SN74ALS11AD

Overview

The SN74ALS11AD is a triple 3-input positive AND gate manufactured by Texas Instruments. It belongs to the ALS logic series and operates within a supply voltage range of 4.5 V to 5.5 V. The device features a propagation delay of 19 ns, with a low-level output current of 8 mA and a high-level output current of -400 uA. It is housed in a 14-pin SOIC-Narrow package and supports surface mount installation. The component functions reliably across an operating temperature range from 0°C to +70°C.

Feature Summary

• Contains three independent 3-input AND gates for complex logic implementation
• Utilizes Advanced Low-power Schottky technology for high-speed performance
• Provides TTL-compatible input and output characteristics

Applications

• Digital logic circuit design requiring multi-input AND operations
• Data processing systems utilizing standard TTL logic families
• Industrial control applications compatible with 5V logic levels

Procurement Notes

Verify the specific suffix 'AD' corresponds to the SOIC-14 tube packaging configuration. Confirm that the ALS series designation aligns with required speed and power specifications for the target application. Ensure compatibility with existing PCB footprints designed for narrow SOIC packages before finalizing procurement orders.

Selection Notes

Select this component when multiple independent 3-input AND functions are required in a single package. The ALS series offers a balance between speed and power consumption suitable for general-purpose digital logic. Consider the 19 ns propagation delay against system timing requirements to ensure signal integrity is maintained.

Part Context

This part is part of the SN74ALS family, which represents an evolution of standard 74-series logic with improved speed and lower power dissipation. The 'A' denotes the Advanced variant, while 'LS' indicates Low-power Schottky clamping diodes are integrated to handle transient voltages effectively.

Replacement Considerations

Direct substitutes include other SN74ALS11 variants such as SN74ALS11N or SN74ALS11DR, provided the package type matches the design constraints. Cross-family replacements like SN74S11 may offer different electrical characteristics.