CD74HCT240M

Overview

The CD74HCT240M is a high-speed CMOS logic device manufactured by Texas Instruments, functioning as an inverting octal buffer and line driver with three-state outputs. It operates within a supply voltage range of 4.5V to 5.5V and features two active-low output enables for bus-oriented control. The component utilizes a 20-pin SOIC surface-mount package and supports an operating temperature range from -55°C to 125°C.

Feature Summary

• Provides eight inverting buffer channels with three-state output capability for efficient bus management.
• Features two active-low output enable inputs to facilitate controlled data transmission on shared lines.
• Constructed using high-speed CMOS technology to ensure low power consumption and compatibility with standard TTL logic levels.

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffered clock circuits
• Transceiver buses for data communication

Procurement Notes

Verify the specific suffix 'M' indicates the SOIC-20 package configuration when sourcing. Confirm RoHS compliance status and lead times directly with authorized distributors or Texas Instruments representatives prior to ordering. Ensure the procurement channel provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component for designs requiring eight-channel inversion with tri-state isolation. It is suitable for applications needing wide temperature operation and CMOS-to-TTL interface compatibility. Consider pinout compatibility with existing PCB layouts if replacing similar octal buffers.

Part Context

This part belongs to the CD74HCT series of high-speed CMOS logic devices. It shares functional similarities with other octal buffers but is distinguished by its specific inverting polarity and three-state control mechanism. The HCT designation ensures compatibility with standard 5V TTL input thresholds.

Replacement Considerations

• CD74HCT240PWR
• SN74HCT240N