SNJ54ALS374AFK

Flip Flops Overview

The SNJ54ALS374AFK is an octal edge-triggered D-type flip-flop featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum operating frequency of 60 MHz. The device utilizes Advanced Low-Power Schottky (ALS) technology, ensuring low power consumption while maintaining high-speed performance. It is housed in a 20-lead Ceramic Quad Flat Package (LCCC) with a length of 8.89 mm. The component is rated for military-grade operation across an extended temperature range from -55°C to +125°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops with edge-triggered data latching capabilities.
• Three-state outputs allow direct connection to system buses without additional pull-up or pull-down resistors.
• Advanced Low-Power Schottky (ALS) logic family ensures reduced power dissipation compared to standard LS series.
• Military-grade reliability certified for operation in extreme environmental conditions ranging from -55°C to +125°C.

Flip Flops Applications

• High-reliability military aerospace data bus interfaces requiring radiation tolerance and wide temperature stability.
• Industrial control systems demanding robust logic storage under harsh thermal and electrical stress.
• Defense communication equipment utilizing octal data registers for signal processing and buffering.
• Spacecraft avionics subsystems requiring certified ceramic packaging and extended operational lifespans.

Flip Flops Procurement Notes

Verify the specific suffix 'FK' against the manufacturer's official datasheet to confirm package dimensions and pinout compatibility. Ensure procurement channels provide traceability documentation required for military specifications. Confirm that the ceramic LCCC package matches the target PCB footprint exactly. Validate that the supplier can provide necessary quality certifications for defense-grade components.

Flip Flops Selection Notes

Select this component when designing systems requiring octal data storage with high noise immunity and low power consumption. The ALS technology offers a balance between speed and power efficiency suitable for battery-constrained or thermally sensitive applications. The ceramic package provides superior mechanical strength and thermal conductivity compared to plastic alternatives. Consider the extended temperature range if the application environment exceeds standard commercial limits.

Flip Flops Part Context

This part belongs to the SN54/74ALS374 family of octal D-type flip-flops. The SNJ prefix indicates a military-grade device with strict manufacturing controls. The ALS series represents an evolution from standard LS logic, offering faster switching speeds with comparable power usage. This family is widely used in digital systems requiring reliable data retention and bus interfacing capabilities.

Flip Flops Replacement Considerations

SN54ALS374J: Alternative ceramic DIP package variant with identical electrical characteristics. SN54ALS374E: Alternative ceramic LLCC package variant. SN54ALS374W: Alternative ceramic flat package variant. Verify pinout compatibility before substitution.