74LV251DB 데이터 시트보기 (PDF) - NXP Semiconductors.
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74LV251DB Datasheet PDF : 12 Pages
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Philips Semiconductors
8-input multiplexer (3-State)
Product specification
74LV251
PIN CONFIGURATION
I3 1
I2 2
I1 3
I0 4
Y5
Y6
QE 7
GND 8
16 VCC
15 I4
14 I5
13 I6
12 I7
11 S0
10 S1
9 S2
SV00629
LOGIC SYMBOL
11 10 9
S0 S1 S2
4
I0
3
I1
2
I2
1
I3
Y
5
15
I4
Y
6
14
I5
13
I6
12
I7
OE
7
SV00630
FUNCTIONAL DIAGRAM
4
3
2
1
15 14 13 12
11 S 0
10 S 1
9
S2
I0 I1
I2
I3
I4 I5
I6
I7
MULTIPLEXER
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
4, 3, 2, 1, 15,
14, 13, 12
I0 to I7
Multiplexer inputs
5
Y
Multiplexer output
6
Y
Complementary multiplexer output
7
OE
3-State output enable input (active
LOW)
8
GND
Ground (0 V)
11, 10, 9
16
S0 to S2
VCC
Select inputs
Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
MUX
7
EN
11
0
10
G0
7
9
2
4
0
3
1
2
2
5
1
3
15
4
6
14
5
13
6
12
7
SV00631
7 OE
1998 May 20
Y
Y
6
5
SV00632
3
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