VCC_T
BENCH POWER
5-12 VDC
GND
POWER
2V - 3.3V
DBG
VCC_USB
VCC
VCC_T
VCC_USB
VCC_USB
VCC_USB
VCC_USB
VCC_USB
VCC_USB
NP_TXDU
LP_TXDU
LP_RXDU
NP_RXDU
LP_NP
LP_VDD_IN
NP_VDD_IN
-LP_ON
-NP_ON
R29
10K
L1
FERRITE BEAD
R25
330 ohm
J12
1
2
3
U10
FPF2302MX
ONA
3
ONB
4
FLTA
8
FLTB
5
OUTA
7
OUTB
6
IN
2
GND
1
R30
10K
R36
10K
C37
1uF
D5
PMEG3020
3
2
1
D4
GREEN
2
1
C23
0.01uF
R41
10K
C35
18pF
C39
4.7uF
C38
0.1uF
R34
1K
Y1
16MHZ
U9
IXD1216C
GND
2
VOUT
1
CE
3
VOFB
4
VIN
5
J14
1
2
3
4
5
6
R24 27
R23
27
P1
USB, mini B
VBUS
1
DM
2
DP
3
ID
4
GND
5
SH1
6
SH2
7
SH3
8
SH4
9
R37
10K
C32
1uF
C25
0.1uF
R40
6.49K
Y2
32.768KHZ
R33
25K
1
3
2
C31
0.015uF
C28
4.7uF
C30
1uF
J11
1
2
3
U11
IXD1216C
GND
2
VOUT
1
CE
3
VOFB
4
VIN
5
C29
0.015uF
J15
1
R39
10K
GND
Z8F6481QN
U8
P
A
2/D
E
0/C
LK
2IN
/X
2IN
1
P
A
3/C
T
S
0-
/X
2O
U
T
2
P
E
3/T
4C
H
A
/E
S
O
U
T
0
3
P
D
6/D
E
1
4
P
A
4/R
X
D
0/M
O
S
I0
5
P
A
5/T
X
D
0/S
C
K
0
6
P
D
5/T
X
D
1
7
P
A
6/T
1IN
/T
1O
U
T
-/S
C
L
8
P
C
4/M
O
S
I0/T
0IN
/T
0O
U
T
-/S
C
L/D
E
0
9
P
C
5/S
C
K
0/T
0O
U
T
/S
D
A
/C
T
S
0-
10
P
A
7/T
1O
U
T
/S
D
A
11
PD4/RXD1
12
PC6/T2IN/T2OUT-/SCKOUT/ESOUT0
13
PC7/T2OUT/CTS1-/ESOUT1
14
VDD
15
PD0/RESET
16
DBG
17
PD3/C1OUT/AMPBOUT/ANA8
18
VSS
19
PC0/ANA4/VBIAS/C0INP
21
PC1/ANA5/C0INN/MISO0
22
P
C
2/A
N
A
3/S
S
0-
23
P
C
3/M
IS
O
0/A
N
A
11/D
A
C
24
P
D
2/C
1IN
P
/A
M
P
B
IN
P
/A
N
A
6
25
P
D
1/C
1IN
N
/A
M
P
B
IN
N
/A
N
A
7
26
P
B
0/A
N
A
0/A
M
P
A
O
U
T
27
P
B
1/A
N
A
1/A
M
P
A
IN
N
28
P
B
2/A
N
A
2/A
M
P
A
IN
P
29
P
B
4/V
R
E
F
+
30
P
B
3/V
R
E
F
-
31
P
E
5/T
4C
H
C
/E
S
O
U
T
2
32
P
E
6/T
4C
H
D
/E
S
O
U
T
3
33
PE2/T4IN
34
VCORE
35
AVDD
36
VDD
37
PA0/T0IN/T0OUT-/CLKIN/XIN
38
PA1/T0OUT/XOUT
39
VSS
40
AVSS
41
PD7/C0OUT
42
PE1/DM/T0OUT
43
PE0/DP/T0IN/T0OUT-
44
PE4/T4CHB/ESOUT1
20
EP
45
C24
4.7uF
C36
18pF
R38
10K
J13
1
2
3
R35
40.2K
USB_DM
USB_DP
U_-RST
U_DBG
GND
U_DBG
U_-RST
USB_DM
USB_DP
GND