CAT24C208WI [CATALYST]

1KX8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 0.150 INCH, GREEN, MS-012, SOIC-8;
CAT24C208WI
型号: CAT24C208WI
厂家: CATALYST SEMICONDUCTOR    CATALYST SEMICONDUCTOR
描述:

1KX8 I2C/2-WIRE SERIAL EEPROM, PDSO8, 0.150 INCH, GREEN, MS-012, SOIC-8

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器 光电二极管
文件: 总13页 (文件大小:204K)
中文:  中文翻译
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CAT24C208  
8-Kb Dual Port Serial EEPROM  
FEATURES  
DESCRIPTION  
I Supports Standard and Fast I2C protocol*  
I 2.5V to 5.5V operation  
The CAT24C208 is an 8-Kbit Dual Port Serial CMOS  
EEPROM internally organized as 4 segments of 256  
bytes each. The CAT24C208 features a 16-byte page  
write buffer and can be accessed from either of two  
separate I2C compatible ports, DSP (SDA, SCL) and  
DDC (SDA, SCL).  
I 16-byte page write buffer  
I Schmitt triggers and noise protection filters  
on I2C bus input  
I Low power CMOS technology  
I 1,000,000 program/erase cycles  
I 100 year data retention  
Arbitration between the two interface ports is automatic  
and allows the appearance of individual access to the  
memory from each interface.  
I Industrial temperature range  
I RoHS-compliant 8-lead SOIC package  
For Ordering Information details, see page 12.  
BLOCK DIAGRAM  
DSP V  
CC  
DDC V  
CC  
ARBITRATION  
LOGIC  
D
E
C
O
D
E
R
S
D
E
C
O
D
E
R
S
1K X 8  
MEMORY  
ARRAY  
DDC  
CONTROL  
LOGIC  
DISPLAY  
CONTROL  
LOGIC  
DSP SCL  
DSP SDA  
DDC SCL  
DDC SDA  
CONFIGURATION  
REGISTER  
EDID SEL  
V
SS  
2
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I C Bus Protocol.  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
1
CAT24C208  
PIN CONFIGURATION  
SOIC (W)  
1
2
3
4
8
7
6
5
DSP V  
DDC V  
CC  
CC  
DSP SCL  
DSP SDA  
EDID SEL  
DDC SCL  
DDC SDA  
V
SS  
PIN DESCRIPTION  
Pin Number  
Pin Name  
DSP VCC  
DSP SCL  
Function  
1
2
Device power from display controller  
The CAT24C208 DSP serial clock bidirectional pin is used to clock all  
data transfers into or out of the device DSP SDA pin and is also used to  
block DSP Port access when DDC Port is active.  
3
DSP SDA  
DSP Serial Data/Address. The bidirectional DSP serial data/address pin  
is used to transfer data into and out of the device from a display  
controller. The DSP SDA pin is an open drain output and can be wire-  
OR'ed with other open drain or open collector outputs.  
4
5
VSS  
Device ground.  
DDC SDA  
DDC Serial Data/Address. The bidirectional DDC serial data/address  
pin is used to transfer data into and out of the device from a DDC host.  
The DDC SDA pin is an open drain output and can be wire-OR'ed with  
other open drain or open collector outputs.  
6
7
8
DDC SCL  
EDID SEL  
DDC VCC  
The CAT24C208 DDC serial clock bidirectional pin is used to clock all  
data transfers into or out of the device DDC SDA pin, and is used to  
block DDC Port for access when DSP Port is active.  
EDID select. The CAT24C208 EDID select input selects the active bank  
of memory to be accessed via the DDC SDA/SCL interface as set in  
the configuration register.  
