TIBPAL20R8-5CNT

Overview

The TIBPAL20R8-5CNT is a Simple Programmable Logic Device (SPLD) from Texas Instruments, belonging to the Impact-X PAL circuit family. It features an architecture with 16 inputs and 8 registered outputs, housed in a 24-pin Plastic Dual In-Line Package (PDIP). The device operates within a voltage range of 4.75 V to 5.5 V and supports a maximum operating frequency of 125 MHz. Key electrical specifications include a maximum propagation delay of 5 ns and a typical supply current of 210 mA. The component is rated for commercial temperature ranges, typically spanning 0°C to +75°C.

Feature Summary

• High-performance Impact-X PAL architecture supporting up to 125 MHz operation
• Configurable logic array with 16 input pins and 8 registered output pins
• Standard 24-pin PDIP plastic package suitable for through-hole mounting
• Compatible with standard 5V TTL logic levels

Applications

• Digital state machine implementation
• Address decoding and chip select generation
• Bus protocol translation between different logic families
• General-purpose combinatorial and sequential logic replacement

Procurement Notes

Verify the specific suffix 'CNT' against the manufacturer's official documentation to confirm pinout compatibility and package dimensions. As this component belongs to legacy SPLD lines, availability may be limited; check for active manufacturing status or last-time-buy notices directly from Texas Instruments authorized channels before finalizing procurement plans.

Selection Notes

Select the TIBPAL20R8-5CNT when a design requires 16 inputs and 8 registered outputs with a 5 ns maximum delay. Ensure the application environment stays within the 0°C to +75°C commercial temperature range. For industrial requirements, verify if the -55°C to +125°C military grade variant (SNJ prefix) is necessary instead.

Part Context

This part is part of the TI PAL20L8/PAL20R8 family of high-speed programmable logic devices. These components were designed to replace fixed-function gate arrays in complex digital systems. The 'R' designation indicates registered outputs, providing flip-flop capabilities for synchronous designs, while the '5' denotes the 5 ns speed grade.

Replacement Considerations

Direct pin-compatible replacements include other PAL20R8 variants such as the Lattice GAL20V8B or Atmel GAL20V8C, provided the macrocell configuration matches the original design. Verify that the replacement device supports the required 125 MHz clock speed and 5V operation.