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74HC646
Octal Bus Transceiver/Register (3-State)
Datasheet (PDF)
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74HC646
DIP-24
1
CAB
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
SAB
11
CLKAB
12
GND
24
VCC
23
CBA
22
B1
21
B2
20
B3
19
B4
18
B5
17
B6
16
B7
15
B8
14
SBA
13
CLKBA
vcc
gnd
in
out
io
Pin Reference
⌄
#
Label
Type
1
CAB
in
2
A1
io
3
A2
io
4
A3
io
5
A4
io
6
A5
io
7
A6
io
8
A7
io
9
A8
io
10
SAB
in
11
CLKAB
in
12
GND
gnd
13
CLKBA
in
14
SBA
in
15
B8
io
16
B7
io
17
B6
io
18
B5
io
19
B4
io
20
B3
io
21
B2
io
22
B1
io
23
CBA
in
24
VCC
vcc