74LCX540MSAX

Overview

The 74LCX540MSAX is an octal buffer and line driver manufactured by onsemi, belonging to the LVC/LCX/Z logic series. It features inverted outputs with three-state capability, housed in a 20-pin SSOP plastic package. The device operates within a supply voltage range of 1.65 V to 3.6 V, supporting low-voltage CMOS applications. It provides high drive current capabilities suitable for driving bus lines and memory interfaces.

Feature Summary

• Octal configuration providing eight independent buffered channels
• Inverted output polarity for signal inversion applications
• Three-state outputs allowing isolation when disabled
• Low power consumption design compatible with 3.3V systems

Applications

• Memory address and data bus buffering
• Clock distribution networks
• General-purpose digital signal routing
• Portable battery-powered equipment

Procurement Notes

Verify the specific suffix MSAX against the manufacturer's official datasheet to confirm the tape and reel packaging configuration. Ensure the component matches the required operating temperature range and voltage specifications for the target application environment before procurement.

Selection Notes

Select this component for designs requiring low voltage operation between 1.65 V and 3.6 V. The inverted output characteristic distinguishes it from non-inverting buffers like the 74LCX244. Consider the SSOP-20 package constraints for PCB layout and thermal management requirements.

Part Context

This part belongs to the 74LCX family of low-voltage CMOS logic devices. It serves as a standard interface solution for connecting 3.3V logic circuits to other low-voltage components. The LCX series is designed to replace older LVC or HC families where lower voltage operation is necessary.

Replacement Considerations

Check for direct pin-compatible alternatives such as the MC74LCX540 or equivalent parts from other manufacturers that specify identical electrical characteristics and the same SSOP-20 footprint.