SN74HC05NSR

Overview

The SN74HC05NSR is a hex inverter integrated circuit manufactured by Texas Instruments, belonging to the 74HC logic family. It features six independent inverters with open-drain outputs, designed for low-power CMOS applications. The device operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -40°C to +85°C. Packaged in a 14-pin SOIC (Small Outline Integrated Circuit) format, it provides high noise immunity and compatibility with standard CMOS logic levels.

Feature Summary

• Contains six independent inverting channels for signal inversion tasks
• Utilizes open-drain output configuration suitable for wired-AND connections
• Operates across a broad supply voltage spectrum from 2V to 6V
• Ensures robust performance with high noise immunity typical of HC technology

Applications

• General-purpose digital signal inversion in consumer electronics
• Interface circuits requiring open-drain pull-down capabilities
• Level shifting between different voltage domains in mixed-signal systems
• Clock signal conditioning and buffering in microcontroller peripherals

Procurement Notes

Verify the package type matches the required 14-SOIC footprint during procurement. Confirm that the open-drain output characteristic aligns with the target circuit design, as external pull-up resistors may be necessary for proper high-state operation. Ensure the supplier provides documentation confirming compliance with RoHS standards for environmental regulations.

Selection Notes

Select this component when six inverted signals are needed with open-drain flexibility. It is appropriate for designs requiring operation below 5V or up to 6V. Consider alternative packages if surface area constraints differ from the SOIC dimensions. Verify input voltage thresholds match the driving source logic levels to ensure reliable switching behavior.

Part Context

This part belongs to the Texas Instruments SN74HC series, which offers high-speed CMOS logic with speeds comparable to TTL but lower power consumption. The '05' suffix specifically denotes hex inverters with open-drain outputs, distinguishing it from standard push-pull variants like the SN74HC04. The 'NSR' suffix indicates the specific SOIC package and tape-and-reel packaging format.

Replacement Considerations

Direct substitutes include SN74HC05DR and SN74HC05N, provided the package type (SOIC vs. DIP) is compatible with the PCB layout. Cross-manufacturer equivalents such as M74HC05RM13TR may function similarly but require verification of pinout and electrical characteristics against the original datasheet.