IC Data Sheets
8
.
8
.12 Diagram
, SP3243 (IC U29)
Figure
8
-12 Internal block diagram and pin configuration
Block Dia
g
ram
Pin Confi
g
uration
1
8
4
3
0_
3
11_090205.ep
s
090205
R
4
IN
1
2
3
4
25
26
27
2
8
5
6
7
24
2
3
22
S
HUTDOWN
C2-
V-
R
1
IN
R
2
IN
R
3
IN
ONLINE
C2+
C1-
GND
V
CC
V+
S
TATU
S
T
1
IN
8
9
10
11
1
8
19
20
21
12
1
3
14
17
16
15
R
5
OUT
T
1
OUT
T
2
OUT
T
3
OUT
T
3
IN
T
2
IN
R
4
OUT
R
5
IN
R
3
OUT
R
2
OUT
R
1
OUT
R
2
OUT
S
P
3
24
3
C1+
S
P
3
24
3
2
8
24
2
1
27
3
26
5K
Ω
5K
Ω
5K
Ω
5K
Ω
5K
Ω
GND
C1+
C1-
C2+
C2-
V+
V-
V
CC
14
1
3
12
20
19
1
8
17
16
15
0.1
μ
F
0.1
μ
F
0.1
μ
F
+
C2
C5
C1
+
+
C
3
C4
+
+
0.1
μ
F
0.1
μ
F
9
10
11
4
5
6
7
8
R
S
-2
3
2
OUTPUT
S
R
S
-2
3
2
INPUT
S
TTL/CMO
S
INPUT
S
TTL/CMO
S
OUTPUT
S
To
μ
P
Su
pervi
s
or
Circ
u
it
2
3
22
21
V
CC
V
CC
25
T
1
IN
R
1
OUT
R
1
IN
T
2
OUT
R
2
OUT
T
2
IN
T
3
IN
T
3
OUT
T
1
OUT
R
2
IN
R
3
IN
R
4
IN
R
5
IN
R
2
OUT
R
3
OUT
R
4
OUT
R
5
OUT
ONLINE
S
HUTDOWN
S
TATU
S