SN54LS377J

Flip Flops Overview

The SN54LS377J is an octal D-type flip-flop manufactured by Texas Instruments, belonging to the SN54LSxx series. It features positive-edge triggering and non-inverting outputs. The device is housed in a 20-lead ceramic dual in-line package (CDIP). It operates within a supply voltage range of 4.75V to 5.25V. The component supports a maximum clock frequency of 40 MHz. Propagation delay is specified at 27 ns under standard conditions. The unit functions 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 positive-edge triggering for sequential data storage.
• Non-inverting output structure delivering stable logic states directly corresponding to input data upon clock activation.
• Military-grade environmental resilience utilizing a hermetically sealed ceramic package suitable for extreme thermal environments.

Flip Flops Applications

• High-reliability military aerospace digital systems requiring extended temperature operation
• Industrial control logic circuits demanding robust performance in harsh environments
• Data storage registers in communication equipment operating under severe thermal stress

Flip Flops Procurement Notes

Verify that the specific part number suffix matches the required package type and temperature rating. Confirm compliance with relevant export control classifications such as EAR99. Ensure the supplier provides traceable documentation for the ceramic dual in-line package construction. Validate that the component meets the specified electrical characteristics for the SN54LSxx series before integration into final assemblies.

Flip Flops Selection Notes

Select this component when designing systems that require octal storage elements capable of functioning in extreme cold or heat. The SN54LS377J is appropriate for applications where standard commercial grade parts fail due to thermal constraints. Consider the 20-lead CDIP footprint during layout planning. Evaluate power consumption requirements against the LS series specifications to ensure adequate supply capacity.

Flip Flops Part Context

This device is part of the SN54LSxx family, which represents low-power Schottky logic designed for military specifications. The SN54 prefix indicates suitability for the full industrial and military temperature range. It complements other logic gates within the same series to form complex sequential circuits. The ceramic packaging distinguishes it from plastic variants used in commercial applications.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.