N74F20N View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
N74F20N Datasheet PDF : 8 Pages
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Philips Semiconductors
Dual 4-input NAND gate
Product specification
74F20
TYPE
74F20
TYPICAL
PROPAGATION
DELAY
3.5ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
2.2mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
14-pin plastic DIP
N74F20N
14-pin plastic SO
N74F20D
PKG DWG #
SOT27-1
SOT108-1
PIN CONFIGURATION
D0a 1
D0b 2
NC 3
D0c 4
D0d 5
Q0 6
GND 7
14 VCC
13 D1d
12 D1c
11 NC
10 D1b
9 D1a
8 Q1
SF00065
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
Dna, Dnb, Dnc, Dnd Data inputs
1.0/1.0
Q0, Q1
Data outputs
50/33
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state.
LOAD VALUE HIGH/LOW
20µA/0.6mA
1.0mA/20mA
LOGIC DIAGRAM
1
D0a
2
D0b
4
D0c
5
D0d
VCC = Pin 14
GND = Pin 7
9
D1a
10
D1b
12
D1c
13
D1d
6
Q0
8
Q1
SF00066
FUNCTION TABLE
INPUTS
Dna
Dnb
Dnc
Dnd
L
X
X
X
X
L
X
X
X
X
L
X
X
X
X
L
H
H
H
H
NOTES:
H = High voltage level
L = Low voltage level
X = Don’t care
OUTPUT
Qn
H
H
H
H
L
LOGIC SYMBOL
IEC/IEEE SYMBOL
1 2 4 5 9 10 12 13
D0a D0b D0c D0d D1a D1b D1c D1d
VCC = Pin 14
GND = Pin 7
Q0 Q1
68
SF00067
1
&
2
6
4
5
9
10
8
12
13
SF00068
March 3, 1989
2
853–0332 95935
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