Device power when powered from a DDC host.  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
2
CAT24C208  
ABSOLUTE MAXIMUM RATINGS(1)  
Temperature Under Bias .................. -55°C to +125°C  
Storage Temperature........................ -65°C to +150°C  
Package Power Dissipation  
Capability (TA = 25°C) ................................... 1.0W  
Lead Soldering Temperature (10 secs) ............ 300°C  
Output Short Circuit Current(3) ........................ 100mA  
Voltage on Any Pin with  
Respect to Ground(2) ............ -2.0V to +VCC + 2.0V  
VCC with Respect to Ground ................ -2.0V to +7.0V  
Reliability Characteristics  
Symbol  
Parameter  
Reference Test Method  
Min  
Typ  
Max  
Units  
Cycles/Byte  
Years  
(4)  
NEND  
Endurance  
MIL-STD-883, Test Method 1033 1,000,000  
(4)  
TDR  
Data Retention  
ESD Susceptibility  
Latch-up  
MIL-STD-883, Test Method 1008  
JEDEC Standard JESD 22  
JEDEC Standard 17  
100  
2000  
100  
(4)  
VZAP  
Volts  
(4)(5)  
ILTH  
mA  
D.C. OPERATING CHARACTERISTICS  
V
= 2.5V to 5.5V, unless otherwise specified.  
CC  
Symbol Parameter  
ICC Power Supply Current  
ISB  
Test Conditions  
Min  
Typ  
Max  
3
Units  
mA  
fSCL = 100 KHz  
Standby Current (VCC = 5.0V)  
Input Leakage Current  
VIN = GND or either  
DSP or DDC VCC  
50  
µA  
ILI  
VIN = GND to either  
DSP or DDC VCC  
10  
10  
µA  
µA  
ILO  
Output Leakage Current  
VOUT = GND to either  
DSP or DDC VCC  
VIL  
VIH  
Input Low Voltage  
Input High Voltage  
– 1  
VCC x 0.7  
0.05  
VCC x 0.3  
VCC + 0.5  
V
V
VHYS Input Hysteresis  
V
VOL1  
VCCL1  
VCCL2  
Output Low Voltage (VCC = 3V)  
IOL = 3 mA  
0.4  
V
Leakage DSP VCC to DDC VCC  
Leakage DDC VCC to DSP VCC  
+100  
+100  
µA  
µA  
Note:  
(1) Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings  
only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this  
specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.  
(2) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20 ns. Maximum DC  
voltage on output pins is V +0.5V, which may overshoot to V + 2.0V for periods of less than 20ns.  
CC  
CC  
(3) Output shorted for no more than one second. No more than one output shorted at a time.  
(4) This parameter is tested initially and after a design or process change that affects the parameter.  
(5) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to V +1V.  
CC  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc No. 1044, Rev. F  
3
CAT24C208  
CAPACITANCE T = 25°C, f = 1.0 MHz, V  
= 5V  
A
CC  
Symbol Parameter  
Conditions  
VI/O = 0V  
VIN = 0V  
Min  
Typ  
Max Units  
(1)  
CI/O  
Input/Output Capacitance (Either DSP or DDC SDA)  
Input Capacitance (EDID, Either DSP or DDC SCL)  
8
6
pF  
pF  
(1)  
CIN  
Note:  
(1) This parameter is tested initially and after a design or process change that affects the parameter.  
A.C. CHARACTERISTICS  
VCC = 2.5V to 5.5V, unless otherwise specified.  
Read & Write Cycle Limits  
Symbol  
FSCL  
TI(1)  
Parameter  
Min  
Max  
400  
100  
0.9  
Units  
Clock Frequency  
kHz  
ns  
Noise Suppression Time Constant at SCL, SDA Inputs  
SCL Low to SDA Data Out and ACK Out  
tAA  
µs  
Time the Bus Must be Free Before a New Transmission  
Can Start  
(1)  
tBUF  
1.3  
µs  
tHD:STA  
tLOW  
Start Condition Hold Time  
Clock Low Period  
0.6  
1.3  
0.6  
µs  
µs  
µs  
tHIGH  
Clock High Period  
Start Condition Setup Time (for a Repeated Start  
Condition)  
tSU:STA  
0.6  
µs  
tHD:DAT  
tSU:DAT  
Data In Hold Time  
0
ns  
ns  
ns  
ns  
µs  
ns  
Data In Setup Time  
100  
(1)  
tR  
SDA and SCL Rise Time  
SDA and SCL Fall Time  
Stop Condition Setup Time  
Data Out Hold Time  
300  
300  
(1)  
tF  
tSU:STO  
tDH  
0.6  
100  
Note:  
(1) This parameter is tested initially and after a design or process change that affects the parameter.  
