PA7540S-15L [DIODES]

EE PLD, 15ns, CMOS, PDSO24, 0.300 INCH, LEAD FREE, SOIC-24;
PA7540S-15L
型号: PA7540S-15L
厂家: DIODES INCORPORATED    DIODES INCORPORATED
描述:

EE PLD, 15ns, CMOS, PDSO24, 0.300 INCH, LEAD FREE, SOIC-24

时钟 栅 输入元件 光电二极管 可编程逻辑
文件: 总10页 (文件大小:324K)
中文:  中文翻译
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PA7540 PEEL™ Array  
Programmable Electrically Erasable Logic Array  
Most Powerful 24-pin PLD Available  
CMOS Electrically Erasable Technology  
- Reprogrammable in 24-pin DIP, SOIC and  
28-pin PLCC packages  
- 20 I/Os, 2 inputs/clocks, 40 registers/latches  
- 40 logic cell output functions  
- PLA structure with true product-term sharing  
- Logic functions and registers can be I/O-buried  
- Optional JN package for 22V10 power/ground  
compatibility  
Flexible Logic Cell  
Ideal for Combinatorial, Synchronous and  
Asynchronous Logic Applications  
- 2 output functions per logic cell  
- D,T and JK registers with special features  
- Independent or global clocks, resets, presets,  
clock polarity and output enables  
- Sum-of-products logic for output enables  
- Integration of multiple PLDs and random logic  
- Buried counters, complex state-machines  
- Comparators, decoders, multiplexers and other wide-  
gate functions  
Development and Programmer Support  
- Anachip’s WinPLACE Development Software  
- Fitters for ABEL, CUPL and other software  
- Programming support by popular third-party  
programmers  
High-Speed Commercial and Industrial Versions  
- As fast as 10ns/15ns (tpdi/tpdx), 71.4MHz (fMAX  
)
- Industrial grade available for 4.5 to 5.5V VCC and  
-40 to +85 °C temperatures  
General Description  
The PA7540 is a member of the Programmable Electrically presets, clock polarity, and other features, making the  
Erasable Logic (PEEL™) Array family based on ICT’s PA7540 suitable for  
a
variety of combinatorial,  
CMOS EEPROM technology. PEEL™ Arrays free synchronous and asynchronous logic applications. With pin  
designers from the limitations of ordinary PLDs by compatibility and super-set functionality to most 24-pin  
providing the architectural flexibility and speed needed for PLDs, (22V10, EP610/630, GAL6002), the PA7540 can  
today’s programmable logic designs. The PA7540 is by far implement designs that exceed the architectures of such  
the most powerful 24-pin PLD available today with 20 I/O devices. The PA7540 supports speeds as fast as  
pins, 2 input/global-clocks and 40 registers/latches (20 10ns/15ns (tpdi/tpdx) and 71.46MHz (fMAX) at moderate  
buried logic cells and 20 I/O registers/latches). Its logic power consumption 80mA (55mA typical). Packaging  
array implements 84 sum-of-products logic functions. The includes 24-pin DIP, SOIC and 28-pin PLCC (see Figure 1).  
PA7540’s logic and I/O cells (LCCs, IOCs) are extremely Anachip and popular third-party development tool  
flexible offering two output functions per cell (a total of 40 manufacturers provide development and programming  
for all 20 logic cells). Logic cells are configurable as D, T, support for the PA7540.  
