SNJ54HC109FK

Flip Flops Overview

The SNJ54HC109FK is a dual J-K positive-edge-triggered flip-flop from the Texas Instruments SNJ54HC series. It operates within a supply voltage range of 2V to 6V and supports an extended temperature range of -55°C to 125°C. The device features independent clear and preset inputs for direct control. It is housed in a 20-lead ceramic flatpack (CDFP) package designed for high reliability.

Flip Flops Feature Summary

• Dual J-K flip-flops with positive-edge triggering
• Independent clear and preset inputs
• Extended temperature range capability

Flip Flops Applications

• Military aerospace systems
• Spacecraft data handling
• High-reliability industrial logic circuits

Flip Flops Procurement Notes

Verify the specific suffix 'FK' against official Texas Instruments documentation to confirm the exact package variant and qualification status. Ensure that the procurement source provides traceability certificates required for military or space-grade components. Confirm compliance with relevant environmental standards before finalizing orders.

Flip Flops Selection Notes

Select this component when dual J-K functionality with asynchronous control is required in harsh environments. The HC technology offers standard CMOS performance. Verify that the 20-lead CDFP package fits the mechanical constraints of the target application board design.

Flip Flops Part Context

This part belongs to the SNJ54HC family, which denotes hermetic ceramic packages suitable for extreme conditions. It shares logical functionality with commercial plastic-packaged variants but differs in physical construction and radiation hardness characteristics defined by the manufacturer's quality controls.

Flip Flops Replacement Considerations

Direct pin-compatible replacements may include other SNJ54HC109 variants with different suffixes if package compatibility is maintained. Cross-reference with SNJ54ALS109AFK only if speed requirements differ significantly.