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Datasheet Quick-Ref
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74HC670
4x4 Register File 3-State
Datasheet (PDF)
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74HC670
DIP-16
1
D0
2
D1
3
D2
4
D3
5
WA0
6
WA1
7
~WE
8
GND
16
VCC
15
Q0
14
Q1
13
Q2
12
Q3
11
RA0
10
RA1
9
~RE
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
D0
in
2
D1
in
3
D2
in
4
D3
in
5
WA0
in
6
WA1
in
7
~WE
in
8
GND
gnd
9
~RE
in
10
RA1
in
11
RA0
in
12
Q3
out
13
Q2
out
14
Q1
out
15
Q0
out
16
VCC
vcc