CD74HC125M

Overview

The CD74HC125M is a high-speed CMOS logic quad buffer with three-state outputs manufactured by Harris Corporation. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -55°C to 125°C. The device utilizes a 14-pin Small Outline (SOP) package, specifically SOP14,.25, with a load capacitance of 50 pF. It functions as a unidirectional bus driver with true output polarity and low-level enable control.

Feature Summary

• Provides four independent buffering channels for signal isolation and drive enhancement
• Features three-state outputs to facilitate bus line sharing and system flexibility
• Operates reliably across extended industrial temperature ranges

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• Transceiver buffers for bidirectional data flow

Procurement Notes

Verify the manufacturer origin carefully, as Texas Instruments acquired Harris Semiconductor's logic product lines. Confirm whether the specific unit is an original Harris component or a TI continuation, noting potential differences in RoHS compliance status and marking codes between the legacy Harris era and current production.

Selection Notes

Select this component when four buffered channels with three-state capability are required for bus architectures. Ensure the design accommodates the 2V to 6V supply range and that the SOP14 footprint matches the PCB layout constraints. Verify compatibility with the target logic family voltage levels before integration.

Part Context

This part belongs to the HC/UH series of high-speed CMOS logic devices. It serves as a fundamental building block for digital systems requiring signal buffering and bus management. The 'M' suffix typically denotes the plastic small outline package variant used in surface-mount applications.