SN54F20, SN74F20
DUAL 4-INPUT POSITIVE-NAND GATES
SDFS041A – MARCH 1987 – REVISED OCTOBER 1993 SN54F20 . J PACKAGE
SN74F20 . 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
NC
1C
1D
1Y
GND description
These devices contain two independent 4-input
NAND gates. They perform the Boolean functions
Y = A B C D or Y = A + B + C + D in positive
logic.
The SN54F20 is characterized for operation over
the full military temperature range of – 55°C to
125В°C. The SN74F20 is characterized for
operation from 0В°C to 70В°C. B C D H H H H L L X X X H X L X X H X X L X H X X X L H 13 3 12 4 11 5 10 6 9 7 8 VCC
2D …
