TIBPAL20L8-15C, TIBPAL20R4-15C, TIBPAL20R6-15C, TIBPAL20R8-15C
TIBPAL20L8-20M, TIBPAL20R4-20M, TIBPAL20R6-20M, TIBPAL20R8-20M
HIGH-PERFORMANCE IMPACT ™ PAL® CIRCUITS
SRPS021A − D2920, JUNE 1986 − REVISED DECEMBER 2010
• High-Performance: fmax (w/o feedback)
TIBPAL20R’ -15C Series . . . 45 MHz
TIBPAL20R’ -20M Series . . . 41.6 MHz
• High-Performance . . . 45 MHz Min
• Reduced ICC of 180 mA Max
• Functionally Equivalent, but Faster Than
PAL20L8, PAL20R4, PAL20R6, PAL20R8
• Power-Up Clear on Registered Devices (All
Register Outputs are Set Low, but Voltage
Levels at the Output Pins Go High)
• Preload Capability on Output Registers
• Package Options Include Both Plastic and
Ceramic Chip Carriers in Addition to Plastic
and Ceramic DIPs
4 (3-state buffers)
6 (3-state buffers)
8 (3-state buffers)
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.
C SUFFIX . . . JT OR NT PACKAGE
M SUFFIX . . . JT OR W PACKAGE
C SUFFIX . . . FN PACKAGE
M SUFFIX . . . FK PACKAGE
28 27 26
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
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.
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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily
include testing of all parameters.
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Copyright © 2010, Texas Instruments Incorporated