TIBPAL16R8-25CFN

Overview

The TIBPAL16R8-25CFN is a low-power high-performance IMPACT PAL programmable logic device in a 20-pin PLCC package. It features eight registered outputs and four I/O ports with three-state buffers. The maximum propagation delay is 25 ns, and the maximum clock frequency is 30 MHz. Operating voltage ranges from 4.75 V to 5.25 V.

Feature Summary

• Combines Advanced Low-Power Schottky technology with titanium-tungsten fuses for reliable performance.
• Provides power-up clear functionality where all register outputs initialize to a high state.
• Offers registered outputs alongside combinational I/O ports with three-state control.

Applications

• State machine implementation requiring synchronous initialization.
• High-speed decoding logic replacing conventional TTL circuits.
• Custom function design for compact circuit board layouts.
• Registered data buffering with output enable control.

Procurement Notes

Verify the specific suffix CFN corresponds to the Plastic Leadless Chip Carrier package. Confirm the operating temperature range matches the C suffix specification of 0°C to 75°C. Check current availability status as this component may be subject to lifetime buy or obsolescence notices.

Selection Notes

Select this device when eight registered outputs are required alongside four bidirectional I/O lines. Ensure the design utilizes a 5 V supply within the recommended operating conditions. Consider the M suffix variant if military temperature ratings are necessary instead of commercial grades.

Part Context

This component belongs to the Texas Instruments IMPACT-X PAL family, designed as functional equivalents to older PAL16R8A devices but with improved speed. The R8 designation indicates eight registered outputs. The device integrates programmable array logic with registered output stages controlled by a dedicated clock input.

Replacement Considerations

The TIBPAL16R8-25CN serves as a direct pin-compatible alternative in a PDIP package. For military temperature requirements, the TIBPAL16R8-30MFKB provides equivalent logic in a ceramic LCCC package. Verify that replacement packages maintain the same electrical characteristics and pinout configuration.