TIBPAL20L8-5CNT

Overview

The TIBPAL20L8-5CNT is a high-performance Impact-X PAL circuit from Texas Instruments, classified as a Simple Programmable Logic Device (SPLD). It features a maximum operating frequency of 125 MHz and a typical propagation delay of 5 ns. The device operates within a supply voltage range of 4.75 V to 5 V and supports through-hole installation in a PDIP-24 package. It functions reliably across an extended temperature range from 0°C to +75°C.

Feature Summary

• High-speed logic processing with 5 ns propagation delay
• Impact-X architecture for enhanced reliability
• TTL-level compatibility for standard digital interfaces

Applications

• Complex gate replacement in digital logic circuits
• Address decoding systems
• Bus arbitration logic implementation
• State machine design for control applications

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verification of current availability requires direct consultation with authorized distributors or surplus suppliers. Sourcing should prioritize verified legacy stock to ensure authenticity and proper storage conditions, as no new production units are manufactured.

Selection Notes

Select this part when a fast, low-pin-count PAL solution is required for TTL-compatible designs. The 5 ns speed grade suits high-frequency applications compared to slower variants. Ensure the design accommodates the specific pinout of the PDIP-24 package and validates power requirements against the 5 V nominal supply specification.

Part Context

Part of the TIBPAL20L series, this device belongs to Texas Instruments' Impact-X family of programmable logic devices. It offers a balance of speed and density for general-purpose logic integration. The series provides a drop-in replacement option for older discrete logic designs requiring simplified programming and higher performance.

Replacement Considerations

Verify pin-to-pin compatibility with existing designs before substitution. Check if alternative SPLDs from other manufacturers meet the 5 ns delay requirement. Confirm that the target application does not require registered outputs, as this variant provides combinational logic only.