JM54AC109SFA-RH

Overview

The JM54AC109SFA-RH is a military-grade, single D-type flip-flop manufactured by National Semiconductor (now Texas Instruments). It features positive-edge triggering and includes separate clock and preset inputs. The device operates within a supply voltage range of 3.0V to 5.5V and supports a load capacitance of 50pF. Propagation delay is typically 15.5ns at nominal supply. It utilizes a ceramic flatpack package with 14 terminals, designed for high-reliability applications requiring extended temperature performance.

Feature Summary

• Military-grade reliability certified for harsh environments
• Single D-type flip-flop architecture with positive-edge triggering
• Ceramic flatpack construction for enhanced thermal and mechanical stability

Applications

• Aerospace avionics data storage systems
• Military communication equipment timing circuits
• High-reliability industrial control logic

Procurement Notes

Verify the specific suffix 'RH' against the manufacturer's current datasheet to confirm environmental compliance and lead time requirements. Ensure the supplier provides traceability documentation suitable for defense or aerospace procurement standards. Confirm that the ceramic flatpack package matches the footprint constraints of the target PCB design prior to ordering.

Selection Notes

Select this component when a single D-flip-flop is required in a high-reliability environment. It is suitable for designs needing military temperature ranges and radiation tolerance. Compare against standard commercial variants if cost is a primary constraint, noting that this part offers superior durability for critical systems.

Part Context

This part belongs to the 54AC series of advanced CMOS logic devices produced by National Semiconductor. The 54AC family is known for high-speed operation and low power consumption compared to earlier TTL technologies. The military variant ensures consistent performance across extreme temperature fluctuations found in field-deployable equipment.

Replacement Considerations

Direct replacements include other military-grade 54AC109 variants from Texas Instruments or qualified equivalents from manufacturers like Raytheon. Verify pin compatibility and electrical specifications before substituting.