CD74AC374ME4

Overview

The CD74AC374ME4 is an octal D-type edge-triggered flip-flop manufactured by Texas Instruments. It features three-state outputs and operates within a supply voltage range of 2 V to 6 V. The device utilizes CMOS input technology and provides non-inverting logic polarity. It is housed in a 20-pin SOIC package designed for surface-mount installation. The component supports a maximum propagation delay of 13.5 ns and delivers output currents of 24 mA at both high and low states. It functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Octal D-type edge-triggered flip-flop architecture with eight independent circuits
• Three-state outputs allowing direct bus-line connections without external drivers
• CMOS input structure ensuring compatibility with standard logic families

Applications

• Parallel-to-serial data conversion systems
• Register storage within digital processing units
• Buffering applications for memory address lines

Procurement Notes

Verify the specific suffix ME4 corresponds to the lead-free tape-and-reel packaging variant when sourcing. Confirm that the manufacturer designation aligns with Texas Instruments specifications. Ensure the ordering part number matches the required package style and environmental compliance standards before finalizing procurement orders.

Selection Notes

Select this component for designs requiring high-density octal storage with bus-compatible outputs. Consider the AC series performance characteristics regarding speed and power consumption relative to system requirements. Evaluate the surface-mount package dimensions against available PCB real estate constraints during the layout phase.

Part Context

This device belongs to the SN74AC374 family of octal flip-flops. It shares functional similarities with other members like the SN74AC374PWR but differs in physical packaging and manufacturing lot codes. The ME4 suffix specifically denotes the SOIC package configuration with lead-free plating, distinguishing it from through-hole or alternative surface-mount variants.

Replacement Considerations

Direct substitutes include the SN74AC374NSR and SN74AC374PWR. Verify pinout compatibility and electrical parameter alignment before substituting.