TIBPAL16R8-7MJB

Overview

The TIBPAL16R8-7MJB is a high-performance Impact-X PAL circuit from Texas Instruments, characterized for military temperature ranges (-55°C to 125°C). It features an 8-input, 8-output registered architecture with 3-state buffers. Key electrical parameters include a minimum fmax of 100 MHz without feedback and 74 MHz with external feedback. The CLK-to-Q propagation delay is 6.5 ns max. It operates on a 5V supply (4.5V–5.5V) and includes power-up clear functionality for registers. The device utilizes titanium-tungsten fuses for programming.

Feature Summary

• Military-grade operation over -55°C to 125°C
• High-speed performance: 100 MHz min fmax (no feedback)
• Registered outputs with 3-state capability
• Power-up clear feature simplifies state initialization

Applications

• Military aerospace systems requiring wide temperature tolerance
• High-speed synchronous logic designs
• Complex state machine implementations
• Counter circuits using internal feedback

Procurement Notes

Verify the 'JB' suffix against official TI documentation, as the provided datasheet lists 'M' suffixes for military grade devices in J or FK packages. Confirm package type compatibility. Note that this product line is marked obsolete; ensure availability through authorized channels or secondary markets if required for production.

Selection Notes

Select this component when military temperature range (-55°C to 125°C) is mandatory. Compare against the -5C series if commercial temperature range suffices, as the -5C offers higher speed (125 MHz). Ensure design accounts for 3-state output control via OE pin and preload capabilities for testing.

Part Context

Part of the TIBPAL16R' series within the IMPACT-X family. Combines Advanced Low-Power Schottky technology with titanium-tungsten fuses. Functionally equivalent to earlier 20-pin PLDs but with improved speed. Covered by US Patent 4,410,987.

Replacement Considerations

No direct public substitute part numbers are listed in the provided datasheet. Consider legacy AMD PAL16R8 equivalents if functional parity is sufficient, though speed and temperature specs may differ. Verify pinout compatibility carefully.