74LCX07M

Overview

The onsemi 74LCX07M is a low voltage hex buffer with open drain outputs, fabricated using advanced CMOS technology. It operates within a supply voltage range of 2.0V to 5.5V and features inputs tolerant up to 7V, facilitating interface between 5V and 3V systems. The device provides six non-inverting buffers in a 14-lead SOIC package. Key electrical characteristics include a maximum propagation delay of 3.0ns at VCC=5.0V and a quiescent supply current of 10µA. Output drive capabilities reach +24mA at VCC=3.0V and +32mA at VCC=4.5V–5.5V.

Feature Summary

• Features five-volt tolerant inputs allowing direct interfacing with 5V systems while operating at lower voltages.
• Provides open drain outputs capable of implementing active HIGH wire AND or active LOW wire OR functions.
• Ensures power-down high impedance state for both inputs and outputs to prevent leakage during standby.
• Incorporates proprietary noise and EMI reduction circuitry for improved signal integrity.

Applications

• Interface buffering between 5V logic systems and 3V logic systems.
• Implementing active HIGH wire AND or active LOW wire OR logic functions.
• General purpose buffering for digital signals requiring open drain output configuration.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and tape/reel specifications. Confirm that the part number matches the updated nomenclature standards following the Fairchild Semiconductor integration into ON Semiconductor. Check for any recent product change notices regarding pinout or electrical parameters before finalizing procurement.

Selection Notes

Select this component when an application requires multiple buffered channels with open drain outputs. It is suitable for designs needing 5V tolerance on inputs while powered by lower voltage supplies. Consider the 14-lead SOIC package constraints for PCB layout. Ensure unused inputs are tied to a defined logic level to maintain optimal performance and prevent floating states.

Part Context

This device belongs to the LCX series of low voltage CMOS logic devices from ON Semiconductor. The LCX family is designed for high-speed operation with low power dissipation. The 74LCX07 specifically addresses the need for hex buffers with open drain outputs, distinguishing it from standard push-pull buffer variants within the same logic family.

Replacement Considerations

Check for equivalent parts such as MC74LCX07DTR2G or 74LCX07MTC if different packaging like TSSOP is required. Verify compatibility with existing board layouts when substituting packages. Ensure replacement parts meet the same 5V input tolerance and open drain output requirements.