74LCX540SJ

Overview

The onsemi 74LCX540SJ is an octal buffer and line driver featuring inverted outputs, belonging to the 74LCX logic family. It utilizes CMOS technology and provides three-state outputs for bus-oriented applications. The device operates within a supply voltage range of 2.0V to 3.6V and supports 5V tolerant inputs. It is housed in a 20-pin Small Outline Package (SOP) with a shrink pitch, designed for surface mount installation.

Feature Summary

• Octal configuration with inverted output polarity
• Three-state output capability for bus driving
• 5V tolerant input structure compatible with mixed voltage systems
• Low power consumption due to advanced CMOS fabrication

Applications

• Bus-oriented memory and data register interfacing
• Clock drivers and buffering
• High-density microprocessor systems
• Consumer electronics requiring low voltage operation

Procurement Notes

Verify the specific suffix SJ against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component status is active, as older revisions may be obsolete. Cross-reference the ordering code with official distributor catalogs to validate authenticity and avoid counterfeit components.

Selection Notes

Select this component when designing systems requiring an octal buffer with inverted logic levels and low voltage operation between 2.0V and 3.6V. It is suitable for applications needing 5V tolerant inputs to interface with higher voltage control signals while maintaining low power dissipation characteristics typical of the LCX series.

Part Context

This part belongs to the 74LCX series of low-voltage CMOS logic devices manufactured by onsemi. The series is characterized by high speed and low power consumption, making it ideal for portable and battery-operated applications. The 74LCX540 specifically functions as an octal buffer with inverted outputs, distinct from non-inverting variants like the 74LCX245.