DM74ALS273WMX

Overview

The DM74ALS273WMX is an octal D-type edge-triggered flip-flop manufactured by Fairchild Semiconductor. It features eight independent D-type flip-flops with a common clock and a master reset input. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes the Advanced Low-Power Schottky (ALS) TTL process, providing high-speed switching capabilities while maintaining low power consumption. The component is housed in a 20-pin SOIC package suitable for surface mount applications.

Feature Summary

• Contains eight independent D-type edge-triggered flip-flops with a common clock
• Features a master reset input for synchronous or asynchronous clearing
• Utilizes Advanced Low-Power Schottky (ALS) technology for improved performance
• Designed for bidirectional data bus applications in memory and microprocessor systems

Applications

• Memory systems requiring data storage and retrieval
• Microprocessor-based control logic circuits
• Asynchronous bidirectional data bus interfaces
• Digital signal processing equipment

Procurement Notes

Verify the specific suffix 'WMX' against the manufacturer's official documentation to confirm tape-and-reel packaging and moisture sensitivity classification. Ensure the component meets RoHS compliance requirements if applicable to your assembly process. Cross-reference the datasheet revision date to confirm electrical characteristics match your design specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring octal data latching with low power dissipation. The ALS series offers faster switching speeds compared to standard LS logic while consuming less power than standard S-TTL. Consider the 20-pin SOIC package constraints for PCB layout. Verify that the operating temperature range aligns with your environmental requirements.

Part Context

This part belongs to the Fairchild DM74ALS series of logic integrated circuits. It is functionally compatible with other 74ALS273 variants from different manufacturers but may exhibit differences in electrical parameters such as propagation delay and output drive current. The device is part of the broader family of octal flip-flops used in digital logic design.

Replacement Considerations

Equivalent parts include SN74ALS273N from Texas Instruments and MM74HC273WM from onsemi, though voltage ranges and speed characteristics differ. Verify pin compatibility and electrical specifications before substitution. The HC series operates at lower voltages and requires level shifting if interfacing with 5V ALS logic.