CD74HC540E

Overview

The CD74HC540E is an octal inverting buffer and line driver manufactured by Texas Instruments. It belongs to the HC logic series and features three-state outputs for bus-oriented applications. The device operates within a supply voltage range of 2 V to 6 V. Key electrical parameters include a high-level output current of -7.8 mA and a low-level output current of 7.8 mA. Static current is specified at 8 uA, with a maximum operating power supply current of 80 uA. It supports a wide temperature range from -55 °C to +125 °C and is housed in a PDIP-20 package.

Feature Summary

• Octal inverting buffer configuration with three-state outputs
• High-speed CMOS technology for efficient operation
• Wide operating voltage range suitable for various digital systems

Applications

• Bus-oriented memory and data acquisition systems
• Clock drivers
• Bus specification drivers

Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the component matches the required HC logic family specifications and PDIP-20 packaging. Check RoHS compliance status as indicated in the official datasheet. Ensure the supplier provides valid traceability documents for industrial or commercial procurement requirements.

Selection Notes

Select this component when an octal inverting buffer with three-state capability is required. The HC series offers high speed while maintaining low power consumption. Consider the wide temperature range if the application involves harsh environments. Verify that the input voltage levels are compatible with the system logic standards before implementation.

Part Context

This component is part of the Texas Instruments 74HC series of high-speed CMOS logic devices. It serves as a standard solution for driving buses and providing signal buffering in digital circuits. The device is designed to interface between microprocessors and peripheral devices, ensuring signal integrity across multiple lines.