DM74ALS74AN

Overview

The DM74ALS74AN is a dual D-type flip-flop from the Advanced Low-power Schottky (ALS) series, manufactured by Fairchild Semiconductor. It contains two independent positive edge-triggered flip-flops within a 14-pin Dual In-line Package (DIP). Each flip-flop features individual Data (D), Clock, Clear, and Preset inputs. The device operates on a supply voltage range of 4.5V to 5.5V. Key electrical specifications include a propagation delay of 16ns and a maximum operating frequency of 34MHz.

Feature Summary

• Contains two independent positive edge-triggered D-type flip-flops
• Features individual control inputs for Data, Clock, Clear, and Preset functions
• Utilizes advanced oxide-isolated, ion-implanted Schottky TTL process technology

Applications

• Digital data storage and register circuits
• Sequential logic control systems
• Frequency division and pulse shaping applications

Procurement Notes

Verify that the component matches the specific DM74ALS74AN part number with the 'AN' suffix indicating the 14-pin DIP package configuration. Confirm compliance with RoHS standards if required for the assembly process. Ensure the supplier provides original manufacturer documentation or traceable datasheets to validate the ALS series performance characteristics and pinout integrity before integration into designs.

Selection Notes

Select this component when designing circuits requiring dual D-type flip-flops with low power consumption and high-speed switching capabilities typical of the ALS family. It serves as a functional and pin-compatible replacement for standard Schottky TTL devices while offering improved AC performance. Consider the 14-pin DIP package constraints and the 4.5V to 5.5V supply voltage requirements during schematic capture and PCB layout planning.

Part Context

This device belongs to the 74ALS series of logic integrated circuits, which are designed to bridge the gap between standard TTL and low-power Schottky technologies. The DM74ALS74A variant specifically addresses applications needing reliable sequential logic elements. The 'N' suffix in the model number denotes the plastic dual-in-line package style, distinguishing it from ceramic or surface-mount alternatives within the same logical function family.

Replacement Considerations

• DM74LS74AN
• SN74ALS74AN

FAQ

What are the input configurations for each flip-flop?

Each of the two flip-flops has individual Data (D), Clock, Clear, and Preset inputs.

Is this device compatible with standard TTL logic levels?

Yes, it is functionally and pin-for-pin compatible with Schottky and low-power Schottky TTL counterparts.