MC74LCX125DTG

Overview

The MC74LCX125DTG is a low-voltage quad buffer with 5V tolerant inputs and outputs, manufactured by onsemi. It operates within a supply voltage range of 2.0 V to 3.6 V and features four non-inverting buffers with three-state outputs. The device utilizes CMOS technology for high-speed operation while maintaining low power consumption. It is housed in a 14-TSSOP surface-mount package suitable for space-constrained designs.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state control
• Features 5V tolerant inputs allowing direct interfacing with 5V logic systems
• Operates at low supply voltages ranging from 2.0 V to 3.6 V
• Delivers high noise immunity and stable performance across the operating temperature range

Applications

• Memory data bus buffering in portable electronic devices
• Signal level translation between low-voltage and 5V logic domains
• Clock distribution networks requiring high-speed signal integrity
• I/O expansion interfaces in industrial control systems

Procurement Notes

Verify the specific suffix DTG corresponds to the TSSOP-14 packaging and tube shipping configuration. Confirm RoHS compliance status and lead times directly with onsemi or authorized distributors. Ensure the component matches the required operating temperature range and electrical specifications for your application design.

Selection Notes

Select this component when interfacing 2.5V or 3.3V logic with 5V tolerant peripherals. The three-state output allows multiple drivers on a shared bus without contention. Consider the TSSOP-14 package for PCB layout constraints. Verify input voltage levels do not exceed the absolute maximum ratings during transient conditions.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices. The LCX family is designed for applications requiring high speed and low power dissipation. It serves as a buffer solution for systems transitioning between different voltage domains. The device complements other LCX logic gates for complete system implementation.

Replacement Considerations

Check for pin-compatible alternatives such as the 74LCX125MTCX or MC74LCX125DTR2G. Ensure substitute parts maintain the same 5V tolerance and three-state functionality. Verify that any replacement offers equivalent propagation delay and output drive current capabilities.