(2) t and t are the delays required from the time V is stable until the specified operation can be initiated.  
PUR  
PUW  
CC  
Power-Up Timing(1)(2)  
Symbol  
tPUR  
Parameter  
Min  
Typ  
Max  
1
Units  
ms  
Power-up to Read Operation  
Power-up to Write Operation  
tPUW  
1
ms  
Write Cycle Limits  
Symbol  
Parameter  
Min  
Typ  
Max  
Units  
tWR  
Write Cycle Time  
5
ms  
The write cycle time is the time from a valid stop condition of a write sequence to the end of the internal program/erase  
cycle. Duringthewritecycle, thebusinterfacecircuitsaredisabled, SDAisallowedtoremainhigh, andthedevicedoes  
not respond to its slave address.  
© 2006 by Catalyst Semiconductor, Inc.  
Doc. No. 1044, Rev. F  
4
Characteristics subject to change without notice  
CAT24C208  
interface, the memory space appears as two 512 byte  
banks of memory, with 2 segments each 00h and 01h in  
the upper and lower bank, see Table 1.  
FUNCTIONAL DESCRIPTION  
The CAT24C208 has a total memory space of 1K bytes  
which is accessible from either of two I2C interface  
ports, (DSP_SDA and DSP_SCL) or (DDC_SDA and  
DDC_SCL), and with the use of segment pointer at  
address 60h. On power up and after any instruction, the  
segment pointer will be in segment 00h for DSP and in  
segment 00h of the bank selected by the configuration  
register for DDC.  
Each bank of memory can be used to store an E-EDID  
data structure. However, only one bank can be read  
through the DDC port at a time. The active bank of  
memory (that is, the bank that appears at address A0h  
on the DDC port) is controlled through the configuration  
register at 62/63h and the EDID_SEL pin.  
NowriteoperationsarepossiblefromtheDDCinterface  
unless the DDC Write Enable bit is set (WE = 1) in the  
device configuration register at device address 62h.  
The entire memory appears as contiguous memory  
space from the perspective of the display interface  
(DSP_SDA and DSP_SCL), see Table 2, and Figures  
11 to Figure 18 for a complete description of the DSP  
Interface.  
The device automatically arbitrates between the two  
interfaces to allow the appearance of individual access  
to the memory from each interface.  
A configuration register at addresses 62/63h is used to  
configure the operation and memory map of the device  
as seen from the DDC interface, (DDC_SDA and  
DDC_SCL).  
In a typical E-EDID application the EDID_SEL pin is  
usually connected to the “Analog Cable Detect” pin of a  
VESA M1 compliant, dual-mode (analog and digital)  
display. In this manner, the E-EDID appearing at ad-  
dress A0h on the DDC port will be either the analog or  
digital E-EDID, depending on the state of the “Analog  
Cable Detect” pin (pin C3 of the M1-DA connector). See  
Figure 1.  
Read and write operations can be performed on any  
location within the memory space from the display DSP  
interface regardless of the state of the EDID SEL pin or  
the activity on the DDC interface. From the DDC  
Figure 1.  
