CD74AC74M

Overview

The CD74AC74M is a dual D-type edge-triggered flip-flop from the Texas Instruments CD74AC series. It features two independent circuits in an SOIC-14 package. The device operates on a supply voltage range of 1.5 V to 5.5 V with a maximum quiescent current of 8 µA. It supports a wide operating temperature range from -55°C to +125°C. Key electrical parameters include a propagation delay of 125 ns and output currents of ±24 mA. The inputs and outputs are CMOS compatible, ensuring standard logic level interfacing for digital applications.

Feature Summary

• Dual independent D-type positive-edge triggered flip-flops
• Wide supply voltage operation from 1.5 V to 5.5 V
• Extended industrial temperature rating from -55°C to +125°C
• CMOS input and output levels with high noise immunity

Applications

• Parallel data storage registers
• Shift register configurations
• Frequency division circuits
• Digital state memory elements

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the component meets RoHS requirements if applicable to the design. Confirm availability status as some variants may be subject to discontinuation notices. Cross-reference the datasheet revision date to ensure compatibility with current design standards and pinout definitions.

Selection Notes

Select this component when dual independent storage elements are required within a single package. The AC series offers a balance of speed and power consumption suitable for general-purpose digital logic. Consider the SOIC-14 surface-mount package for PCB space constraints. Verify that the 1.5 V minimum supply voltage aligns with the system's power rail capabilities and that the 125 ns delay meets the timing requirements of the application.

Part Context

The CD74AC74M belongs to the Texas Instruments CD74AC family of logic integrated circuits. This family utilizes advanced silicon gate CMOS technology to achieve high switching speeds while maintaining low power dissipation. The AC series is designed for compatibility with standard TTL logic levels but operates over a wider voltage range. The CD74 prefix indicates commercial grade temperature performance, though this specific part extends to industrial limits.

Replacement Considerations

Public confirmed substitute part numbers: CD74AC74M96.