SDFS042A - MARCH 1987 - REVISED OCTOBER 1993
These devices contain three independent 3-input NOR gates. They
perform the Boolean functions
or
in positive
logic.
The SN54F27 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F27 is characterized for operation from 0°C to 70°C.