SDAS085B - APRIL 1982 - REVISED DECEMBER 1994
These devices contain two independent 4-input positive-AND gates.
They perform the Boolean functions
or
in positive
logic.
The SN54ALS21A and SN54AS21 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS21A and SN74AS21 are characterized for operation from 0°C to 70°C.