28  
DDC +5V  
47.5K  
+5V DC  
(SUPPLIED  
BY DISPLAY)  
10K  
8
7
6
5
1
2
3
4
C3  
27  
26  
I2C TO PROJECTOR/MONITOR  
DISPLAY CONTROLLER  
E-EDID  
EEPROM  
TO HOST  
CONTROLLER  
DDC CLK  
DDC DATA  
FUSE, RESISTOR  
OR OTHER CURRENT  
LIMITING DEVICE  
REQUIRED IN ALL M1 DISPLAYS  
RELAY CONTACTS SHOWN IN  
DE-ENERGIZED POSITION  
8
HPD  
2A MAX  
Table 1: DDC Interface  
Table 2: DSP Interface  
MEMORY ARRAY  
MEMORY ARRAY  
Segment 1  
256 Bytes  
Segment 3  
256 Bytes  
11  
10  
01  
Upper  
00  
00  
00  
Bank  
Segment 0  
256 Bytes  
Segment 2  
256 Bytes  
01  
00  
01  
Segment 1  
256 Bytes  
Segment 1  
256 Bytes  
Lower  
Bank  
00  
00  
Segment 0  
256 Bytes  
Segment 0  
256 Bytes  
Segment Pointer  
Segment Pointer  
No Segment Pointer  
Address by  
No Segment Pointer  
Configuration Register  
(see Figure 19)  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc No. 1044, Rev. F  
5
CAT24C208  
I2C Bus Protocol  
Acknowledge  
ThefollowingdefinesthefeaturesoftheI2Cbusprotocol:  
After a successful data transfer, each receiving device is  
requiredtogenerateanacknowledge.Theacknowledging  
devicepullsdowntherespectiveSDAlineduringtheninth  
clock cycle, signaling that it received the 8 bits of data.  
(1) Data transfer may be initiated only when the bus is  
not busy.  
(2) During a data transfer, the data line must remain  
stable whenever the clock line is high. Any changes  
in the data line while the clock line is high will be  
interpreted as a START or STOP condition.  
The CAT24C208 responds with an acknowledge after  
receiving a START condition and its slave address. If the  
device has been selected along with a write operation, it  
responds with an acknowledge after receiving each 8-bit  
byte.  
START Condition  
The START Condition precedes all commands to the  
device, and is defined as a HIGH to LOW transition of  
either SDA when the respective SCL is HIGH. The  
CAT24C208 monitors the SDA and SCL lines and will  
not respond until this condition is met.  
When the CAT24C208 is in a READ mode it transmits 8  
bits of data, releases the respective SDA line, and  
monitors the line for an acknowledge. Once it receives  
this acknowledge, the CAT24C208 will continue to  
transmit data. If no acknowledge is sent by the Master,  
the device terminates data transmission and waits for a  
STOP condition.  
STOP Condition  
A LOW to HIGH transition of SDA when SCL is HIGH  
determinestheSTOPcondition.Alloperationsmustend  
with a STOP condition.  
After an unsuccessful data transfer an acknowledge will  
not be issued (NACK) by the slave (CAT24C208), and  
the master should abort the sequence. If continued the  
device will read from or write to the wrong address in the  
two instruction format with the segment pointers.  
Figure 2. Acknowledge Timing  
BUS RELEASE DELAY (TRANSMITTER)  
BUS RELEASE DELAY (RECEIVER)  
SCL FROM  
MASTER  
1
8
9
DATA OUTPUT  
FROM TRANSMITTER  
DATA OUTPUT  
FROM RECEIVER  
ACK SETUP  
START  
ACK DELAY  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
6
CAT24C208  
DEVICE ADDRESSING  
DDC Interface  
Both the DDC and DSP interfaces to the device are  
based on the I2C bus serial interface. All memory space  
operations are done at the A0/A1 DDC address pair. As  
such, all write operations to the memory space are done  
at DDC address A0h and all read operations of the  
memory space are done at DDC address A1h.  
is being read. Here the segment 00h can be at the lower  
or upper bank depending on the configuration register.  
Sequentialreadscanbedoneinmuchthesamemanner  
by reading successive bytes after each acknowledge  
without generating a stop condition. See Figure 4. The  
device automatically increments the word offset value  
(8-bit value) and with wraparound in the same segment  
00h to read maximum of 256 bytes.  
