CD74HC273ME4

Overview

The CD74HC273ME4 is a high-speed CMOS logic octal D-type flip-flop manufactured by Texas Instruments. It features eight independent D-type flip-flops with positive-edge triggering and a common clock (CP) input. The device includes a master reset (MR) input that forces all outputs low when active. It operates within a supply voltage range of 2 V to 6 V, supporting a maximum frequency of 20 MHz at nominal supply. The package is a 20-pin SOIC with an operating temperature range of -55°C to 125°C.

Feature Summary

• Contains eight independent D-type flip-flops with positive-edge triggering
• Features a common clock input for synchronized data latching across all channels
• Includes a master reset function to force all outputs to a low state

Applications

• Digital register designs requiring parallel data storage
• Counter circuits utilizing shared clock and reset signals
• State machine implementations in industrial control systems

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free composition and RoHS compliance as per manufacturer standards. Confirm the SOIC-20 package dimensions match the design footprint requirements. Ensure the extended temperature grade (-55°C to 125°C) aligns with the environmental conditions of the target application. Cross-reference the datasheet revision to confirm pinout consistency.

Selection Notes

Select this component for applications requiring wide voltage operation and robust performance across extreme temperatures. The HC series offers compatibility with standard CMOS logic levels while providing sufficient drive current for moderate loads. Consider the 20-pin SOIC package for surface-mount assembly constraints. Evaluate propagation delay specifications against system timing requirements to ensure signal integrity.

Part Context

This part belongs to the Texas Instruments CD74HC273 family of octal D-type flip-flops. It is designed for high-speed digital applications where reliable data storage and synchronization are critical. The device is part of the broader 74HC logic series, known for its wide operating voltage range and compatibility with various logic families.

Replacement Considerations

CD74HC273M96E4: Alternative variant within the same manufacturer's portfolio.