MC74LCX125DTR2

Overview

The MC74LCX125DTR2 is a low-voltage quad buffer and line driver manufactured by onsemi. It operates within a supply voltage range of 2 V to 3.6 V and features four non-inverting channels with three-state outputs. The device utilizes CMOS technology and is housed in a TSSOP-14 surface-mount package. It provides high drive capability with output currents of ±24 mA. Propagation delays are specified at 6.5 ns at 2.7 V and 6 ns at 3.3 V. The component supports 5 V tolerant I/O interfaces, ensuring compatibility with mixed-voltage systems while maintaining low static current consumption.

Feature Summary

• Provides four independent non-inverting buffer channels for signal conditioning
• Features three-state outputs to facilitate bus-oriented architectures
• Supports 5 V tolerant inputs for seamless interface with higher voltage logic levels
• Operates efficiently within a low voltage range of 2 V to 3.6 V

Applications

• Memory module data buffering
• Clock distribution networks
• Bus-oriented system interconnects

Procurement Notes

Verify the specific ordering suffix DTR2 to confirm the tape-and-reel packaging configuration and quantity per reel. Ensure the component matches the active or obsolete status indicated by the manufacturer, as availability may vary. Cross-reference the full part number against official onsemi databases to validate RoHS compliance and lead time requirements before finalizing procurement orders.

Selection Notes

Select this component when designing low-voltage digital circuits requiring buffered signals with high drive strength. It is suitable for applications needing 5 V tolerance on inputs while operating from lower supply rails. Consider the TSSOP-14 package for space-constrained PCB layouts. Evaluate propagation delay specifications against system timing requirements to ensure signal integrity across the four channels.

Part Context

This component belongs to the 74LCX series of low-voltage CMOS logic devices. It functions as a buffer and line driver, distinct from inverters or transceivers. The LCX series is characterized by its ability to operate at reduced voltages compared to standard 5 V logic families, making it ideal for modern portable and battery-powered electronic designs requiring efficient power management.

Replacement Considerations

The 74LCX125MTC is identified as a direct substitute for the MC74LCX125DTR2. Verify pinout compatibility and electrical specifications before implementation. Note that the MC74LCX125DTR2 may be listed as obsolete by the manufacturer.