shown in Figure 3 are intended for use in “Deep Green” desktop and server  
systems — not in mobile systems. Performing state transitions not shown in Figure 3 is neither  
recommended nor supported.  
The Stop Grant and Quick Start clock states are mutually exclusive, i.e., a strapping option on  
signal A15# chooses which state is entered when the STPCLK# signal is asserted. The Quick Start  
state is enabled by strapping the A15# signal to ground at Reset; otherwise, asserting the  
STPCLK# signal puts the processor into the Stop Grant state. The Stop Grant state has a higher  
power level than the Quick Start state and is designed for Symmetric Multi-Processing (SMP)  
platforms. The Quick Start state has a much lower power level, but it can only be used in  
uniprocessor platforms. Table 3 provides clock state characteristics, which are described in detail  
in the following sections.  
2.2.2  
2.2.3  
Normal State  
The Normal state of the processor is the normal operating mode where the processor’s core clock  
is running and the processor is actively executing instructions.  
Auto Halt State  
This is a low-power mode entered by the processor through the execution of the HLT instruction.  
The power level of this mode is similar to the Stop Grant state. A transition to the Normal state is  
made by a halt break event (one of the following signals going active: NMI, INTR, BINIT#,  
INIT#, RESET#, FLUSH#, or SMI#).  
Asserting the STPCLK# signal while in the Auto Halt state will cause the processor to transition  
to the Stop Grant or Quick Start state, where a Stop Grant Acknowledge bus cycle will be issued.  
Deasserting STPCLK# will cause the processor to return to the Auto Halt state without issuing a  
new Halt bus cycle.  
The SMI# interrupt is recognized in the Auto Halt state. The return from the System Management  
Interrupt (SMI) handler can be to either the Normal state or the Auto Halt state. See the Intel®  
Architecture Software Developer’s Manual, Volume III: System Programmer’s Guide for more  
information. No Halt bus cycle is issued when returning to the Auto Halt state from the System  
Management Mode (SMM).  
The FLUSH# signal is serviced in the Auto Halt state. After the on-chip and off-chip caches have  
been flushed, the processor will return to the Auto Halt state without issuing a Halt bus cycle.  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Transitions in the A20M# and PREQ# signals are recognized while in the Auto Halt state.  
Figure 3. Clock Control States  
STPCLK# and  
QSE and SGA  
Normal  
HS=false  
Quick  
Start  
(!STPCLK# and !HS)  
or RESET#  
HLT and  
halt bus cycle  
STPCLK# and  
QSE and SGA  
BCLK  
stopped  
halt  
break  
!STPCLK#  
and HS  
BCLK on  
and QSE  
STPCLK# and  
!QSE and SGA  
Auto  
Halt  
HS=true  
Snoop  
serviced occurs  
Snoop  
Deep  
Sleep  
(!STPCLK#  
and !HS) or  
stop break  
!STPCLK#  
and HS  
Snoop  
occurs  
Snoop  
serviced  
STPCLK# and  
!QSE and SGA  
Snoop  
occurs  
Stop  
Grant  
HALT/Grant  
Snoop  
Snoop  
serviced  
SLP#  
BCLK on  
and !QSE  
BCLK  
stopped  
!SLP# or  
RESET#  
Sleep  
V0001-00  
NOTES: halt break – A20M#, BINIT#, FLUSH#, INIT#, INTR, NMI, PREQ#, RESET#, SMI#  
HLT – HLT instruction executed  
HS – Processor Halt State  
QSE – Quick Start State Enabled  
SGA – Stop Grant Acknowledge bus cycle issued  
stop break – BINIT#, RESET#  
2.2.4  
Stop Grant State  
The processor enters this mode with the assertion of the STPCLK# signal when it is configured for  
Stop Grant state (via the A15# strapping option). The processor is still able to respond to snoop  
requests and latch interrupts. Latched interrupts will be serviced when the processor returns to the  
Normal state. Only one occurrence of each interrupt event will be latched. A transition back to the  
Normal state can be made by the deassertion of the STPCLK# signal or the occurrence of a stop  
break event (a BINIT# or RESET# assertion).  
The processor will return to the Stop Grant state after the completion of a BINIT# bus  
initialization unless STPCLK# has been de-asserted. RESET# assertion will cause the processor to  
immediately initialize itself, but the processor will stay in the Stop Grant state after initialization  
until STPCLK# is deasserted. A transition to the Sleep state can be made by the assertion of the  
SLP# signal.  
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Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
While in the Stop Grant state, assertions of FLUSH#, SMI#, INIT#, INTR, and NMI (or  
LINT[1:0]) will be latched by the processor. These latched events will not be serviced until the  
processor returns to the Normal state. Only one of each event will be recognized upon return to the  
Normal state.  
2.2.5  
Quick Start State  
This is a mode entered by the processor with the assertion of the STPCLK# signal when it is  
configured for the Quick Start state (via the A15# strapping option). In the Quick Start state the  
processor is only capable of acting on snoop transactions generated by the system bus priority  
device. Because of its snooping behavior, Quick Start can only be used in a uniprocessor (UP)  
configuration.  
A transition to the Deep Sleep state can be made by stopping the clock input to the processor. A  
transition back to the Normal state (from the Quick Start state) is made only if the STPCLK#  
signal is deasserted.  
While in this state the processor is limited in its ability to respond to input. It is incapable of  
latching any interrupts, servicing snoop transactions from symmetric bus masters or responding to  
FLUSH# or BINIT# assertions. While the processor is in the Quick Start state, it will not respond  
properly to any input signal other than STPCLK#, RESET#, or BPRI#. If any other input signal  
changes, then the behavior of the processor will be unpredictable. No serial interrupt messages  
may begin or be in progress while the processor is in the Quick Start state.  
RESET# assertion will cause the processor to immediately initialize itself, but the processor will  
stay in the Quick Start state after initialization until STPCLK# is deasserted.  
2.2.6  
2.2.7  
HALT/Grant Snoop State  
The processor will respond to snoop transactions on the system bus while in the Auto Halt, Stop  
Grant, or Quick Start state. When a snoop transaction is presented on the system bus the processor  
will enter the HALT/Grant Snoop state. The processor will remain in this state until the snoop has  
been serviced and the system bus is quiet. After the snoop has been serviced, the processor will  
return to its previous state. If the HALT/Grant Snoop state is entered from the Quick Start state,  
then the input signal restrictions of the Quick Start state still apply in the HALT/Grant Snoop  
state, except for those signal transitions that are required to perform the snoop.  
Sleep State  
The Sleep state is a very low-power state in which the processor maintains its context and the  
phase-locked loop (PLL) maintains phase lock. The Sleep state can only be entered from the Stop  
Grant state. After entering the Stop Grant state, the SLP# signal can be asserted, causing the  
processor to enter the Sleep state. The SLP# signal is not recognized in the Normal or Auto Halt  
states.  
The processor can be reset by the RESET# signal while in the Sleep state. If RESET# is driven  
active while the processor is in the Sleep state then SLP# and STPCLK# must immediately be  
driven inactive to ensure that the processor correctly initializes itself.  
Input signals (other than RESET#) may not change while the processor is in the Sleep state or  
transitioning into or out of the Sleep state. Input signal changes at these times will cause  
unpredictable behavior. Thus, the processor is incapable of snooping or latching any events in the  
Sleep state.  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
While in the Sleep state, the processor can enter its lowest power state, the Deep Sleep state.  
Removing the processor’s input clock puts the processor in the Deep Sleep state. PICCLK may be  
removed in the Sleep state.  
2.2.8  
Deep Sleep State  
The Deep Sleep state is the lowest power mode the processor can enter while maintaining its  
context. The Deep Sleep state is entered by stopping the BCLK input to the processor, while it is  
in the Sleep or Quick Start state. For proper operation, the BCLK input should be stopped in the  
Low state.  
The processor will return to the Sleep or Quick Start state from the Deep Sleep state when the  
BCLK input is restarted. Due to the PLL lock latency, there is a delay of up to 30 msec after the  
clocks have started before this state transition happens. PICCLK may be removed in the Deep  
Sleep state. PICCLK should be designed to turn on when BCLK turns on when transitioning out of  
the Deep Sleep state.  
The input signal restrictions for the Deep Sleep state are the same as for the Sleep state, except  
that RESET# assertion will result in unpredictable behavior.  
Table 3. Clock State Characteristics  
Clock State Exit Latency  
Snooping?  
Yes  
System Uses  
Normal  
N/A  
Normal program execution  
S/W controlled entry idle mode  
H/W controlled entry/exit mobile throttling  
Auto Halt  
Stop Grant  
Quick Start  
Approximately 10 bus clocks  
10 bus clocks  
Yes  
Yes  
Through snoop, to HALT/Grant  
Snoop state: immediate  
Yes  
H/W controlled entry/exit mobile throttling  
Through STPCLK#, to Normal  
state: 8 bus clocks  
Yes  
No  
Supports snooping in the low power states  
HALT/Grant A few bus clocks after the end  
Snoop  
of snoop activity  
Sleep  
To Stop Grant state 10 bus  
clocks  
H/W controlled entry/exit desktop idle mode  
support  
Deep Sleep  
No  
H/W controlled entry/exit mobile powered-on  
suspend support  
30 msec  
NOTE:  
See Table 35 for power dissipation in the low-power states.  
2.2.9  
2.2.10  
10  
Operating System Implications of Low-power States  
There are a number of architectural features of the mobile Pentium III processor that do not  
function in the Quick Start or Sleep state as they do in the Stop Grant state. The time-stamp  
counter and the performance monitor counters are not guaranteed to count in the Quick Start or  
Sleep states. The local APIC timer and performance monitor counter interrupts should be disabled  
before entering the Deep Sleep state or the resulting behavior will be unpredictable.  
Intel SpeedStep Technology  
Some mobile Pentium III processors will be offered with Intel SpeedStep technology. The Intel  
SpeedStep technology lets the processor switch between two core frequencies without having to  
reset the processor or change the system bus frequency. The processor has two bus ratios  
programmed into it instead of one and the GHI# signal controls which one is used. After reset, the  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
processor will start in the lower of its two core frequencies, the “Battery Optimized” mode. An  
operating mode transition to the high core frequency can be made by putting the processor into the  
Deep Sleep state, raising the core voltage, setting GHI# low, and returning to the Normal state.  
This puts the processor into the “Maximum performance” mode. Transitioning back to the low-  
core frequency can be made by reversing these steps. Contact your Intel Field Sales  
Representative for more information on Intel SpeedStep technology.  
2.3  
GTL+ Signals  
The mobile Pentium III processor system bus signals use a variation of the low-voltage swing GTL  
signaling technology. The mobile Pentium III processor system bus specification is similar to the  
Pentium II processor system bus specification, which is a version of GTL with enhanced noise  
margins and less ringing.  
The GTL+ system bus depends on incident wave switching and uses flight time for timing  
calculations of the GTL+ signals, as opposed to capacitive derating. Analog signal simulation of  
the system bus including trace lengths is highly recommended. Contact your field sales  
representative to receive the IBIS models for the mobile Pentium III processor.  
The GTL+ system bus of the Pentium II processor was designed to support high-speed data  
transfers with multiple loads on a long bus that behaves like a transmission line. However, in  
mobile systems the system bus only has two loads (the processor and the chipset) and the bus  
traces are short. It is possible to change the layout and termination of the system bus to take  
advantage of the mobile environment using the same GTL+ I/O buffers. In mobile systems the  
GTL+ system bus is terminated at one end only. This termination is provided on the processor  
core (except for the RESET# signal). Refer to the Mobile Coppermine Processor GTL+ System  
Bus Layout Guideline for details on laying out the GTL+ system bus.  
2.4  
Mobile Pentium III Processor CPUID  
The CPUID instruction does not distinguish between the Pentium III processor and the mobile  
Pentium III processor. After a power-on RESET or when the CPUID version information is  
loaded, the EAX register contains the values shown in Table 4. After the L2 cache is initialized,  
the CPUID cache/TLB descriptors will be the values shown in Table 5.  
Table 4. Mobile Pentium III Processor CPUID  
EAX[31:0]  
Reserved [31:14] Type [13:12] Family [11:8] Model [7:4] Stepping [3:0] Brand ID  
02  
EBX[7:0]  
X
0
6
8
1
Table 5. Mobile Pentium III Processor CPUID Cache and TLB Descriptors  
Cache and TLB Descriptors  
01H, 02H, 03H, 04H, 08H, 0CH, 82H  
Intel Corporation  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
3.0  
Electrical Specifications  
3.1  
Processor System Signals  
Table 6 lists the processor system signals by type. All GTL+ signals are synchronous with the  
BCLK signal. All TAP signals are synchronous with the TCK signal except TRST#. All CMOS  
input signals can be applied asynchronously.  
Table 6. System Signal Groups  
Group Name  
GTL+ Input  
GTL+ Output  
GTL+ I/O  
Signals  
BPRI#, DEFER#, RESET#, RS[2:0]#, RSP#, TRDY#  
PRDY#  
A[35:3]#, ADS#, AERR#, AP[1:0]#, BERR#, BINIT#, BNR#, BP[3:2]#,  
BPM[1:0]#, BREQ0#, D[63:0]#, DBSY#, DEP[7:0]#, DRDY#, HIT#, HITM#,  
LOCK#, REQ[4:0]#, RP#  
1.5V CMOS Input 2  
2.5V CMOS Input 1, 3  
A20M#, BSEL[1:0], FLUSH#, GHI#, IGNNE#, INIT#, LINT0/INTR, LINT1/NMI,  
PREQ#, SLP#, SMI#, STPCLK#  
PWRGOOD  
1.5V Open Drain Output 2 FERR#, IERR#  
Clock 3  
BCLK  
APIC Clock 3  
APIC I/O 2  
PICCLK  
PICD[1:0]  
Thermal Diode  
TAP Input 2  
TAP Output 2  
Power/Other 4  
THERMDA, THERMDC  
TCK, TDI, TMS, TRST#  
TDO  
CLKREF, CMOSREF, EDGECTRLP, NC, PLL1, PLL2, RSVD, RTTIMPEDP,  
TESTHI, TESTLO[2:1], VCC, VCCT , VID[4:0], VREF, VSS  
NOTES:  
1.  
2.  
3.  
4.  
See Section 8.1 for information on the PWRGOOD signal.  
These signals are tolerant to 1.5V only. See Table 7 for the recommended pull-up resistor.  
These signals are tolerant to 2.5V only. See Table 7 for the recommended pull-up resistor.  
VCC is the power supply for the core logic.  
PLL1 and PLL2 are the power supply for the PLL analog section.  
VCCT is the power supply for the system bus buffers.  
VREF is the voltage reference for the GTL+ input buffers.  
VSS is system ground.  
The CMOS, APIC, and TAP inputs can be driven from ground to 1.5V. BCLK, PICCLK, and  
PWRGOOD can be driven from ground to 2.5V. The APIC data and TAP outputs are Open-drain  
and should be pulled up to 1.5V using resistors with the values shown in Table 7. If Open-drain  
drivers are used for input signals, then they should also be pulled up to the appropriate voltage  
using resistors with the values shown in Table 7.  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 7. Recommended Resistors for Open-drain Signals  
Open Drain Signal 1, 2  
Recommended  
Resistor Value (W )  
No pull-up  
GHI# 3  
150 pull-up  
270 pull-up  
680 pull-up  
1K pull-up  
PICD[1:0], TDI, TDO  
SMI#  
STPCLK#  
INIT#, TCK, TMS  
TRST#  
1K pull-down  
1.5K pull-up  
A20M#, FERR#, FLUSH#, IERR#, IGNNE#, LINT0/INTR,  
LINT1/NMI, PREQ#, PWRGOOD, SLP#  
NOTES:  
1.  
The recommendations above are only for signals that are being used. These recommendations are maximum values only;  
stronger pull-ups may be used. Pull-ups for the signals driven by the chipset should not violate the chipset specification.  
Refer to Section 3.1.4 for the required pull-up or pull-down resistors for signals that are not being used.  
2.  
3.  
Open-drain signals must never violate the undershoot specification in Section 4.3. Use stronger pull-ups if there is too  
much undershoot.  
GHI# has an on-die pull-up to VCCT  
.
3.1.1  
Power Sequencing Requirements  
The mobile Pentium III processor has no power sequencing requirements. Intel recommends that  
all of the processor power planes rise to their specified values within one second of each other.  
The VCC power plane must not rise too fast. At least 200 msec (TR) must pass from the time that  
VCC is at 10% of its nominal value until the time that VCC is at 90% of its nominal value (see  
Figure 4).  
Figure 4. Vcc Ramp Rate Requirement  
Vcc  
90% Vcc (nominal)  
Volts  
10% Vcc (nominal)  
T
R  
Time  
3.1.2  
Test Access Port (TAP) Connection  
The TAP interface is an implementation of the IEEE 1149.1 (“JTAG”) standard. Due to the  
voltage levels supported by the TAP interface, Intel recommends that the mobile Pentium III  
processor and the other 1.5-V JTAG specification compliant devices be last in the JTAG chain  
after any devices with 3.3-V or 5.0-V JTAG interfaces within the system. A translation buffer  
should be used to reduce the TDO output voltage of the last 3.3/5.0V device down to the 1.5V  
range that the mobile Pentium III processor can tolerate. Multiple copies of TMS and TRST# must  
be provided, one for each voltage level.  
Intel Corporation  
13  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
A Debug Port and connector may be placed at the start and end of the JTAG chain containing the  
processor, with TDI to the first component coming from the Debug Port and TDO from the last  
component going to the Debug Port. There are no requirements for placing the mobile Pentium III  
processor in the JTAG chain, except for those that are dictated by voltage requirements of the TAP  
signals.  
