SN74AHC05D

Overview

The SN74AHC05D is a hex inverter with open-drain outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and supports an operating temperature range from -40°C to +85°C. The device utilizes AHC logic series technology and features six independent inverters performing the Boolean function Y = NOT A. It is housed in a 14-pin SOIC (D) package.

Feature Summary

• Contains six independent inverters providing high-density logic inversion capabilities
• Features open-drain outputs that require external pullup resistors for proper operation
• Supports wired-OR or wired-AND functions when connected to other open-drain outputs
• Provides robust ESD protection exceeding JESD 22 standards

Applications

• Implementing active-low wired-OR logic configurations
• Implementing active-high wired-AND logic configurations
• General-purpose signal inversion in digital circuits

Procurement Notes

Verify the specific ordering suffix to confirm the package type, as the base part number covers multiple variants including tube and tape-and-reel options. Confirm the status of the SN74AHC05D, as it may be obsolete compared to the SN74AHC05DR variant. Ensure compatibility with required operating temperatures and voltage levels before procurement.

Selection Notes

Select this component when six independent inverters with open-drain outputs are required. It is suitable for applications needing wired-logic implementations. Consider the SN74AHC05DR if tape-and-reel packaging is preferred over tubes. Verify that the system design includes necessary pullup resistors for the open-drain outputs.

Part Context

This device belongs to the SN74AHC05 family of hex inverters with open-drain outputs. It is part of the broader AHC logic series, designed for low-power and high-speed CMOS applications. The D package denotes a standard Small Outline Integrated Circuit form factor.

Replacement Considerations

The SN74AHC05DR is a direct replacement offering the same functionality in a tape-and-reel format. Other packages such as SSOP (DB) or TSSOP (PW) provide alternative physical footprints with identical electrical characteristics.