MC74LCX125DR2

Overview

The MC74LCX125DR2 is a low-voltage quad buffer and line driver manufactured by onsemi. It features four non-inverting buffers with three-state outputs, designed for operation within a 2 V to 3.6 V supply voltage range. The device utilizes CMOS technology and is housed in a 14-SOIC surface-mount package. Key electrical characteristics include a maximum static current of 10 uA and output drive capabilities of -24 mA (high) and 24 mA (low). Propagation delays are specified at 6.5 ns at 2.7 V and 6 ns at 3.3 V. It supports 5 V tolerant I/O interfaces and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Provides four independent non-inverting buffer channels with three-state output control for bus-oriented architectures.
• Supports 5 V tolerant inputs, enabling direct interfacing between 2.5 V/3.3 V logic systems and 5 V peripherals without level shifting.
• Operates over an extended industrial temperature range from -40°C to +85°C for reliable performance in demanding environments.

Applications

• Bus-oriented memory and data acquisition systems
• Clock buffering and distribution circuits
• High-speed data transmission lines

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status through the Material Composition Declaration (MCD) or Certificate of Conformity provided by onsemi. Ensure that the intended application environment remains within the specified operating temperature and voltage limits defined in the datasheet.

Selection Notes

Select this component when designing low-voltage digital systems requiring high-speed signal buffering with 5 V tolerance. The MC74LCX125DR2 is suitable for applications needing three-state outputs to manage shared data buses efficiently. Consider the propagation delay specifications relative to system timing requirements and ensure the SOIC-14 package fits the available PCB footprint constraints.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices produced by onsemi. The LCX family is engineered for high-speed operation while maintaining low power consumption, making it ideal for portable and battery-powered electronics. The MC74LCX125 specifically addresses the need for buffered signals in mixed-voltage environments common in modern embedded systems.

Replacement Considerations

Public records indicate that the MC74LCX125DR2 is obsolete. Verify availability of alternative packages or updated revisions from onsemi before procurement.