3.1.3  
3.1.4  
Catastrophic Thermal Protection  
The mobile Pentium III processor does not support catastrophic thermal protection or the  
THERMTRIP# signal. An external thermal sensor must be used to protect the processor and the  
system against excessive temperatures.  
Unused Signals  
All signals named NC and RSVD must be unconnected. The TESTHI signal should be pulled up  
to VCCT. The TESTLO1 and TESTLO2 signal should be pulled down to V . Unused GTL+  
SS  
inputs, outputs and bi-directional signals should be unconnected. Unused CMOS active low inputs  
should be connected to VCCT and unused active high inputs should be connected to VSS. Unused  
Open-drain outputs should be unconnected. If the processor is configured to enter the Quick Start  
state rather than the Stop Grant state, then the SLP# signal should be connected to VCCT. When  
tying any signal to power or ground, a resistor will allow for system testability. For unused  
signals, Intel suggests that 1.5-kW resistors are used for pull-ups and 1-kW resistors are used for  
pull-downs.  
If the local APIC is hardware disabled, then PICCLK and PICD[1:0] should be tied to VSS with a  
1-kW resistor, one resistor can be used for the three signals. Otherwise PICCLK must be driven  
with a clock that meets specification (see Table 19) and the PICD[1:0] signals must be pulled up  
to VCCT with 150-W resistors, even if the local APIC is not used.  
BSEL1 must be connected to VSS and BSEL0 must be pulled up to VCCT. VID[4:0] should be  
connected to VSS if they are not used.  
If the TAP signals are not used then the inputs should be pulled to ground with 1-kW resistors and  
TDO should be left unconnected.  
3.1.5  
Signal State in Low-power States  
3.1.5.1  
System Bus Signals  
All of the system bus signals have GTL+ input, output, or input/output drivers. Except when  
servicing snoops, the system bus signals are tri-stated and pulled up by the termination resistors.  
Snoops are not permitted in the Sleep and Deep Sleep states.  
3.1.5.2  
CMOS and Open-drain Signals  
The CMOS input signals are allowed to be in either the logic high or low state when the processor  
is in a low-power state. In the Auto Halt and Stop Grant states these signals are allowed to toggle.  
These input buffers have no internal pull-up or pull-down resistors and system logic can use  
CMOS or Open-drain drivers to drive them.  
The Open-drain output signals have open drain drivers and external pull-up resistors are required.  
One of the two output signals (IERR#) is a catastrophic error indicator and is tri-stated (and  
14  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
pulled-up) when the processor is functioning normally. The FERR# output can be either tri-stated  
or driven to VSS when the processor is in a low-power state depending on the condition of the  
floating point unit. Since this signal is a DC current path when it is driven to V , Intel  
SS  
recommends that the software clears or masks any floating-point error condition before putting the  
processor into the Deep Sleep state.  
3.1.5.3  
Other Signals  
The system bus clock (BCLK) must be driven in all of the low-power states except the Deep Sleep  
state. The APIC clock (PICCLK) must be driven whenever BCLK is driven unless the APIC is  
hardware disabled or the processor is in the Sleep state. Otherwise, it is permitted to turn off  
PICCLK by holding it at VSS. The system bus clock should be held at VSS when it is stopped in the  
Deep Sleep state.  
In the Auto Halt and Stop Grant states the APIC bus data signals (PICD[1:0]) may toggle due to  
APIC bus messages. These signals are required to be tri-stated and pulled-up when the processor  
is in the Quick Start, Sleep, or Deep Sleep states unless the APIC is hardware disabled.  
3.2  
Power Supply Requirements  
3.2.1  
Decoupling Recommendations  
The amount of bulk decoupling required on the VCC and VCCT planes to meet the voltage tolerance  
requirements for the mobile Pentium III processor are a strong function of the power supply  
design. Contact your Intel Field Sales Representative for tools to help determine how much bulk  
decoupling is required. The processor core power plan (VCC) should have eight 0.1-mF high  
frequency decoupling capacitors placed underneath the die and twenty 0.1-mF mid frequency  
decoupling capacitors placed around the die as close to the die as flex solution allows. The system  
bus buffer power plane (VCCT) should have twenty 0.1-mF high frequency decoupling capacitors  
around the die.  
3.2.2  
Voltage Planes  
All VCC and V pins/balls must be connected to the appropriate voltage plane. All V  
and VREF  
SS  
CCT  
pins/balls must be connected to the appropriate traces on the system electronics. In addition to the  
main VCC, VCCT, and VSS power supply signals, PLL1 and PLL2 provide analog decoupling to the  
PLL section. PLL1 and PLL2 should be connected according to Figure 5. Do not connect PLL2  
directly to V . Appendix A contains the RLC filter specification.  
SS  
Figure 5. PLL RLC Filter  
L 1  
R 1  
P L L 1  
P L L 2  
V
CCT  
C 1  
V0027-01  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
3.3  
System Bus Clock and Processor Clocking  
The 2.5-V BCLK clock input directly controls the operating speed of the system bus interface. All  
system bus timing parameters are specified with respect to the rising edge of the BCLK input. The  
mobile Pentium III processor core frequency is a multiple of the BCLK frequency. The processor  
core frequency is configured during manufacturing. The configured bus ratio is visible to software  
in the Power-on configuration register, see Section 7.2 for details.  
Multiplying the bus clock frequency is necessary to increase performance while allowing for  
easier distribution of signals within the system. Clock multiplication within the processor is  
provided by the internal Phase Lock Loop (PLL), which requires a constant frequency BCLK  
input. During Reset or on exit from the Deep Sleep state, the PLL requires some amount of time to  
acquire the phase of BCLK. This time is called the PLL lock latency, which is specified in  
Section 3.7, AC timing parameters T18 and T47.  
3.4  
Intel SpeedStep Technology  
The mobile Pentium III processor featuring Intel SpeedStep technology is specified to operate in  
either of two modes, the “Maximum Performance Mode” or the “Battery Optimized Mode”. Each  
frequency and voltage pair identifies the operating mode. The voltage provided to the processor  
must meet the core voltage specification for the current operating mode. If an operating mode  
transition is made, then the system logic must direct the voltage regulator to regulate to the voltage  
specification of the other mode. After reset, the processor will start in the lower of its two core  
frequencies, so the core voltage must meet the lower voltage specification. Any RESET# assertion  
will force the processor to the lower frequency, and the core voltage must behave appropriately.  
INIT# assertions ("soft" resets) and APIC bus INIT messages do not change the operating mode of  
the processor. Some electrical and thermal specifications are for a specific voltage and frequency.  
The mobile Pentium III processor featuring Intel SpeedStep technology will meet the electrical and  
thermal specifications specific to the current operating mode and is not guaranteed to meet the  
electrical and thermal specifications specific to the opposite operating mode. The timing  
specifications in Table 23 must be met when performing an operating mode transition.  
3.5  
Maximum Ratings  
Table 8 contains the mobile Pentium III processor stress ratings. Functional operation at the  
absolute maximum and minimum is neither implied nor guaranteed. The processor should not  
receive a clock while subjected to these conditions. Functional operating conditions are provided  
in the AC and DC tables. Extended exposure to the maximum ratings may affect device reliability.  
Furthermore, although the processor contains protective circuitry to resist damage from static  
electric discharge, one should always take precautions to avoid high static voltages or electric  
fields.  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 8. Mobile Pentium III Processor Absolute Maximum Ratings  
Symbol  
TStorage  
VCC(Abs)  
VCCT  
Parameter  
Min  
–40  
Max  
Unit  
Notes  
Storage Temperature  
85  
°C Note 1  
Supply Voltage with respect to VSS  
–0.5 2.1  
–0.3 2.1  
V
V
System Bus Buffer Voltage with respect to V SS  
VIN GTL  
VIN GTL  
VIN15  
System Bus Buffer DC Input Voltage with respect to V SS –0.3 2.1  
V
Notes 2, 3  
System Bus Buffer DC Input Voltage with respect to V CCT  
1.5V Buffer DC Input Voltage with respect to V SS  
2.5V Buffer DC Input Voltage with respect to V SS  
VID ball/pin DC Input Voltage with respect to VSS  
VID Current  
VCCT + 0.7V V  
Notes 2, 4  
Note 5  
–0.3 2.1  
–0.3 3.3  
V
V
V
VIN25  
Note 6  
VINVID  
5.5  
5
IVID  
mA Note 7  
NOTES:  
1.  
The shipping container is only rated for 65°C.  
2.  
3.  
Parameter applies to the GTL+ signal groups only. Compliance with both V  
specifications is required.  
IN GTL  
The voltage on the GTL+ signals must never be below –0.3 or above 2.1V with respect to ground.  
4.  
The voltage on the GTL+ signals must never be above V + 0.7V even if it is less than V + 2.1V, or a short to ground  
CCT SS  
may occur.  
5.  
6.  
7.  
Parameter applies to CMOS, Open-drain, APIC, and TAP bus signal groups only.  
Parameter applies to BCLK, CLKREF, PICCLK and PWRGOOD signals.  
Parameter applies to each VID pin/ball individually.  
3.6  
DC Specifications  
Table 9 through Table 13 lists the DC specifications for the mobile Pentium III processor.  
Specifications are valid only while meeting specifications for the junction temperature, clock  
frequency, and input voltages. Care should be taken to read all notes associated with each  
parameter.  
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Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 9. Power Specificationsfor Mobile Pentium III Processor with Intel SpeedStep Technology1  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min  
Typ Max  
Unit Notes  
VCC  
Transient VCC for core logic  
1.25  
1.35 1.45  
V
V
±100 mV  
±115 mV, Note 7  
1.485 1.60 1.715  
VCC,DC  
Static VCC for core logic  
1.25 1.35 1.45  
V
V
±100 mV  
-115/+40 mV,  
Note 2  
1.485 1.60 1.640  
VCC for System Bus Buffers, Transient tolerance 1.385 1.50 1.615  
VCCT  
V
V
±115 mV, Note 7  
±3%, Note 2  
Notes 4  
VCCT,DC VCC for System Bus Buffers, Static tolerance  
1.455 1.50 1.545  
ICC  
Current for V CC at core frequency  
at 500 MHz & 1.35V  
9.5  
12.6  
13.6  
A
A
A
at 600 MHz & 1.60V  
at 650 MHz & 1.60V  
ICCT  
Current for V CCT  
2.5  
A
Notes 3, 4  
Notes 4  
ICC,SG  
Processor Stop Grant and Auto Halt current  
at 1.35V  
at 1.60V  
1.7  
2.2  
A
A
ICC,QS  
Processor Quick Start and Sleep current  
Note 4  
at 1.35V  
at 1.60V  
1.5  
1.9  
A
A
ICC,DSLP Processor Deep Sleep Leakage current  
Notes 4  
at 1.35V  
at 1.60V  
1.2  
1.6  
A
A
dICC/dt  
VCC power supply current slew rate  
1400  
TBD  
Notes 5, 6  
Notes 5, 6  
A/ms  
A/ms  
dICCT/dt VCCT power supply current slew rate  
NOTES:  
1.  
Unless otherwise noted, all specifications in this table apply to all processor frequencies. Processors with Intel SpeedStep  
technology will comply with the ICCx max specification for the current mode of operation.  
,
2.  
Static voltage regulation includes: DC output initial voltage set point adjust, output ripple and noise, output load ranges  
specified in Table 9 above, temperature, and warm up.  
3.  
4.  
5.  
ICCT is the current supply for the system bus buffers, including the on-die termination.  
ICCx,max specifications are specified at VCC,DC max, VCCT,max, and 100°C and under maximum signal loading conditions.  
Based on simulations and averaged over the duration of any change in current. Use to compute the maximum inductance  
and reaction time of the voltage regulator. This parameter is not tested.  
6.  
7.  
Maximum values specified by design/characterization at nominal VCC and VCCT  
VCCx must be within this range under all operating conditions, including maximum current transients. VCCx must return to  
within the static voltage specification, VCCx DC, within 100 ms after a transient event. The average of VCCx over time must  
.
,
not exceed 1.65V, as an arbitrarily large time span may be used for this average.  
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Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 10. Power Specifications for Fixed Frequency Mobile Pentium III Processor  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min  
Typ Max  
Unit Notes  
VCC  
Transient VCC for core logic  
1.25  
1.35 1.45  
V
V
±100 mV  
±115 mV, Note 7  
1.485 1.60 1.715  
VCC,DC  
Static VCC for core logic  
1.25 1.35 1.45  
V
V
±100 mV  
-115/+40 mV,  
Note 2  
1.485 1.60 1.640  
VCC for System Bus Buffers, Transient tolerance 1.385 1.50 1.615  
VCCT  
V
V
±115 mV, Note 7  
±3%, Note 2  
Note 4  
VCCT,DC VCC for System Bus Buffers, Static tolerance  
1.455 1.50 1.545  
ICC  
Current for V CC at core frequency  
at 400 MHz & 1.35V  
at 500 MHz & 1.35V  
at 450 MHz & 1.60V  
at 500 MHz & 1.60V  
7.8  
A
A
A
A
9.5  
9.6  
10.6  
ICCT  
Current for V CCT  
2.5  
A
A
Notes 3, 4  
Notes 1,4  
ICC,SG  
Processor Stop Grant and  
Auto Halt current  
1.29  
ICC,QS  
Processor Quick Start and  
Sleep current  
994  
700  
mA  
mA  
Notes 1,4  
Notes 1,4  
ICC,DSLP Processor Deep Sleep  
leakage current  
dICC/dt  
VCC power supply current slew rate  
1400  
TBD  
Notes 5, 6  
Notes 5, 6  
A/ms  
A/ms  
dICCT/dt VCCT power supply current slew rate  
NOTES:  
1.  
For ICC,SG , ICC,QS , and ICC,DSLP specifications in the case of 500MHz & 1.35V fixed frequency processor, refer to these  
values listed in Table 9 at 1.35V.  
2.  
Static voltage regulation includes: DC output initial voltage set point adjust, output ripple and noise, output load ranges  
specified in Table 10 above, temperature, and warm up.  
3.  
4.  
5.  
ICCT is the current supply for the system bus buffers, including the on-die termination.  
ICCx,max specifications are specified at VCC,DC max, VCCT,max, and 100°C and under maximum signal loading conditions.  
Based on simulations and averaged over the duration of any change in current. Use to compute the maximum inductance  
and reaction time of the voltage regulator. This parameter is not tested.  
6.  
7.  
Maximum values specified by design/characterization at nominal VCC and VCCT  
VCCx must be within this range under all operating conditions, including maximum current transients. VCCx must return to  
within the static voltage specification, VCCx DC, within 100 ms after a transient event. The average of VCCx over time must  
not exceed 1.65V, as an arbitrarily large time span may be used for this average.  
.
,
The signals on the mobile Pentium III processor system bus are included in the GTL+ signal  
group. These signals are specified to be terminated to V . The DC specifications for these  
CCT  
signals are listed in Table 11 and the termination and reference voltage specifications for these  
signals are listed in Table 12. The mobile Pentium III processor requires external termination and a  
V . Refer to the Mobile Coppermine Processor GTL+ System Bus Layout Guideline for full  
REF  
details of system V  
and V  
requirements. The CMOS, Open-drain, and TAP signals are  
CCT  
REF  
designed to interface at 1.5V levels to allow connection to other devices. BCLK and PICCLK are  
designed to receive a 2.5-V clock signal. The DC specifications for these signals are listed in  
Table 13.  
Intel Corporation  
19  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 11. GTL+ Signal Group DC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol  
Parameter  
Min Max  
Unit Notes  
VOH  
Output High Voltage  
V
See VCCT,max in  
Table 12  
RON  
IL  
Output Low Drive Strength  
16.67  
W
Leakage Current for Inputs, Outputs and I/Os  
±100 mA  
Note 1  
NOTE:  
(0 £ V  
IN/OUT  
£ V ).  
CCT  
Table 12. GTL+ Bus DC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min  
Typ  
Max  
Unit Notes  
VCCT  
VREF  
RTT  
Bus Termination Voltage  
1.385  
1.5  
1.615  
V
Note 1  
Input Reference Voltage  
Bus Termination Strength  
2/3VCCT – 2% 2/3VCCT 2/3VCCT + 2% V  
±2%, Note 2  
50  
56  
65  
On-die RTT  
Note 3  
,
W
NOTES:  
1.  
For simulation use 1.50V ±10%. For typical simulation conditions use V  
(1.5V –10%).  
CCTmin  
2.  
3.  
V
should be created from V  
by a voltage divider.  
REF  
CCT  
The RESET# signal does not have an on-die RTT. It requires an off-die 56.2W ±1% terminating resistor connected to  
V
CCT  
.
20  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 13. Clock, APIC, TAP, CMOS, and Open-drain Signal Group DC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
VIL15 Input Low Voltage, 1.5V CMOS  
Min  
Max  
Unit Notes  
–0.15  
V
VCMOSREFmin  
– 200 mV  
VIL25  
Input Low Voltage, 2.5V CMOS  
–0.3  
–0.3  
0.7  
V
V
V
Notes 1, 2  
VIL,BCLK Input Low Voltage, BCLK  
0.7  
Note 2  
VIH15  
VIH25  
Input High Voltage, 1.5V CMOS  
Input High Voltage, 2.5V CMOS  
VCCT  
+
VCMOSREFmax  
200 mV  
2.0  
1.7  
2.625  
2.625  
0.4  
V
Notes 1, 2  
VIH,BCLK Input High Voltage, BCLK  
V
Note 2  
VOL  
Output Low Voltage  
V
Note 3  
VOH15  
VOH25  
VOH,VID  
Output High Voltage, 1.5V CMOS N/A  
Output High Voltage, 2.5V CMOS N/A  
Output High Voltage, VID ball/pins N/A  
1.615  
2.625  
5.50  
V
All outputs are Open-drain  
All outputs are Open-drain  
5V + 10%  
V
V
VCMOSREF CMOSREF Voltage  
VCLKREF CLKREF Voltage  
0.90  
1.175  
10  
1.10  
V
Note 4  
1.25V ±6% 4  
1.325  
V
IOL  
IL  
Output Low Current  
mA  
mA  
Note 6  
Leakage Current for Inputs,  
Outputs and I/Os  
±100  
Note 5  
NOTES:  
1.  
