TIBPAL20L8-5C Datasheet, PDF (1/35 Pages) Texas Instruments – HIGH-PERFORMANCE IMPACT-X PAL CIRCUITS

TIBPAL20L8-5C, TIBPAL20R4-5C, TIBPAL20R6-5C, TIBPAL20R8-5C
TIBPAL20L8-7M, TIBPAL20R4-7M, TIBPAL20R6-7M, TIBPAL20R8-7M
HIGH-PERFORMANCE IMPACT-X ™ PAL® CIRCUITS
SRPS010F – D3353, OCTOBER 1989 – REVISED SEPTEMBER 1992
• High-Performance Operation:
f_max (no feedback)
TIBPAL20R’ -5C Series . . . 125 MHz Min
TIBPAL20R’ -7M Series . . . 100 MHz Min
f_max (internal feedback)
TIBPAL20R’ -5C Series . . . 125 MHz Min
TIBPAL20R’ -7M Series . . . 100 MHz Min
f_max (external feedback)
TIBPAL20R’ -5C Series . . . 117 MHz Min
TIBPAL20R’ -7M Series . . . 74 MHz Min
Propagation Delay
TIBPAL20L8-5C Series . . . 5 ns Max
TIBPAL20L8-7M Series . . . 7 ns Max
TIBPAL20R’ -5C Series
(CLK-to-Q) . . . 4 ns Max
TIBPAL20R’ -7M Series
(CLK-to-Q) . . . 6.5 ns Max
• Functionally Equivalent, but Faster Than,
Existing 24-Pin PLDs
• Preload Capability on Output Registers
Simplifies Testing
• Power-Up Clear on Registered Devices (All
Register Outputs are Set Low, but Voltage
Levels at the Output Pins Go High)
• Package Options Include Both Plastic and
Ceramic Chip Carriers in Addition to Plastic
and Ceramic DIPs
• Security Fuse Prevents Duplication
DEVICE
I
3-STATE
INPUTS O OUTPUTS
PAL20L8
14
2
PAL20R4
12
0
PAL20R6
12
0
PAL20R8
12
0
REGISTERED
Q OUTPUTS
0
4 (3-state buffers)
6 (3-state buffers)
8 (3-state buffers)
I/O
PORT
S
6
4
2
0
description
TIBPAL20L8’
C SUFFIX . . . JT OR NT PACKAGE
M SUFFIX . . . JT PACKAGE
(TOP VIEW)
I₁
I₂
I₃
I₄
I₅
I₆
I7
I8
I9
I 10
I 11
GND 12
24 ^V_CC
23 ^I
22 ^O
21 ^I/O
20 ^I/O
19 ^I/O
18 I/O
17 I/O
16 I/O
15 O
14 I
13 I
TIBPAL20L8’
C SUFFIX . . . FN PACKAGE
M SUFFIX . . . FK PACKAGE
(TOP VIEW)
4 3 2 1 28 27 26
I⁵
25 I/O
I⁶
24 I/O
I⁷
23 I/O
NC ⁸
22 NC
I⁹
21 I/O
I ¹⁰
20 I/O
I ¹¹
19 I/O
12 13 14 15 16 17 18
NC – No internal connection
Pin assignments in operating mode
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.
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.
This document contains information on products in more than one
phase of development. The status of each device is indicated on the
page(s) specifying its electrical characteristics.
Copyright © 1992, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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