TIBPAL16L8-20MFKB

Overview

The TIBPAL16L8-20MFKB is a high-performance Impact PAL circuit from Texas Instruments, characterized for military temperature ranges (-55°C to 125°C). It features a maximum propagation delay of 20 ns and a maximum operating frequency of 41.6 MHz. The device operates on a 5 V supply (4.5 V to 5.5 V) with typical current consumption of 190 mA. It utilizes titanium-tungsten fuses for programmability.

Feature Summary

• High-speed logic implementation using Advanced Low-Power Schottky technology
• Military-grade reliability across full extended temperature range
• Power-up clear feature ensures registers initialize to a known state

Applications

• Complex gate replacement in digital systems
• State machine implementation requiring reliable initialization
• Address decoding and control logic in harsh environments

Procurement Notes

Verify the specific package variant, as the FK suffix denotes a ceramic chip carrier. Confirm that the military grade designation aligns with environmental requirements. Check current production status, as legacy PLDs may have limited availability or require alternative sourcing strategies for long-term support.

Selection Notes

Select this component when standard TTL logic density is insufficient but FPGA complexity is unnecessary. Ensure the design accommodates the 20 ns propagation delay and 41.6 MHz clock limit. Verify that the 5 V supply voltage matches the system power rails and that the ceramic package fits the mechanical constraints.

Part Context

This device belongs to the TIBPAL16L8 family, offering functional equivalence to older PAL16L8A devices but with improved speed and lower power consumption. It represents a mature technology platform designed for robust, single-chip logic solutions where reprogrammability is not required after initial fabrication.

Replacement Considerations

Direct replacements include other TIBPAL16L8 variants with different suffixes indicating package type or speed grade, such as TIBPAL16L8-15C for commercial temperature ranges. Cross-reference with PAL16L8A for pin-compatible legacy designs, noting the performance improvements in the Impact series.