CD74AC74E-NG

Overview

The CD74AC74E-NG is a dual positive-edge-triggered D-type flip-flop manufactured by Texas Instruments. It features independent clear and preset inputs for direct control of output states. The device operates within a supply voltage range of 1.5 V to 5.5 V, providing balanced noise immunity at 30% of the supply. It utilizes CMOS input technology and delivers differential outputs. The component is housed in a standard DIP package suitable for through-hole mounting.

Feature Summary

• Dual positive-edge-triggered D-type flip-flops with independent clear and preset functions
• CMOS input structure ensuring high noise immunity relative to supply voltage
• Differential output configuration for reliable signal transmission

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose storage elements in digital logic systems

Procurement Notes

Verify that the ordering suffix '-NG' corresponds to the specific tape-and-reel or tube packaging variant required for your assembly process. Confirm that the manufacturer designation aligns with Texas Instruments specifications. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the full part number against official distributor catalogs to validate availability and authenticity before procurement.

Selection Notes

Select this component when a dual D-type flip-flop with asynchronous clear and preset capabilities is required. It is suitable for designs needing positive-edge triggering and differential outputs. Consider the 1.5 V to 5.5 V operating range for low-voltage applications. Verify package compatibility with existing PCB footprints. Evaluate propagation delay characteristics against system timing requirements.

Part Context

This component belongs to the CD74AC series of logic integrated circuits from Texas Instruments. The AC series offers speed comparable to bipolar families while maintaining CMOS power efficiency. The CD74AC74 specifically provides two isolated flip-flops in a single package, distinguishing it from quad variants like the CD74HC74.

Replacement Considerations

Public confirmed substitute part numbers include CD74AC74E.