CD74ACT540M

Buffers, Drivers, Receivers, Transceivers Overview

The CD74ACT540M is an octal inverting buffer and line driver manufactured by Texas Instruments. It features three-state outputs controlled by a low-active enable signal. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes ACT logic technology for high-speed performance with reduced power dissipation. The component is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package. It supports bidirectional data bus transmission and provides significant load driving capability.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Octal configuration providing eight independent inverting buffers
• Three-state output architecture allowing direct connection to bus lines
• Low-active output enable control mechanism
• ACT CMOS technology ensuring high speed and low power consumption

Buffers, Drivers, Receivers, Transceivers Applications

• Bidirectional data bus-oriented transmission
• Clock drivers requiring high current and high speed
• Memory and memory characterization

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'M' corresponds to the SOIC-20 package variant in official datasheets. Confirm that the ACT logic family specifications align with system requirements, particularly regarding the 4.5 V to 5.5 V operating voltage range. Ensure compatibility with existing board layouts designed for standard SOIC footprints.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when high-speed inversion and bus driving are required within a 5 V logic environment. The ACT series offers faster propagation delays compared to HC or HCT counterparts while maintaining lower power than older ALS families. Verify that the input voltage levels are compatible with the driving source within the specified 4.5 V to 5.5 V supply constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the Texas Instruments 74ACT logic family, which bridges the performance gap between standard AC logic and TTL-compatible HCT logic. The CD74ACT540 specifically addresses applications needing octal buffering with tri-state capabilities. It serves as a critical interface component in digital systems requiring robust signal integrity and high fan-out capacity.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include the CD74HC540 for slower, wider voltage range applications, and the CD74HCT540 for TTL-compatible inputs. Direct pin-for-pin replacements within the ACT family may include other manufacturers' equivalents meeting the same SOIC-20 and electrical specifications.