74LCX540WMX

Overview

The onsemi 74LCX540WMX is an octal buffer and line driver utilizing advanced CMOS technology. It features eight non-inverting channels with three-state outputs, designed for high-speed data transmission applications. The device operates within a supply voltage range of 2.0 V to 3.6 V, ensuring compatibility with low-voltage logic systems. Key electrical parameters include a propagation delay of 7.5 ns at 2.7 V and 6.5 ns at 3.3 V. Output drive capabilities are specified at 24 mA for both high and low states, while static current consumption remains low at 10 uA. The component is housed in a 20-SOIC surface-mount package and supports industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent non-inverting signal paths
• Three-state output architecture enabling efficient bus-oriented connections
• Low power consumption characteristics suitable for battery-operated devices
• High noise immunity and ESD protection integrated into the CMOS structure

Applications

• Clock distribution circuits requiring precise timing signals
• Memory module address and data bus buffering
• Portable equipment utilizing low-voltage logic interfaces
• Consumer electronics demanding high-density signal routing

Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel quantity matches your assembly requirements. Ensure the procurement channel provides valid RoHS compliance documentation. Cross-reference the manufacturer part number against official datasheets to avoid counterfeit components. Confirm that the received units match the 20-SOIC package dimensions and pinout specifications before integration into the design.

Selection Notes

Select this component when designing systems requiring octal buffering with non-inverting logic functions. It is appropriate for applications needing operation between 2.0 V and 3.6 V with moderate speed requirements. Consider the 24 mA drive strength for driving capacitive loads or standard TTL/CMOS inputs. Evaluate the 20-SOIC footprint against available PCB space constraints during the layout phase.

Part Context

This device belongs to the 74LCX series of low-voltage CMOS logic ICs produced by onsemi. The series is engineered to replace older 5 V logic families in modern low-power designs. The 74LCX540 variant specifically addresses the need for multi-channel buffering in compact electronic assemblies. It shares functional similarities with other octal buffers but distinguishes itself through optimized low-voltage performance metrics.

Replacement Considerations

Direct substitutes may include the MM74HC540WMX for higher voltage tolerance or the MC74LCX540SDR2 for alternative packaging. Verify pin compatibility and electrical specifications before swapping components. Ensure that any replacement maintains the required 3-state output functionality and non-inverting logic polarity.