and JK registers with independent or global clocks, resets,  
Figure 1. Pin Configuration  
Figure 2. Block Diagram  
I/CLK1  
I/O  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
VCC  
I/O  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
2 Input/  
I/CLK1  
I/O  
VCC  
I/O  
2
Global Clock Pins  
2
3
4
5
6
7
8
9
3
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
4
Global  
Cells  
I/O  
I/O  
5
I/O  
I/O  
84 (42X2)  
Array Inputs  
true and  
6
I/O  
I/O  
7
I/O  
I/O  
8
I/O  
I/O  
9
I/O  
I/O  
2
complement  
I/O  
Cells  
(IOC)  
10  
11  
12  
I/O  
I/O  
20 I/O Pins  
Global Cells  
I/O Cells  
I/O  
I/O  
20  
20  
I/CLK1  
I/O  
VCC  
I/O  
GND  
I/CLK2  
10  
11  
12  
I/O  
I/O  
I/O  
GND  
I/O  
I/CLK2  
Buried  
logic  
SOIC  
I/O  
I/O  
Logic  
Array  
I/O  
I/O  
DIP  
Logic functions  
to I/O cells  
Logic  
I/O  
I/O  
A
B
C
D
Control  
Cells  
I/O  
I/O  
20  
20  
I/O  
I/O  
(LCC)  
I/O  
I/O  
I/O  
GND  
I/O  
I/O  
I/O  
I/CLK2  
4
3
2
1
28 27 26  
4
3
2
1
28 27 26  
4 sum terms  
4 product terms  
for Global Cells  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
NC  
I/O  
I/O  
I/O  
5
6
7
8
9
10  
11  
25  
24  
23  
22  
21  
20  
19  
5
6
7
8
9
10  
11  
25  
24  
23  
22  
21  
20  
19  
20 Logic Control Cells  
2 output functions per cell  
(40 total output functions possible)  
80 sum terms  
(four per LCC)  
I/O  
I/O  
NC  
I/O  
I/O  
I/O  
PA7540  
NC NC  
08-14-002A  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
Logic Control Cells  
12 13 14 15 16 1718  
12 13 14 15 16 17 18  
PLCC-JN  
PLCC-J  
08-14-001B  
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights  
under any patent accompany the sale of the product.  
Rev. 1.0 Dec 16, 2004  
1/10  
To find out if the package you need is  
available, contact Customer Service  
Inside the Logic Array  
The heart of the PEEL™ Array architecture is based on a needed and not left unutilized or duplicated. Secondly, the  
logic array structure similar to that of a PLA (programmable sum-of-products functions provided to the logic cells can be  
AND, programmable OR). The logic array implements all used for clocks, resets, presets and output enables instead of  
logic functions and provides interconnection and control of just simple product-term control.  
the cells. In the PA7540 PEEL™ Array, 42 inputs are  
The PEEL™ logic array can also implement logic functions  
available into the array from the I/O cells and input/global-  
with many product terms within a single-level delay. For  
clock pins.  
example a 16-bit comparator needs 32 shared product terms  
All inputs provide both true and complement signals, which to implement 16 exclusive-OR functions. The PEEL™ logic  
can be programmed to any product term in the array. The array easily handles this in a single level delay. Other  
PA7540 PEEL™ Arrays contains 84 product terms. All PLDs/CPLDs either run out of product-terms or require  
product terms (with the exception of certain ones fed to the expanders or additional logic levels that often slow  
global cells) can be programmably connected to any of the performance and skew timing.  
sum-terms of the logic control cells (four sum-terms per  
logic control cell). Product-terms and sum-terms are also  
Logic Control Cell (LCC)  
routed to the global cells for control purposes. Figure 3  
Logic Control Cells (LCC) are used to allocate and control the  
logic functions created in the logic array. Each LCC has four  
primary inputs and three outputs. The inputs to each LCC are  
complete sum-of-product logic functions from the array, which  
can be used to implement combinatorial and sequential logic  
functions, and to control LCC registers and I/O cell output  
enables.  
shows a detailed view of the logic array structure.  
From  
IO Cells  
(IOC) and  
I/CLKs  
From Global Cell  
42 Array Inputs  
Preset RegType Reset  
System Clock  
On/Off  
MUX  
To  
Array  
From  
Logic  
P
D,T,J  
Q
Control  
MUX  
REG  
Cells  
(LCC)  
K
R
A
B
C
D
From  
Array  
To  
Global  
Cells  
84 Product Terms  
To  
I/O  
Cell  
MUX  
To  
Logic Control  
Cells  
(LCC)  
08-14-004A  
Figure 4. Logic Control Cell Block Diagram  
84 Sum Terms  
08-14-003A  
PA7540 Logic Array  
As shown in Figure 4, the LCC is made up of three signal  
routing multiplexers and a versatile register with synchronous  
or asynchronous D, T, or JK registers (clocked-SR registers,  
which are a subset of JK, are also possible). See Figure 5.  
