TIBPAL16R6-15CN

Overview

The TIBPAL16R6-15CN is a high-performance IMPACT PAL programmable logic device featuring Advanced Low-Power Schottky technology. It provides 8 dedicated inputs, 2 dedicated outputs, and 2 I/O ports with registered outputs. The 'C' suffix indicates a maximum propagation delay of 15 ns and an operating temperature range of 0°C to 75°C. It utilizes titanium-tungsten fuses for reliable programming.

Feature Summary

• High-speed operation using Advanced Low-Power Schottky technology
• Power-up clear feature sets all register outputs high upon initialization
• Functionally equivalent but faster than legacy PAL16R6A devices
• Available in plastic DIP packages for through-hole mounting

Applications

• State machine implementation requiring registered outputs
• Decoding logic for address buses or control signals
• Replacement for obsolete standard TTL logic families
• Custom combinatorial and sequential circuit design

Procurement Notes

Verify the specific package marking and date code when sourcing this component, as it may be classified as obsolete or not recommended for new designs depending on the manufacturing lot. Confirm RoHS compliance status for the specific batch, as older production runs may differ from current environmental standards. Ensure the supplier provides valid traceability documentation for critical applications.

Selection Notes

Select the TIBPAL16R6-15CN when registered outputs are required for eight inputs and two dedicated outputs within a 20-pin DIP package. Choose the 'C' suffix for commercial temperature ranges (0°C to 75°C) and 15 ns speed. Consider the 'M' suffix if military temperature ratings (-55°C to 125°C) are necessary, noting that registered variants like the R6 series are generally not recommended for new designs.

Part Context

This device belongs to the Texas Instruments IMPACT PAL family, designed to replace older PAL16L8, PAL16R4, PAL16R6, and PAL16R8 circuits. The IMPACT series combines high performance with low power consumption. The TIBPAL16R6 variant specifically offers six registered output macrocells distributed across the I/O pins, providing timing control for synchronous digital systems.

Replacement Considerations

The datasheet explicitly states that registered variants such as the TIBPAL16R6-20M are not recommended for new designs. While the TIBPAL16R6-15CN shares functional equivalence with the PAL16R6A, designers should evaluate modern SPLD alternatives for new projects due to potential obsolescence and limited future availability of this specific legacy part.