SN54LS378J

Flip Flops Overview

The SN54LS378J is a military-grade Hex D-type flip-flop manufactured by Texas Instruments. It features six independent positive-edge triggered D flip-flops with true outputs and an enable input. The device utilizes Low-Power Schottky (LS) TTL technology, ensuring high speed with reduced power consumption. It is housed in a 16-pin Ceramic Dual In-Line Package (CDIP). The component operates within a supply voltage range of 4.5 V to 5.5 V, typically at 5 V. It supports a maximum clock frequency of 40 MHz and exhibits a propagation delay of 27 ns. The operational temperature range extends from -55 °C to 125 °C, suitable for harsh environments.

Flip Flops Feature Summary

• Hex configuration containing six independent D-type flip-flops
• Positive-edge triggering mechanism with true output polarity
• Enable input control for data gating functionality
• Military-grade ceramic packaging for extreme environment reliability

Flip Flops Applications

• High-reliability aerospace computing systems
• Military communication equipment data storage
• Industrial control system state retention
• Harsh environment digital logic buffering

Flip Flops Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the procurement source provides traceability documentation required for military specifications. Confirm that the component meets the exact LS-TTL electrical characteristics defined in the official specification sheet before integration into critical designs.

Flip Flops Selection Notes

Select this component when hex D-type storage with enable control is required in space-constrained or high-vibration applications. The CDIP package offers superior mechanical stability compared to plastic variants. Choose this part over commercial grades only if the extended temperature range and radiation hardness are necessary for the specific operational environment.

Flip Flops Part Context

This device belongs to the SN54xx series, which denotes military-grade performance standards distinct from the commercial SN74xx family. The LS designation indicates Low-Power Schottky logic, balancing speed and power efficiency. As a flip-flop, it serves as a fundamental building block for sequential logic circuits, storing binary data synchronized with clock signals.

Flip Flops Replacement Considerations

SN54LS378J-00