CD74AC175ME4

Overview

The CD74AC175ME4 is a high-speed CMOS logic device manufactured by Texas Instruments, belonging to the AC logic family. It functions as a quad D-type flip-flop with reset, housed in a 16-pin SOIC-Narrow package. The component supports an operating voltage range of 1.5 V to 5.5 V and operates within a temperature range of -55 °C to +125 °C. Key electrical parameters include a maximum propagation delay of 8.5 ns at 5 V and a maximum output current of 24 mA. The device features four independent circuits, each containing a single D-type flip-flop.

Feature Summary

• Integrates four independent D-type flip-flops for parallel data storage
• Features synchronous operation triggered on the positive edge of the clock signal
• Includes a dedicated master reset input to initialize all flip-flops simultaneously
• Provides complementary outputs (Q and Q-bar) for each flip-flop stage

Applications

• High-speed digital data storage and buffering systems
• Parallel-to-serial data conversion circuits
• State machine implementation in complex logic designs
• Shift register configurations for sequential logic operations

Procurement Notes

Verify that the ordering suffix 'E4' corresponds to lead-free manufacturing standards and RoHS compliance requirements specific to your assembly process. Confirm the package designation matches the SOIC-Narrow form factor to ensure compatibility with existing PCB footprints. Cross-reference the manufacturer's latest datasheet revision to validate the specified electrical characteristics against your system design constraints.

Selection Notes

Select this component when a high-speed logic family is required for low-voltage applications down to 1.5 V. The AC series offers superior speed compared to HC variants while maintaining CMOS power efficiency. Ensure the design accommodates the 24 mA drive capability and utilizes appropriate decoupling capacitors near the power pins to maintain signal integrity during rapid switching events.

Part Context

This part belongs to the Texas Instruments CD74AC logic family, designed for high-performance digital applications. It serves as a modern alternative to older bipolar technologies like LS or SLS, offering faster switching speeds and lower power consumption. The device is widely used in telecommunications and computing infrastructure where reliable high-frequency operation is critical.

Replacement Considerations

Compatible substitutes include the SN74AC175 and CD74HC175. Verify pinout compatibility and check if the replacement meets the required voltage and speed specifications for the target application.