SN74AS02N

Overview

The SN74AS02N is a quadruple 2-input positive-NOR gate from the Texas Instruments SN74AS series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an output current capability of 2 mA high and 20 mA low. The device features a maximum propagation delay of 4.5 ns at 5 V with a 50 pF load. It is housed in a 14-pin dual in-line package (PDIP) and functions reliably across an operating temperature range of 0°C to 70°C.

Feature Summary

• Provides four independent 2-input NOR logic functions within a single integrated circuit
• Delivers high-speed performance with a propagation delay of 4.5 ns under standard loading conditions
• Offers robust bipolar drive strength with a low-level output current capability of 20 mA

Applications

• High-speed digital logic circuits requiring NOR functionality
• Data acquisition systems utilizing TTL-compatible interfaces
• Microprocessor-based systems for address decoding or control logic

Procurement Notes

Verify that the specific part number matches the required PDIP-14 through-hole package configuration. Confirm compliance with RoHS directives if environmental regulations apply to the assembly process. Ensure the supply voltage remains strictly within the 4.5 V to 5.5 V range to maintain specified electrical characteristics and prevent device damage during operation.

Selection Notes

Select this component when bipolar speed and drive strength are prioritized over power consumption. The SN74AS series offers faster switching than standard LS devices but consumes more power. This part is suitable for applications where signal integrity and timing margins are critical, provided the thermal management can accommodate the higher static and dynamic power dissipation inherent to the AS technology family.

Part Context

This device belongs to the SN74AS (Advanced Schottky) logic family, designed to provide superior speed compared to earlier generations while maintaining compatibility with standard TTL input levels. The SN74AS02N specifically implements NOR logic, serving as a fundamental building block for complex combinational logic designs in industrial and commercial electronic equipment manufactured by Texas Instruments.

Replacement Considerations

SN74S02N: Equivalent speed and function in the standard Schottky family.