2.  
Parameter applies to the PICCLK and PWRGOOD signals only.  
VILx,min and VIHx,max only apply when BCLK and PICCLK are stopped. BCLK and PICCLK should be stopped in the low  
state. See Table 24 for the BCLK voltage range specifications for when BCLK is running. See Table 25 for the PICCLK  
voltage range specifications for when PICCLK is running.  
Parameter measured at 10 mA.  
3.  
4.  
5.  
6.  
VCMOSREF and VCLKREF should be created from a stable voltage supply using a voltage divider.  
(0 £  
£ VIHx,max).  
VIN/OUT  
Specified as the minimum amount of current that the output buffer must be able to sink. However, VOL,max cannot be  
guaranteed if this specification is exceeded.  
3.7  
AC Specifications  
3.7.1  
System Bus, Clock, APIC, TAP, CMOS, and Open-drain AC  
Specifications  
Table 14 through Table 22 provide AC specifications associated with the mobile Pentium III  
processor. The AC specifications are divided into the following categories: Table 14 contains the  
system bus clock specifications; Table 15 contains the processor core frequencies; Table 16  
contains the GTL+ specifications; Table 17 contains the CMOS and Open-drain signal groups  
specifications; Table 18 contains timings for the reset conditions; Table 19 contains the APIC  
specifications; Table 20 contains the TAP specifications; and Table 21 and Table 22 contain the  
power management timing specifications.  
All system bus AC specifications for the GTL+ signal group are relative to the rising edge of the  
BCLK input at 1.25V. All GTL+ timings are referenced to VREF for both “0” and “1” logic levels  
unless otherwise specified. All APIC, TAP, CMOS, and Open-drain signals except PWRGOOD  
are referenced to 0.75V.  
Intel Corporation  
21  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
1
Table 14. System Bus Clock AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
System Bus Frequency  
BCLK Period  
Min  
Typ Max Unit Figure  
Notes  
100  
10  
MHz  
ns  
T1  
T2  
T3  
T4  
T5  
Figure 7 Note 2  
BCLK Period Stability  
BCLK High Time  
BCLK Low Time  
BCLK Rise Time  
BCLK Fall Time  
±250 ps  
Notes 3, 4  
2.85  
ns  
ns  
Figure 7 at>1.7V  
2.55  
Figure 7 at<0.7V  
0.175  
0.175  
0.875 ns  
0.875 ns  
Figure 7 (0.9V – 1.6V)  
Figure 7 (1.6V – 0.9V)  
T6  
NOTES:  
1.  
All AC timings for GTL+ and CMOS signals are referenced to the BCLK rising edge at 1.25V. All CMOS signals are  
referenced at 0.75V.  
2.  
3.  
4.  
The BCLK period allows a +0.5 ns tolerance for clock driver variation.  
Not 100% tested. Specified by design/characterization.  
Measured on the rising edge of adjacent BCLKs at 1.25V. The jitter present must be accounted for as a component of  
BCLK skew between devices.  
Table 15. Valid Mobile PentiumIII Processor Frequencies  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
BCLK Frequency  
(MHz)  
Frequency Multiplier  
Core Frequency  
(MHz)  
Power-on Configuration  
bits [25:22]  
100  
4.0  
400  
0010  
100  
100  
100  
4.5  
5
450  
500  
600  
650  
0110  
0000  
1011  
1111  
6
100  
6.5  
NOTE:  
While other combinations of bus and core frequencies are defined, operation at frequencies other than those listed  
above will not be validated by Intel and are not guaranteed. The frequency multiplier is programmed into the  
processor when it is manufactured and it cannot be changed.  
22  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
1
Table 16. GTL+ Signal Groups AC Specifications  
RTT = 56W internally terminated to VCCT ; VREF = 2/3VCCT ; load = 0 pF;  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol  
T7  
Parameter  
Min  
0.2  
1.2  
0.80  
1
Max Unit Figure  
Notes  
GTL+ Output Valid Delay  
GTL+ Input Setup Time  
GTL+ Input Hold Time  
RESET# Pulse Width  
2.7  
ns  
ns  
ns  
ms  
Figure 8  
Figure 9  
Figure 9  
T8  
Notes 2, 3  
Note 4  
T9  
T10  
Note 5  
Figure 10,  
Figure 11  
NOTES:  
1.  
All AC timings for GTL+ signals are referenced to the BCLK rising edge at 1.25V. All GTL+ signals are referenced at  
V
REF  
.
2.  
3.  
4.  
RESET# can be asserted (active) asynchronously, but must be de-asserted synchronously.  
Specification is for a minimum 0.40V swing.  
Specification is for a maximum 1.0V swing.  
5.  
After V , V , and BCLK become stable and PWRGOOD is asserted.  
CC CCT  
1, 2  
Table 17. CMOS and Open-drain Signal Groups AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min Max Unit  
Figure  
Notes  
T14  
1.5V Input Pulse Width, except PWRGOOD and  
LINT[1:0]  
2
BCLKs Figure 8 Active and  
Inactive states  
T14B  
T15  
LINT[1:0] Input Pulse Width  
PWRGOOD Inactive Pulse Width  
6
BCLKs Figure 8 Note 3  
10  
BCLKs Figure 11 Notes 4, 5  
NOTES:  
1.  
All AC timings for CMOS and Open-drain signals are referenced to the BCLK rising edge at 1.25V. All CMOS and Open-  
drain signals are referenced at 0.75V.  
2.  
3.  
Minimum output pulse width on CMOS outputs is 2 BCLKs.  
This specification only applies when the APIC is enabled and the LINT1 or LINT0 signal is configured as an edge  
triggered interrupt with fixed delivery, otherwise specification T14 applies.  
4.  
5.  
When driven inactive, or after VCC, VCCT and BCLK become stable. PWRGOOD must remain below VIL25,max from Table 13  
until all the voltage planes meet the voltage tolerance specifications in Table 9 and BCLK has met the BCLK AC  
specifications in Table 14 for at least 10 clock cycles. PWRGOOD must rise glitch-free and monotonically to 2.5V.  
If the BCLK Settling Time specification (T60) can be guaranteed at power-on reset then the PWRGOOD Inactive Pulse  
Width specification (T15) is waived and BCLK may start after PWRGOOD is asserted. PWRGOOD must still remain  
below V  
IL25,max  
until all the voltage planes meet the voltage tolerance specifications.  
Intel Corporation  
23  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 18. Reset Configuration AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min Max Unit  
Figure  
Notes  
Figure 8.  
Figure 9  
T16  
T17  
Reset Configuration Signals (A[15:5]#, BREQ0#, 4 BCLKs  
FLUSH#, INIT#, PICD0) Setup Time  
Before  
deassertion of  
RESET#  
Figure 8.  
Figure 9  
Reset Configuration Signals (A[15:5]#, BREQ0#, 2  
FLUSH#, INIT#, PICD0) Hold Time  
20  
BCLKs  
ms  
After clock that  
deasserts  
RESET#  
T18  
RESET#/PWRGOOD Setup Time  
1
Figure 11 Before  
deassertion of  
RESET# 1  
NOTE:  
At least 1 ms must pass after PWRGOOD rises above V  
from Table 13 and BCLK meets its AC timing  
IH25,min  
specification until RESET# may be deasserted.  
Table 19. APIC Bus Signal AC Specifications1  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min  
2
Max Unit Figure  
Notes  
T21  
T22  
PICCLK Frequency  
33.3 MHz  
Note 2  
PICCLK Period  
30  
500  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Figure 6  
Figure 6  
Figure 6  
Figure 6  
Figure 6  
Figure 9  
Figure 9  
Figure 8  
T23  
PICCLK High Time  
PICCLK Low Time  
PICCLK Rise Time  
PICCLK Fall Time  
PICD[1:0] Setup Time  
PICD[1:0] Hold Time  
PICD[1:0] Valid Delay  
10.5  
10.5  
at>1.7V  
T24  
at<0.7V  
T25  
0.25 3.0  
0.25 3.0  
8.0  
(0.7V – 1.7V)  
(1.7V – 0.7V)  
Note 3  
T26  
T27  
T28  
2.5  
Note 3  
T29  
1.5  
10.0 ns  
Notes 3, 4, 5  
NOTES:  
1.  
2.  
All AC timings for APIC signals are referenced to the PICCLK rising edge at 1.25V. All CMOS signals are referenced at  
0.75V.  
The minimum frequency is 2 MHz when PICD0 is at 1.5V at reset. If PICD0 is strapped to V at reset then the minimum  
SS  
frequency is 0 MHz.  
3.  
4.  
5.  
Referenced to PICCLK Rising Edge.  
For Open-drain signals, Valid Delay is synonymous with Float Delay.  
Valid delay timings for these signals are specified into 150W to 1.5V and 0 pF of external load. For real system timings  
these specifications must be derated for external capacitance at 105 ps/pF.  
24  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 20. TAP Signal AC Specifications1  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter Min Max Unit Figure Notes  
TCK Frequency  
T30  
T31  
T32  
T33  
T34  
T35  
T36  
T37  
T38  
T39  
T40  
T41  
T42  
T43  
T44  
NOTES:  
16.67 MHz  
TCK Period  
60  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Figure 6  
Figure 6 ³ 1.2V, Note 2  
Figure 6  
TCK High Time  
25.0  
25.0  
TCK Low Time  
£ 0.6V, Note 2  
TCK Rise Time  
5.0  
5.0  
Figure 6 (0.6V – 1.2V), Notes 2, 3  
Figure 6 (1.2V – 1.6V), Notes 2, 3  
Figure 13 Asynchronous, Note 2  
Figure 12 Note 4  
TCK Fall Time  
TRST# Pulse Width  
TDI, TMS Setup Time  
TDI, TMS Hold Time  
TDO Valid Delay  
40.0  
5.0  
14.0  
Figure 12 Note 4  
1.0 10.0 ns  
25.0 ns  
Figure 12 Notes 5, 6  
TDO Float Delay  
Figure 12 Notes 2, 5, 6  
Figure 12 Notes 5, 7, 8  
Figure 12 Notes 2, 5, 7, 8  
Figure 12 Notes 4, 7, 8  
Figure 12 Notes 4, 7, 8  
All Non-Test Outputs Valid Delay  
All Non-Test Outputs Float Delay  
All Non-Test Inputs Setup Time  
All Non-Test Inputs Hold Time  
2.0 25.0 ns  
25.0 ns  
5.0  
ns  
ns  
13.0  
1.  
All AC timings for TAP signals are referenced to the TCK rising edge at 0.75V. All TAP and CMOS signals are referenced  
at 0.75V.  
2.  
3.  
4.  
5.  
6.  
Not 100% tested. Specified by design/characterization.  
1 ns can be added to the maximum TCK rise and fall times for every 1 MHz below 16 MHz.  
Referenced to TCK rising edge.  
Referenced to TCK falling edge.  
Valid delay timing for this signal is specified into 150W terminated to 1.5V and 0 pF of external load. For real system  
timings these specifications must be derated for external capacitance at 105 ps/pF.  
7.  
8.  
Non-Test Outputs and Inputs are the normal output or input signals (except TCK, TRST#, TDI, TDO, and TMS). These  
timings correspond to the response of these signals due to boundary scan operations.  
During Debug Port operation use the normal specified timings rather than the TAP signal timings.  
Intel Corporation  
25  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
1
Table 21. Quick Start/Deep Sleep AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter  
Min Max Unit  
Figure  
Notes  
T45  
T46  
T47  
Stop Grant Cycle Completion to Clock Stop  
100  
0
BCLKs Figure 14  
Stop Grant Cycle Completion to Input Signals Stable  
Deep Sleep PLL Lock Latency  
0
Figure 14  
ms  
ms  
30  
Note 2  
Figure 14,  
Figure 15  
T48  
STPCLK# Hold Time from PLL Lock  
0
8
ns  
Figure 14  
T49  
Input Signal Hold Time from STPCLK# Deassertion  
BCLKs Figure 14  
NOTES:  
1.  
2.  
Input signals other than RESET# and BPRI# must be held constant in the Quick Start state.  
The BCLK Settling Time specification (T60) applies to Deep Sleep state exit under all conditions.  
Table 22. Stop Grant/Sleep/Deep Sleep AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.60V ±115 mV; V CCT = 1.50V ±115 mV  
Symbol Parameter Min Max Unit  
SLP# Signal Hold Time from Stop Grant Cycle Completion 100 BCLKs Figure 15  
ns Figure 15  
BCLKs Figure 15  
ns Figure 15  
Figure  
T50  
T51  
T52  
T54  
T55  
SLP# Assertion to Input Signals Stable  
SLP# Assertion to Clock Stop  
0
10  
0
SLP# Hold Time from PLL Lock  
STPCLK# Hold Time from SLP# Deassertion  
Input Signal Hold Time from SLP# Deassertion  
10  
10  
BCLKs Figure 15  
BCLKs Figure 15  
T56  
NOTE:  
Input signals other than RESET# must be held constant in the Sleep state. The BCLK Settling Time specification  
(T60) applies to Deep Sleep state exit under all conditions.  
Table 23. Intel SpeedStep Technology AC Specifications  
TJ = 0°C to 100°C; VCC = 1.35V ±100 mV or 1.6V ±115 mV; V CCT = 1.5V ±115 mV  
Symbol Parameter Min Max Unit Figure  
T57 GHI# Setup Time from BCLK Restart  
Notes  
150  
30  
ns  
Figure 16 Note 1  
Figure 16 Note 1  
Figure 16 Note 1  
Figure 16 Notes 2, 3  
T58  
T59  
GHI# Hold Time from BCLK Restart  
GHI# Sample Delay  
ms  
10  
ms  
T60  
BCLK Settling Time  
150  
ns  
NOTES:  
1.  
2.  
3.  
GHI# is ignored until 10 ms after BCLK stops, the setup and hold window must occur after this time.  
BCLK must meet the BCLK AC specification from Table 14 within 150 ns of turning on (rising above VIL,BCLK).  
This specification applies to the exit from the Deep Sleep state whether or not a Intel SpeedStep technology operating  
mode transition occurs.  
26  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 6 through Figure 16 are to be used in conjunction with Table 14 through Table 23.  
