MC74LCX540DWR2G

Overview

The MC74LCX540DWR2G is an octal buffer and line driver manufactured by onsemi, belonging to the LCX logic family. It features eight inverting outputs with three-state capability, housed in a 20-SSOP surface-mount package. The device operates within a supply voltage range of 1.65V to 3.6V, supporting low-voltage digital systems. It provides high-speed performance suitable for memory and microcontroller applications.

Feature Summary

• Octal configuration with inverting logic function
• Three-state output control for bus driving
• Low voltage operation compatible with 3.3V systems
• Surface mount SSOP packaging for compact designs

Applications

• Memory module data buffering
• Microcontroller I/O expansion
• Portable battery-powered devices
• Consumer electronics signal routing

Procurement Notes

Verify RoHS compliance status as historical LCX variants may differ. Confirm package marking codes match current manufacturing standards. Check for obsolescence notices or PCN updates affecting availability. Ensure supplier documentation references the specific DWR2G suffix for tape and reel packaging requirements.

Selection Notes

Select this component when designing low-voltage 3.3V logic interfaces requiring octal buffering. Compare propagation delay specifications against system timing requirements. Evaluate power consumption benefits over higher voltage CMOS families. Consider pin compatibility with existing 74LCX540 footprints during PCB layout planning.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices. It serves as a standard octal buffer within onsemi's portfolio. The device complements non-inverting counterparts like the 74LCX541. It supports general-purpose digital signal processing tasks in modern electronic equipment.

Replacement Considerations

Direct substitutes include MC74LCX540MTCR2G and MC74LCX540DTR2G. Verify equivalent electrical characteristics before substitution.