SN74ALS09N

Overview

The SN74ALS09N is a quadruple 2-input positive-AND gate from the Texas Instruments SN74ALS series. It features open-collector outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides an IOL (max) of 8 mA and an IOH (max) of -400 uA, with an average propagation delay of 15 ns. It is housed in a 14-pin PDIP package and supports through-hole mounting for commercial temperature applications ranging from 0 °C to +70 °C.

Feature Summary

• Contains four independent 2-input AND logic gates
• Features open-collector output configuration
• Provides high-speed operation with low power dissipation characteristics typical of ALS technology

Applications

• Digital logic circuits requiring AND functionality
• Bus-oriented systems utilizing open-collector outputs
• General-purpose logic applications in commercial electronics

Procurement Notes

Verify that the specific part number suffix 'N' corresponds to the PDIP-14 through-hole package variant rather than surface-mount options like 'DR'. Confirm the manufacturer is Texas Instruments and check RoHS compliance status as indicated in official documentation. Ensure the order matches the open-collector output specification distinct from standard push-pull variants.

Selection Notes

Select this component when designing circuits requiring multiple AND gates with open-collector outputs for wired-logic capabilities. The ALS series offers a balance between speed and power consumption suitable for general digital applications. Consider the 14-pin DIP package if through-hole assembly is required for the target PCB design.

Part Context

This component belongs to the SN74ALS family of advanced small-scale integration logic devices. It serves as a fundamental building block for combinational logic designs. The SN74ALS09N specifically addresses needs for quad 2-input AND operations with open-drain style outputs, differing from standard TTL or HC families in drive strength and speed characteristics.

Replacement Considerations

Compatible substitutes include other SN74ALS09 variants such as SN74ALS09DR (SOIC package). Cross-reference with SN74S09N for similar functionality but note differences in propagation delay and current drive specifications between Schottky and ALS technologies.