SN74F21
SN74F21 is Dual 4-Input Positive-AND Gates manufactured by Texas Instruments.
- Package Options Include Plastic
Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description
These devices contain two independent 4-input AND gates. They perform the Boolean functions Y = A
- B
- C
- D or Y = A + B + C + D in positive logic.
The SN54F21 is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74F21 is characterized for operation from 0°C to 70°C.
SN54F21, SN74F21 DUAL 4ĆINPUT POSITIVEĆAND GATES
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SDFS006A
- MARCH 1987
- REVISED OCTOBER 1993
SN54F21 . . . J PACKAGE SN74F21 . . . D OR N PACKAGE
(TOP VIEW)
1A 1 1B 2 NC 3 1C 4 1D 5 1Y 6 GND 7
14 VCC 13 2D 12 2C 11 NC 10 2B 9 2A 8 2Y
SN54F21 . . . FK PACKAGE (TOP VIEW)
2D
1A
1B
FUNCTION TABLE (each gate)
INPUTS
OUTPUT
L logic symbol†
1...
