54ACTQ574FM-MLS

Overview

The National Semiconductor 54ACTQ574FM-MLS is an octal D-type flip-flop belonging to the ACT series, housed in a 20-CFlatPack package. It features eight positive-edge-triggered D inputs and non-inverting outputs with a common buffered clock and output enable. The device operates within a supply voltage range of 4.5 V to 5.5 V, supporting propagation delays of 11 ns. It provides high-level output currents of -24 mA and low-level output currents of 24 mA, functioning reliably across temperatures from -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop architecture with buffered common clock and output enable
• High-speed operation with 11 ns propagation delay
• Robust output drive capability with ±24 mA current ratings

Applications

• Parallel-to-serial data conversion circuits
• Register file storage elements
• Bus driver interface applications

Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers. Confirm that the part number matches the specific suffix requirements for your application. Request original manufacturer documentation to validate specifications against datasheet standards. Ensure proper handling procedures are followed during installation to maintain device integrity.

Selection Notes

Select this component when designing systems requiring high-speed octal latching with standard CMOS compatibility. Consider the 20-CFlatPack form factor for space-constrained layouts. Evaluate thermal management needs given the operating temperature range. Verify power supply stability within the specified voltage limits to ensure consistent logic levels.

Part Context

This component is part of the broader 54ACT574 family of octal flip-flops manufactured by National Semiconductor. It shares functional similarities with other ACT series devices but is distinguished by its specific packaging and military-grade qualification indicators implied by the '54' prefix. It serves as a critical building block for digital logic designs requiring parallel data storage.

Replacement Considerations

Public confirmed substitute part numbers include 74ACT574PC_Q from onsemi, which offers similar octal D-type functionality in a PDIP-20 package. Verify pinout compatibility and electrical parameters before substitution.