Figure 3 shows the bit sequence of a random read from  
anywhere within the memory space. The word offset  
determines which of the 256 bytes within segment 00h  
Figure 3. Random Access Read (Segment 00h only)  
WORD OFFSET  
START  
1010 0000  
ACK  
A7 - A0 ADDRESS  
ACK  
START  
1010 0001  
ACK  
DATA  
NOACK  
STOP  
Figure 4. Sequential Read (Segment 00h only)  
WORD OFFSET  
A7 - A0  
ADDRESS  
START  
1010 0000 ACK  
ACK START 1010 0001 ACK  
DATA0  
ACK  
......... DATAN NOACK STOP  
Figures 5 and 6 show the byte and page write respectively. The configuration register must have the WE bit set to 1  
prior to any write on DDC Port. Only the segment 00h can be accessed of either lower or upper bank.  
Figure 5. Byte Write (Segment 00h only)  
WORD OFFSET  
START  
1010 0000  
ACK  
A7 - A0 ADDRESS  
ACK  
DATA  
ACK  
STOP  
Figure 6. Page Write (Segment 00h only)  
WORD OFFSET  
START  
1010 0000  
ACK  
A7 - A0 ADDRESS  
ACK  
DATA0  
ACK  
.........  
DATA15  
ACK  
STOP  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc No. 1044, Rev. F  
7
CAT24C208  
The segment pointer is at the address 60h and is write-  
only. This means that a memory access at 61h will give  
undefined results. The segment pointer is a volatile  
register.Thedeviceconfigurationregisterat62/63(hex)  
is a non-volatile register. The configuration register will  
be shipped in the erased (set to FFh) state.  
256 bytes within a segment. Note that if the segment  
pointer is set to 00h then the device will behave like a  
standard DDC2B EEPROM.  
Read and write with segment pointer can expand the  
addressable memory to 512 bytes in each bank with  
wraparound to the next segment in the same bank only.  
The two banks can be individually selected by the  
configuration register and EDID Sel pin, as shown in  
figure19.ThesegmentsareselectedbythetwobitsS1S0  
= 00 or 01 in the segment address.  
The segment pointer is used to expand the available  
DDC address space while maintaining backward com-  
patibility with older DDC interfaces such as DDC2B. For  
each value of the 8-bit segment pointer one segment  
(256 bytes) is available at the A0/A1 pair. The standard  
DDC 8-bit address is sufficient to address each of the  
Figures 7 to 10 show the random read, sequential read,  
byte write and page write.  
Figure 7. Random Access Read  
START  
START  
0110 0000  
1010 0000  
ACK  
ACK  
xxxx xxS1S0 Segment ADDRESS  
A7 - A0 ADDRESS  
ACK  
ACK  
START  
1010 0001  
ACK  
DATA NOACK STOP  
Figure 8. Sequential Read  
START 0110 0000 ACK xxxx xxS1S0 Segment ADDRESS  
ACK  
START 1010 0000 ACK  
A7 - A0 ADDRESS  
ACK START 1010 0001 ACK DATA0 ACK ...... DATAN NOACK STOP  
Figure 9. Byte Write  
START 0110 0000 ACK xxxx xxS1S0 Segment ADDRESS  
ACK  
START 1010 0000 ACK  
A7 - A0 ADDRESS  
ACK  
DATA  
ACK  
STOP  
Figure 10. Page Write  
START 0110 0000  
START 1010 0000  
ACK  
ACK  
xxxx xxS1S0 Segment ADDRESS  
ACK  
A7 - A0 ADDRESS ACK DATA0 ACK  
..........  
DATA15  
ACK  
STOP  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
8
CAT24C208  
DSP Interface  
The DSP interface is similar to I2C bus serial interface.  
Without the segment pointer, the maximum accessible  
memory space is 256 bytes of segment 00h only. In the  
sequential mode the wrap around will be in the same  
segment also. Figures 11 to 14 show the read and write  
on the DSP Port.  
