MC74LCX125DTR2GH

Overview

The MC74LCX125DTR2GH is a low-voltage quad buffer and line driver from the onsemi LCX logic family. It features four non-inverting channels with three-state outputs, housed in a 14-TSSOP surface-mount package. The device operates within a supply voltage range of 2 V to 3.6 V. It provides high output drive capability of 24 mA at both high and low states. Propagation delay is specified at 6.5 ns at 2.7 V and 6 ns at 3.3 V. Static current is limited to 10 uA, supporting low-power applications.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control for bus-oriented applications.
• Features 5V tolerant inputs, allowing safe interfacing between low-voltage logic and 5V I/O systems.
• Delivers strong 24 mA output drive current to support heavy capacitive loads and transmission lines.

Applications

• Memory address driving in embedded systems
• TTL level bus oriented transceiver applications
• High-speed data buffering for low-voltage logic interfaces

Procurement Notes

Verify the complete part number including the suffix 'GH' to ensure correct tape-and-reel packaging and specific manufacturing lot codes. Confirm RoHS compliance status through official datasheets or manufacturer declarations prior to integration. Cross-reference the TSSOP-14 pinout with your PCB footprint design to prevent orientation errors during assembly.

Selection Notes

Select this component when designing systems requiring interface between 2V–3.6V logic domains and 5V I/O peripherals. The LCX series offers superior speed compared to standard LVC devices while maintaining low power consumption. Ensure the application does not exceed the maximum operating temperature of +85°C or the absolute maximum ratings defined in the electrical characteristics table.

Part Context

This component belongs to the MC74LCX125 series, which includes variants such as MC74LCX125DTR2G and MC74LCX125MTCX. These parts share identical logical functionality but may differ in packaging options like TSSOP or SOIC, or reel specifications. The LCX family is designed for low-voltage CMOS applications requiring high performance and compatibility with legacy TTL standards.

Replacement Considerations

Direct substitutes include MC74LCX125DTR2G and MC74LCX125MTCX. Verify that alternative packages match the board layout constraints. Ensure any replacement maintains the 5V input tolerance and 24mA drive current specifications required by the circuit design.