EEPROM memory cells are used for programming the  
desired configuration. Four sum-of-product logic functions  
(SUM terms A, B, C and D) are fed into each LCC from the  
logic array. Each SUM term can be selectively used for  
multiple functions as listed below.  
Figure 3 PA7540 Logic Array  
True Product-Term Sharing  
The PEEL™ logic array provides several advantages over  
common PLD logic arrays. First, it allows for true product-  
term sharing, not simply product-term steering, as  
commonly found in other CPLDs. Product term sharing  
ensures that product-terms are used where they are  
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Sum-A = D, T, J or Sum-A  
can be registered, one output can be combinatorial and the  
third, an output enable. The multi-function PEEL™ Array logic  
cells are equivalent to two or three macrocells of other PLDs,  
which have only one output per cell. They also allow registers  
to be truly buried from I/O pins without limiting them to input-  
only (see Figure 8 ).  
Sum-B = Preset, K or Sum-B  
Sum-C = Reset, Clock, Sum-C  
Sum-D = Clock, Output Enable  
D Register  
Q = D after clocked  
P
D
Q
Q
Q
Best for storage, simple counters,  
shifters and state machines with  
few hold (loop) conditions.  
From Global Cell  
R
I/O Cell Clock  
T Register  
Q toggles when T = 1  
Q holds when T = 0  
REG/  
Latch  
P
R
T
Q
Best for wide binary counters (saves  
product terms) and state machines  
with many hold (loop) conditions.  
To  
Array  
MUX  
Input  
JK Register  
Q toggles when J/K = 1/1  
Q holds when J/K = 0/0  
Q = 1  
Q = 0  
P
R
J
when J/K = 1/0  
when J/K = 0/1  
K
A,B,C  
or  
Q
MUX  
Combines features of both D and T  
registers.  
I/O Pin  
From  
Logic  
Control  
Cell  
08-14-005A  
MUX  
D
Figure 5. LCC Register Types  
0
1
7540 /O Cell (IOC)  
SUM-A can serve as the D, T, or J input of the register or a  
combinatorial path. SUM-B can serve as the K input, or the  
preset to the register, or a combinatorial path. SUM-C can  
be the clock, the reset to the register, or a combinatorial  
path. SUM-D can be the clock to the register or the output  
enable for the connected I/O cell. Note that the sums  
controlling clocks, resets, presets and output enables are  
complete sum-of-product functions, not just product terms  
as with most other PLDs. This also means that any input or  
I/O pin can be used as a clock or other control function.  
08-14-006A  
Figure 6. I/O Cell Block Diagram  
IOC Register  
D
Q
Q = D after rising edge of clock  
holds until next rising edge  
IOC Latch  
L
Q
Q = L when clock is high  
holds value when clock is low  
Several signals from the global cell are provided primarily  
for synchronous (global) register control. The global cell  
signals are routed to all LCCs. These signals include a  
high-speed clock of positive or negative polarity, global  
preset and reset, and a special register-type control that  
selectively allows dynamic switching of register type. This  
last feature is especially useful for saving product terms  
when implementing loadable counters and state machines  
by dynamically switching from D-type registers to load and  
T-type registers to count (see Figure 10).  
08-14-007A  
Figure 7. IOC Register Configurations  
I/O Cell (IOC)  
All PEEL™ Arrays have I/O cells (IOC) as shown above in  
Figure 6. Inputs to the IOCs can be fed from any of the LCCs  
in the array. Each IOC consists of routing and control  
multiplexers, an input register/transparent latch, a three-state  
buffer and an output polarity control. The register/ latch can  
be clocked from a variety of sources determined by the global  
cell. It can also be bypassed for a non-registered input. The  
combination of LCC and IOC allows for multiple buried  
registers and logic paths. (See Figure 8).  
