This document describes four models of quadruple 2-input positive-NOR gates: SN54ALS02A, SN54AS02, SN74ALS02A, and SN74AS02. They are characterized for operation over the full military temperature range of -55°C to 125°C. These gates perform the Boolean functions Y = A + B or Y = A • B in positive logic.
The document describes the SN54ALS02A, SN54AS02, SN74ALS02A, and SN74AS02 devices, which contain four independent 2-input positive-NOR gates. These components perform the Boolean functions Y = A+B or Y=AeB in positive logic.
The datasheet details performance specifications for military-grade (SN54) and commercial-grade (SN74) variants across various package options including Plastic Small-Outline, Ceramic Chip Carriers, and standard DIPs. It includes tables for absolute maximum ratings, recommended operating conditions, electrical characteristics over temperature ranges, and switching characteristics with associated test circuit diagrams.
| Number of Gates | Four independent 2-input positive-NOR gates |
|---|---|
| Boolean Function | Y = A+B or Y=AeB in positive logic |
| Military Temp Range (SN54) | -55°C to 125°C |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| High-Level Input Voltage (VIH) | 2 V |
| Low-Level Input Voltage (VIL) | 0.8 V |
| High-Level Output Current (IOH) | -2 mA |
The SN74ALS02A and SN74AS02 are characterized for operation from 0°C to 70°C.
The SN54ALS02A and SN54AS02 are characterized for operation over the full military temperature range of —55°C to 125°C.
The recommended operating conditions specify a supply voltage (VCC) between 4.5 V and 5.5 V.