TIBPAL16L8-25CFN

Overview

The TIBPAL16L8-25CFN is a low-power, high-performance Impact-X PAL circuit manufactured by Texas Instruments. It features 10 dedicated inputs and 6 I/O ports with combinatorial outputs. The device utilizes Advanced Low-Power Schottky technology and titanium-tungsten fuses for reliable programmability. It operates within a 4.75 V to 5.25 V supply range and supports a maximum clock frequency of 30 MHz. The 'C' suffix indicates an operating temperature range of 0°C to 75°C, while the 'FN' suffix denotes a 20-pin Plastic Leadless Chip Carrier (PLCC) package.

Feature Summary

• High-speed operation with a maximum propagation delay of 25 ns from input to output.
• Functionally equivalent to but faster than legacy PAL16L8A devices.
• Combines Advanced Low-Power Schottky technology with titanium-tungsten fuse arrays.
• Available in a compact 20-pin PLCC package to reduce board space.

Applications

• Replacement for conventional TTL logic in digital systems.
• Design of custom combinational logic functions.
• Compact circuit board implementations requiring reduced footprint.

Procurement Notes

Verify the device status as LIFEBUY, indicating discontinuation with a limited lifetime-buy period available. Confirm that the FN suffix corresponds to the 20-pin PLCC package and the C suffix matches the 0°C to 75°C commercial temperature grade. Ensure programming equipment supports titanium-tungsten fuse architectures prior to acquisition.

Selection Notes

Select this component when a direct replacement for PAL16L8A is required with improved speed. The 25 ns delay suits applications needing faster switching than standard PALs. Verify that the system voltage remains within the 4.75 V to 5.25 V range. Consider the PLCC package constraints if surface-mount assembly is necessary.

Part Context

This part belongs to the TIBPAL16L8 series of Impact-X PAL circuits. It shares architectural similarities with registered variants like TIBPAL16R4 but provides purely combinatorial outputs. The series is designed to offer dependable quality and reliability through Texas Instruments manufacturing processes.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Designers should verify compatibility with existing PAL16L8A footprints and programming requirements before substitution.