SN54F27, SN74F27
TRIPLE 3-INPUT POSITIVE-NOR GATES
SDFS042A – MARCH 1987 – REVISED OCTOBER 1993 SN54F27 . J PACKAGE
SN74F27 . D OR N PACKAGE
(TOP VIEW) Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs 1A
1B
2A
2B
2C
2Y
GND description
These devices contain three independent 3-input
NOR gates. They perform the Boolean functions
Y = A B C or Y = A + B + C in positive logic.
The SN54F27 is characterized for operation over
the full military temperature range of – 55°C to
125В°C. The SN74F27 is characterized for
operation from 0В°C to 70В°C. 1B
1C
2A …