Figure 11. Random Access Read  
START  
1010 0000  
ACK  
A7 - A0 ADDRESS  
ACK  
START  
1010 0001  
ACK  
DATA  
NOACK STOP  
Figure 12. Sequential Read  
START 1010 0000 ACK A7 - A0 ADDRESS ACK START 1010 0001 ACK DATA0 ACK ..... DATAN NOACK STOP  
Figure 13. Byte Write  
START  
1010 0000  
ACK  
A7 - A0 ADDRESS  
ACK  
DATA  
ACK  
STOP  
Figure 14. Page Write  
START 1010 0000 ACK A7 - A0 ADDRESS ACK DATA0  
ACK  
......  
DATA15  
ACK STOP  
The segment pointer is used to expand the available  
DSP port addressable memory to 1k bytes, divided into  
foursegmentsof256byteseach.Thefoursegmentsare  
selected by two bits S1S0 = 00, 01, 10, 11 in the segment  
address. Figures 15 to 18 show the random read,  
sequential read, byte write and page write.  
Figure 15. Random Access Read  
START 0110 0000 ACK  
START 1010 0000 ACK  
xxxx xxS1S0 Segment ADDRESS  
A7 - A0 ADDRESS ACK  
ACK  
START 1010 0001 ACK  
DATA  
NOACK STOP  
Figure 16. Sequential Read  
START 0110 0000 ACK  
xxxx xxS1S0 Segment ADDRESS  
ACK  
START 1010 0000 ACK  
A7 - A0 ADDRESS ACK START 1010 0001 ACK DATA0 ACK ....... DATAN NOACK STOP  
Figure 17. Byte Write  
START 0110 0000 ACK  
START 1010 0000 ACK  
xxxx xxS1S0 Segment ADDRESS  
A7 - A0 ADDRESS ACK  
ACK  
DATA  
ACK STOP  
Figure 18. Page Write  
START 0110 0000 ACK  
START 1010 0000 ACK  
xxxx xxS1S0 Segment ADDRESS  
A7 - A0 ADDRESS ACK DATA0  
ACK  
ACK  
......  
DATA15  
ACK  
STOP  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc No. 1044, Rev. F  
9
CAT24C208  
ARBITRATION  
detected on either port, the opposite port SCL line is  
pulled low, holding off activity on that port. When the  
initiating SCL line has remained high for one full second,  
thearbitrationlogicassumesthattheinitiatingdevicesis  
finished and releases the other SCL line. If the non-  
initiating device has been waiting for access, it can now  
read or write the device.  
The device performs a simplistic arbitration between the  
DDC and DSP ports. While the arbitration scheme  
described is not foolproof, it does prevent most errors.  
Arbitration logic within the device monitors activity on  
DDC_SCLandDSP_SCL.WhenbothI2Cportsareidle,  
DDC_SCL and DSP_SCL are both high and the  
arbitration logic is inactive. When a START condition is  
CONFIGURATION REGISTER  
MSB  
LSB  
7
6
5
4
3
2
1
0
Register Function  
X
X
X
X
WE  
AB1  
AB0  
NB  
Configuration Register  
Function Description:  
NB:  
Number of memory banks in DDC port memory map. 0 = 2 Banks, 1 = 1 Bank  
AB0:  
Active Bank Control Bit 0 (See Figure 19)  
AB1:  
Active Bank Control Bit 1 (See Figure 19)  
WE DDC:  
Write Enable 0 = Write Disabled, 1= Write Enabled  
Note: WE affects only write operations from the DDC port, not the display port. The display port always has write access.  
Figure 19. Configuration Register Truth Table  
EDID  
AB1  
AB0  
NB  
Active Bank  
Select Pin  
0
0
1
1
X
X
X
0
0
0
0
0
1
0
1
Lower Bank  
Upper Bank  
X
X
X
Lower Bank  
1
Upper Bank  
X
Lower (only) Bank  
The configuration register is a non-volatile register and  
isavailablefromeitherDSPorDDCportataddress62h/  
63h for write and read resp.  
