SNJ54S112FK

Flip Flops Overview

The SNJ54S112FK is a dual J-K negative-edge-triggered flip-flop manufactured by Texas Instruments. It features preset and clear inputs for direct control of output states. The device operates within a military-grade temperature range of -55°C to 125°C, ensuring reliability in harsh environments. It utilizes a 16-pin ceramic flatpack (CFP) package with metal-sealed cofired construction. The component supports unidirectional data storage with complementary outputs, designed for high-speed digital logic applications requiring robust performance and stable operation under extreme thermal conditions.

Flip Flops Feature Summary

• Dual J-K negative-edge-triggered flip-flops with independent preset and clear functions
• Military-grade operational capability across extended temperature ranges
• Complementary output configuration for versatile logic interfacing
• Hermetically sealed ceramic packaging for environmental protection

Flip Flops Applications

• High-reliability military aerospace computing systems
• Industrial control logic requiring extended temperature tolerance
• Data storage elements in ruggedized digital circuits
• Frequency division and counting circuits in defense electronics

Flip Flops Procurement Notes

Verify the specific ordering suffix matches the required package variant and lead time requirements. Confirm that the hermetic seal integrity meets military specifications for the intended deployment environment. Ensure compatibility with existing PCB footprints for the 16-pin ceramic flatpack design. Validate that the component's RoHS status aligns with project compliance standards, as this series may not be compliant. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency before integration.

Flip Flops Selection Notes

Select this component when dual J-K flip-flops with asynchronous control are required for military or industrial applications. Consider the ceramic package for superior thermal stability compared to plastic variants. Evaluate the negative-edge triggering characteristic against system clocking requirements. Assess the complementary output availability for direct driving needs without additional inversion stages. Verify that the operating temperature range covers the full environmental spectrum of the target application.

Flip Flops Part Context

This part belongs to the SN54/74S series of high-speed Schottky logic devices. It provides enhanced switching speeds compared to standard TTL families while maintaining compatible logic levels. The SNJ prefix indicates a military-grade qualification level with stricter manufacturing controls. This series is widely used in legacy and specialized systems requiring fast propagation delays and reliable state retention in demanding operational scenarios.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers: SNJ54LS112FK, SNJ54S112FC.