MC74AC125MEL

Overview

The MC74AC125MEL is a quad buffer and line driver from the onsemi 74AC logic family. It features four non-inverting channels with three-state outputs, designed for high-speed signal transmission. The device operates within a supply voltage range of 2V to 6V. It utilizes a 14-SOIC surface-mount package. Key electrical characteristics include a low static current of 8uA and output drive capabilities of 24mA for both high and low states. Propagation delay is specified at 9ns at 3.3V and 7ns at 5V.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control for bus-oriented applications.
• Operates across a wide supply voltage range from 2V to 6V, supporting various digital logic levels.
• Features low static power consumption and high noise immunity typical of AC CMOS technology.

Applications

• Clock buffering and distribution in digital systems
• Bus-oriented drivers for data transmission lines
• Memory address and data bus drivers

Procurement Notes

Verify the specific suffix 'MEL' against the official onsemi datasheet to confirm package type and compliance status. Ensure the ordering part number matches the required tape-and-reel or tube packaging configuration. Cross-reference the manufacturer date code and RoHS compliance documentation prior to procurement to ensure alignment with project specifications.

Selection Notes

Select this component when a quad non-inverting buffer with three-state capability is required for 2V to 6V logic systems. Consider the 14-SOIC package constraints and thermal dissipation limits. Compare propagation delays and output drive currents against system timing requirements. Verify compatibility with existing bus architectures and load conditions before finalizing the design choice.

Part Context

This component belongs to the MC74AC125 series of buffers and line drivers manufactured by onsemi. It is part of the broader 74AC logic family, which offers higher speed performance compared to standard 74LS counterparts while maintaining CMOS low-power characteristics. The device serves as a fundamental building block for digital signal conditioning and interface applications.

Replacement Considerations

Check for direct pin-compatible alternatives such as MC74AC125DR2G or MC74AC125DG. Verify that substitute parts maintain identical voltage ranges, output drive strengths, and package dimensions. Confirm functional equivalence regarding three-state control logic and propagation delays before implementing any cross-brand or alternative package substitutions.