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Datasheet Quick-Ref
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74HC256
Dual 4-Bit Addressable Latch
Datasheet (PDF)
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74HC256
DIP-16
1
1D
2
A0
3
A1
4
1Q0
5
1Q1
6
1Q2
7
1Q3
8
GND
16
VCC
15
2D
14
~E
13
~MR
12
2Q0
11
2Q1
10
2Q2
9
2Q3
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
1D
in
2
A0
in
3
A1
in
4
1Q0
out
5
1Q1
out
6
1Q2
out
7
1Q3
out
8
GND
gnd
9
2Q3
out
10
2Q2
out
11
2Q1
out
12
2Q0
out
13
~MR
in
14
~E
in
15
2D
in
16
VCC
vcc