Multiple Outputs Per Logic Cell  
An important feature of the logic control cell is its capability  
to have multiple output functions per cell, each operating  
independently. As shown in Figure 4, two of the three  
outputs can select the Q output from the register or the  
Sum A, B or C combinatorial paths. Thus, one LCC output  
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Group A & B  
LCC Clocks  
MUX  
MUX  
Q
D
CLK1  
CLK2  
Input with optional  
register/latch  
I/O  
IOC Clocks  
PCLK  
Reg-Type  
LCC Reg-Type  
LCC Presets  
LCC Resets  
I/O with  
independent  
output enable  
Preset  
Reset  
1
D
Q
A
B
C
D
Global Cell: LCC & IOC  
2
08-14-009A  
OE  
08-14-008A  
Figure 9. Global Cells  
Reg-Type from Global Cell  
Figure 8. LCC & IOC With Two Outputs  
Global Cells  
The global cells, shown in Figure 9, are used to direct  
global clock signals and/or control terms to the LCCs and  
IOCs. The global cells allow a clock to be selected from the  
CLK1 pin, CLK2 pin, or a product term from the logic array  
(PCLK). They also provide polarity control for IOC clocks  
enabling rising or falling clock edges for input  
registers/latches. Note that each individual LCC clock has  
its own polarity control. The global cell includes sum-of-  
products control terms for global reset and preset, and a  
fast product term control for LCC register-type, used to  
save product terms for loadable counters and state  
machines (see Figure 10). The PA7540 provides two  
global cells that divides the LCC and IOCs into two groups,  
A and B. Half of the LCCs and IOCs use global cell A, half  
use global cell B. This means, for instance, two high-speed  
global clocks can be used among the LCCs.  
Register Type Change Feature  
Global Cell can dynamically change user-  
selected LCC registers from D to T or from D  
to JK. This saves product terms for loadable  
counters or state machines. Use as D register  
to load, use as T or JK to count. Timing allows  
dynamic operation.  
P
R
D
Q
Example:  
Product terms for 10 bit loadable binary counter  
P
R
T
Q
D uses 57 product terms (47 count, 10 load)  
T uses 30 product terms (10 count, 20 load)  
D/T uses 20 product terms (10 count, 10 load)  
08-14-010A  
Figure 10. Register Type Change Feature  
internal signals to be simulated and analyzed via a  
waveform display.(See Figures 10)  
PEEL™ Array Development Support  
Development support for PEEL™ Arrays is provided by  
Anachip and manufacturers of popular development tools.  
Anachip offers the powerful WinPLACE Development  
Software (free to qualified PLD designers).  
PEEL™ Array development is also supported by popular  
development tools, such as ABEL via Anachip’s PEEL™  
Array fitters. A special smart translator utility adds the  
capability to directly convert JEDEC files for other devices  
into equivalent JEDEC files for pin-compatible PEEL™  
Arrays.  
The PLACE software includes an architectural editor, logic  
compiler, waveform simulator, documentation utility and a  
programmer interface. The PLACE editor graphically  
illustrates and controls the PEEL™ Array’s architecture,  
making the overall design easy to understand, while  
allowing the effectiveness of boolean logic equations, state  
machine design and truth table entry. The PLACE compiler  
performs logic transformation and reduction, making it  
possible to specify equations in almost any fashion and fit  
the most logic possible in every design. PLACE also  
provides a multi-level logic simulator allowing external and  
Programming  
PEEL™ Arrays are EE-reprogrammable in all package  
types, plastic-DIP, PLCC and SOIC. This makes them an  
ideal development vehicle for the lab. EE -  
reprogrammability is also useful for production, allowing  
unexpected changes to be made quickly and without waste.  
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Programming of PEEL™ Arrays is supported by many  
popular third party programmers.  
