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TIBPAL20R4-7MJTB

更新时间： 2024-11-24 13:14:39
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德州仪器 - TI /
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TIBPAL20R4-7MJTB 数据手册

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TIBPAL20L8-7C, TIBPAL20R4-7C, TIBPAL20R6-7C, TIBPAL20R8-7C  
TIBPAL20L8-10M, TIBPAL20R4-10M, TIBPAL20R6-10M, TIBPAL20R8-10M  
HIGH-PERFORMANCE IMPACT-X PAL CIRCUITS  
SRPS005D – D3307, OCTOBER 1989 – REVISED NOVEMBER 1995  
TIBPAL20L8’  
C SUFFIX . . . JT OR NT PACKAGE  
M SUFFIX . . . JT PACKAGE  
•
High-Performance Operation:  
f
f
f
(no feedback)  
max  
TIBPAL20R’ -7C Series . . . 100 MHz  
TIBPAL20R’ -10M Series . . . 62.5 MHz  
(internal feedback)  
TIBPAL20R’ -7C Series . . . 100 MHz  
TIBPAL20R’ -10M Series . . . 62.5 MHz  
(TOP VIEW)  
I
I
I
I
I
I
I
I
V
I
O
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
O
max  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
CC  
2
3
(external feedback)  
max  
4
TIBPAL20R’ -7C Series . . . 74 MHz  
TIBPAL20R’ -10M Series . . . 50 MHz  
Propagation Delay  
5
6
7
TIBPAL20L8-7C Series . . . 7 ns Max  
TIBPAL20L8-10M Series . . . 10 ns Max  
8
I
I
I
9
10  
11  
12  
•
•
•
Functionally Equivalent, but Faster Than  
Existing 24-Pin PLD Circuits  
I
I
GND  
Preload Capability on Output Registers  
Simplifies Testing  
TIBPAL20L8’  
C SUFFIX . . . FN PACKAGE  
M SUFFIX . . . FK PACKAGE  
Power-Up Clear on Registered Devices (All  
Register Outputs are Set Low, but Voltage  
Levels at the Output Pins Go High)  
(TOP VIEW)  
•
Package Options Include Both Plastic and  
Ceramic Chip Carriers in Addition to Plastic  
and Ceramic DIPs  
4
3
2
1
28 27 26  
25  
5
I
I
I
I/O  
I/O  
I/O  
•
•
Security Fuse Prevents Duplication  
6
24  
23  
Dependable Texas Instruments Quality and  
Reliability  
7
8
NC  
22 NC  
21 I/O  
20 I/O  
19 I/O  
9
I
I
I
I/O  
PORT  
S
I
3-STATE  
REGISTERED  
Q OUTPUTS  
10  
11  
DEVICE  
INPUTS O OUTPUTS  
PAL20L8  
PAL20R4  
PAL20R6  
PAL20R8  
14  
12  
12  
12  
2
0
0
0
0
6
4
2
0
12 13 14 15 16 17 18  
4 (3-state buffers)  
6 (3-state buffers)  
8 (3-state buffers)  
NC – No internal connection  
Pin assignments in operating mode  
description  
These programmable array logic devices feature high speed and functional equivalency when compared with  
currently available devices. These IMPACT-X circuits combine the latest Advanced Low-Power Schottky  
technology with proven titanium-tungsten fuses to provide reliable, high-performance substitutes for  
conventional TTL logic. Their easy programmability allows for quick design of custom functions and typically  
results in a more compact circuit board. In addition, chip carriers are available for futher reduction in board  
space.  
Alloftheregisteroutputsaresettoalowlevelduringpower-up. Extracircuitryhasbeenprovidedtoallowloading  
of each register asynchronously to either a high or low state. This feature simplifies testing because the registers  
can be set to an initial state prior to executing the test sequence.  
The TIBPAL20’ C series is characterized from 0°C to 75°C. The TIBPAL20’ M series is characterized for  
operation over the full military temperature range of –55°C to 125°C.  
These devices are covered by U.S. Patent 4,410,987.  
IMPACT-X is a trademark of Texas Instruments Incorporated.  
PAL is a registered trademark of Advanced Micro Devices Inc.  
PRODUCTION DATA information is current as of publication date. Products  
Copyright 1995, Texas Instruments Incorporated  
conform to specifications per the terms of Texas Instruments standard  
warranty. Production processing does not necessarily include testing of all  
parameters.  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1
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