TIBPALT19R4CNT

Overview

The TIBPALT19R4CNT is a complex programmable logic device (CPLD) manufactured by Texas Instruments, belonging to the PAL-type architecture family. It features 16 inputs and 8 outputs within a 24-pin plastic dual in-line package (DIP). The device operates on a nominal 5 V supply voltage and supports a maximum clock frequency of 25 MHz with a propagation delay of 25 ns. Designed for TTL logic compatibility, it includes 64 product terms for logic implementation. The component is rated for operation up to a maximum temperature of 70 °C.

Feature Summary

• PAL-type CPLD architecture with 16 inputs and 8 outputs
• 25 ns propagation delay supporting 25 MHz clock speeds
• TTL-compatible logic levels with 5 V nominal supply
• 24-pin DIP plastic package for through-hole mounting

Applications

• Digital logic replacement for legacy TTL circuits
• Address decoding and chip select generation
• Simple state machine implementation
• Bus protocol conversion interfaces

Procurement Notes

Verify RoHS compliance status as the source data indicates non-compliance. Confirm the specific suffix CNT corresponds to the required 24-pin DIP plastic package variant. Ensure the 5 V operating voltage aligns with the target system design constraints before procurement.

Selection Notes

Select this component when a simple PLD structure with registered outputs is required for low-speed digital logic applications. Compare against standard GAL devices if lower cost is prioritized over speed. Verify that the 25 ns delay meets the timing requirements of the destination circuitry.

Part Context

This part belongs to the TI PAL series of programmable logic devices, serving as a bridge between fixed logic gates and more complex FPGAs. It is designed for straightforward logic synthesis using standard hardware description languages or schematic capture tools compatible with PAL architectures.

Replacement Considerations

Direct pin-to-pin replacements may include other PAL-type devices from the same TI family with identical I/O counts and package styles. Verify electrical parameters such as propagation delay and supply current when substituting with generic PAL components.