JM54ACT574SRA-R

Overview

The JM54ACT574SRA-R is an octal D-type flip-flop manufactured by National Semiconductor, housed in a 20-CDIP package. It features tri-state outputs and operates on a single positive-edge clock input. The device supports a supply voltage range of 4.5 V to 5.5 V and functions within a temperature range of -55°C to +125°C. Key electrical parameters include a propagation delay of 11 ns, with high-level output current capability of -24 mA and low-level output current of 24 mA.

Feature Summary

• Octal D-type configuration with buffered common clock and output enable inputs
• Tri-state outputs for bus-oriented memory operations
• High-speed CMOS technology ensuring low power consumption

Applications

• Bus-oriented memory register implementations
• High-speed digital data storage applications
• Parallel-to-serial conversion circuits

Procurement Notes

Verify the component authenticity against National Semiconductor specifications. Confirm the 20-CDIP package dimensions match the required 0.300-inch footprint. Ensure the operating temperature range meets the -55°C to +125°C requirement for military-grade environments. Check datasheet revisions for any pinout or electrical characteristic updates prior to integration.

Selection Notes

Select this component when military-grade reliability and wide temperature operation are required. Compare propagation delays and drive currents against standard commercial variants if cost is a primary constraint. Ensure the tri-state output requirements align with the system bus architecture. Verify that the CDIP package style is compatible with the available PCB manufacturing processes.

Part Context

This part belongs to the 54ACT logic family, designed for high-speed digital systems. It serves as a robust alternative to commercial grade parts, offering extended temperature ranges suitable for harsh environments. The octal configuration allows for efficient parallel data handling in complex digital architectures.

Replacement Considerations

SNJ54ACT574J from Texas Instruments offers similar military-grade specifications and functionality.