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TIBPAL20R4-15C PDF预览

TIBPAL20R4-15C

更新时间： 2024-11-02 22:08:11
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
17页 185K
描述
HIGH-PERFORMANCE IMPACT E PAL CIRCUITS

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TIBPAL20R4-15C 数据手册

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TIBPAL20L8-15C, TIBPAL20R4-15C, TIBPAL20R6-15C, TIBPAL20R8-15C  
TIBPAL20L8-20M, TIBPAL20R4-20M, TIBPAL20R6-20M, TIBPAL20R8-20M  
HIGH-PERFORMANCE IMPACT PAL CIRCUITS  
SRPS021 – D2920, JUNE 1986 – REVISED AUGUST 1989  
TIBPAL20L8’  
C SUFFIX . . . JT OR NT PACKAGE  
M SUFFIX . . . JT OR W PACKAGE  
•
High-Performance: f  
(w/o feedback)  
max  
TIBPAL20R’ -15C Series . . . 45 MHz  
TIBPAL20R’ -20M Series . . . 41.6 MHz  
(TOP VIEW)  
•
•
•
High-Performance . . . 45 MHz Min  
I
I
I
I
I
I
I
I
V
I
O
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
O
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
CC  
Reduced I  
of 180 mA Max  
CC  
2
3
Functionally Equivalent, but Faster Than  
PAL20L8, PAL20R4, PAL20R6, PAL20R8  
4
5
•
Power-Up Clear on Registered Devices (All  
Register Outputs are Set Low, but Voltage  
Levels at the Output Pins Go High)  
6
7
8
I
I
I
9
•
•
Preload Capability on Output Registers  
Simplifies Testing  
10  
11  
12  
I
I
Package Options Include Both Plastic and  
Ceramic Chip Carriers in Addition to Plastic  
and Ceramic DIPs  
GND  
TIBPAL20L8’  
C SUFFIX . . . FN PACKAGE  
M SUFFIX . . . FK PACKAGE  
I/O  
PORT  
S
I
3-STATE  
REGISTERED  
Q OUTPUTS  
DEVICE  
INPUTS O OUTPUTS  
(TOP VIEW)  
PAL20L8  
PAL20R4  
PAL20R6  
PAL20R8  
14  
12  
12  
12  
2
0
0
0
0
6
4
2
0
4 (3-state buffers)  
6 (3-state buffers)  
8 (3-state buffers)  
4
3
2
1
28 27 26  
25  
5
I
I
I
I/O  
I/O  
I/O  
description  
6
24  
23  
7
These programmable array logic devices feature  
high speed and functional equivalency when  
compared with currently available devices. These  
IMPACT 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.  
8
NC  
22 NC  
21 I/O  
20 I/O  
19 I/O  
9
I
I
I
10  
11  
12 13 14 15 16 17 18  
NC – No internal connection  
Pin assignments in operating mode  
Extra circuitry has been provided to allow loading 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 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.  
Copyright 1989, Texas Instruments Incorporated  
Products 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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