CD74HC273M

Overview

The CD74HC273M is a high-speed CMOS logic octal D-type flip-flop with reset, manufactured by Texas Instruments. It features eight independent D-type flip-flops in a single package, providing positive-edge triggering and non-inverting outputs. The device operates within a supply voltage range of 2 V to 6 V and supports data rates up to 20 MHz at nominal supply. It includes a master reset input for synchronous clearing of all outputs. Designed for surface-mount applications, it utilizes a 20-pin Small Outline Integrated Circuit (SOIC) package. The component ensures reliable performance across an extended industrial temperature range from -55°C to +125°C, making it suitable for demanding digital logic environments.

Feature Summary

• Integrates eight independent D-type flip-flops with positive-edge clock triggering
• Includes a dedicated master reset input for synchronous output clearing
• Operates with non-inverting outputs compatible with standard CMOS logic levels
• Supports wide supply voltage operation ranging from 2 V to 6 V

Applications

• Octal data storage and buffering in digital systems
• Parallel-to-serial conversion circuits
• State machine implementation requiring multiple synchronized registers
• Industrial control logic interfacing

Procurement Notes

Verify the specific suffix 'M' corresponds to the SOIC-20 package variant when sourcing. Confirm RoHS compliance status as indicated in official datasheets. Ensure the operating environment remains within the specified -55°C to +125°C temperature limits. Check for any recent product lifecycle notices or obsolescence warnings directly from Texas Instruments documentation before finalizing procurement plans.

Selection Notes

Select this component when an octal register configuration is required with synchronous reset functionality. The HC series offers standard speed performance suitable for general-purpose logic applications. Consider the SOIC-20 package dimensions for PCB layout constraints. Verify that the 20 MHz maximum frequency meets the system clock requirements. Evaluate power consumption characteristics against other logic families if low-power operation is critical.

Part Context

This part belongs to the Texas Instruments CDx4HC(T)273 family of high-speed CMOS logic devices. It serves as an octal version within the broader D-type flip-flop portfolio, complementing hex and quad variants like the CD74HC174 and CD74HC175. The device represents a standard solution for multi-bit data retention in digital circuit design, widely utilized in embedded systems and communication interfaces.

Replacement Considerations

The CD74HC273M96 is a documented equivalent variant within the same family, sharing identical logical functionality and pinout compatibility. Both parts belong to the CD74HC273 series and maintain functional interchangeability for most design implementations.