Design Security and Signature Word  
The PEEL™ Arrays provide a special EEPROM security bit  
that prevents unauthorized reading or copying of designs.  
Once set, the programmed bits of the PEEL™ Arrays  
cannot be accessed until the entire chip has been  
electrically erased. Another programming feature,  
signature word, allows a user-definable code to be  
programmed into the PEEL™ Array. The code can be read  
back even after the security bit has been set. The signature  
word can be used to identify the pattern programmed in the  
device or to record the design revision.  
Figure 12 - WinPLACE LCC and IOC screen  
Figure 11 - WinPLACE Architectural Editor for  
PA7540  
Figure 13 - WinPLACE waveform and  
simulator screen  
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This device has been designed and tested for the  
specified operating ranges. Improper operation outside of  
these levels is not guaranteed. Exposure to absolute  
maximum ratings may cause permanent damage.  
Table 1. Absolute Maximum Ratings  
Symbol  
VCC  
Parameter  
Supply Voltage  
Conditions  
Relative to Ground  
Relative to Ground1  
Ratings  
-0.5 to + 7.0  
-0.5 to VCC + 0.6  
±25  
Unit  
V
VI, VO  
IO  
Voltage Applied to Any Pin  
Output Current  
V
Per pin (IOL, IOH  
)
mA  
°C  
TST  
Storage Temperature  
Lead Temperature  
-65 to + 150  
+300  
TLT  
Soldering 10 seconds  
°C  
Table 2. Operating Ranges  
Symbol  
Parameter  
Conditions  
Commercial  
Industrial  
Min  
Max  
Unit  
4.75  
5.25  
VCC  
Supply Voltage  
V
4.5  
0
5.5  
+70  
+85  
20  
Commercial  
Industrial  
TA  
Ambient Temperature  
°C  
-40  
TR  
TF  
Clock Rise Time  
Clock Fall Time  
VCC Rise Time  
See Note 2  
See Note 2  
See Note 2  
ns  
ns  
20  
TRVCC  
250  
ms  
Table 3. D.C. Electrical Characteristics  
Over the Operating Range  
Symbol  
VOH  
VOHC  
VOL  
Parameter  
Conditions  
Min  
2.4  
Max  
Unit  
V
Output HIGH Voltage - TTL VCC = Min, IOH = -4.0mA  
Output HIGH Voltage -  
VCC = Min, IOH = -10µA  
CMOS  
VCC - 0.3  
V
Output LOW Voltage - TTL  
VCC = Min, IOL = 16mA  
0.5  
0.15  
VCC + 0.3  
0.8  
V
Output LOW Voltage -  
CMOS  
VOLC  
VIH  
VCC = Min, IOL = -10µA  
V
Input HIGH Level  
2.0  
V
VIL  
Input LOW Level  
-0.3  
V
IIL  
Input Leakage Current  
Output Leakage Current  
±10  
±10  
-120  
80  
µA  
µA  
mA  
V
CC = Max, GND VIN VCC  
IOZ  
I/O = High-Z, GND VO VCC  
Output Short Circuit  
Current4  
ISC  
VCC = 5V, VO = 0.5V, TA= 25°C  
-30  
3,11  
VIN = 0V or VCC  
-15  
ICC  
VCC Current  
f = 25MHz  
55 (typ.)18  
mA  
11  
All outputs disabled4  
I-15  
90  
7
CIN  
Input Capacitance5  
Output Capacitance5  
6
pF  
pF  
TA = 25°C, VCC = 5.0V @ f = 1 MHz  
7
COUT  
12  
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Table 4. A.C Electrical Characteristics Combinatorial  
Over the Operating Range  
-15/I-15  
Symbol  
Parameter6,12  
Unit  
Min  
Max  
Propagation delay Internal (tAL + tLC  
)
Propagation delay External (tIA + tAL +tLC + tLO  
Input or I/O pin to array input  
10  
15  
2
