SN7406NSR

Overview

The SN7406NSR is a hex inverter buffer manufactured by Texas Instruments, belonging to the standard 7400 logic series. It features six independent inverting channels with open-collector outputs capable of handling high-voltage loads. The device operates within a supply voltage range of 4.75 V to 5.25 V and draws a typical operating current of 51 uA. Packaged in a surface-mount SOIC-14 format, it exhibits a propagation delay of 23 ns at 5 V. The component supports low-level output currents up to 40 mA and functions reliably across an operating temperature range from 0°C to +70°C.

Feature Summary

• Integrates six independent inverting buffers within a single package for space-efficient circuit design.
• Features open-collector outputs designed to interface with higher voltage loads beyond standard logic levels.
• Provides robust low-level sink current capability suitable for driving various digital and analog loads.

Applications

• High-voltage switching applications requiring isolation between logic and load circuits
• TTL-to-CMOS level shifting interfaces
• General-purpose digital signal inversion in industrial control systems

Procurement Notes

Verify the specific suffix 'SR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the SOIC-14 footprint matches the target PCB layout dimensions. Ensure the 7400 series logic family compatibility aligns with existing system voltage and timing requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require multiple inverted signals with high-voltage tolerance capabilities. The open-collector architecture allows for wired-OR connections and flexible pull-up resistor selection. Consider the 23 ns propagation delay for timing-sensitive applications and ensure the 40 mA sink current meets the load requirements without exceeding thermal limits.

Part Context

This part belongs to the widely adopted SN7400 series of bipolar logic integrated circuits. The SN7406 variant specifically addresses applications needing high-voltage output stages. As a surface-mount device, it facilitates modern PCB manufacturing techniques while maintaining compatibility with traditional through-hole designs via equivalent DIP packages.

Replacement Considerations

SN7406DR serves as a parameter-equivalent alternative from Texas Instruments in a similar SOIC package. For legacy through-hole designs, the SN74LS06N offers comparable functionality with slight variations in power consumption characteristics.