CD74HCT240PWT

Overview

The CD74HCT240PWT is a high-speed CMOS logic device manufactured by Texas Instruments. It functions as an inverting octal buffer and line driver featuring three-state outputs. The component utilizes a 20-TSSOP surface-mount package. It operates within a supply voltage range of 4.5V to 5.5V. The device supports an operating temperature range from -55°C to 125°C. It includes two active-low output enables for control.

Feature Summary

• High-speed CMOS technology ensures rapid signal propagation.
• Octal configuration provides eight independent inverting channels.
• Three-state outputs allow direct connection to bus structures.
• Dual active-low enables facilitate complex system control.

Applications

• Bus-oriented systems requiring signal buffering
• Clock drivers for high-speed digital circuits
• Memory module address and data line drivers

Procurement Notes

Verify the specific suffix 'PWT' against manufacturer documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with 4.5V to 5.5V supply rails. Confirm RoHS3 compliance requirements match project specifications. Validate thermal management needs for the TSSOP-20 package under maximum load conditions.

Selection Notes

Select this component when designing systems requiring eight-channel inversion with bus isolation capabilities. The HCT series ensures TTL-compatible input thresholds while maintaining CMOS low power consumption. Consider the wide industrial temperature range for harsh environments. Verify that the three-state functionality aligns with the target bus architecture's electrical constraints.

Part Context

This part belongs to the CD74HCT240 family of octal buffers. It shares functional similarities with SN74HCT240 variants but differs in packaging and manufacturing lot specifics. The device is part of Texas Instruments' broader high-speed CMOS logic portfolio designed for general-purpose digital applications.

Replacement Considerations

SN74HCT240PWR serves as a primary alternative with identical logical function and pinout. Verify package dimensions and electrical characteristics before substitution. Cross-reference datasheets to ensure equivalent switching speeds and drive currents.