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
t
PDI  
)
t
PDX  
t
IA  
Array input to LCC  
9
1
3
3
t
t
t
AL  
LC  
LO  
LCC input to LCC output10  
LCC output to output pin  
Output Disable, Enable from LCC output7  
Output Disable, Enable from input pin7  
t
, t  
OD OE  
15  
t
OX  
This device has been designed and tested for the recommended operating conditions. Proper operation outside of these  
levels is not guaranteed. Exposure to absolute maximum ratings may cause permanent damage  
Figure 14. Combinatorial Timing - Waveforms and Block Diagram  
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Table 5. A.C. Electrical Characteristics Sequential  
-15/I-15  
Symbol  
Parameter6,1  
Unit  
Min  
6
Max  
Internal set-up to system clock8 - LCC14  
ns  
t
SCI  
(tAL + tSK + tLC - tCK  
Input16 (EXT.) set-up to system clock, - LCC (tIA + tSCI  
System-clock to Array Int. - LCC/IOC/INC14 (tCK +tLC  
)
)
8
ns  
ns  
t
t
t
t
t
t
t
t
t
t
t
t
t
t
f
f
f
f
f
t
t
t
t
t
t
t
t
SCX  
COI  
COX  
HX  
)
8
System-clock to Output Ext. - LCC (tCOI + tLO  
Input hold time from system clock - LCC  
LCC Input set-up to async. clock13 - LCC  
Clock at LCC or IOC - LCC output  
LCC input hold time from system clock - LCC  
Input set-up to system clock - IOC/INC14 (tSK - tCK  
)
12  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
MHz  
MHz  
MHz  
MHz  
MHz  
ns  
0
3
1
4
0
4
SK  
AK  
HK  
)
SI  
Input hold time from system clock - IOC/INC (tSK - tCK  
)
HI  
Array input to IOC PCLK clock  
6
7
PK  
Input set-up to PCLK clock17 - IOC/INC (tSK-tPK-tIA)  
0
5
SPI  
Input hold from PCLK clock17 - IOC/INC (tPK+tIA-tSK  
System-clock delay to LCC/IOC/INC  
)
HPI  
CK  
System-clock low or high pulse width  
Max. system-clock frequency Int/Int 1/(tSCI + tCOI  
Max. system-clock frequency Ext/Int 1/(tSCX + tCOI  
Max. system-clock frequency Int/Ext 1/(tSCI + tCOX  
Max. system-clock frequency Ext/Ext 1/(tSCX + tCOX  
Max. system-clock toggle frequency 1/(tCW + tCW  
LCC presents/reset to LCC output  
Input to Global Cell present/reset (tIA + tAL + tPR  
Asynch. preset/reset pulse width  
Input to LCC Reg-Type (RT)  
7
CW  
MAX1  
MAX2  
MAX3  
MAX4  
TGL  
PR  
)
71.4  
62.5  
55.5  
50.0  
71.4  
1
)
)
)
9
)
)
12  
ns  
ns  
ns  
ns  
ns  
ns  
µs  
ST  
8
AW  
6
1
7
RT  
LCC Reg-Type to LCC output register change  
Input to Global Cell register-type change (tRT + tRTV  
RTV  
RTC  
RW  
RESET  
)
Asynch. Reg-Type pulse width  
10  
Power-on reset time for registers in clear state2  
5
Anachip Corp.  
www.anachip.com.tw  
Rev. 1.0 Dec 16, 2004  
8/10  
To find out if the package you need is  
available, contact Customer Service  
Figure 15. Sequential Timing – Waveforms and Block Diagram  
Notes  
1. Minimum DC input is -0.5V, however inputs may under-shoot to -2.0V  
for periods less than 20ns.  
12. Test loads are specified in Section 5 of the Products Data Book  
(1999/2000).  
2.Test points for Clock and VCC in tR,tF,tCL,tCH, and tRESET are referenced at  
10% and 90% levels.  
13. “Async. Clock” refers to the clock from the Sum term (OR gate).  
