MM74HCT74M

Flip Flops Overview

The MM74HCT74M is a dual D-type flip-flop featuring independent preset and clear inputs, manufactured by Fairchild Semiconductor. It utilizes advanced silicon-gate CMOS technology to achieve operation speeds comparable to equivalent LS-TTL parts. The device operates within a supply voltage range of 2V to 6V. Key electrical parameters include a maximum propagation delay of 20ns at 5V with a 50pF load, and output drive capabilities of 4.8mA for both high and low states. It functions reliably across an operating temperature range of -40°C to 85°C.

Flip Flops Feature Summary

• Dual D-type flip-flop architecture with dedicated preset and clear control inputs
• Advanced silicon-gate CMOS technology ensuring compatibility with LS-TTL speed performance
• Wide operating voltage range supporting 2V to 6V supply applications

Flip Flops Applications

• Digital data storage circuits requiring parallel input retention
• Shift register configurations for serial-to-parallel data conversion
• Timing and synchronization logic in digital systems

Flip Flops Procurement Notes

Verify the specific ordering suffix against manufacturer documentation, as variants such as the 'X' suffix indicate tape and reel packaging options distinct from bulk units. Confirm current production status, as some sources classify this component as obsolete or discontinued. Ensure the selected package matches the required surface-mount footprint specifications for PCB integration.

Flip Flops Selection Notes

Select this component when designing circuits that require dual edge-triggered storage elements with asynchronous control. The HCT series ensures TTL-compatible logic levels, simplifying interface with legacy digital systems. Evaluate the 14-SOIC package dimensions for space constraints and verify thermal requirements against the specified operating temperature range for the target environment.

Flip Flops Part Context

This part belongs to the 74HCT logic family, which bridges CMOS power efficiency with TTL noise immunity. The MM74HCT74M specifically provides two independent D-flip-flops in a single package, offering a compact solution for sequential logic design compared to discrete components.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.