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
Simplifies Testing
Package Options Include Both Plastic and
Ceramic Chip Carriers in Addition to Plastic
and Ceramic DIPs

description
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.
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.