N74ALS02D 查看數據表（PDF） - Philips Electronics
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N74ALS02D Datasheet PDF : 7 Pages
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Philips Semiconductors
Quad 2-input NOR gate
Product specification
74ALS02
TYPE
74ALS02
TYPICAL
PROPAGATION DELAY
4.0ns
TYPICAL
SUPPLY CURRENT
(TOTAL)
1.0mA
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
14-pin plastic DIP
74ALS02N
14-pin plastic SO
74ALS02D
DRAWING
NUMBER
SOT27-1
SOT108-1
PIN CONFIGURATION
1Y 1
1A 2
1B 3
2Y 4
2A 5
2B 6
GND 7
14 VCC
13 4Y
12 4B
11 4A
10 3Y
9 3B
8 3A
SC00006
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74ALS (U.L.)
HIGH/LOW
nA, nB
Data inputs
1.0/1.0
nY
Data output
20/80
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
2 3 5 6 8 9 11 12
1A 1B 2A 2B 3A 3B 4A 4B
2
1
3
5
6
8
1Y 2Y 3Y 4Y
9
11
1 4 10 13
12
VCC = Pin 14
GND = Pin 7
SC00007
LOGIC DIAGRAM
VCC = Pin 14
GND = Pin 7
2
1A 3
1B
2A 5
6
2B
8
3A
3B
9
4A 11
12
4B
1
1Y
4
2Y
10
3Y
13
4Y
SC00008
FUNCTION TABLE
INPUTS
nA
nB
H
H
L
X
X
L
H = High voltage level
L = Low voltage level
X = Don’t care
LOAD VALUE
HIGH/LOW
20µA/0.1mA
0.4mA/8mA
1
4
10
13
SF00010
OUTPUT
nY
L
H
H
1991 Feb 08
2
853–0855 01670
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