5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
USB_DP
SSO_SDA
SSCK_SCL
SCS
SSI
R
ESET
MO
D
E
RX
D
TX
D
USB_VBUS
TX
D
RX
D
m ode_s el
USB_DM
RXD
TXD
TXD
RXD
SCS
SSI
SSCK
SSO
TXD
RXD
SSO
SSCK
SSI
SCS
VCC
VCC
VCC
VCC
VCC
VCC
VBUS
VBUS
VCC
VCC
Title
Size
Docum ent Num ber
Rev
Date:
Sheet
of
R0K5R8C3MDU30BR
1
1
D-R0K5R8C3MDK3UBR_C
Title
Size
Docum ent Num ber
Rev
Date:
Sheet
of
R0K5R8C3MDU30BR
1
1
D-R0K5R8C3MDK3UBR_C
Title
Size
Docum ent Num ber
Rev
Date:
Sheet
of
R0K5R8C3MDU30BR
1
1
D-R0K5R8C3MDK3UBR_C
SS
O
/S
D
A
SC
S
SS
C
K/
SC
L SS
I
RE
SE
T
M
O
D
E
VC
C
G
ND TX
D
RX
D
Appendix 1 Circuit Diagram
CN1
Mini-B
CN1
Mini-B
Vbus
1
D-
2
D+
3
GND
5
FRAME1
6
ID
4
FRAME2
7
FRAME3
8
FRAME4
9
R3
330
R3
330
1
2
J2
CON5
J2
CON5
1
2
3
4
5
R6
27
R6
27
R14
4.7k
R14
4.7k
C3
1.0u
C3
1.0u
1
2
R5
27
R5
27
J3
2.54m m 2x4Header
J3
2.54m m 2x4Header
1
5
2
6
3
7
4
8
R8
100k
R8
100k
C4
1.0u
C4
1.0u
1
2
LED1
SML-310MT(GREEN)
LED1
SML-310MT(GREEN)
R12
4.7k
R12
4.7k
J1
CON5
J1
CON5
1
2
3
4
5
C6
0.1u
C6
0.1u
1
2
R4
1.5K
R4
1.5K
R9
0
R9
0
C7
0.1u
C7
0.1u
1
2
X1
CERAMIC
X1
CERAMIC
1
3
2
R13
4.7k
R13
4.7k
R10
100k
R10
100k
C2
0.1u
C2
0.1u
1
2
U2
MIC5353-3.3YMT
U2
MIC5353-3.3YMT
VOUT
4
NC
5
BYP
6
EN
1
GND
2
VIN
3
PAD
7
TP1
TP1
1
C1
1.0u
C1
1.0u
1
2
C5
0.1u
C5
0.1u
1
2
R7
100
R7
100
R11
4.7k
R11
4.7k
U1
R8C/3MK Group MCU
U1
R8C/3MK Group MCU
P07/AN0/TRCIOC
33
P04/AN3/TRCIOB
34
P03/AN4/CLK1/TRCIOB
35
P02/AN5/RXD1/TRCIOA/TRCTRG
36
P01/AN6/TXD1/TRCIOA/TRCTRG
37
P00/AN7/TRCIOA/TRCTRG
38
P
30/
T
R
A
O
2
VR
EF
3
MO
D
E
4
R
ESET
5
P
47/
X
O
U
T
6
VSS
7
P35/SCL/SSCK/TRCIOD
11
P34/TRCIOC/SSI/IVREF3
12
P33/TRCCLK/SCS/CTS2/RTS2/IVCMP3
13
P77/USB_VBUSEN
14
P76/USB_OVRCURA
15
USB_VBUS
16
USB_DM
17
USB_DP
18
USB_VCC
19
USB_DPUPE
20
P
6
7
/INT
3
/T
RCIO
D
21
P6
6
/I
N
T
2
/T
XD
2
/SD
A2
22
P
65/
IN
T
4
/C
LK
2/
C
L
K
1
23
P
45/
IN
T
0
/R
X
D
2/
S
C
L2/
A
D
T
R
G
24
P
1
7
/INT
1
/T
RA
IO
/IV
CM
P
1
25
P
1
6
/CL
K
0
/IV
RE
F
1
26
P
1
5
/RX
D0
/T
RA
IO
/INT
1
27
P
1
4
/T
X
D0
/T
RCCL
K
28
P
13/
K
I3/
A
N
11/
T
R
B
O
/T
R
C
IOC
29
P
12/
K
I2/
A
N
10/
T
R
C
IOB
30
P11/KI1/AN9/TRCIOA/TRCTRG
31
P83/RXD3
39
P82/TXD3
40
P
81/
C
L
K
3
1
VC
C
9
P
46/
X
IN
8
P3
7
/SSO
/T
R
A
O
/SD
A
10
P10/KI0/AN8/TRCIOD
32
PAD
41