74HC74DR2G

Overview

The MC74HC74DR2G is a dual D-type flip-flop with set and reset, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 6.0 V and features low input current of 1.0 μA. The device provides high noise immunity characteristic of CMOS technology and includes ESD protection exceeding 2000 V (HBM). It utilizes a SOIC-14 surface-mount package and supports positive-edge triggering for data transfer from the D-input to the Q output.

Feature Summary

• Dual D-type flip-flops with individual asynchronous Set, Reset, and Clock inputs
• High noise immunity and low input current typical of CMOS devices
• Outputs directly interface to CMOS, NMOS, and TTL loads

Applications

• Data storage and register applications
• Shift registers
• Timing circuits requiring positive-edge triggering

Procurement Notes

Verify the specific suffix DR2G against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements between 2.0 V and 6.0 V. Confirm RoHS compliance status through manufacturer documentation prior to integration.

Selection Notes

Select this component when dual independent D-flip-flops are required in a compact SOIC-14 package. It is suitable for designs needing direct interfacing with LSTTL or standard CMOS outputs. Consider its 2.0 V to 6.0 V operating range for versatile power supply options.

Part Context

This part belongs to the 74HC74 family of high-speed silicon-gate CMOS logic devices. It is functionally identical in pinout to the LS74 but offers improved performance characteristics such as lower power consumption and higher noise immunity inherent to the HC series technology.

Replacement Considerations

Compatible substitutes include other manufacturers' 74HC74 variants. Verify pinout compatibility and electrical parameters such as propagation delay and output drive capability before substitution.