Figure 6. PICCLK/TCK Clock Timing Waveform  
T
h
Tr  
VH  
VTRIP  
CLK  
VL  
T
f
T
l
T
p
D0003-01  
NOTES:  
T
=
=
=
=
=
T34, T25 (Rise Time)  
T35, T26 (Fall Time)  
T32, T23 (High Time)  
T33, T24 (Low Time)  
T31, T22 (Period)  
r
T
f
T
h
T
T
p
l
VTRIP  
VL  
VH  
=
=
=
1.25V for PICCLK; 0.75V for TCK  
0.7V for PICCLK; 0.6V for TCK  
1.7V for PICCLK; 1.2V for TCK  
Figure 7. BCLK Timing Waveform  
T
h
T
r
VH  
1.6V  
0.9V  
CLK  
VTRIP  
VL  
T
f
T
l
T
p
D0003-02  
NOTES:  
T
=
=
=
=
=
=
=
=
T5 (Rise Time)  
T6 (Fall Time)  
T3 (High Time)  
T4 (Low Time)  
T1 (Period)  
1.25V for BCLK  
0.7V for BCLK  
1.7V for BCLK  
r
T
f
T
h
T
l
T
p
VTRIP  
VL  
VH  
Intel Corporation  
27  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 8. Valid Delay Timings  
CLK  
x
T
Tx  
Signal  
V
Valid  
Valid  
pw  
T
D0004-00  
NOTES:  
T
=
=
=
T7, T11, T29 (Valid Delay)  
T14, T14B (Pulse Width)  
x
T
pw  
V
V
REF  
for GTL+ signal group; 0.75V for CMOS, Open-drain, APIC, and TAP signal groups  
Figure 9. Setup and Hold Timings  
CLK  
Ts  
Th  
Signal  
V Valid  
D0005-00  
NOTES:  
T
=
=
=
T
8, T12, T27 (Setup Time)  
s
T
T9, T13, T28 (Hold Time)  
V
h
V
for GTL+ signals; 0.75V for CMOS, APIC, and TAP signals  
REF  
28  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 10. Cold/Warm Reset and Configuration Timings  
BCLK  
T
u
T
t
RESET#  
T
v
T
w
T
x
Configuration  
(A[15:5], BREQ0#,  
FLUSH#, INIT#,  
PICD0)  
Valid  
D0006-01  
NOTES:  
T
=
=
=
T9 (GTL+ Input Hold Time)  
T8 (GTL+ Input Setup Time)  
T10 (RESET# Pulse Width)  
t
T
u
T
v
T18 (RESET#/PWRGOOD Setup Time)  
T16 (Reset Configuration Signals (A[15:5]#, BREQ0#, FLUSH#, INIT#, PICD0) Setup Time)  
T17 (Reset Configuration Signals (A[15:5]#, BREQ0#, FLUSH#, INIT#, PICD0) Hold Time)  
T
T
=
=
w
x
Figure 11. Power-on Reset Timings  
BCLK  
V
,
CCT,  
V
,
CC  
REF  
V
VIH25 ,min  
PWRGOOD  
VIL25,max  
T
a
T
b
RESET#  
D0007-01  
NOTES:  
T
T
b
=
=
T15 (PWRGOOD Inactive Pulse Width)  
T10 (RESET# Pulse Width)  
a
Intel Corporation  
29  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 12. Test Timings (Boundary Scan)  
TCK  
T
v
T
w
TDI, TMS  
0.75V  
T
r
T
s
Input  
Signals  
T
x
T
u
TDO  
T
y
T
z
Output  
Signals  
D0008-01  
NOTES:  
T
=
=
=
=
=
=
=
=
T43 (All Non-Test Inputs Setup Time)  
T44 (All Non-Test Inputs Hold Time)  
T40 (TDO Float Delay)  
T37 (TDI, TMS Setup Time)  
T38 (TDI, TMS Hold Time)  
T39 (TDO Valid Delay)  
T41 (All Non-Test Outputs Valid Delay)  
T42 (All Non-Test Outputs Float Delay)  
r
T
s
T
u
T
v
T
w
T
x
T
y
T
z
Figure 13. Test Reset Timings  
0.75V  
TRST#  
T
q
D0009-01  
NOTE:  
T
q
=
T36 (TRST# Pulse Width)  
30  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 14. Quick Start/Deep Sleep Timing  
Normal  
Quick Start  
Running  
Deep Sleep  
Normal  
Quick Start  
Running  
BCLK  
Tv  
STPCLK#  
Ty  
Tx  
CPU bus  
SLP#  
stpgnt  
Tz  
Tw  
Changing  
Compatibility  
Signals  
Frozen  
V0010-00  
NOTES:  
T
=
=
=
=
=
T45 (Stop Grant Acknowledge Bus Cycle Completion to Clock Shut Off Delay)  
T46 (Setup Time to Input Signal Hold Requirement)  
T47 (Deep Sleep PLL Lock Latency)  
T48 (PLL lock to STPCLK# Hold Time)  
T49 (Input Signal Hold Time)  
v
T
w
T
T
T
x
y
z
Intel Corporation  
31  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 15. Stop Grant/Sleep/Deep Sleep Timing  
Stop  
Grant  
Stop  
Normal  
Grant  
Normal  
Running  
Sleep  
Tv  
Deep Sleep  
Sleep  
BCLK  
Running  
STPCLK#  
Ty  
CPU bus  
SLP#  
stpgnt  
Tw  
Tx  
T
t
Tu  
Tz  
Compatibility  
Signals  
Changing  
Changing  
Frozen  
V0011-00  
NOTES:  
T
=
=
=
=
=
=
=
T50 (Stop Grant Acknowledge Bus Cycle Completion to SLP# Assertion Delay)  
T51 (Setup Time to Input Signal Hold Requirement)  
T52 (SLP# assertion to clock shut off delay)  
T47 (Deep Sleep PLL lock latency)  
T54 (SLP# Hold Time)  
T55 (STPCLK# Hold Time)  
t
T
u
T
v
T
w
T
x
T
y
T
z
T56 (Input Signal Hold Time)  
32  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 16. Intel SpeedStep Technology/Deep Sleep Timing  
BCLK on  
(out of spec)  
BCLK on  
(in spec)  
BCLK on  
BCLK off  
1.25V  
Tx  
1.25V  
BCLK  
GHI#  
VIL25  
Ts  
Ty  
Th  
V0036-00  
NOTES:  
T
=
=
=
=
T57 (GHI# Setup Time from BCLK Restart)  
T58 (GHI# Hold Time from BCLK Restart)  
T59 (GHI# Sample Delay)  
s
T
h
T
x
T
T60 (BCLK Settling Time)  
y
Intel Corporation  
33  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
4.0  
System Signal Simulations  
Many scenarios have been simulated to generate a set of GTL+ processor system bus layout  
guidelines, which are available in the Mobile Coppermine Processor GTL+ System Bus Layout  
Guideline. Systems must be simulated using the IBIS model to determine if they are compliant  
with this specification.  
4.1  
System Bus Clock (BCLK) and PICCLK AC Signal Quality  
Specifications  
Table 24 and Figure 17 show the signal quality for the system bus clock (BCLK) signal, and  
Table 25 and Figure 17 show the signal quality for the APIC bus clock (PICCLK) signal at the  
processor. BCLK and PICCLK are 2.5V clocks.  
Table 24. BCLK Signal Quality Specifications  
Symbol Parameter  
Min  
Max Unit Figure  
Notes  
Note 1  
Note 1  
V1  
V2  
V3  
VIL,BCLK  
0.7  
V
V
V
Figure 17  
Figure 17  
Figure 17  
VIH,BCLK  
1.7  
VIN Absolute Voltage Range  
-0.7  
3.5  
Undershoot/Overshoot,  
Note 2  
V4  
BCLK Rising Edge Ringback  
BCLK Falling Edge Ringback  
1.7  
V
V
Figure 17  
Figure 17  
Absolute Value, Note 3  
Absolute Value, Note 3  
V5  
0.7  
NOTES:  
1.  
On the rising edge of BCLK, there must be a minimum overshoot to 2.0V. The clock must rise monotonically between  
VIL,BCLK and 2.0V, and fall monotonically between VIH,BCLK and V  
.
IL, BCLK  
2.  
These specifications apply only when BCLK is running, see Table 13 for the DC specifications for when BCLK is stopped.  
BCLK may not be above VIH,BCLK,max or below V for more than 50% of the clock cycle.  
IL,BCLK,min  
3.  
The rising and falling edge ringback voltage specified is the minimum (rising) or maximum (falling) absolute voltage the  
BCLK signal can go to after passing the VIH,BCLK (rising) or VIL,BCLK (falling) voltage limits.  
Table 25. PICCLK Signal Quality Specifications  
Symbol Parameter  
Min Max Unit Figure  
Notes  
V1  
V2  
V3  
V4  
VIL25  
0.7  
V
V
V
V
V
Figure 17 Note 1  
VIH25  
1.7  
-0.7 3.5  
Figure 17 Note 1  
VIN Absolute Voltage Range  
Figure 17 Undershoot,Overshoot, Note 2  
Figure 17 Absolute Value, Note 3  
Figure 17 Absolute Value, Note 3  
PICCLK Rising Edge Ringback 2.0  
PICCLK Falling Edge Ringback  
V5  
0.5  
NOTES:  
1.  
2.  
The clock must rise/fall monotonically between V  
IL25  
and V  
.
IH25  
These specifications apply only when PICCLK is running, see Table 13 for the DC specifications for when PICCLK is  
stopped. PICCLK may not be above V or below V for more than 50% of the clock cycle.  
IH25,max IL25,min  
3.  
The rising and falling edge ringback voltage specified is the minimum (rising) or maximum (falling) absolute voltage the  
PICCLK signal can go to after passing the V (rising) or V (falling) voltage limits.  
IH25 IL25  
34  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 17. BCLK/PICCLK Generic Clock Waveform  
V3max  
V4  
V2  
V1  
V5  
V3min  
V0012-01  
4.2  
GTL+ AC Signal Quality Specifications  
Table 26, Figure 18, and Figure 19 illustrate the GTL+ signal quality specifications for the mobile  
Pentium III processor. Refer to the Pentium® II Processor Developer’s Manual for the GTL+  
buffer specification. The mobile Pentium III processor maximum overshoot and undershoot  
specifications for a given duration of time are specified in Table 27. Contact your Intel Field Sales  
representative for a copy of the OVERSHOOT_CHECKER tool. The OVERSHOOT_CHECKER  
determines if a specific waveform meets the overshoot/undershoot specification. Figure 20 shows  
the overshoot/undershoot waveform. The tolerances listed in Table 27 are conservative. Signals  
that exceed these tolerances may still meet the processor overshoot/undershoot tolerance if the  
OVERSHOOT_CHECKER tool says that they pass.  
Intel Corporation  
35  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 26. GTL+ Signal Group Ringback Specification  
Symbol  
Parameter  
Min  
Unit  
Figure  
Notes  
Overshoot  
100  
mV  
Figure 18, Notes 1, 2  
Figure 19  
a
Minimum Time at High  
0.5  
ns  
Figure 18, Notes 1, 2  
Figure 19  
t
Amplitude of Ringback  
Final Settling Voltage  
-200  
200  
N/A  
mV  
mV  
ns  
Notes 1, 2, 3  
Notes 1, 2  
Notes 1, 2  
Figure 18,  
Figure 19  
r
f
Figure 18,  
Figure 19  
Duration of Sequential Ringback  
Figure 18,  
Figure 19  
d
NOTES:  
1.  
Specified for the edge rate of 0.3 – 0.8 V/ns. See Figure 18 for the generic waveform.  
2.  
All values determined by design/characterization.  
3.  
Ringback below V  
REF,max  
+ 200 mV is not authorized during low to high transitions. Ringback above V – 200 mV  
REF,min  
is not authorized during high to low transitions.  
Figure 18. Low to High, GTL+ Receiver Ringback Tolerance  
t
VIH,BCLK  
a
VREF,max+0.2V  
f
VREF,max  
r
VREF,min-0.2V  
d
VIL,BCLK  
Vstart  
Clock  
V0014-01  
Time  
36  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 19. High to Low, GTL+ Receiver Ringback Tolerance  
VIH,BCLK  
Vstart  
VREF,max+0.2V  
d
r
VREF,min  
f
VREF,min-0.2V  
a
VIL,BCLK  
t
Clock  
V0014-02  
Time  
Table 27. GTL+ Signal Group Overshoot/Undershoot Tolerance at the Processor Core1, 4, 5  
3
Overshoot Amplitude 2  
Undershoot Amplitude  
Allowed Pulse Duration  
2.0V  
1.9V  
1.8V  
-0.35V  
-0.25V  
-0.15V  
0.35 ns  
1.2 ns  
4.3 ns  
NOTES:  
1.  
Under no circumstances should the GTL+ signal voltage ever exceed 2.0V maximum with respect to ground or -2.0V  
minimum with respect to V (i.e., V - 2.0V) under operating conditions.  
CCT CCT  
2.  
3.  
Ringbacks below V  
overshoot.  
cannot be subtracted from overshoots. Lesser undershoot does not allocate longer or larger  
CCT  
Ringbacks above ground cannot be subtracted from undershoots. Lesser overshoot does not allocate longer or larger  
undershoot.  
4.  
5.  
System designers are encouraged to follow Intel provided GTL+ layout guidelines.  
All values are specified by design characterization and are not tested.  
Intel Corporation  
37  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 20. Maximum Acceptable Overshoot/Undershoot Waveform  
Time dependant Overshoot  
2.0V Max  
1.9V  
1.8V  
VCCT  
c
a
b
a
b
c
Vss  
-.15V  
-.25V  
-.35V Min  
Time dependant  
NOTE: The total overshoot/undershoot budget for one clock cycle is fully consumed by the aa, bb,, or cc waveforms.  
4.3  
Non-GTL+ Signal Quality Specifications  
Signals driven to the mobile Pentium III processor should meet signal quality specifications to  
ensure that the processor reads data properly and that incoming signals do not affect the long-term  
reliability of the processor. Unlike previous generations of mobile processors, the mobile Pentium  
III processor uses GTL+ buffers for non-GTL+ signals. The input and output paths of the buffers  
have been slowed down to match the requirements for the non-GTL+ signals. The signal quality  
specifications for the non-GTL+ signals are identical to the GTL+ signal quality specifications  
except that they are relative to V  
rather than V  
transitions  
CMOSREF  
REF  
OVERSHOOT_CHECKER can be used to verify non-GTL+ signal compliance with the signal  
overshoot and undershoot tolerance. The tolerances listed in Table 28 are conservative. Signals  
that exceed these tolerances may still meet the processor overshoot and undershoot tolerance if the  
OVERSHOOT_CHECKER tool says that they pass.  
38  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 28. Non-GTL+ Signal Group Overshoot/Undershoot Tolerance at the Processor Core 1, 4, 5  
3
Overshoot Amplitude 2  
Undershoot Amplitude  
Allowed Pulse Duration  
2.1V  
2.0V  
1.9V  
-0.45V  
-0.35V  
-0.25V  
-0.15V  
0.45 ns  
1.5 ns  
5.0 ns  
17 ns  
1.8V  
NOTES:  
1.  
Under no circumstances should the non-GTL+ signal voltage ever exceed 2.1V maximum with respect to ground or -2.1V  
minimum with respect to V (i.e., V - 2.1V) under operating conditions.  
CCT CCT  
2.  
3.  
Ring-backs below V cannot be subtracted from overshoots. Lesser undershoot does not allocate longer or larger  
CCT  
overshoot.  
Ring-backs above ground cannot be subtracted from undershoots. Lesser overshoot does not allocate longer or larger  
undershoot.  
4.  
5.  
System designers are encouraged to follow Intel provided non-GTL+ layout guidelines.  
All values are specified by design characterization, and are not tested.  
4.3.1  
PWRGOOD Signal Quality Specifications  
The processor requires PWRGOOD to be a clean indication that clocks and the power supplies  
(VCC, VCCT, etc.) are stable and within their specifications. Clean implies that the signal will  
remain below VIL25 and without errors from the time that the power supplies are turned on, until  
they come within specification. The signal will then transition monotonically to a high (2.5V)  
state. PWRGOOD may not ringback below 2.0V after rising above VIH25  
.
Intel Corporation  
39  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
5.0  
Mechanical Specifications  
5.1  
Surface-mount BGA2 Package Dimensions  
The mobile Pentium III processor is packaged in a PBGA-B495 package (also known as BGA2)  
with the back of the processor die exposed on top. Unlike previous mobile processors with  
exposed die, the back of the mobile Pentium III processor die may be polished and very smooth.  
The mechanical specifications for the surface-mount package are provided in Table 29. Figure 21  
shows the top and side views of the surface-mount package, and Figure 22 shows the bottom view  
of the surface-mount package. The substrate may only be contacted within the shaded region  
between the keep-out outline and the edge of the substrate. The mobile Pentium III processor will  
have one or two label marks. These label marks will be located along the long edge of the  
substrate outside of the keep-out region and they will not encroach upon the 7-mm by 7-mm  
squares at the substrate corners. Please note that in order to implement VID on the BGA2 package,  
some VID[4:0] balls may be depopulated.  
Table 29. Surface-mount BGA2 Package Specifications  
Symbol  
Parameter  
Min  
Max  
Unit  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
each  
mm  
mm  
kPa  
A
Overall Height, as delivered  
Substrate Height, as delivered  
Die Height  
2.29  
2.79  
A1  
A2  
b
1.50 REF  
0.854 REF  
0.78 REF  
27.05  
Ball Diameter  
D
D1  
E
Package Width  
27.35  
31.15  
Die Width  
9.22 REF  
30.85  
Package Length  
e
Ball Pitch  
1.27  
E
1
Die Length  
11.18 REF  
495  
N
Ball Count  
S1  
S2  
PDIE  
W
Outer Ball Center to Short Edge of Substrate  
Outer Ball Center to Long Edge of Substrate  
Allowable Pressure on the Die for Thermal Solution  
Package Weight  
0.895 REF  
0.900 REF  
689  
4.5 REF  
grams  
40  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 21. Surface-mount BGA2 Package - Top and Side View  
NOTE: All dimensions are in millimeters. Dimensions in figure are for reference only, Table 29 for specifications.  
Intel Corporation  
41  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 22. Surface-mount BGA2 Package - Bottom View  
NOTE: All dimensions are in millimeters. Dimensions in figure are for reference only, see Table 29 for specifications  
42  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
5.2  
Socketable Micro-PGA2 Package Dimensions  
The mobile Pentium III processor is also packaged in a PPGA-B495 package (also known as  
Micro-PGA2) with the back of the processor die exposed on top. Unlike previous mobile  
processors with exposed die, the back of the mobile Pentium III processor die may be polished and  
very smooth. The mechanical specifications for the socketable package are provided in Table 30.  
Figure 23 shows the top and side views of the socketable package, and Figure 24 shows the  
bottom view of the socketable package. The substrate may only be contacted within the region  
between the keep-out outline and the edge of the substrate. The mobile Pentium III processor will  
have one or two label marks. These label marks will be located along the long edge of the  
substrate outside of the keep-out region, and they will not encroach upon the 7-mm by 7-mm  
squares at the substrate corners. Unlike the BGA2 package, VID implementation does not require  
VID pins to be depopulated on the Micro-PGA2 package.  
Intel Corporation  
43  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 30. Socketable Micro-PGA2 Package Specification  
Symbol  
Parameter  
Overall Height, top of die to seating plane of interposer  
Pin Length  
Min  
Max  
Unit  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
mm  
A
3.13  
3.73  
A1  
A2  
B
1.25 REF  
Die Height  
0.854 REF  
0.30 REF  
Pin Diameter  
D2  
D
Package Width  
28.27 REF  
Die Substrate Width  
Die Width  
27.05  
27.35  
D1  
9.22 REF  
E
Package Length  
34.21 REF  
2
E
Die Substrate Length  
Die Length  
30.85  
31.15  
E
11.18 REF  
1.27  
1
e
Pin Pitch  
Pin Tip Radial True Position  
£ 0.127 REF  
495  
N
Pin Count  
each  
mm  
S1  
S2  
PDIE  
W
Outer Pin Center to Short Edge of Substrate  
Outer Pin Center to Long Edge of Substrate  
Allowable Pressure on the Die for Thermal Solution  
Package Weight  
2.144 REF  
1.206 REF  
mm  
689  
kPa  
6.2 REF  
grams  
44  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 23. Socketable Micro-PGA2 Package - Top and Side View  
NOTE: All dimensions are in millimeters. Dimensions in figure are for reference only, see Table 30 for  
specifications.  
