DM74ALS574AWM

Overview

The DM74ALS574AWM is an Advanced Low-power Schottky (ALS) octal D-type flip-flop manufactured by Fairchild Semiconductor. It features eight positive-edge-triggered D-type flip-flops with three-state outputs housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 35 MHz. Key electrical parameters include a propagation delay of 14ns at 5V with 50pF load, output currents of 2.6mA high and 24mA low, and a static current of 18 mA.

Feature Summary

• Contains eight independent positive-edge-triggered D-type flip-flops for data storage.

Applications

• Register applications requiring parallel data storage.

Procurement Notes

Verify the component status as discontinued or obsolete before procurement planning. Confirm that the specific manufacturer designation matches the required datasheet specifications. Ensure compatibility with existing board layouts and signal integrity requirements given the ALS logic family characteristics.

Selection Notes

Select this component when designing systems requiring octal storage with tri-state bus interfacing capabilities. Consider the 20-SOIC package constraints and the specific power consumption profile associated with the ALS series compared to standard TTL or LS alternatives.

Part Context

This part belongs to the Fairchild DM74ALS series of advanced low-power Schottky logic devices. It serves as a digital storage element within the broader 74-series logic family ecosystem, providing standardized functionality for microprocessor and memory interface designs.

Replacement Considerations

Direct substitute part numbers are not explicitly confirmed in the provided documentation for this specific legacy Fairchild variant.