MM74HC74ASJ

Flip Flops Overview

The MM74HC74ASJ is a dual D-type flip-flop manufactured by Fairchild Semiconductor, utilizing advanced silicon-gate CMOS technology. It features independent data, preset, clear, and clock inputs with Q and Q-bar outputs. The device operates within a supply voltage range of 2V to 6V. Key electrical parameters include a typical propagation delay of 20 ns, a maximum low quiescent current of 40 µA, and a maximum low input current of 1 µA. It provides a fanout capability of 10 LS-TTL loads.

Flip Flops Feature Summary

• Advanced silicon-gate CMOS technology for high-speed operation comparable to LS-TTL equivalents
• High noise immunity combined with low power consumption characteristics
• Independent asynchronous preset and clear functions not synchronized with the clock

Flip Flops Applications

• Bus-organized systems requiring data storage elements
• Digital logic circuits needing positive edge-triggered state retention
• Interfaces between standard CMOS and LS-TTL logic families

Flip Flops Procurement Notes

Verify the specific suffix 'SJ' against official Fairchild or ON Semiconductor datasheets, as it may denote specific packaging or environmental compliance variations. Confirm availability status as legacy components may be discontinued. Ensure the manufacturer designation matches current corporate ownership transitions from Fairchild to ON Semiconductor.

Flip Flops Selection Notes

Select this component when a dual D-type flip-flop with synchronous data transfer and asynchronous control is required. It is suitable for designs needing wide voltage operation between 2V and 6V. Consider its 20 ns propagation delay for timing-critical applications within the HC series performance envelope.

Flip Flops Part Context

This part belongs to the MM74HC74 family of dual D-type flip-flops. It shares functional compatibility with other 74HC series devices while offering specific package configurations indicated by the suffix. The device is designed to replace equivalent LS-TTL parts in terms of speed while maintaining CMOS power advantages.

Flip Flops Replacement Considerations

Functionally compatible substitutes include the MM74HC74AN and MM74HC74AMX. Verify pinout and electrical specifications match before substitution.