SNJ54ALS373AFK

Overview

The SNJ54ALS373AFK is an octal transparent D-type latch featuring three-state outputs, manufactured by Texas Instruments. It belongs to the ALS logic series and utilizes a 20-pin LCCC package with dimensions of 8.89x8.89 mm. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a military-grade temperature range from -55°C to +125°C. Key electrical characteristics include a propagation delay of 16 ns, a low-level output current of 32 mA, and a high-level output current of -2.6 mA.

Feature Summary

• Octal transparent D-type latch architecture with tri-state outputs
• Military-grade operational capability across extended temperature ranges
• High-speed ALS logic performance with defined propagation delays

Applications

• Military aerospace data bus systems
• High-reliability industrial control interfaces
• Ruggedized computing memory buffering

Procurement Notes

Verify the specific suffix 'FK' against the official Texas Instruments datasheet to confirm the exact pinout and mechanical drawing for the 20-LCCC package. Ensure that the military grade qualification requirements align with project specifications before procurement. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability for critical applications.

Selection Notes

Select this component when designing systems requiring octal latching with tri-state capabilities in harsh environments. The ALS series offers a balance of speed and power consumption suitable for complex digital logic. Consider the 20-LCCC package for surface mount applications requiring robust thermal and mechanical stability under extreme conditions.

Part Context

This part is part of the SNJ54ALS373A family, which includes variants like the SN74ALS373AN and SN74ALS373ADWR. While commercial versions operate at lower temperatures, the SNJ54ALS373AFK is specifically designed for military specifications. It shares functional similarities with other octal latches but distinguishes itself through its extended environmental tolerance and specialized packaging.

Replacement Considerations

Direct replacements include SNJ54ALS373AJ.A in CDIP packages or SNJ54ALS373AFK in alternative LCCC configurations. Verify pin compatibility and thermal ratings when substituting with commercial grade parts like SN74ALS373ADWR, as they lack the required temperature range.