SNJ54ALS234J

Overview

The SNJ54ALS234J is an asynchronous FIFO memory integrated circuit manufactured by Texas Instruments. It features a storage capacity of 64 words by 4 bits (64x4). The device operates with a typical propagation delay of 24 nanoseconds, supporting high-speed data buffering applications in military and aerospace environments.

Feature Summary

• Asynchronous first-in-first-out memory architecture for independent clock domain interfacing
• Military-grade reliability suitable for harsh environmental conditions
• Compact ceramic dual in-line package design

Applications

• Data buffering between asynchronous logic systems
• High-speed digital signal processing interfaces
• Military and aerospace electronic systems

Procurement Notes

Verify the specific suffix 'J' indicates a ceramic dual in-line package variant. Confirm RoHS compliance status as historical military parts may not meet current environmental directives. Ensure compatibility with existing 5V logic levels and check for lead-free plating requirements if applicable to modern assembly processes.

Selection Notes

Select this component when asynchronous data buffering is required between different clock domains. The 64x4 depth provides moderate storage for temporary data holding. Verify that the 24ns speed meets system timing constraints and that the ceramic package fits the mechanical enclosure requirements.

Part Context

This part belongs to the ALS (Advanced Low-power Schottky) series, known for improved speed and power consumption compared to standard LS logic. The SNJ prefix typically denotes a military-grade qualification level, ensuring performance stability across extreme temperature ranges defined by MIL-STD specifications.

Replacement Considerations

Direct replacements include other SNJ54ALS234 variants with compatible packaging. Cross-reference with SN54ALS234 for commercial grade equivalents if military qualification is not strictly required. Verify pinout compatibility before substitution.