MC74HC74AN

Flip Flops Overview

The MC74HC74AN is a dual D-type flip-flop manufactured by onsemi, belonging to the 74HC logic family. It features two independent D flip-flops with individual Set, Reset, and Clock inputs. The device utilizes high-performance silicon-gate CMOS technology, offering operating speeds comparable to equivalent LS-TTL parts while maintaining low power consumption. It operates within a voltage range of 2.0 V to 6.0 V and provides outputs directly compatible with CMOS, NMOS, and TTL loads. The package is a 14-pin SOIC.

Flip Flops Feature Summary

• Dual D-type flip-flop architecture with independent data, preset, clear, and clock inputs for each element.
• High noise immunity and low power consumption characteristic of standard CMOS integrated circuits.
• Outputs directly interface to CMOS, NMOS, and TTL loads without additional buffering.
• Asynchronous Set and Reset inputs allow state control independent of the clock signal.

Flip Flops Applications

• Data storage and synchronization in digital systems
• Shift registers and counter circuits
• Interface between different logic families (CMOS, NMOS, TTL)
• Timing delay elements in pulse circuits

Flip Flops Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel versus tube packaging. Confirm RoHS compliance status as historical batches may vary. Check lead times for obsolete or end-of-life status if applicable. Ensure the supplier provides original manufacturer documentation for quality assurance. Validate pinout compatibility with existing PCB footprints before procurement.

Flip Flops Selection Notes

Select this component when dual D-flip-flop functionality is required with HC-level speed and voltage compatibility. Consider the 14-pin SOIC package constraints for board space. Evaluate input capacitance and output drive capability against load requirements. Compare against alternative logic families if lower power or higher speed is critical. Verify temperature range specifications for the intended operating environment.

Flip Flops Part Context

The MC74HC74AN is part of onsemi's extensive 74HC series of high-speed CMOS logic devices. This series is designed to be pinout and functionally compatible with the standard 74LS logic family, facilitating easy upgrades from older TTL designs. The 74HC family is widely used in general-purpose digital applications due to its balance of speed, power, and compatibility.

Flip Flops Replacement Considerations

MC74HC74AD

Flip Flops FAQ

Are the Set and Reset inputs synchronous or asynchronous?

The Set and Reset inputs are asynchronous, meaning they can change the output state independently of the clock signal.

What is the operating voltage range for the MC74HC74AN?

The device operates within a supply voltage range of 2.0 V to 6.0 V.