These devices contain four independent 2-input positive-AND gates.
They perform the Boolean functions Y = A \x95 B or in positive logic. The
open-collector outputs require pullup resistors to perform correctly.
These outputs 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
The SN54ALS09 is characterized for operation over the full
military temperature range of -55°C to 125°C. The SN74ALS09
is characterized for operation from 0°C to 70°C.
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