TIBPAL22VP10-20C_15 Datasheet, PDF (2/24 Pages) Texas Instruments – HIGH-PERFORMANCE IMPACT-X

Obsolete Device
TIBPAL22VP10-20C, TIBPAL22VP10-25M
HIGH-PERFORMANCE IMPACT-X ™ PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS013A − D2943, FEBRUARY 1987 − REVISED DECEMBER 2010
description (continued)
Circuit design is enhanced by the addition of a synchronous set and an asynchronous reset product term. These
functions are common to all registers. When the synchronous set product term is a logic 1, the output registers
are loaded with a logic 1 on the next low-to-high clock transition. When the asynchronous reset product term
is a logic 1, the output registers are loaded with a logic 0. The output logic level after set or reset depends on
the polarity selected during programming. Output registers can be preloaded to any desired state during testing.
Preloading permits full logical verification during product testing.
With features such as programmable output logic macrocells and variable product term distribution, the
TIBPAL22VP10’ offers quick design and development of custom LSI functions with complexities of 500 to 800
equivalent gates. Since each of the ten output pins may be individually configured as inputs on either a
temporary or permanent basis, functions requiring up to 21 inputs and a single output or down to 12 inputs and
10 outputs are possible.
A power-up clear function is supplied that forces all registered outputs to a predetermined state after power is
applied to the device. Registered outputs selected as active-low power-up with their outputs high. Registered
outputs selected as active-high power-up with their outputs low.
A single security fuse is provided on each device to discourage unauthorized copying of fuse patterns. Once
blown, the verification circuitry is disabled and all other fuses will appear to be open.
The TIBPAL22V10-20C is characterized for operation from 0°C to 75°C. The TIBPAL22V10-25M is
characterized for operation over the full military temperature range of −55°C to 125°C.
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