SN7405DR

Gates And Inverters - Multi-Function, Configurable Overview

The SN7405DR is a hex inverter with open-collector outputs belonging to the Texas Instruments 7400 logic series. It operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to 70°C. The device features six independent inverters housed in a 14-pin SOIC package. Electrical characteristics include a low-level output current capability of 16 mA and a high-level output leakage current of up to 0.25 mA. Propagation delay times are specified as 55 ns maximum for low-to-high transitions and 15 ns maximum for high-to-low transitions at a 5 V supply.

Gates And Inverters - Multi-Function, Configurable Feature Summary

• Contains six independent inverting channels
• Outputs utilize open-collector configuration requiring external pull-up resistors
• Supports active-low wired-OR or active-high wire-AND logic functions

Gates And Inverters - Multi-Function, Configurable Applications

• Implementing active-low wired-OR logic connections
• Generating high VOH levels through external pull-ups
• Connecting multiple open-collector outputs for combined logic operations

Gates And Inverters - Multi-Function, Configurable Procurement Notes

Verify that the specific orderable part number matches the required package style, as the SN7405 family includes variants such as SN74LS05 and SN74S05 which differ electrically. Confirm the suffix indicates the tape and reel packaging format intended for surface mount assembly. Ensure the component meets the necessary RoHS compliance standards for the target manufacturing process.

Gates And Inverters - Multi-Function, Configurable Selection Notes

Select this component when standard TTL inversion with open-collector outputs is required. The device is suitable for interfacing with higher voltage loads via appropriate pull-up resistors. Consider the propagation delay specifications if timing constraints exist within the circuit design. Verify compatibility with the system's power supply voltage limits before integration.

Gates And Inverters - Multi-Function, Configurable Part Context

This device belongs to the Texas Instruments 7400 logic family, specifically designed for general-purpose digital applications. The SN7405 variant provides standard bipolar performance, distinct from the lower power LS or faster S series counterparts. It serves as a fundamental building block for digital logic circuits requiring signal inversion and open-drain output capabilities.

Gates And Inverters - Multi-Function, Configurable Replacement Considerations

SN74LS05DR offers lower power consumption but reduced drive current. SN74S05DR provides faster switching speeds with higher power dissipation. Cross-referencing requires verifying pinout compatibility and ensuring electrical parameters meet the specific application requirements.