SN74LS05D

Inverter Gates Overview

The SN74LS05D is a hex inverter manufactured by Texas Instruments, featuring six independent inverters with open-collector outputs. It operates within a supply voltage range of 4.75V to 5.25V and supports a low-level output current of up to 8mA. The device utilizes TTL logic levels, with high-level input voltage minimums at 2V and low-level input voltage maximums at 0.8V. Designed for surface-mount applications, it is housed in a 14-pin SOIC package and functions reliably across an operating temperature range of 0°C to 70°C.

Inverter Gates Feature Summary

• Contains six independent inverters with open-collector outputs requiring external pullup resistors
• Supports active-low wired-OR or active-high wire-AND functions when connected to other open-collector outputs
• Designed to generate high VOH levels suitable for interfacing with various logic families

Inverter Gates Applications

• Signal inversion in digital logic circuits
• Implementing wired-OR or wire-AND logic configurations
• Generating higher output voltage levels for specific interface requirements

Inverter Gates Procurement Notes

Verify the manufacturer designation on the component marking; the part number indicates Texas Instruments production despite the user prompt specifying onsemi. Confirm the 'D' suffix corresponds to the standard SOIC package and check RoHS compliance status via the latest packaging addendum. Ensure the ordering suffix matches the required tape-and-reel or tube quantity specifications.

Inverter Gates Selection Notes

Select this component when a hex inverter with open-collector outputs is required for driving loads that necessitate external pullup resistors. It is appropriate for designs needing wired-logic capabilities or level shifting to higher voltages. Consider the 74LS series characteristics regarding power consumption and speed relative to other logic families available from the same manufacturer.

Inverter Gates Part Context

This device belongs to the SN74LS05 family of hex inverters with open-collector outputs. It is part of the broader 74-series logic product line, specifically the Low-power Schottky (LS) variant, which balances power dissipation with switching speed. The D suffix denotes the Plastic Small-Outline (SOIC) package option.

Inverter Gates Replacement Considerations

SN74LS05DR

Inverter Gates FAQ

Why are pullup resistors required for the SN74LS05D?

The SN74LS05D features open-collector outputs, which can only sink current to ground. To achieve a high logic state, an external pullup resistor must be connected between the output and the supply voltage.

Can the SN74LS05D be used for wired-logic operations?

Yes, the open-collector outputs allow multiple devices to be connected together to implement active-low wired-OR or active-high wire-AND functions without short-circuit risks.