14. The “LCC” term indicates that the timing parameter is applied to the  
LCC register. The “LCC/IOC” term indicates that the timing  
parameter is applied to both the LCC and IOC registers.  
16. The term “input” without any reference to another term refers to an  
(external) input pin.  
3. I/O pins are 0V or VCC.  
4. Test one output at a time for a duration of less than 1 sec.  
5. Capacitances are tested on a sample basis.  
6. Test conditions assume: signal transition times of 5ns or less from the  
10% and 90% points, timing reference levels of 1.5V (unless  
otherwise specified).  
17. The parameter t  
indicates that the PCLK signal to the IOC register  
SPI  
is always slower than the data from the pin or input by the absolute  
7. tOE is measured from input transition to VREF ±0.1V (See test loads at  
end of Section 6 for VREF value). tOD is measured from input transition  
to VOH -0.1V or VOL +0.1V.  
value of (t -t -t ). This means that no set-up time for the data  
SK PK IA  
from the pin or input is required, i.e. the external data and clock can  
be sent to the device simultaneously. Additionally, the data from the  
8. DIP: “System-clock” refers to pin 1/13 high speed clocks. PLCC: “Sys-  
tem-clock” refers to pin 2/16 high speed clocks.  
pin must remain stable for t  
arrive at the IOC register.  
time, i.e. to wait for the PCLK signal to  
HPI  
9. For T or JK registers in toggle (divide by 2) operation only.  
10. For combinatorial and async-clock to LCC output delay.  
11. ICC for a typical application: This parameter is tested with the device  
programmed as a 10-bit D-type counter.  
18. Typical (typ) ICC is measured at T = 25° C, freq = 25MHZ, V  
=
CC  
A
5V  
Anachip Corp.  
www.anachip.com.tw  
Rev. 1.0 Dec 16, 2004  
9/10  
To find out if the package you need is  
available, contact Customer Service  
Table 6. Ordering Information  
Part Number  
Speed  
Temperature  
Package  
P24  
PA7540P-15 (L)  
PA7540J-15 (L)  
PA7540JN-15 (L)  
PA7540S-15 (L)  
PA7540PI-15 (L)  
PA7540JI-15 (L)  
PA7540JNI-15 (L)  
PA7540SI-15 (L)  
J28  
JN28  
S24  
P24  
J28  
JN28  
S24  
10/15ns  
C
10/15ns  
I
Figure 16. Part Number  
Device  
Suffix  
PA7540J-15X  
Lead Free  
L : Lead Free Package  
Blank : Normal  
Package  
P = 300mil DIP  
J = Plastic (J) Leaded Chip Carrier (PLCC)  
JN = PLCC Alternate Pin Out  
Speed  
-15 = 10ns/15ns tpd/tpdx  
S = SOIC 300 mil Gullwing  
Temperature Range  
(Blank) = Commercial 0 to 70oC  
I = Industrial -40 to +85oC  
Anachip Corp.  
Head Office,  
Anachip USA  
2F, No. 24-2, Industry E. Rd. IV, Science-Based  
Industrial Park, Hsinchu, 300, Taiwan  
Tel: +886-3-5678234  
780 Montague Expressway, #201  
San Jose, CA 95131  
Tel: (408) 321-9600  
Fax: (408) 321-9696  
Fax: +886-3-5678368  
Email: sales_usa@anachip.com  
Website: http://www.anachip.com  
©2004 Anachip Corp.  
Anachip reserves the right to make changes in specifications at any time and without notice. The information furnished by  
Anachip in this publication is believed to be accurate and reliable. However, there is no responsibility assumed by Anachip  
for its use nor for any infringements of patents or other rights of third parties resulting from its use. No license is granted  
under any patents or patent rights of Anachip. Anachip’s products are not authorized for use as critical components in life  
support devices or systems.  
Marks bearing © or ™ are registered trademarks and trademarks of Anachip Corp.  
Anachip Corp.  
www.anachip.com.tw  
Rev. 1.0 Dec 16, 2004  
10/10  

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