SNJ54LS74AJ

Flip Flops Overview

The SNJ54LS74AJ is a dual D-type flip-flop from the Texas Instruments SN54LS74A series, housed in a 14-lead ceramic dual-in-line package (CDIP). It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 33 MHz. The device features positive-edge triggering with independent set and clear inputs, providing both true and complement outputs. It is designed for military-grade reliability, functioning across an extended temperature range of -55°C to 125°C.

Flip Flops Feature Summary

• Dual D-type flip-flops with positive-edge triggering
• Independent asynchronous set and clear inputs
• Military-grade ceramic packaging for harsh environments

Flip Flops Applications

• Military aerospace data processing systems
• High-reliability industrial control logic
• Harsh environment signal storage applications

Flip Flops Procurement Notes

Verify that the component matches the specific SNJ54LS74AJ part number, ensuring the 'SNJ' prefix indicates the correct military-grade ceramic variant rather than commercial plastic packages. Confirm RoHS compliance status as required by project specifications, noting that older military parts may have different regulatory classifications. Validate authenticity through authorized distributors or direct manufacturer channels to avoid counterfeit components.

Flip Flops Selection Notes

Select this component when high reliability and wide temperature operation are critical requirements. The SNJ54LS74AJ is suitable for designs requiring robust performance in extreme conditions where standard commercial logic devices would fail. Consider the physical size and mounting requirements of the CDIP package during PCB layout to ensure proper integration into the target system architecture.

Flip Flops Part Context

This device belongs to the SN54LS74A family, which provides dual D-type flip-flops with set and clear functions. The SNJ54LS74AJ specifically denotes the military-grade version manufactured in a hermetically sealed ceramic package, offering superior protection against moisture and mechanical stress compared to standard plastic variants.

Flip Flops Replacement Considerations

The SNJ54LS74AD serves as a commercial equivalent in a plastic DIP package. For direct military-grade replacements, verify availability of other SNJ-prefixed variants within the same LS logic family.