Intel Corporation  
45  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 24. Socketable Micro-PGA2 Package - Bottom View  
NOTE: All dimensions are in millimeters. Dimensions in figure are for reference only, see Table 30 for  
specifications.  
5.3  
Signal Listings  
Figure 25 is a top-side view of the ball or pin map of the mobile Pentium III processor with the  
voltage balls/pins called out. Table 31 lists the signals in ball/pin number order. Table 32 lists the  
signals in signal name order.  
46  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 25. Pin/Ball Map - Top View  
1
2
3
4
5
6
7
8
9
10 11  
12 13 14  
15 16  
17 18 19  
20 21  
A
B
VSS  
A29# A32# A33# RESET# VSS  
VSS  
D5#  
NC  
VSS  
VSS  
D14#  
D10#  
NC  
NC  
NC  
D23# D21# D30#  
VSS  
VSS  
A30#  
A28# A34#  
VSS  
VSS  
VSS  
VSS  
D3#  
NC  
D4#  
VSS  
VSS  
VSS  
D6#  
D0#  
D7#  
VSS  
D1#  
D11#  
D8#  
D9#  
D18#  
NC  
VSS  
VSS  
D16#  
D13# D22#  
VSS  
D27# D29#  
D31#  
D33#  
D38#  
C
A27# A31#  
A26# A20# A35# BREQ0# D2#  
D20#  
VSS  
NC  
D24#  
D25#  
D26#  
VSS  
D35#  
D
A22#  
VSS  
A21# A25# A24#  
VSS  
VSS  
D17# D15#  
NC  
D28# D32# D37#  
E
A19# A23#  
A16# A18#  
VSS  
VSS  
A15# VREF BERR# VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
D12#  
VSS  
VSS  
VSS  
D19#  
VSS  
NC  
VREF VREF D34#  
VSS  
D43#  
VSS  
D45#  
D42#  
D51#  
F
A17# VREF  
VSS  
VSS  
VSS  
VSS VREF D40# D36#  
G
H
A13#  
NC  
VSS TESTP  
NC  
VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT  
NC  
VSS  
D49#  
A14#  
A10#  
A9#  
VSS  
A5#  
VSS  
NC  
TESTP  
VSS  
NC  
NC  
VCCT  
VCCT  
VCCT  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC VCCT D39# D44#  
VSS  
D46#  
VSS  
D47#  
D59#  
D53#  
J
A11#  
A4#  
VSS VCCT D41#  
VSS  
K
A12#  
A8#  
VCC VCCT D52# D57#  
L
A7#  
PLL1  
A3#  
A6#  
NC  
VSS VCCT  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS VCCT D48#  
VSS  
D60#  
VSS  
D55#  
D56#  
M
N
DEFER# PLL2 BCLK  
NC  
VCCT  
VCC VCCT D54# D61#  
VSS  
VSS  
VSS  
VSS TESTLO2 VCCT  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS VCCT  
VSS  
VSS  
VSS  
VSS  
P
VCCT CLKREF NC  
NC  
VSS  
VSS  
VCCT  
VCCT  
VCC VCCT D50#  
VSS DEP6# DEP5#  
R
LOCK# GHI#  
VSS  
VSS  
VSS VCCT D63# D56#  
VSS DEP3#  
D58# DEP1#  
T
DRDY# REQ0# VSS BNR# VSS  
VCCT  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC VCCT  
VSS  
VSS  
U
RS0# TRDY# DEFER# BPRI# VREF VCCT  
VSS VCCT D62# DEP7# VSS DEP2#  
V
HIT# REQ2# VSS REQ1# PWRGOOD VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT DEP4# VSS DEP0# BINIT#  
W
Y
RS2#  
RP# REQ3# VSS REQ4# VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT VCCT  
VSS BPM1# PRDY# BPM0#  
RSP# AP1#  
VSS HITM#TESTLO1 VCCT VCCT VCCT VSS  
CMOS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS VREF VREF VSS PICD1 BP3#  
AA  
AB  
AC  
AD  
THERM EDGE  
DA  
AERR# RS1# DBSY# VSS  
NC  
VCCT VCCT VCCT  
INIT#  
TCK BSEL0 VSS TRST#  
TESTP PICCLK NC  
VSS  
BP2#  
REF  
CTRLP  
THERM  
DC  
AP0# ADS#  
VSS  
NC  
VID4  
VID3  
VSS  
VSS  
VSS  
VCCT VCCT VCCT VSS  
SMI#  
VSS  
SLP# VSS  
VSS BSEL1  
VSS  
NC  
INTR RSVD PREQ# PICD0  
VSS  
VSS  
VSS  
VID0  
VCCT VCCT VCCT FLUSH# VSS STPCLK# FERR# IGNNE# VSS  
TDO  
NC  
VSS  
VSS  
NMI  
NC  
VSS  
CMOS RTT  
REF IMPEDP  
VID1 VID2  
VCCT VCCT VCCT IERR# A20M# NC  
NC  
TDI  
TMS  
VSS TESTHI  
TESTP VSS  
V0024-03  
VCC  
VCCT VSS  
Analog  
Other  
Decoupling  
Note: In order to implement VID on the BGA2 package, some VID[4:0] balls may be depopulated. However, on  
the Micro-PGA2 package, VID[4:0] pins are not depopulated.  
Intel Corporation  
47  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 31. Signal Listing in Order by Pin/Ball Number  
No.  
A2  
Signal Name  
VSS  
No.  
C3  
Signal Name  
A26#  
A20#  
A35#  
BREQ0#  
D2#  
No.  
E2  
Signal Name  
A23#  
VSS  
No.  
G1  
Signal Name  
A13#  
NC  
A3  
A29#  
A32#  
A33#  
RESET#  
VSS  
C4  
E3  
G2  
A4  
C5  
E4  
A15#  
VREF  
BERR#  
VSS  
G3  
VSS  
A5  
C6  
E5  
G4  
TESTP  
NC  
A6  
C7  
E6  
G5  
A7  
C8  
D3#  
E7  
G6  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
NC  
A8  
VSS  
C9  
VSS  
D6#  
E8  
VSS  
G7  
A9  
D5#  
C10  
C11  
C12  
C13  
C14  
C15  
C16  
C17  
C18  
C19  
C20  
C21  
D1  
E9  
VSS  
G8  
A12  
A13  
A14  
A15  
A16  
A17  
A18  
A19  
A20  
A21  
B1  
VSS  
VSS  
D8#  
E10  
E11  
E12  
E13  
E14  
E15  
E16  
E17  
E18  
E19  
E20  
E21  
F1  
VSS  
G9  
D14#  
D10#  
NC  
VSS  
G10  
G11  
G12  
G13  
G14  
G15  
G16  
G17  
G18  
G19  
G20  
G21  
H1  
D20#  
NC  
D12#  
VSS  
NC  
VSS  
VSS  
D24#  
D26#  
VSS  
D35#  
D33#  
A22#  
VSS  
A21#  
A25#  
A24#  
VSS  
VSS  
NC  
D19#  
NC  
NC  
D23#  
D21#  
D30#  
VSS  
VREF  
VREF  
D34#  
VSS  
VSS  
D43#  
D45#  
A16#  
A18#  
VSS  
VSS  
B2  
A30#  
A28#  
A34#  
VSS  
D49#  
D51#  
A14#  
VSS  
B3  
D2  
B4  
D3  
F2  
B5  
D4  
F3  
H2  
B6  
VSS  
D5  
F4  
A17#  
VREF  
VSS  
H3  
NC  
B7  
VSS  
D6  
F5  
H4  
TESTP  
NC  
B8  
VSS  
D7  
F6  
H5  
B9  
D4#  
D8  
F7  
VSS  
H6  
VCCT  
VSS  
B10  
B11  
B12  
B13  
B14  
B15  
B16  
B17  
B18  
B19  
B20  
B21  
C1  
VSS  
D9  
VSS  
D0#  
F8  
VSS  
H7  
D7#  
D10  
D11  
D12  
D13  
D14  
D15  
D16  
D17  
D18  
D19  
D20  
D21  
E1  
F9  
VSS  
H8  
VCC  
D11#  
D9#  
D1#  
F10  
F11  
F12  
F13  
F14  
F15  
F16  
F17  
F18  
F19  
F20  
F21  
VSS  
H9  
VSS  
D17#  
D15#  
NC  
VSS  
H10  
H11  
H12  
H13  
H14  
H15  
H16  
H17  
H18  
H19  
H20  
VCC  
D18#  
VSS  
VSS  
VSS  
VSS  
VCC  
D13#  
D22#  
VSS  
D16#  
NC  
VSS  
VSS  
VSS  
VCC  
D25#  
D28#  
D32#  
D37#  
D38#  
A19#  
VSS  
VSS  
D27#  
D29#  
D31#  
A27#  
A31#  
VREF  
D40#  
D36#  
VSS  
VCC  
VCCT  
D39#  
D44#  
VSS  
C2  
D42#  
48  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
No.  
H21  
J1  
Signal Name  
D47#  
A10#  
A5#  
No.  
K20  
K21  
L1  
Signal Name  
VSS  
D53#  
A7#  
No.  
M20  
N2  
Signal Name  
VSS  
No.  
R1  
Signal Name  
LOCK#  
RSVD  
VSS  
VSS  
R2  
J2  
N3  
VSS  
R3  
J3  
A11#  
VSS  
NC  
L2  
PLL1  
A3#  
N4  
VSS  
R4  
VSS  
J4  
L3  
N5  
TESTLO2  
VCCT  
VCC  
R5  
VSS  
J5  
L4  
A6#  
N6  
R6  
VCCT  
VCC  
J6  
VCCT  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCCT  
D41#  
VSS  
D46#  
D59#  
A9#  
L5  
VSS  
VCCT  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCCT  
D48#  
VSS  
D60#  
D55#  
PLL2  
BCLK  
NC  
N7  
R7  
J7  
L6  
N8  
VSS  
R8  
VSS  
J8  
L7  
N9  
VCC  
R9  
VCC  
J9  
L8  
N10  
N11  
N12  
N13  
N14  
N15  
N16  
N17  
N18  
N19  
N20  
P1  
VSS  
R10  
R11  
R12  
R13  
R14  
R15  
R16  
R17  
R18  
R19  
R20  
R21  
T1  
VSS  
J10  
J11  
J12  
J13  
J14  
J15  
J16  
J17  
J18  
J19  
J20  
J21  
K1  
L9  
VCC  
VCC  
L10  
L11  
L12  
L13  
L14  
L15  
L16  
L17  
L18  
L19  
L20  
L21  
M2  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCCT  
VSS  
VCCT  
D63#  
D56#  
VSS  
VSS  
VSS  
VCCT  
CLKREF  
NC  
DEP3#  
DRDY#  
REQ0#  
VSS  
P2  
P3  
T2  
K2  
VSS  
A4#  
P4  
NC  
T3  
K3  
M3  
P5  
VSS  
T4  
BNR#  
VSS  
K4  
A12#  
A8#  
M4  
P6  
VCCT  
VSS  
T5  
K5  
M5  
NC  
P7  
T6  
VCCT  
VSS  
K6  
VCCT  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VCCT  
D52#  
D57#  
M6  
VCCT  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VSS  
VCC  
VCCT  
D54#  
D61#  
P8  
VCC  
T7  
K7  
M7  
P9  
VSS  
T8  
VCC  
K8  
M8  
P10  
P11  
P12  
P13  
P14  
P15  
P16  
P17  
P18  
P19  
P20  
P21  
VCC  
T9  
VSS  
K9  
M9  
VSS  
T10  
T11  
T12  
T13  
T14  
T15  
T16  
T17  
T18  
T19  
T20  
VCC  
K10  
K11  
K12  
K13  
K14  
K15  
K16  
K17  
K18  
K19  
M10  
M11  
M12  
M13  
M14  
M15  
M16  
M17  
M18  
M19  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VSS  
VCC  
VCC  
VSS  
VCCT  
D50#  
VSS  
VCC  
VCCT  
VSS  
DEP6#  
DEP5#  
VSS  
D58#  
Intel Corporation  
49  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
No.  
T21  
U1  
Signal Name  
DEP1#  
RS0#  
TRDY#  
DEFER#  
BPRI#  
VREF  
VCCT  
VCC  
No.  
V20  
V21  
W1  
Signal Name  
DEP0#  
BINIT#  
RS2#  
RP#  
No.  
Signal Name  
VSS  
No.  
Signal Name  
Y19  
AB18 INTR/LINT0  
AB19 RSVD  
AB20 PREQ#  
AB21 PICD0  
Y20  
PICD1  
BP3#  
U2  
Y21  
U3  
W2  
AA1  
AERR#  
RS1#  
U4  
W3  
REQ3#  
VSS  
AA2  
AC1  
AC2  
AC3  
AC4  
AC5  
AC6  
AC7  
AC8  
AC9  
VSS  
U5  
W4  
AA3  
DBSY#  
VSS  
VSS  
U6  
W5  
REQ4#  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VSS  
AA4  
NC  
U7  
W6  
AA5  
NC  
VID3  
U8  
VSS  
W7  
AA6  
VCCT  
VCCT  
VCCT  
CMOSREF  
INIT#  
VSS  
U9  
VCC  
W8  
AA7  
VCCT  
VCCT  
VCCT  
FLUSH#  
U10  
U11  
U12  
U13  
U14  
U15  
U16  
U17  
U18  
U19  
U20  
U21  
V1  
VSS  
W9  
AA8  
VCC  
W10  
W11  
W12  
W13  
W14  
W15  
W16  
W17  
W18  
W19  
W20  
W21  
Y1  
AA9  
VSS  
AA10  
AA11  
AA12  
AA13  
AA14  
AA15  
AA16  
AA17  
AA18  
AA19  
AA20  
AA21  
AB1  
VCC  
TCK  
AC10 VSS  
AC11 STPCLK#  
AC12 FERR#  
AC13 IGNNE#  
AC14 VSS  
AC15 TDO  
AC16 VSS  
AC17 NC  
VSS  
BSEL0  
VSS  
VCC  
VSS  
TRST#  
THERMDA  
EDGECTRLP  
TESTP  
PICCLK  
NC  
VCCT  
D62#  
DEP7#  
VSS  
BPM1#  
PRDY#  
BPM0#  
RSP#  
AP1#  
VSS  
DEP2#  
HIT#  
AC18 VSS  
AC19 NMI/LINT1  
AC20 NC  
VSS  
V2  
REQ2#  
VSS  
BP2#  
V3  
Y2  
AP0#  
AC21 VSS  
V4  
REQ1#  
PWRGOOD  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
VCCT  
DEP4#  
VSS  
Y3  
AB2  
ADS#  
VSS  
AD1  
AD2  
AD3  
AD4  
AD5  
AD6  
AD7  
AD8  
AD9  
VSS  
V5  
Y4  
HITM#  
TESTLO1  
VCCT  
VCCT  
VCCT  
VSS  
AB3  
VID0  
V6  
Y5  
AB4  
VID4  
VID1  
V7  
Y6  
AB5  
VSS  
VID2  
V8  
Y7  
AB6  
VCCT  
VCCT  
VCCT  
VSS  
VSS  
V9  
Y8  
AB7  
VCCT  
VCCT  
VCCT  
IERR#  
V10  
V11  
V12  
V13  
V14  
V15  
V16  
V17  
V18  
V19  
Y9  
AB8  
Y10  
Y11  
Y12  
Y13  
Y14  
Y15  
Y16  
Y17  
Y18  
VSS  
AB9  
VSS  
AB10  
AB11  
AB12  
AB13  
AB14  
AB15  
AB16  
AB17  
SMI#  
VSS  
VSS  
AD10 A20M#  
AD13 TDI  
VSS  
SLP#  
VSS  
VSS  
AD14 TMS  
AD15 NC  
VSS  
VSS  
VSS  
BSEL1  
THERMDC  
VSS  
AD16 VSS  
VREF  
VREF  
AD17 TESTHI  
AD18 CMOSREF  
50  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
No.  
Signal Name  
No.  
Signal Name  
No.  
Signal Name  
No.  
Signal Name  
AD19  
RTTIMPEDP  
AD20 TESTP  
AD21  
VSS  
Intel Corporation  
51  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 32. Signal Listing in Order by Signal Name  
No.  
L3  
K3  
J2  
Signal Name  
A3#  
Signal Buffer Type  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
1.5V CMOS Input  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
2.5V Clock Input  
GTL+ I/O  
GTL+ I/O  
No.  
