CD74HCT240PW

Overview

The CD74HCT240PW 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 utilizes a 20-pin TSSOP package and operates within a supply voltage range of 4.5V to 5.5V. The component supports a load capacitance of 50 pF and features two active-low output enables for control. It is designed for industrial temperature ranges from -55°C to +125°C.

Feature Summary

• Octal buffering capability with inverting logic function
• Three-state output architecture allowing bus driving applications
• Dual active-low output enable controls for signal management

Applications

• Signal buffering in digital systems
• Line driving for data transmission
• Bus-oriented memory and interface circuits

Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-20 package configuration during sourcing. Confirm RoHS compliance status and lead times directly with authorized distributors or Texas Instruments representatives prior to order placement. Ensure environmental specifications match the intended operational temperature requirements.

Selection Notes

Select this component when eight-channel inverting buffering with three-state isolation is required. The HCT series ensures compatibility with standard TTL logic levels while maintaining CMOS power efficiency. Verify that the 20-pin TSSOP footprint fits the target PCB layout constraints before finalizing the design.

Part Context

This part belongs to the CD74HCT240 family of octal buffers. It shares functional similarities with other Texas Instruments HCT logic devices but is distinct in its eight-channel configuration and three-state output capability. The PW suffix specifically denotes the thin-shrink small-outline package variant used in surface-mount assemblies.

Replacement Considerations

Direct substitutes include the CD74HCT240PWR (reel version) and SN74HCT240PW. Cross-reference pinouts and electrical characteristics carefully when considering alternative manufacturers' equivalents to ensure functional parity.