IC3 TC74VHC157F IC4 TC74VHC157F

+3.3V
C53
2
B2B-PH-K-S
C54
3
+1
O
2
C52
I
2
C51
+1
1
1
2
IC5
3.3V
G
+5.0V
CN5
GND
IC4
TC74VHC157F
12 R25
22
+3.3V
DSD1794A
GND
1
22
+
2
+3.3V
GND
+5.0V
+1
CN101
1
2
3
C8
C7
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C6
VCC2L
AGND3L
IOUTLIOUTL+
AGND2
VCC1
VCOML
VCOMR
IREF
AGND1
IOUTRIOUTR+
AGND3R
VCC2R
2
2
+
1
1
GND
B3B-XH-A
C9+
R3
C10
+
B6B-PH-K-S
GND
C1
1
2
3
4 R24
5
6
DSDL
DSDR
DBCK
PLRCK
PDATA
PBCK
SCK
DGND
VDD
ADD0
ADD1
SCL
SDA
RST
C12
CN1
BCLK/DSDBCLK
LRCK/DSDL
SDATA/DSDR
SCLK
DSD_H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
+
8
2
16
1
GND
22
C5
VCC
22
R27
2
4Y
R26
9
2
3Y
7
1
2Y
4
C11
1Y
C2
1A
1B
2A
2B
3A
3B
4A
4B
S
G
C22
nA/B
2
3
5
6
11
10
14
13
1
15
IC1
GND
IC3
TC74VHC157F
R23
22
12
+3.3V
16
DSD1794A
B3B-PH-K-S
GND
GND
0.1u C14
C15
+
0.1u C16
CN201
C17
2 C18
+1
2 +1
1
2
3
GND
B3B-XH-A
R4
+
2
+
1
C3 0.1u
GND
VCC2L
AGND3L
IOUTLIOUTL+
AGND2
VCC1
VCOML
VCOMR
IREF
AGND1
IOUTRIOUTR+
AGND3R
VCC2R
C20
1
2
3
+3.3V
DSDL
DSDR
DBCK
PLRCK
PDATA
PBCK
SCK
DGND
VDD
ADD0
ADD1
SCL
SDA
RST
+5.0V
28
27
26
25
24
23
22
21
20
19
18
17
16
15
2
CN8
R51 No mount
R50 No mount
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
8
+1
GND
9
C13
VCC
22
2
4Y
22
R22
2
3Y
R21
7
1
2Y
4
C19 0.1u
1Y
C4
1A
1B
2A
2B
3A
3B
4A
4B
S
G
C21
nA/B
2
3
5
6
11
10
14
13
1
15
IC2
GND
TITLE
SHEET
DRAWING_No.
DATE
DESIGN