Signal Name  
Signal Buffer Type  
GTL+ I/O  
T4  
BNR#  
A4#  
AA21 BP2#  
GTL+ I/O  
A5#  
Y21  
W21  
W19  
U4  
BP3#  
GTL+ I/O  
L4  
L1  
K5  
K1  
J1  
A6#  
BPM0#  
BPM1#  
BPRI#  
GTL+ I/O  
A7#  
GTL+ I/O  
A8#  
GTL+ Input  
GTL+ I/O  
A9#  
C6  
BREQ0#  
A10#  
A11#  
A12#  
A13#  
A14#  
A15#  
A16#  
A17#  
A18#  
A19#  
A20#  
A21#  
A22#  
A23#  
A24#  
A25#  
A26#  
A27#  
A28#  
A29#  
A30#  
A31#  
A32#  
A33#  
A34#  
A35#  
AA12 BSEL0  
AB15 BSEL1  
1.5V CMOS Input  
1.5V CMOS Input  
BCLK Reference Voltage  
CMOS Reference Voltage  
CMOS Reference Voltage  
GTL+ I/O  
J3  
K4  
G1  
H1  
E4  
F1  
F4  
F2  
E1  
C4  
D3  
D1  
E2  
D5  
D4  
C3  
C1  
B3  
A3  
B2  
C2  
A4  
A5  
B4  
C5  
P2  
CLKREF  
AA9  
CMOSREF  
AD18 CMOSREF  
D10  
D11  
C7  
D0#  
D1#  
GTL+ I/O  
D2#  
GTL+ I/O  
C8  
D3#  
GTL+ I/O  
B9  
D4#  
GTL+ I/O  
A9  
D5#  
GTL+ I/O  
C10  
B11  
C12  
B13  
A14  
B12  
E12  
B16  
A13  
D13  
D15  
D12  
B14  
E14  
C13  
A19  
B17  
A18  
C17  
D17  
C18  
B19  
D18  
D6#  
GTL+ I/O  
D7#  
GTL+ I/O  
D8#  
GTL+ I/O  
D9#  
GTL+ I/O  
D10#  
D11#  
D12#  
D13#  
D14#  
D15#  
D16#  
D17#  
D18#  
D19#  
D20#  
D21#  
D22#  
D23#  
D24#  
D25#  
D26#  
D27#  
D28#  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
AD10 A20M#  
GTL+ I/O  
AB2  
AA1  
AB1  
Y2  
ADS#  
AERR#  
AP0#  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
AP1#  
GTL+ I/O  
M3  
BCLK  
BERR#  
BINIT#  
GTL+ I/O  
E6  
GTL+ I/O  
V21  
GTL+ I/O  
52  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
No.  
B20  
A20  
B21  
D19  
C21  
E18  
C20  
F19  
D20  
D21  
H18  
F18  
J18  
F21  
E20  
H19  
E21  
J20  
H21  
L18  
G20  
P18  
G21  
K18  
K21  
M18  
L21  
R19  
K19  
T20  
J21  
L20  
M19  
U18  
R18  
AA3  
U3  
Signal Name  
D29#  
D30#  
D31#  
D32#  
D33#  
D34#  
D35#  
D36#  
D37#  
D38#  
D39#  
D40#  
D41#  
D42#  
D43#  
D44#  
D45#  
D46#  
D47#  
D48#  
D49#  
D50#  
D51#  
D52#  
D53#  
D54#  
D55#  
D56#  
D57#  
D58#  
D59#  
D60#  
D61#  
D62#  
D63#  
DBSY#  
DEFER#  
DEP0#  
DEP1#  
DEP2#  
DEP3#  
Signal Buffer Type  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ Input  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
No.  
V18  
P21  
P20  
U19  
T1  
Signal Name  
DEP4#  
Signal Buffer Type  
GTL+ I/O  
DEP5#  
GTL+ I/O  
DEP6#  
GTL+ I/O  
DEP7#  
GTL+ I/O  
DRDY#  
GTL+ I/O  
AA16 EDGECTRLP  
AC12 FERR#  
GTL+ Control  
1.5V Open Drain Output  
1.5V CMOS Input  
GTL+ I/O  
AC9  
V1  
FLUSH#  
HIT#  
Y4  
HITM#  
IERR#  
GTL+ I/O  
AD9  
1.5V Open Drain Output  
1.5V CMOS Input  
1.5V CMOS Input  
1.5V CMOS Input  
GTL+ I/O  
AC13 IGNNE#  
AA10 INIT#  
AB18 INTR/LINT0  
R1  
LOCK#  
AC19 NMI/LINT1  
AA18 PICCLK  
AB21 PICD0  
1.5V CMOS Input  
2.5V APIC Clock Input  
1.5V Open Drain I/O  
1.5V Open Drain I/O  
PLL Analog Voltage  
PLL Analog Voltage  
GTL+ Output  
Y20  
L2  
PICD1  
PLL1  
M2  
PLL2  
W20  
PRDY#  
AB20 PREQ#  
1.5V CMOS Input  
2.5V CMOS Input  
GTL+ I/O  
V5  
T2  
PWRGOOD  
REQ0#  
REQ1#  
REQ2#  
REQ3#  
REQ4#  
RS0#  
V4  
V2  
W3  
W5  
U1  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ I/O  
GTL+ Input  
A6  
W2  
AA2  
W1  
Y1  
R2  
RESET#  
RP#  
GTL+ Input  
GTL+ I/O  
RS1#  
GTL+ Input  
RS2#  
GTL+ Input  
RSP#  
GTL+ Input  
RSVD  
Reserved  
AB19 RSVD  
AD19 RTTIMPEDP  
AB12 SLP#  
Reserved  
V20  
T21  
U21  
R21  
GTL+ Pull-up Control  
1.5V CMOS Input  
1.5V CMOS Input  
1.5V CMOS Input  
AB10 SMI#  
AC11 STPCLK#  
Intel Corporation  
53  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
No.  
Signal Name  
Signal Buffer Type  
No.  
Signal Name  
Signal Buffer Type  
AA11 TCK  
AD13 TDI  
1.5V JTAG Clock Input AA14 TRST#  
JTAG Input  
JTAG Input  
JTAG Output  
Test Input  
Test Input  
Test Input  
AD2  
AD3  
AD4  
AC4  
AB4  
VID0  
Voltage Identification  
Voltage Identification  
Voltage Identification  
Voltage Identification  
Voltage Identification  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
GTL+ Reference Voltage  
AC15 TDO  
AD17 TESTHI  
VID1  
VID2  
Y5  
N5  
TESTLO1  
TESTLO2  
VID3  
VID4  
AD20 TESTP  
H4 TESTP  
AA17 TESTP  
G4 TESTP  
Core Voltage Test Point E5  
Core Voltage Test Point E16  
Core Voltage Test Point E17  
Core Voltage Test Point F5  
Thermal Diode Anode F17  
Thermal Diode Cathode U5  
VREF  
VREF  
VREF  
VREF  
VREF  
VREF  
VREF  
VREF  
AA15 THERMDA  
AB16 THERMDC  
AD14 TMS  
JTAG Input  
GTL+ Input  
Y17  
Y18  
U2  
TRDY#  
Table 33. Voltage and No-Connect Pin/Ball Locations  
Signal  
Name  
Pin/Ball Numbers  
NC  
A15, A16, A17, C14, D8, D14, D16, E15, G2, G5, G18, H3, H5, J5, M4, M5, P3, P4, AA5, AA19,  
AC3, AC17, AC20, AD15  
VCC  
H8, H10, H12, H14, H16, J7, J9, J11, J13, J15, K8, K10, K12, K14, K16, L7, L9, L11, L13, L15,  
M8, M10, M12, M14, M16, N7, N9, N11, N13, N15, P8, P10, P12, P14, P16, R7, R9, R11, R13,  
R15, T8, T10, T12, T14, T16, U7, U9, U11, U13, U15  
VCCT  
VSS  
G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, G17, H6, H17, J6, J17, K6, K17, L6, L17,  
M6, M17, N6, N17, P1, P6, P17, R6, R17, T6, T17, U6, U17, V6, V7, V8, V9, V10, V11, V12, V13,  
V14, V15, V16, V17, W6, W7, W8, W9, W10, W11, W12, W13, W14, W15, W16, W17, Y6, Y7, Y8,  
AA6, AA7, AA8, AB6, AB7, AB8, AC6, AC7, AC8, AD6, AD7, AD8  
A2, A7, A8, A12, A21, B1, B5, B6, B7, B8, B10, B15, B18, C9, C11, C15, C16, C19, D2, D6, D7,  
D9, E3, E7, E8, E9, E10, E11, E13, E19, F3, F6, F7, F8, F9, F10, F11, F12, F13, F14, F15, F16,  
F20, G3, G19, H2, H7, H9, H11, H13, H15, H20, J4, J8, J10, J12, J14, J16, J19, K2, K7, K9, K11,  
K13, K15, K20, L5, L8, L10, L12, L14, L16, L19, M7, M9, M11, M13, M15, M20, N2, N3, N4, N8,  
N10, N12, N14, N16, N18, N19, N20, P5, P7, P9, P11, P13, P15, P19, R3, R4, R5, R8, R10, R12,  
R14, R16, R20, T3, T5, T7, T9, T11, T13, T15, T18, T19, U8, U10, U12, U14, U16, U20, V3, V19,  
W4, W18, Y3, Y9, Y10, Y11, Y12, Y13, Y14, Y15, Y16, Y19, AA4, AA13, AA20, AB3, AB5, AB9,  
AB11, AB13, AB14, AB17, AC1, AC2, AC5, AC10, AC14, AC16, AC18, AC21, AD1, AD5, AD16,  
AD21  
54  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
6.0  
Thermal Specifications  
This chapter provides needed data for designing a thermal solution. However, for the more  
complete thermal measuring guideline, refer to the Intel® Mobile Pentium® III Processor Thermal  
Specification Guidelines. The mobile Pentium® III processor is either a surface mount PBGA-  
B495 package or a socketable PPGA-B495 package with the back of the processor die exposed  
and has a specified operational junction temperature (TJ) limit.  
In order to achieve proper cooling of the processor, a thermal solution (e.g., heat spreader, heat  
pipe, or other heat transfer system) must make firm contact to the exposed processor die. The  
processor die must be clean before the thermal solution is attached or the processor may be  
damaged.  
Table 34 and Table 35 provide the maximum Thermal Design Power (TDPMAX) dissipation and  
the minimum and maximum TJ temperatures for the mobile Pentium III processor. A thermal  
solution should be designed to ensure the junction temperature never exceeds these specifications.  
If no closed loop thermal failsafe mechanism (processor throttling) is present to maintain TJ within  
specification then the thermal solution should be designed to cool the TDPMAX condition. If a  
thermal failsafe mechanism is present then thermal solution could possibly be designed to a  
typical Thermal Design Power (TDPTYP). TDPTYP is a thermal design power recommendation  
based on the power dissipation of the processor while executing publicly available software under  
normal operating conditions at nominal voltages. TDPTYP power is lower than TDPMAX. Contact  
your Intel Field Sales Representative for further information.  
Table 34. Power Specificationsfor Mobile Pentium III Processor with Intel SpeedStep Technology  
Typ1  
Symbol  
TDP  
Parameter  
Min  
Max  
Unit  
Notes  
at 100°C, Notes 2, 3  
Thermal Design Power  
at 500 MHz & 1.35V  
at 600 MHz & 1.60V  
at 650 MHz & 1.60V  
12.2  
20.0  
21.5  
W
W
W
PSGNT  
Stop Grant and Auto Halt power  
at 50°C, Note 3  
at 50°C, Note 3  
at 35°C, Note 3  
Note 4  
at 1.35V  
at 1.60V  
1.1  
1.7  
W
W
PQS  
Quick Start and Sleep power  
at 1.35V  
0.8  
1.3  
W
W
at 1.60V  
PDSLP  
Deep Sleep power  
at 1.35V  
at 1.60V  
0.3  
0.5  
W
W
TJ  
Junction Temperature  
0
100  
°C  
NOTES:  
1.  
2.  
3.  
4.  
TDPTYP is a recommendation based on the power dissipation of the processor while executing publicly available software  
under normal operating conditions at nominal voltages. Contact your Intel Field Sales Representative for further  
information.  
TDPMAX is a specification of the total power dissipation of the processor while executing a worst-case instruction mix under  
normal operating conditions at nominal voltages. It includes the power dissipated by all of the components within the  
processor. Not 100% tested. Specified by design/characterization.  
Not 100% tested or guaranteed. The power specifications are composed of the current of the processor on the various  
voltage planes. These currents are measured and specified at high temperature in Table 9. These power specifications  
are determined by characterization of the processor currents at higher temperatures.  
TJ is measured with the on-die thermal diode. The recommended method for accurately measuring TJ is detailed in the  
Intel® Mobile Pentium® III Processor Thermal Specification Guidelines.  
Intel Corporation  
55  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 35. Power Specifications for Fixed Frequency Mobile Pentium III Processor  
Typ1  
Symbol  
TDP  
Parameter  
Min  
Max  
Unit  
Notes  
Thermal Design Power  
at 400 MHz & 1.35V  
at 450 MHz & 1.6V  
at 500 MHz & 1.35V  
at 500 MHz & 1.6V  
at 100°C, Notes 2, 3  
10.1  
15.5  
12.2  
16.8  
W
W
W
W
PSGNT  
PQS  
Stop Grant and Auto Halt power  
Quick Start and Sleep power  
Deep Sleep power  
1.1  
650  
150  
100  
W
at 50°C, Notes 3,4  
mW at 50°C, Notes 3,4  
mW at 35°C, Notes 3,4  
PDSLP  
TJ  
Junction Temperature  
0
°C  
Note 5  
NOTES:  
1.  
2.  
3.  
TDPTYP is a recommendation based on the power dissipation of the processor while executing publicly available software  
under normal operating conditions at nominal voltages. Contact your Intel Field Sales Representative for further  
information.  
TDPMAX is a specification of the total power dissipation of the processor while executing a worst-case instruction mix under  
normal operating conditions at nominal voltages. It includes the power dissipated by all of the components within the  
processor. Not 100% tested. Specified by design/characterization.  
Not 100% tested or guaranteed. The power specifications are composed of the current of the processor on the various  
voltage planes. These currents are measured and specified at high temperature Table 10. These power specifications are  
determined by characterization of the processor currents at higher temperatures.  
4.  
5.  
For PSGNT, PQS, and PDSLP specifications in the case of 500MHz at 1.35V fixed frequency processor, refer to these values  
listed in Table 34 at 1.35V.  
TJ is measured with the on-die thermal diode. The recommended method for accurately measuring TJ is detailed in the  
Intel® Mobile Pentium® III Processor Thermal Specification Guidelines.  
6.1  
Thermal Diode  
The mobile PentiumIII processor has an on-die thermal diode that can be used to monitor the die  
temperature(TJ). A thermal sensor located on the motherboard, or a stand-alone measurement kit,  
may monitor the die temperature of the processor for thermal management or instrumentation  
purposes. Table 36 and Table 37 provide the diode interface and specifications.  
Note: The reading of the thermal sensor connected to the thermal diode will not necessarily reflect  
the temperature of the hottest location on the die. This is due to inaccuracies in the thermal sensor,  
on-die temperature gradients between the location of the thermal diode and the hottest location on  
the die, and time based variations in the die temperature measurement. Time based variations can  
occur when the sampling rate of the thermal diode (by the thermal sensor) is slower than the rate at  
which the TJ temperature can change. Refer to the Intel® Mobile Pentium® III Processor Thermal  
Specification Guideline for more details .  
56  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 36. Thermal Diode Interface  
Signal Name  
THERMDA  
THERMDC  
Pin/Ball Number  
AA15  
Signal Description  
Thermal diode anode  
Thermal diode cathode  
AB16  
Table 37. Thermal Diode Specifications  
Symbol  
IFW  
Parameter  
Min  
Typ  
Max  
500  
1.0057 1.0080 1.0125  
Unit Notes  
Forward Bias Current  
Diode Ideality Factor  
5
Note 1  
mA  
n
Notes 2, 3, 4  
NOTES:  
1.  
Intel does not support or recommend operation of the thermal diode under reverse bias. Intel does not support or  
recommend operation of the thermal diode when the processor power supplies are not within their specified tolerance  
range.  
2.  
3.  
4.  
Characterized at 100°C.  
Not 100% tested. Specified by design/characterization.  
The ideality factor, n, represents the deviation from ideal diode behavior as exemplified by the diode equation: Where Is  
saturation current, q = electronic charge, Vd = voltage across the diode, k = Boltzmann Constant, and T = absolute  
=
temperature (Kelvin).  
æ qV  
ö
÷
ø
D
nkT  
IFW  
I
S
e
1
-
= ×  
ç
è
Intel Corporation  
57  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
7.0  
Processor Initialization and Configuration  
7.1  
Description  
The mobile Pentium III processor has some configuration options that are determined by hardware  
and some that are determined by software. The processor samples its hardware configuration at  
reset on the active-to-inactive transition of RESET#. Most of the configuration options for the  
mobile Pentium III processor are identical to those of the Pentium II processor. The Pentium® II  
Processor Developer’s Manual describes these configuration options. New configuration options  
for the mobile Pentium III processor are described in the remainder of this section.  
7.1.1  
Quick Start Enable  
The processor normally enters the Stop Grant state when the STPCLK# signal is asserted but it  
will enter the Quick Start state instead if A15# is sampled active on the RESET# signal’s active-  
to-inactive transition. The Quick Start state supports snoops from the bus priority device like the  
Stop Grant state but it does not support symmetric master snoops nor is the latching of interrupts  
supported. A “1” in bit position 5 of the Power-on Configuration register indicates that the Quick  
Start state has been enabled.  
7.1.2  
7.1.3  
System Bus Frequency  
The current generation mobile Pentium III processor will only function with a system bus  
frequency of 100 MHz. Bit positions 18 to 19 of the Power-on Configuration register indicates at  
which speed a processor will run. A “00” in bits [19:18] indicates a 66-MHz bus frequency, a “10”  
indicates a 100-MHz bus frequency, and a “01” indicates a 133-MHz bus frequency.  
APIC Enable  
If the PICD0 signal is sampled low on the active-to-inactive transition of the RESET# signal then  
the PICCLK signal can be tied to V . Otherwise the PICD[1:0] signals must be pulled up to VCCT  
SS  
and PICCLK must be supplied. Driving PICD0 low at reset also has the effect of clearing the  
APIC Global Enable bit in the APIC Base MSR. This bit is normally set when the processor is  
reset, but when it is cleared the APIC is completely disabled until the next reset.  
