74LCX540WM

Overview

The onsemi 74LCX540WM is an octal buffer and line driver featuring inverted outputs with three-state capability. It belongs to the LCX logic family, designed for low-voltage CMOS applications. The device operates within a supply voltage range of 2.0 V to 3.6 V. It provides high drive current capabilities of 24 mA for both high and low output states. The component supports surface-mount installation in a 20-lead SSOP package. It functions as an inverting buffer, ensuring signal integrity across digital interfaces while maintaining low power consumption characteristics typical of advanced CMOS technology.

Feature Summary

• Octal configuration providing eight independent inverting buffer channels
• Three-state output control allowing bus-oriented connections
• Low voltage operation optimized for 2.0 V to 3.6 V supply ranges
• High drive strength supporting 24 mA output currents

Applications

• Memory module data buffering
• Clock distribution networks
• Consumer electronics signal routing
• Portable computing devices

Procurement Notes

Verify the specific suffix 'WM' against the manufacturer's official datasheet to confirm the exact package type and tape/reel specifications. Ensure the orderable part number matches the required pinout and thermal characteristics. Cross-reference the RoHS compliance status and moisture sensitivity level with current production announcements. Confirm availability through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring low-voltage translation between 3.3 V or 2.5 V logic domains. The LCX series offers superior speed-power product compared to standard HC or HCT families. Consider the 24 mA drive capability for driving moderate capacitive loads without external buffers. Verify that the operating temperature range meets the environmental requirements of the target application.

Part Context

This device is part of the broader 74LCX540 family of octal buffers. It shares functional similarities with other low-voltage CMOS drivers but is distinct from higher voltage HC or HCT variants. The LCX technology utilizes advanced CMOS processes to achieve lower switching thresholds and reduced power dissipation. It serves as a critical interface component in modern digital systems transitioning from traditional 5 V logic levels.

Replacement Considerations

Public confirmed substitute part numbers include MC74LCX540DWR2G and MM74LCX540MTCX.