These devices contain four independent 2-input positive-NOR gates. They perform the Boolean functions Y = A + B or Y = A • B in positive logic.
The SN54ALS02A and SN54AS02 are characterized for operation over the full military temperature range of −55°C to 125°C. The SN74ALS02A and SN74AS02 are characterized for operation from 0°C to 70°C.
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