7.2  
Clock Frequencies and Ratios  
The mobile Pentium III processor uses a clock design in which the bus clock is multiplied by a  
ratio to produce the processor’s internal (or “core”) clock. Unlike some of the mobile Pentium II  
processors, the ratio used is programmed into the processor during manufacturing. The bus ratio  
programmed into the processor is visible in bit positions 22 to 25 of the Power-on Configuration  
register. Table 15 shows the 4-bit codes in the Power-on Configuration register and their  
corresponding bus ratios.  
58  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
8.0  
Processor Interface  
8.1  
Alphabetical Signal Reference  
A[35:3]# (I/O - GTL+)  
The A[35:3]# (Address) signals define a 236-byte physical memory address space. When ADS# is  
active, these signals transmit the address of a transaction; when ADS# is inactive, these signals  
transmit transaction information. These signals must be connected to the appropriate pins/balls of  
both agents on the system bus. The A[35:24]# signals are protected with the AP1# parity signal,  
and the A[23:3]# signals are protected with the AP0# parity signal.  
On the active-to-inactive transition of RESET#, each processor bus agent samples A[35:3]#  
signals to determine its power-on configuration. See Section 4 of this document and the Pentium®  
II Processor Developer’s Manual for details.  
A20M# (I - 1.5V Tolerant)  
If the A20M# (Address-20 Mask) input signal is asserted, the processor masks physical address bit  
20 (A20#) before looking up a line in any internal cache and before driving a read/write  
transaction on the bus. Asserting A20M# emulates the 8086 processor's address wrap-around at  
the 1-Mbyte boundary. Assertion of A20M# is only supported in Real mode.  
ADS# (I/O - GTL+)  
The ADS# (Address Strobe) signal is asserted to indicate the validity of a transaction address on  
the A[35:3]# signals. Both bus agents observe the ADS# activation to begin parity checking,  
protocol checking, address decode, internal snoop or deferred reply ID match operations  
associated with the new transaction. This signal must be connected to the appropriate pins/balls on  
both agents on the system bus.  
AERR# (I/O - GTL+)  
The AERR# (Address Parity Error) signal is observed and driven by both system bus agents, and  
if used, must be connected to the appropriate pins/balls of both agents on the system bus. AERR#  
observation is optionally enabled during power-on configuration; if enabled, a valid assertion of  
AERR# aborts the current transaction.  
If AERR# observation is disabled during power-on configuration, a central agent may handle an  
assertion of AERR# as appropriate to the error handling architecture of the system.  
AP[1:0]# (I/O - GTL+)  
The AP[1:0]# (Address Parity) signals are driven by the request initiator along with ADS#,  
A[35:3]#, REQ[4:0]# and RP#. AP1# covers A[35:24]#. AP0# covers A[23:3]#. A correct parity  
signal is high if an even number of covered signals are low and low if an odd number of covered  
signals are low. This allows parity to be high when all the covered signals are high. AP[1:0]#  
should be connected to the appropriate pins/balls on both agents on the system bus.  
Intel Corporation  
59  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
BCLK (I - 2.5V Tolerant)  
The BCLK (Bus Clock) signal determines the system bus frequency. Both system bus agents must  
receive this signal to drive their outputs and latch their inputs on the BCLK rising edge. All  
external timing parameters are specified with respect to the BCLK signal.  
BERR# (I/O - GTL+)  
The BERR# (Bus Error) signal is asserted to indicate an unrecoverable error without a bus  
protocol violation. It may be driven by either system bus agent and must be connected to the  
appropriate pins/balls of both agents, if used. However, the mobile Pentium III processors do not  
observe assertions of the BERR# signal.  
BERR# assertion conditions are defined by the system configuration. Configuration options  
enable the BERR# driver as follows:  
·
·
·
·
Enabled or disabled  
Asserted optionally for internal errors along with IERR#  
Asserted optionally by the request initiator of a bus transaction after it observes an error  
Asserted by any bus agent when it observes an error in a bus transaction  
BINIT# (I/O - GTL+)  
The BINIT# (Bus Initialization) signal may be observed and driven by both system bus agents and  
must be connected to the appropriate pins/balls of both agents, if used. If the BINIT# driver is  
enabled during the power-on configuration, BINIT# is asserted to signal any bus condition that  
prevents reliable future information.  
If BINIT# is enabled during power-on configuration, and BINIT# is sampled asserted, all bus state  
machines are reset and any data which was in transit is lost. All agents reset their rotating ID for  
bus arbitration to the state after reset, and internal count information is lost. The L1 and L2 caches  
are not affected.  
If BINIT# is disabled during power-on configuration, a central agent may handle an assertion of  
BINIT# as appropriate to the Machine Check Architecture (MCA) of the system.  
BNR# (I/O - GTL+)  
The BNR# (Block Next Request) signal is used to assert a bus stall by any bus agent that is unable  
to accept new bus transactions. During a bus stall, the current bus owner cannot issue any new  
transactions.  
Since multiple agents may need to request a bus stall simultaneously, BNR# is a wired-OR signal  
that must be connected to the appropriate pins/balls of both agents on the system bus. In order to  
avoid wire-OR glitches associated with simultaneous edge transitions driven by multiple drivers,  
BNR# is activated on specific clock edges and sampled on specific clock edges.  
60  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
BP[3:2]# (I/O - GTL+)  
The BP[3:2]# (Breakpoint) signals are the System Support group Breakpoint signals. They are  
outputs from the processor that indicate the status of breakpoints.  
BPM[1:0]# (I/O - GTL+)  
The BPM[1:0]# (Breakpoint Monitor) signals are breakpoint and performance monitor signals.  
They are outputs from the processor that indicate the status of breakpoints and programmable  
counters used for monitoring processor performance.  
BPRI# (I - GTL+)  
The BPRI# (Bus Priority Request) signal is used to arbitrate for ownership of the system bus. It  
must be connected to the appropriate pins/balls on both agents on the system bus. Observing  
BPRI# active (as asserted by the priority agent) causes the processor to stop issuing new requests,  
unless such requests are part of an ongoing locked operation. The priority agent keeps BPRI#  
asserted until all of its requests are completed and then releases the bus by deasserting BPRI#.  
BREQ0# (I/O - GTL+)  
The BREQ0# (Bus Request) signal is a processor Arbitration Bus signal. The processor indicates  
that it wants ownership of the system bus by asserting the BREQ0# signal.  
During power-up configuration, the central agent must assert the BREQ0# bus signal. The  
processor samples BREQ0# on the active-to-inactive transition of RESET#.  
BSEL[1:0] (I - 1.5V Tolerant)  
The BSEL[1:0] (Select Processor System Bus Speed) signal is used to configure the processor for  
the system bus frequency. Table 38 shows the encoding scheme for BSEL[1:0]. The only  
supported system bus frequency for the mobile Pentium III processor is 100 MHz. If another  
frequency is used or if the BSEL[1:0] signals are not driven with “01” then the processor is not  
guaranteed to function properly.  
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Table 38. BSEL[1:0] Encoding  
BSEL[1:0]  
System Bus Frequency  
00  
01  
10  
11  
66 MHz  
100 MHz  
Reserved  
133 MHz  
CLKREF (Analog)  
The CLKREF (System Bus Clock Reference) signal provides a reference voltage to define the trip  
point for the BCLK signal. This signal should be connected to a resistor divider to generate 1.25V  
from the 2.5-V supply.  
CMOSREF (Analog)  
The CMOSREF (CMOS Reference Voltage) signal provides a DC level reference voltage for the  
CMOS input buffers. A voltage divider should be used to divide a stable voltage plane (e.g., 2.5V  
or 3.3V). This signal must be provided with a DC voltage that meets the VCMOSREF specification  
from Table 13.  
D[63:0]# (I/O - GTL+)  
The D[63:0]# (Data) signals are the data signals. These signals provide a 64-bit data path between  
both system bus agents, and must be connected to the appropriate pins/balls on both agents. The  
data driver asserts DRDY# to indicate a valid data transfer.  
DBSY# (I/O - GTL+)  
The DBSY# (Data Bus Busy) signal is asserted by the agent responsible for driving data on the  
system bus to indicate that the data bus is in use. The data bus is released after DBSY# is  
deasserted. This signal must be connected to the appropriate pins/balls on both agents on the  
system bus.  
DEFER# (I - GTL+)  
The DEFER# (Defer) signal is asserted by an agent to indicate that the transaction cannot be  
guaranteed in-order completion. Assertion of DEFER# is normally the responsibility of the  
addressed memory agent or I/O agent. This signal must be connected to the appropriate pins/balls  
on both agents on the system bus.  
DEP[7:0]# (I/O - GTL+)  
The DEP[7:0]# (Data Bus ECC Protection) signals provide optional ECC protection for the data  
bus. They are driven by the agent responsible for driving D[63:0]#, and must be connected to the  
appropriate pins/balls on both agents on the system bus if they are used. During power-on  
configuration, DEP[7:0]# signals can be enabled for ECC checking or disabled for no checking.  
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DRDY# (I/O - GTL+)  
The DRDY# (Data Ready) signal is asserted by the data driver on each data transfer, indicating  
valid data on the data bus. In a multi-cycle data transfer, DRDY# can be deasserted to insert idle  
clocks. This signal must be connected to the appropriate pins/balls on both agents on the system  
bus.  
EDGCTRLP (Analog)  
The EDGCTRLP (Edge Rate Control) signal is used to configure the edge rate of the GTL+ output  
buffers. Connect the signal to VSS with a 110-W, 1% resistor.  
FERR# (O - 1.5V Tolerant Open-drain)  
The FERR# (Floating-point Error) signal is asserted when the processor detects an unmasked  
floating-point error. FERR# is similar to the ERROR# signal on the Intel 387 coprocessor, and it  
is included for compatibility with systems using DOS-type floating-point error reporting.  
FLUSH# (I - 1.5V Tolerant)  
When the FLUSH# (Flush) input signal is asserted, the processor writes back all internal cache  
lines in the Modified state and invalidates all internal cache lines. At the completion of a flush  
operation, the processor issues a Flush Acknowledge transaction. The processor stops caching any  
new data while the FLUSH# signal remains asserted.  
On the active-to-inactive transition of RESET#, each processor bus agent samples FLUSH# to  
determine its power-on configuration.  
GHI# (I - 1.5V Tolerant)  
The GHI# signal controls which operating mode bus ratio is selected in a mobile Pentium III  
processor featuring Intel SpeedStep technology. On the processor featuring Intel SpeedStep  
technology, this signal is latched when BCLK restarts in Deep Sleep state and determines which  
of two bus ratios is selected for operation. This signal is ignored when the processor is not in the  
Deep Sleep state. This signal is a “Don’t Care” on processors that do not feature Intel SpeedStep  
technology. This signal has an on-die pull-up to VCCT and should be driven with an Open-drain  
driver with no external pull-up.  
HIT# (I/O - GTL+), HITM# (I/O - GTL+)  
The HIT# (Snoop Hit) and HITM# (Hit Modified) signals convey transaction snoop operation  
results, and must be connected to the appropriate pins/balls on both agents on the system bus.  
Either bus agent can assert both HIT# and HITM# together to indicate that it requires a snoop  
stall, which can be continued by reasserting HIT# and HITM# together.  
IERR# (O - 1.5V Tolerant Open-drain)  
The IERR# (Internal Error) signal is asserted by the processor as the result of an internal error.  
Assertion of IERR# is usually accompanied by a SHUTDOWN transaction on the system bus.  
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This transaction may optionally be converted to an external error signal (e.g., NMI) by system  
logic. The processor will keep IERR# asserted until it is handled in software or with the assertion  
of RESET#, BINIT, or INIT#.  
IGNNE# (I - 1.5V Tolerant)  
The IGNNE# (Ignore Numeric Error) signal is asserted to force the processor to ignore a numeric  
error and continue to execute non-control floating-point instructions. If IGNNE# is deasserted, the  
processor freezes on a non-control floating-point instruction if a previous instruction caused an  
error. IGNNE# has no affect when the NE bit in control register 0 (CR0) is set.  
INIT# (I - 1.5V Tolerant)  
The INIT# (Initialization) signal is asserted to reset integer registers inside the processor without  
affecting the internal (L1 or L2) caches or the floating-point registers. The processor begins  
execution at the power-on reset vector configured during power-on configuration. The processor  
continues to handle snoop requests during INIT# assertion. INIT# is an asynchronous input.  
If INIT# is sampled active on RESET#'s active-to-inactive transition, then the processor executes  
its built-in self test (BIST).  
INTR (I - 1.5V Tolerant)  
The INTR (Interrupt) signal indicates that an external interrupt has been generated. INTR becomes  
the LINT0 signal when the APIC is enabled. The interrupt is maskable using the IF bit in the  
EFLAGS register. If the IF bit is set, the processor vectors to the interrupt handler after  
completing the current instruction execution. Upon recognizing the interrupt request, the processor  
issues a single Interrupt Acknowledge (INTA) bus transaction. INTR must remain active until the  
INTA bus transaction to guarantee its recognition.  
LINT[1:0] (I - 1.5V Tolerant)  
The LINT[1:0] (Local APIC Interrupt) signals must be connected to the appropriate pins/balls of  
all APIC bus agents, including the processor and the system logic or I/O APIC component. When  
APIC is disabled, the LINT0 signal becomes INTR, a maskable interrupt request signal, and  
LINT1 becomes NMI, a non-maskable interrupt. INTR and NMI are backward compatible with  
the same signals for the Pentium processor. Both signals are asynchronous inputs.  
Both of these signals must be software configured by programming the APIC register space to be  
used either as NMI/INTR or LINT[1:0] in the BIOS. If the APIC is enabled at reset, then  
LINT[1:0] is the default configuration.  
LOCK# (I/O - GTL+)  
The LOCK# (Lock) signal indicates to the system that a sequence of transactions must occur  
atomically. This signal must be connected to the appropriate pins/balls on both agents on the  
system bus. For a locked sequence of transactions, LOCK# is asserted from the beginning of the  
first transaction through the end of the last transaction.  
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When the priority agent asserts BPRI# to arbitrate for bus ownership, it waits until it observes  
LOCK# deasserted. This enables the processor to retain bus ownership throughout the bus locked  
operation and guarantee the atomicity of lock.  
NMI (I - 1.5V Tolerant)  
The NMI (Non-Maskable Interrupt) indicates that an external interrupt has been generated. NMI  
becomes the LINT1 signal when the APIC is disabled. Asserting NMI causes an interrupt with an  
internally supplied vector value of 2. An external interrupt-acknowledge transaction is not  
generated. If NMI is asserted during the execution of an NMI service routine, it remains pending  
and is recognized after the IRET is executed by the NMI service routine. At most, one assertion of  
NMI is held pending. NMI is rising edge sensitive.  
PICCLK (I - 2.5V Tolerant)  
The PICCLK (APIC Clock) signal is an input clock to the processor and system logic or I/O APIC  
that is required for operation of the processor, system logic, and I/O APIC components on the  
APIC bus.  
PICD[1:0] (I/O - 1.5V Tolerant Open-drain)  
The PICD[1:0] (APIC Data) signals are used for bi-directional serial message passing on the APIC  
bus. They must be connected to the appropriate pins/balls of all APIC bus agents, including the  
processor and the system logic or I/O APIC components. If the PICD0 signal is sampled low on  
the active-to-inactive transition of the RESET# signal, then the APIC is hardware disabled.  
PLL1, PLL2 (Analog)  
The PLL1 and PLL2 signals provide isolated analog decoupling is required for the internal PLL.  
See Section 3.2.2 for a description of the analog decoupling circuit.  
PRDY# (O - GTL+)  
The PRDY# (Probe Ready) signal is a processor output used by debug tools to determine  
processor debug readiness.  
PREQ# (I - 1.5V Tolerant)  
The PREQ# (Probe Request) signal is used by debug tools to request debug operation of the  
processor.  
PWRGOOD (I - 2.5V Tolerant)  
PWRGOOD (Power Good) is a 2.5-V tolerant input. The processor requires this signal to be a  
clean indication that clocks and the power supplies (VCC, VCCT, etc.) are stable and within their  
specifications. Clean implies that the signal will remain low, (capable of sinking leakage current)  
and without glitches, from the time that the power supplies are turned on, until they come within  
specification. The signal will then transition monotonically to a high (2.5V) state. Figure 26  
illustrates the relationship of PWRGOOD to other system signals. PWRGOOD can be driven  
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inactive at any time, but clocks and power must again be stable before the rising edge of  
PWRGOOD. It must also meet the minimum pulse width specified in Table 17 (Section 3.7) and  
be followed by a 1 ms RESET# pulse.  
Figure 26. PWRGOOD Relationship at Power On  
BCLK  
V
,
,
CC  
V
CCT  
V
REF  
V
PWRGOOD  
RESET#  
I
H
25
,
m
i
n  
1 msec  
D0026-01  
The PWRGOOD signal, which must be supplied to the processor, is used to protect internal  
circuits against voltage sequencing issues. The PWRGOOD signal should be driven high  
throughout boundary scan operation.  
REQ[4:0]# (I/O - GTL+)  
The REQ[4:0]# (Request Command) signals must be connected to the appropriate pins/balls on  
both agents on the system bus. They are asserted by the current bus owner when it drives A[35:3]#  
to define the currently active transaction type.  
RESET# (I - GTL+)  
Asserting the RESET# signal resets the processor to a known state and invalidates the L1 and L2  
caches without writing back Modified (M state) lines. For a power-on type reset, RESET# must  
stay active for at least 1 msec after VCC and BCLK have reached their proper DC and AC  
specifications and after PWRGOOD has been asserted. When observing active RESET#, all bus  
agents will deassert their outputs within two clocks. RESET# is the only GTL+ signal that does  
not have on-die GTL+ termination. A 56.2W 1% terminating resistor connected to V  
is  
CCT  
required.  