Figure 20. Read Configuration Register  
START  
0110 0011  
ACK  
DATA  
NO ACK  
ACK  
STOP  
Figure 21. Write Configuration Register  
START  
0110 0010  
ACK  
DUMMY ADDRESS  
XXXX WE AB1 AB0 NB  
ACK  
STOP  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
10  
CAT24C208  
PACKAGING INFORMATION  
8-Lead 150 MIL SOIC (W)  
E1  
E
h x 45  
D
C
A
θ1  
e
A1  
L
b
SYMBOL  
MIN  
0.10  
1.35  
0.33  
0.19  
4.80  
5.80  
3.80  
NOM  
MAX  
0.25  
1.75  
0.51  
0.25  
5.00  
6.20  
4.00  
A1  
A
b
C
D
E
E1  
e
1.27 BSC  
h
0.25  
0.40  
0°  
0.50  
1.27  
8°  
L
θ1  
Notes:  
1. All dimensions are in millimeters.  
2. Complies with JEDEC specification MS-012.  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc No. 1044, Rev. F  
11  
CAT24C208  
EXAMPLE OF ORDERING INFORMATION  
Prefix  
Device #  
24C208  
Suffix  
CAT  
W
I
G
T3  
Company ID  
Product Number  
Temperature Range  
I = Industrial (-40°C to 85°C)  
Tape & Reel  
T: Tape & Reel  
3: 3000/Reel  
24C208  
Package  
W: SOIC  
Lead Finish  
G: NiPdAu (PPF)  
Notes:  
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).  
(2) The standard lead finish is NiPdAu.  
(3) This device used in the above example is a CAT24C208WI-GT3 (SOIC, Industrial Temperature, NiPdAu, Tape & Reel)  
(4) For additional package and temperature options, please contact your nearest Catalyst Semiconductor Sales office.  
© 2006 by Catalyst Semiconductor, Inc.  
Characteristics subject to change without notice  
Doc. No. 1044, Rev. F  
12  
REVISION HISTORY  
Date  
Rev.  
Reason  
2/18/2004  
C
Changed volt operation to 3V to 5.5V  
Updated Block Diagram  
Updated Pin Descriptions  
Updated DC Operating Characteristics  
Updated AC Characteristics  
Changed/Added figures 3 - 21  
Updated Ordering Information  
03/25/2005  
06/22/06  
D
E
Updated Function Description  
Updated Ordering Information  
Update Title  
Update Features  
Update Description  
Updated DC Operating Characteristics  
Updated AC Characteristics  
Update Arbitration  
Updated Example of Ordering Information  
06/28/06  
F
Update Features  
Update Pin Configurations  
Update Absolute Maximum Ratings  
Update Reliability Characteristics  
Update DC Operating Characteristics  
Update Figure 2  
Update Package Drawing  
Update Example of Ordering Information  
Copyrights, Trademarks and Patents  
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:  
DPP ™  
AE2 ™  
MiniPot™  
Catalyst Semiconductor has been issued U.S. and foreign patents and has patent applications pending that protect its products.  
CATALYST SEMICONDUCTOR MAKES NO WARRANTY, REPRESENTATION OR GUARANTEE, EXPRESS OR IMPLIED, REGARDING THE SUITABILITY OF ITS  
PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE  
RIGHTS OF THIRD PARTIES WITH RESPECT TO ANY PARTICULAR USE OR APPLICATION AND SPECIFICALLY DISCLAIMS ANY AND ALL LIABILITY ARISING  
OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.  
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or  
other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a  
situation where personal injury or death may occur.  
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets  
labeled "Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.  
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate  
typical semiconductor applications and may not be complete.  
Catalyst Semiconductor, Inc.  
Corporate Headquarters  
1250 Borregas Avenue  
Sunnyvale, CA 94089  
Phone: 408.542.1000  
Fax: 408.542.1200  
www.catsemi.com  
Publication #: 1044  
Revison:  
F
Issue date:  
06/28/06  

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