74HCT540TVELL-E

Overview

The 74HCT540TVELL-E is an octal buffer and line driver manufactured by Renesas Electronics Corporation. It features eight inverting outputs with three-state capability, allowing multiple drivers to share a bus. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes CMOS technology for low power consumption while providing high output current suitable for driving LSTTL loads. The component is housed in a TSSOP-20 package.

Feature Summary

• Provides eight inverting buffer channels with three-state output control
• Operates on a single 5V logic supply rail
• Features high noise immunity typical of HCT CMOS technology

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• Line drivers for data transmission

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout and electrical specifications. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference the manufacturer code to distinguish between original Renesas production and potential third-party listings.

Selection Notes

Select this component when an inverting octal buffer with three-state functionality is required for 5V digital systems. It serves as a direct replacement for standard 74HCT540 devices. Consider the TSSOP-20 package constraints for PCB layout. Verify that the input voltage levels are compatible with the driving logic family.

Part Context

This part belongs to the HD/RD74HC series family of general-purpose logic ICs. It is designed for 5V drive applications using bipolar-compatible logic standards. The series provides a balance of speed and power efficiency for embedded systems requiring robust signal buffering.

Replacement Considerations

Standard equivalents include the generic 74HCT540 from various manufacturers. Verify pin compatibility before substitution.