D2661, APRIL 1982 - REVISED MAY 1986
These devices contain two independent 4-input NAND buffers. They
perform the Boolean functions
or Y = A\+B\+C\+D\ positive logic.
The SN54ALS1020A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS1020A is characterized for operation from 0°C to 70°C.