DM74ALS273WM

Overview

The DM74ALS273WM is an octal D-type flip-flop manufactured by onsemi, belonging to the 74ALS logic series. It features eight positive-edge-triggered D flip-flops with non-inverting outputs in a single package. The device operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 20-SOIC (0.295 inch, 7.50mm wide) package. Designed for commercial temperature ranges from 0°C to 70°C, it utilizes TTL input and output levels. This component is currently obsolete and no longer in production.

Feature Summary

• Contains eight independent positive-edge-triggered D-type flip-flops
• Provides non-inverting outputs for direct data representation
• Compatible with standard TTL logic input and output voltage levels
• Utilizes Advanced Low-power Schottky technology for improved speed

Applications

• Octal register storage applications
• Data buffering in digital systems
• Shift register configurations
• State machine implementation

Procurement Notes

This component is officially discontinued and no longer manufactured by onsemi. Verification of availability should focus on third-party surplus distributors or secondary markets rather than primary supply channels. Engineers must confirm the authenticity of existing stock through authorized channels. Replacement strategies should prioritize functional equivalents from current production lines to ensure long-term project viability and supply chain stability.

Selection Notes

Designers requiring this specific logic family should evaluate modern alternatives that offer comparable performance metrics. Considerations include verifying pin compatibility and ensuring that replacement devices support the required operating voltage and temperature ranges. Transitioning to newer logic families may provide benefits such as lower power consumption or enhanced switching speeds while maintaining functional equivalence for existing circuit designs.

Part Context

The DM74ALS273WM belongs to the 74ALS series, which represents an advancement over standard 74LS logic in terms of speed. As an octal flip-flop, it consolidates eight individual storage elements into one integrated circuit, reducing board space requirements. The SOIC-20 package facilitates automated surface-mount assembly processes, making it suitable for high-volume manufacturing environments where compact layout and reliable interconnection are critical design factors.

Replacement Considerations

SN74ALS273DW is a confirmed substitute part number from Texas Instruments.