SDAS193 - D2661, APRIL 1982 - REVISED MAY 1986
These devices contain four independent 2-input NOR buffer gates.
They perform the Boolean functions
or Y = A\•B\ in positive logic.
The SN54ALS28A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS28A is characterized for operation from 0°C to 70°C.