A number of bus signals are sampled at the active-to-inactive transition of RESET# for the power-  
on configuration. The configuration options are described in Section 4 and in the Pentium® II  
Processor Developer’s Manual.  
Unless its outputs are tri-stated during power-on configuration, after an active-to-inactive  
transition of RESET#, the processor optionally executes its built-in self-test (BIST) and begins  
program execution at reset-vector 000FFFF0H or FFFFFFF0H. RESET# must be connected to the  
appropriate pins/balls on both agents on the system bus.  
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RP# (I/O - GTL+)  
The RP# (Request Parity) signal is driven by the request initiator and provides parity protection on  
ADS# and REQ[4:0]#. RP# should be connected to the appropriate pins/balls on both agents on  
the system bus.  
A correct parity signal is high if an even number of covered signals are low and low if an odd  
number of covered signals are low. This definition allows parity to be high when all covered  
signals are high.  
RS[2:0]# (I - GTL+)  
The RS[2:0]# (Response Status) signals are driven by the response agent (the agent responsible for  
completion of the current transaction) and must be connected to the appropriate pins/balls on both  
agents on the system bus.  
RSP# (I - GTL+)  
The RSP# (Response Parity) signal is driven by the response agent (the agent responsible for  
completion of the current transaction) during assertion of RS[2:0]#. RSP# provides parity  
protection for RS[2:0]#. RSP# should be connected to the appropriate pins/balls on both agents on  
the system bus.  
A correct parity signal is high if an even number of covered signals are low, and it is low if an odd  
number of covered signals are low. During Idle state of RS[2:0]# (RS[2:0]#=000), RSP# is also  
high since it is not driven by any agent guaranteeing correct parity.  
RSVD (TBD)  
The RSVD (Reserved) signal is currently unimplemented but is reserved for future use. Leave this  
signal unconnected. Intel recommends that a routing channel for this signal be allocated.  
RTTIMPEDP (Analog)  
The RTTIMPEDP (RTT Impedance/PMOS) signal is used to configure the on-die GTL+  
termination. Connect the RTTIMPEDP signal to V with a 56.2-W, 1% resistor.  
SS  
SLP# (I - 1.5V Tolerant)  
The SLP# (Sleep) signal, when asserted in the Stop Grant state, causes the processor to enter the  
Sleep state. During the Sleep state, the processor stops providing internal clock signals to all units,  
leaving only the Phase-Locked Loop (PLL) still running. The processor will not recognize snoop  
and interrupts in the Sleep state. The processor will only recognize changes in the SLP#,  
STPCLK# and RESET# signals while in the Sleep state. If SLP# is deasserted, the processor exits  
Sleep state and returns to the Stop Grant state in which it restarts its internal clock to the bus and  
APIC processor units.  
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SMI# (I - 1.5V Tolerant)  
The SMI# (System Management Interrupt) is asserted asynchronously by system logic. On  
accepting a System Management Interrupt, the processor saves the current state and enters System  
Management Mode (SMM). An SMI Acknowledge transaction is issued, and the processor begins  
program execution from the SMM handler.  
STPCLK# (I - 1.5V Tolerant)  
The STPCLK# (Stop Clock) signal, when asserted, causes the processor to enter a low-power Stop  
Grant state. The processor issues a Stop Grant Acknowledge special transaction and stops  
providing internal clock signals to all units except the bus and APIC units. The processor  
continues to snoop bus transactions and service interrupts while in the Stop Grant state. When  
STPCLK# is deasserted, the processor restarts its internal clock to all units and resumes execution.  
The assertion of STPCLK# has no affect on the bus clock.  
TCK (I - 1.5V Tolerant)  
The TCK (Test Clock) signal provides the clock input for the test bus (also known as the test  
access port).  
TDI (I - 1.5V Tolerant)  
The TDI (Test Data In) signal transfers serial test data to the processor. TDI provides the serial  
input needed for JTAG support.  
TDO (O - 1.5V Tolerant Open-drain)  
The TDO (Test Data Out) signal transfers serial test data from the processor. TDO provides the  
serial output needed for JTAG support.  
TESTHI (I - 1.5V Tolerant)  
The TESTHI (Test input High) is used during processor test and needs to be pulled high during  
normal operation.  
TESTLO[2:1] (I - 1.5V Tolerant)  
The TESTLO[2:1] (Test input Low) signals are used during processor test and needs to be pulled  
to ground during normal operation.  
TESTP (Analog)  
The TESTP (Test Point) signals are connected to Vcc and V at opposite ends of the die. These  
ss  
signals can be used to monitor the Vcc level on the die. Route the TESTP signals to test points or  
leave them unconnected. Do not short the TESTP signals together.  
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THERMDA, THERMDC (Analog)  
The THERMDA (Thermal Diode Anode) and THERMDC (Thermal Diode Cathode) signals  
connect to the anode and cathode of the on-die thermal diode.  
TMS (I - 1.5V Tolerant)  
The TMS (Test Mode Select) signal is a JTAG support signal used by debug tools.  
TRDY# (I - GTL+)  
The TRDY# (Target Ready) signal is asserted by the target to indicate that the target is ready to  
receive write or implicit write-back data transfer. TRDY# must be connected to the appropriate  
pins/balls on both agents on the system bus.  
TRST# (I - 1.5V Tolerant)  
The TRST# (Test Reset) signal resets the Test Access Port (TAP) logic. The mobile Pentium III  
processors do not self-reset during power on; therefore, it is necessary to drive this signal low  
during power-on reset.  
VID[4:0] (O – Open-drain)  
The VID[4:0] (Voltage ID) pins/balls can be used to support automatic selection of power supply  
voltages. These pins/balls are not signals, they are either an open circuit or a short to VSS on the  
processor substrate. The combination of opens and shorts encodes the voltage required by the  
processor. External to pull-ups are required to sense the encoded VID. For processors that have  
Intel SpeedStep technology enabled, VID[4:0] encode the voltage required in the battery-  
optimized mode. VID[4:0] are needed to cleanly support voltage specification changes on mobile  
Pentium III processors. The voltage encoded by VID[4:0] is defined in Table 39. A “1” in this  
table refers to an open pin/ball and a “0” refers to a short to VSS. The power supply must provide  
the requested voltage or disable itself.  
Please note that in order to implement VID on the BGA2 package, some VID[4:0] balls may be  
depopulated. For the BGA2 package, a “1” in Table 39 implies that the corresponding VID ball is  
depopulated, while a “0” implies that the corresponding VID ball is not depopulated.  
But on the Micro-PGA2 package, VID[4:0] pins are not depopulated.  
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Table 39. Voltage Identification Encoding  
VID[4:0]  
00000  
00001  
00010  
00011  
00100  
00101  
00110  
00111  
VCC  
VID[4:0]  
01000  
01001  
01010  
01011  
01100  
01101  
01110  
01111  
VCC  
VID[4:0]  
10000  
10001  
10010  
10011  
10100  
10101  
10110  
10111  
VCC  
VID[4:0]  
11000  
11001  
11010  
11011  
11100  
11101  
11110  
11111  
VCC  
2.00  
1.95  
1.90  
1.85  
1.80  
1.75  
1.70  
1.65  
1.60  
1.55  
1.50  
1.45  
1.40  
1.35  
1.30  
No CPU  
1.275  
1.250  
1.225  
1.200  
1.175  
1.150  
1.125  
1.100  
1.075  
1.050  
1.025  
1.000  
0.975  
0.950  
0.925  
No CPU  
VREF (Analog)  
The VREF (GTL+ Reference Voltage) signal provides a DC level reference voltage for the GTL+  
input buffers. A voltage divider should be used to divide VCCT by 2/3. Resistor values of 1.00 kW  
and 2.00 kW are recommended. Decouple the VREF signal with three 0.1-mF high frequency  
capacitors close to the processor.  
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8.2  
Signal Summaries  
Table 40 through Table 43 list the attributes of the processor input, output, and I/O signals.  
Table 40. Input Signals  
Name  
A20M#  
BCLK  
Active Level  
Low  
Clock  
Signal Group  
CMOS  
Qualified  
Always  
Asynch  
High  
System Bus  
System Bus  
System Bus  
CMOS  
Always  
BPRI#  
DEFER#  
FLUSH#  
GHI#  
Low  
BCLK  
Always  
Low  
BCLK  
Always  
Low  
Asynch  
Asynch  
Asynch  
Asynch  
Asynch  
Always  
Low  
CMOS  
Deep Sleep state  
Always  
IGNNE#  
INIT#  
Low  
CMOS  
Low  
System Bus  
CMOS  
Always  
INTR  
High  
APIC disabled  
mode  
LINT[1:0]  
NMI  
High  
High  
Asynch  
Asynch  
APIC  
APIC enabled  
mode  
CMOS  
APIC disabled  
mode  
PICCLK  
PREQ#  
PWRGOOD  
RESET#  
RS[2:0]#  
RSP#  
High  
Low  
High  
Low  
Low  
Low  
High  
Low  
Low  
Low  
High  
APIC  
Always  
Asynch  
Asynch  
BCLK  
BCLK  
BCLK  
Asynch  
Asynch  
Asynch  
Asynch  
Implementation  
Implementation  
System Bus  
System Bus  
System Bus  
Implementation  
Implementation  
CMOS  
Always  
Always  
Always  
Always  
Always  
BSEL[1:0]  
SLP#  
Always  
Stop Grant state  
Always  
SMI#  
STPCLK#  
TCK  
Implementation  
JTAG  
Always  
TDI  
TCK  
JTAG  
TMS  
TCK  
JTAG  
TRDY#  
TRST#  
Low  
Low  
BCLK  
Asynch  
System Bus  
JTAG  
Response phase  
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Table 41. Output Signals  
Name  
FERR#  
IERR#  
PRDY#  
TDO  
Active Level  
Low  
Clock  
Asynch  
Asynch  
BCLK  
Signal Group  
Open-drain  
Open-drain  
Implementation  
JTAG  
Low  
Low  
High  
TCK  
VID[4:0]  
High  
Asynch  
Implementation  
Table 42. Input/Output Signals (Single Driver)  
Name  
Active Level  
Low  
Clock  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
Signal Group  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
Qualified  
A[35:3]#  
ADS#  
ADS#, ADS#+1  
Low  
Always  
AP[1:0]#  
BREQ0#  
BP[3:2]#  
BPM[1:0]#  
D[63:0]#  
DBSY#  
DEP[7:0]#  
DRDY#  
LOCK#  
Low  
ADS#, ADS#+1  
Always  
Low  
Low  
Always  
Low  
Always  
Low  
DRDY#  
Low  
Always  
Low  
DRDY#  
Low  
Always  
Low  
Always  
REQ[4:0]#  
RP#  
Low  
ADS#, ADS#+1  
ADS#, ADS#+1  
Low  
Table 43. Input/Output Signals (Multiple Driver)  
Name  
AERR#  
BERR#  
BINIT#  
BNR#  
Active Level  
Low  
Clock  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
BCLK  
PICCLK  
Signal Group  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
System Bus  
APIC  
Qualified  
ADS#+3  
Always  
Always  
Always  
Always  
Always  
Always  
Low  
Low  
Low  
HIT#  
Low  
HITM#  
PICD[1:0]  
Low  
High  
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Appendix A: PLL RLC Filter Specification  
A.1  
Introduction  
All mobile Pentium II and mobile Pentium III processors have internal PLL clock generators,  
which are analog in nature and require quiet power supplies for minimum jitter. Jitter is  
detrimental to a system; it degrades external I/O timings as well as internal core timings (i.e.  
maximum frequency). In mobile Pentium II processors, the power supply filter was specified as  
an external LC network. This remains largely the same for the mobile Pentium III processor.  
However, due to increased current flow, the value of the inductor has to be reduced, thereby  
requiring new components. The general desired topology is shown in Figure 5. Excluded from the  
external circuitry are parasitics associated with each component.  
A.2  
Filter Specification  
The function of the filter is two fold. It protects the PLL from external noise through low-pass  
attenuation. It also protects the PLL from internal noise through high-pass filtering. In general,  
the low-pass description forms an adequate description for the filter.  
The AC low-pass specification, with input at V  
and output measured across the capacitor, is as  
CCT  
follows:  
·
·
·
·
< 0.2-dB gain in pass band  
< 0.5-dB attenuation in pass band < 1 Hz (see DC drop in next set of requirements)  
34-dB attenuation from 1 MHz to 66 MHz  
28-dB attenuation from 66 MHz to core frequency  
The filter specification (AC) is graphically shown in Figure 27.  
Other requirements:  
·
·
·
Use a shielded type inductor to minimize magnetic pickup  
The filter should support a DC current of at least 30 mA  
The DC voltage drop from V  
to PLL1 should be less than 60 mV, which in practice  
CCT  
implies series resistance of less than 2W. This also means that the pass band (from DC to 1Hz)  
attenuation below 0.5 dB is for V = 1.1V and below 0.35 dB for V = 1.5V.  
CCT  
CCT  
Intel Corporation  
73  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Figure 27. PLL Filter Specifications  
0.2 dB  
0 dB  
x dB  
forbidden  
zone  
-28 dB  
forbidden  
zone  
-34 dB  
DC  
passband  
1 Hz  
fpeak  
1 MHz 66 MHz  
fcore  
high frequency  
band  
Vcct]  
x = 20.log[(Vcct-60 mV)/  
NOTES:  
Diagram is not to scale  
No specification for frequencies beyond fcore  
.
Fpeak, if existent, should be less than 0.05 MHz.  
A.3  
Recommendation for Mobile Systems  
The following LC components are recommended. The tables will be updated as other suitable  
components and specifications are identified.  
Table 44. PLL Filter Inductor Recommendations  
Inductor  
Part Number  
Value Tol  
SRF  
DCR  
Rated  
I
Min Damping R  
needed  
L1  
L2  
TDK MLF2012A4R7KT  
10% 35 MHz 30 mA  
4.7 mH 0.56W  
0W  
(1W max)  
Murata LQG21N4R7K10 4.7 mH 10% 47 MHz 30 mA  
0W  
0.7W (+/-  
50%)  
L3  
Murata LQG21C4R7N00  
30% 35 MHz 30 mA  
4.7 mH 0.3W max  
0.2W (assumed)  
NOTE:  
Minimum damping resistance is calculated from 0.35W – DCRmin. From vendor provided data, L1 and L2 DCRmin is  
0.4W and 0.5 Wrespectively, qualifying them for zero required trace resistance. DCRmin for L3 is not known and is  
assumed to be 0.15 W. There may be other vendors who might provide parts of equivalent characteristics and the  
OEMs should consider doing their own testing for selecting their own vendors..  
74  
Intel Corporation  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
Table 45. PLL Filter Capacitor Recommendations  
Capacitor  
Part Number  
Value  
33 mF  
33 mF  
Tolerance  
20%  
ESL  
ESR  
C1  
C2  
Kemet T495D336M016AS  
AVX TPSD336M020S0200  
2.5 nH  
unknown  
0.225W  
0.2W  
20%  
NOTE:  
There may be other vendors who might provide parts of equivalent characteristics and the OEMs should consider  
doing their own testing for selecting their own vendors.  
Table 46. PLL Filter Resistor Recommendations  
Resistor  
Part Number  
Value  
Tolerance  
Power  
R1  
various  
10%  
1/16W  
1W  
To satisfy damping requirements, total series resistance in the filter (from V  
to the top plate of  
CCT  
the capacitor) must be at least 0.35W. This resistor can be in the form of a discrete component, or  
routing, or both. For example, if the picked inductor has minimum DCR of 0.25W, then a routing  
resistance of at least 0.10W is required. Be careful not to exceed the maximum resistance rule  
(2W). For example, if using discrete R1, the maximum DCR of the L should be less than 2.0 - 1.1  
= 0.9W, which precludes using L2 and possibly L1.  
Other routing requirements:  
·
The capacitor should be close to the PLL1 and PLL2 pins, with less than 0.1W per route  
(These routes do not count towards the minimum damping resistance requirement).  
·
·
The PLL2 route should be parallel and next to the PLL1 route (minimize loop area).  
The inductor should be close to the capacitor; any routing resistance should be inserted  
between VCCT and the inductor.  
·
Any discrete resistor should be inserted between VCCT and the inductor.  
A.4  
Comments  
·
A magnetically shielded inductor protects the circuit from picking up external flux noise.  
This should provide better timing margins than with an unshielded inductor.  
·
A discrete or routed resistor is required because the LC filter by nature has an under-damped  
response, which can cause resonance at the LC pole. Noise amplification at this band,  
although not in the PLL-sensitive spectrum, could cause a fatal headroom reduction for  
analog circuitry. The resistor serves to dampen the response. Systems with tight space  
constraints should consider a discrete resistor to provide the required damping resistance. Too  
large of a damping resistance can cause a large IR drop, which means less analog headroom  
and lower frequency.  
·
Ceramic capacitors have very high self-resonance frequencies, but they are not available in  
large capacitance values. A high self-resonant frequency coupled with low ESL/ESR is  
crucial for sufficient rejection in the PLL and high frequency band. The recommended  
tantalum capacitors have acceptably low ESR and ESL.  
Intel Corporation  
75  
Mobile Pentium III Processor in BGA2 and Micro-PGA2 Packages Datasheet  
·
The capacitor must be close to the PLL1 and PLL2 pins, otherwise the value of the low ESR  
tantalum capacitor is wasted. Note the distance constraint should be translated from the 0.1-W  
requirement.  
The mobile Pentium II processor LC filter cannot be used with the mobile Pentium III processor.  
The larger inductor of the old LC filter imposes a lower current rating. Due to increased current  
requirements for the mobile Pentium III processor, a lower value inductor is required.  
76  
Intel Corporation  

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