TIBPAL20R8-20MJT

Overview

The TIBPAL20R8-20MJT is a military-grade simple programmable logic device (PLD) manufactured by Texas Instruments. It utilizes PAL-type architecture with 20 inputs and 8 registered outputs, providing 64 product terms for complex logic implementation. The component operates at a maximum clock frequency of 20 MHz with a propagation delay of 20 ns. Designed for high reliability, it supports a wide operating temperature range from -55 °C to 125 °C and requires a nominal 5 V supply voltage. The device is housed in a 24-pin ceramic dual in-line package (CDIP), ensuring durability in harsh environments.

Feature Summary

• Military-grade qualification with extended temperature range (-55 °C to 125 °C)
• PAL-type architecture featuring 20 inputs and 8 registered outputs
• High-speed performance with 20 ns propagation delay and 20 MHz max clock frequency
• Robust 24-pin ceramic DIP packaging suitable for demanding applications

Applications

• Aerospace control systems requiring radiation tolerance and thermal stability
• Military communication equipment interface logic
• Avionics signal processing and decoding circuits
• Harsh environment industrial automation controllers

Part Context

This part belongs to the TIBPAL family of Texas Instruments, which extends the standard PAL series with enhanced specifications for military and aerospace use. Unlike commercial variants, the TIBPAL series undergoes stricter screening and testing protocols to ensure reliability under extreme conditions. The 'MJT' suffix indicates the specific military grade and ceramic package configuration, distinguishing it from plastic or commercial versions within the broader PAL lineage.

Replacement Considerations

Direct pin-to-pin replacements must match the military temperature rating and ceramic package. Verify that substitute parts maintain the same registered output configuration and 5V operation. Commercial equivalents like the PAL20R8 lack the required environmental robustness and may not be suitable for certified military applications without rigorous qualification.