SNJ54LS377FK

Flip Flops Overview

The SNJ54LS377FK is an octal D-type flip-flop with enable, manufactured by Texas Instruments. It features single-rail outputs and operates within a military-grade temperature range of -55°C to 125°C. The device utilizes a 20-lead LCCC package. It belongs to the LS TTL logic family, providing high-speed switching capabilities suitable for demanding industrial and aerospace applications requiring reliable data storage and transfer.

Flip Flops Feature Summary

• Octal configuration containing eight D-type flip-flops with enable functionality
• Military-grade reliability rated for extreme temperature environments
• Single-rail output structure for simplified interfacing

Flip Flops Applications

• Aerospace data acquisition systems
• Industrial control logic storage
• Military communication equipment registers

Flip Flops Procurement Notes

Verify the specific suffix FK indicates the 20-lead LCCC ceramic package variant. Confirm military qualification status if required for your application. Ensure compatibility with LS TTL voltage levels and input requirements. Check for RoHS compliance status as legacy military parts may have different regulatory classifications. Validate supplier authenticity due to the specialized nature of this component.

Flip Flops Selection Notes

Select this component when an octal register with enable is needed in harsh environments. Compare against SN54LS378 for hex configurations or SN54LS379 for quad setups. Consider power consumption differences compared to standard TTL families. Ensure board space accommodates the LCCC footprint. Verify signal integrity requirements match LS TTL specifications.

Flip Flops Part Context

This part belongs to the SN54 series, denoting military-grade performance standards. It is part of the broader LS37x family of D-type flip-flops. The 'FK' suffix specifically identifies the leadless ceramic chip carrier package type. This distinguishes it from plastic DIP or other packaging options available in the same logical function family.

Flip Flops Replacement Considerations

SN54LS377 is the commercial grade equivalent with identical logic but lower temperature rating. SN54LS378 offers six flip-flops in a similar package. SN54LS379 provides four flip-flops. Verify pinout compatibility before substitution. Package dimensions differ between LCCC and DIP variants.