SDAS008A - MARCH 1984 - REVISED MAY 1986
These devices contain three independent 3-input NAND gates with
open-collector outputs. These gates perform the Boolean functions
or Y = A\+B\+C\ in positive logic.
The open-collector outputs require pullup resistors to perform
correctly. They may be connected to other open-collector outputs to
implement active-low wired-OR or active-high wired-AND functions.
Open-collector devices are often used to generate higher
VOH levels.
The SN54ALS12A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS12A is characterized for operation from 0°C to 70°C.