SN74ALS05AD

Overview

The SN74ALS05AD is a hex inverter manufactured by Texas Instruments, belonging to the Advanced Low-Power Schottky (ALS) logic family. It features six independent inverters with open-collector outputs, designed for operation within a supply voltage range of 4.5 V to 5.5 V. The device utilizes bipolar technology and is housed in a 14-pin SOIC package. Key electrical characteristics include a low-level output current capability of 8 mA and a propagation delay of 50 ns. It operates reliably across an extended temperature range from 0°C to +70°C.

Feature Summary

• Hex inverter configuration with open-collector outputs
• Advanced Low-Power Schottky (ALS) logic technology
• Bipolar construction for high-speed performance
• Wide operating temperature range support

Applications

• Signal inversion in digital logic circuits
• Bus line driving applications requiring open-collector interfaces
• Interface bridging between different logic families
• Pull-up resistor dependent switching circuits

Procurement Notes

Verify the specific suffix 'AD' corresponds to the SOIC-14 package variant when sourcing. Confirm that the ALS series availability aligns with current production status, as legacy components may have limited stock or end-of-life implications. Ensure compatibility with 5V supply rails and check for any RoHS compliance documentation required for your specific manufacturing region.

Selection Notes

Select this component when open-collector outputs are necessary for wired-AND configurations or level shifting. The ALS family offers a balance of speed and power consumption superior to standard TTL but higher than CMOS alternatives. Consider the 50 ns propagation delay against system timing requirements. Verify that the 8 mA sink current meets the load requirements of the connected circuitry.

Part Context

This part belongs to the SN74ALS05A series, which provides hex inverters with open-collector outputs. The 'AD' suffix specifically denotes the surface-mount SOIC-14 package variant. It is part of Texas Instruments' broader portfolio of bipolar logic devices designed for robust performance in industrial and commercial environments.

Replacement Considerations

Direct pin-compatible replacements within the same ALS family include other SN74ALSxxAD variants if the logic function differs. For functional equivalents, consider SN74LS05AD, though note differences in speed and power consumption. Cross-family replacements like SN74HC05 require careful voltage level and drive strength analysis.