SN74HC03DR

Overview

The SN74HC03DR is a quad two-input NAND gate integrated circuit manufactured by Texas Instruments. It features open-drain outputs and operates within a supply voltage range of 2V to 6V. The device supports low logic levels from 0.5V to 1.8V and high logic levels from 1.5V to 4.2V. Static current consumption is maximum 2 µA, with output drive capabilities of -5.2mA for both high and low states. Propagation delay reaches 23ns at 6V with a 50pF load. It functions in temperatures from -40°C to 85°C and is housed in a 14-SOIC package.

Feature Summary

• Contains four independent two-input NAND logic gates
• Provides open-drain output configuration suitable for wired-AND applications
• Operates across a wide supply voltage range from 2V to 6V
• Supports standard CMOS logic levels compatible with various digital systems

Applications

• General-purpose digital logic processing
• Wired-AND bus configurations requiring open-drain outputs
• Interface circuits between different voltage domains
• Signal gating and switching applications

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperature ranges and voltage levels before integration. Cross-reference part numbers with authorized distributors to confirm authenticity and traceability. Check for any recent product change notices that may affect pinout or electrical characteristics.

Selection Notes

Select this component when open-drain NAND functionality is required within the HC series performance envelope. Consider the 14-SOIC package constraints for PCB layout and thermal management. Evaluate the 2V to 6V supply range against system power requirements. Verify that the 23ns propagation delay meets timing constraints for the target application frequency.

Part Context

This device belongs to the SN74HC series of high-speed CMOS logic products. It provides comparable speed to standard LS-TTL logic while maintaining low power consumption typical of CMOS technology. The open-drain variant allows flexible interfacing options not available with push-pull outputs. It is designed for general-purpose digital applications requiring reliable NAND logic operations.

Replacement Considerations

SN74HC03DRE4 is an equivalent part number representing the same functional device with RoHS compliance enhancements.