74LCX125BQX

Overview

The onsemi 74LCX125BQX is a quad buffer and line driver featuring non-inverting logic with three-state outputs. It operates within a supply voltage range of 2V to 3.6V and provides symmetric output drive currents of 24mA for both high and low states. The device is housed in a 14-DQFN (3x2.5) surface-mount package with exposed pad. It supports an operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

Feature Summary

• Provides four independent non-inverting buffer channels with individual control capabilities
• Features three-state outputs allowing bus line isolation and power-down protection
• Supports mixed 3.3V and 5V system environments through compatible input/output levels

Applications

• Bus buffering in portable battery-powered equipment
• Clock distribution and signal buffering in consumer electronics
• Memory and data bus drivers in industrial control systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer datasheet to ensure correct packaging configuration, as variants such as TR, CT, and DKR denote different reel or cut-tape formats. Confirm that the 14-DQFN package dimensions match the target PCB footprint requirements. Ensure compliance with current RoHS3 directives and check for any recent PCN notifications regarding assembly or material changes before finalizing procurement.

Selection Notes

Select this component when a quad buffer with three-state capability is required for 2V to 3.6V logic families. It is suitable for applications needing 24mA drive strength and operation across extended industrial temperatures. Consider the 14-DQFN package size constraints and thermal dissipation needs relative to alternative packages like TSSOP or SOIC.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices manufactured by onsemi. The 74LCX125 specifically functions as a quad buffer/line driver. It is designed for high-speed digital applications requiring low power consumption and compatibility with standard logic interfaces in compact electronic designs.

Replacement Considerations

Direct pin-compatible substitutes may include other manufacturers' 74LCX125 variants in equivalent packages. Verify electrical parameters such as VCC range and drive current when cross-referencing with generic 74LCX125 parts from different vendors.