TIBPAL16R6-7CN

Overview

The TIBPAL16R6-7CN is a high-performance IMPACT-X PAL programmable logic device featuring Advanced Low-Power Schottky technology. It provides eight dedicated inputs, two I/O ports, and six registered outputs with three-state buffers. The device operates within a 0°C to 75°C temperature range at a nominal 5V supply. Key electrical parameters include a maximum propagation delay of 7 ns for registered outputs and a minimum fmax of 100 MHz without feedback.

Feature Summary

• Preload capability on output registers simplifies testing by allowing initial state setting.
• Power-up clear feature resets all register outputs to a low level upon initialization.
• Security fuse prevents unauthorized duplication of the programmed logic function.

Applications

• High-speed counter designs utilizing internal feedback configurations.
• State-machine implementations requiring external feedback loops.
• Custom logic replacement in compact circuit board designs.

Procurement Notes

This component is obsolete and no longer available from Texas Instruments. Verification of authenticity is critical when sourcing from secondary markets. Ensure the device matches the original specifications and package type. Check for valid programming data if used as a replacement. Confirm compliance with current environmental regulations such as RoHS standards before integration.

Selection Notes

Select this device for applications requiring fast switching speeds and registered outputs with three-state control. The 20-pin DIP package suits through-hole mounting. Consider the -7C suffix for commercial temperature ranges. Verify that the eight inputs and six registered outputs meet the specific logic density requirements of the design.

Part Context

Part of the TIBPAL16 series, which includes variants like TIBPAL16L8, TIBPAL16R4, and TIBPAL16R8. These devices share the same IMPACT-X architecture but differ in output configuration and pinout. The R6 variant specifically balances input and registered output counts for versatile logic implementation.

Replacement Considerations

No direct public substitutes are confirmed. Designers may need to adapt existing schematics or use modern CPLDs/FPGAs. If replacing, verify pin compatibility and logic equivalence. Consult authorized distributors for obsolete product availability or equivalent legacy parts.

FAQ

What is the purpose of the preload feature?

The preload feature allows output registers to be set to a desired state during testing, simplifying the verification process without stepping through the entire state-machine sequence.

How does the power-up reset function work?

Upon power-up, all registers are reset to zero. This ensures a known initial state, provided the VCC rise is monotonic and setup times are met before the first clock transition.

What is the maximum operating frequency?

The TIBPAL16R6-7C series has a minimum fmax of 100 MHz without feedback and with internal feedback, and 74 MHz with external feedback.