CD74HC174M

Overview

The CD74HC174M is a hex positive-edge-triggered D-type flip-flop manufactured by Harris Corporation. It features six independent data inputs and outputs with a common clock and master reset. The device operates on a supply voltage of 2V to 6V, supports a maximum frequency of 38MHz, and functions within a temperature range of -55°C to 125°C. It is housed in a 16-SOIC surface-mount package.

Feature Summary

• Hex configuration providing six edge-triggered D-type flip-flops
• Common asynchronous master reset for simultaneous clearing
• CMOS low power dissipation with high noise immunity

Applications

• Parallel-to-serial data conversion circuits
• Digital state storage and memory registers
• Timing and synchronization logic systems

Procurement Notes

Verify the manufacturer origin as Harris Corporation or authorized successor entities like Rochester Electronics due to discontinuation status. Confirm RoHS compliance requirements against EAR99 classification. Validate the 16-SOIC package dimensions and pinout compatibility before integration into existing PCB layouts.

Selection Notes

Select this component when a compact hex flip-flop solution is required for high-density designs. Ensure the system voltage falls within the 2V to 6V range. Consider the 125°C operating temperature limit for harsh environments. Verify that the SOIC package fits the available board space constraints compared to DIP alternatives.

Part Context

This part belongs to the 74HC series of CMOS logic devices, designed for general-purpose digital applications. It serves as a fundamental building block for sequential logic circuits. The 'M' suffix indicates the specific 16-SOIC surface-mount packaging variant offered by Harris Corporation.

Replacement Considerations

Check for equivalents from Nexperia or Texas Instruments such as SN74HC174N or SN74HCT174DR. Verify pin compatibility and electrical specifications before substitution.