IC Pinouts
Projects
About
Contact
☀️
☰
IC Reference · Pinout Viewer
Datasheet Quick-Ref
←
74HC251
8-Input Multiplexer 3-State
Datasheet (PDF)
→
📁
ROTATE
↺
↻
74HC251
DIP-16
1
D3
2
D2
3
D1
4
D0
5
Y
6
~Y
7
~OE
8
GND
16
VCC
15
D4
14
D5
13
D6
12
D7
11
S0
10
S1
9
S2
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
D3
in
2
D2
in
3
D1
in
4
D0
in
5
Y
out
6
~Y
out
7
~OE
in
8
GND
gnd
9
S2
in
10
S1
in
11
S0
in
12
D7
in
13
D6
in
14
D5
in
15
D4
in
16
VCC
vcc