MCP3903 ADC Evaluation Board for 16-Bit MCUs User’s Guide
DS51994A-page 18
©
2011 Microchip Technology Inc.
A.4
SCHEMATIC - USB AND MEMORY
C
of
3
4
AB
C
D
E
Filename:
Size
Title
6
A.Hapenciuc
F
4
2
1
Date:
3/18/10
B.Popescu
3
1
AB
C
D
E
REV
F
2
Sheet
dsPIC33.SCHDOC
Eng:
3
Drawn
by:
3
Date
Revision
Notes
M
4
+3.3V
+3.3V
+3.3V
RD13
RD6
RD7
PIC24_MCLR
GNDA
+3.3
V
PIC24_MCLR
RB0/AN0
RB1/AN1
RB2/SS1/AN2
RB4/AN4
RB5/AN5
RE9/INT2
RE8/INT1
RA0/TMS
USB_SS
PIC24_MCLR
USB_SDO
USB_SDI
RC4
RC3
RC2
RE6/PMPD6
RE7/PMPD7
RE5/PMPD5
RG15
+3.3V
+3.3V
RB
6/A
N6/
PG
C
RB
7/A
N7/
PG
D
RE4/PM
PD4
RE3/PM
PD3
RA10
/PM
PA6
+3.3
V
RG13
RB8/AN8
RG14
RE1/PM
PD1
RB10/P
MPA13
RB9/AN9
RA7
RE0/PM
PD0
ENVREG
+3.3
V
RG0
RG1
RA1/TCK
RF1
3/U
2R
TS
RF1
RF0
RB12/P
MPA11
VDDCORE
RB14
/PM
PA1
RB15
/PM
PA0
RD6
RD5/P
MPRD
+3.3
V
RD13
RD4/P
MPWR
VDDCORE
RD15
/U1
RTS
RF4/PM
PA9/U
2RX
RD3/P
MPBE
RD2
RF5/PM
PA8/U
2T
X
RD1
GNDA
+3.3V
+3.3V
RF3/U1TX
RF2/U1RX
RA2/SCL2
RA3/SDA2
RD8
RA15/INT4
RD9
RC13
RC14
+3.3
V
+3.3
V
3903_SDI
3903_SCK
3903_CS
3903_RESET
3903_CLKIN
+3.3
V
+3.3
V
GNDA
+3.3
V
+3.3
V
+3.3
V
+3.3
V
+3.3
V
+3.3
V
+3.3V
RG3/SDA1
RG2/SCL1
+3.3V
OSC1
OSC2
RH6
GNDA
+3.3
V
+3.3
V
+3.3V
GNDA
+3.3V
+3.3V
RB3/AN3
USB_SCK
+3.3V
GNDA
3903_SDO
3903_DR
100
R39
RA9/PM
PA7
GNDA
GNDA
RA
10/PM
PA
6
GNDA
GNDA
GNDA
1K
R14
1K
R24
RA9/PM
PA7
RG12
RE2/PM
PD2
RB11/P
MPA12
RF1
2/U
2C
TS
RA6
ENVREG
GNDA
RB13/P
MPA10
RD14
/U1
CTS
RD7
RD12
GNDA
0.0
R26
GNDA
NONE
R29
GNDA
GNDA
+3.3V
GNDA
RH7
GNDA
RD8
GNDA
SW
4
B3S-
1
0
02P
GNDA
SW
1
B3S-
1
0
02P
GNDA
1K
R20
1K
R31
GNDA
NONE
R25
0.0
R22
GNDA
100NF
C24
100NF
C28
GNDA
100NF
C20
100NF
C27
GNDA
2.2K
R27
18PF
C31
GNDA
GREEN
D6
SML-512MW
100NF
C14
GNDA
18PF
C32
RED
D7
GM1JR35200AE
100
R38
SW
3
B3S-
1
0
02P
SW
2
B3S-
1
0
02P
10K
R21
GNDA
100NF
C26
100NF
C22
100NF
C25
1
100NF
C17
1K
R37
1K
R36
GNDA
GNDA
GNDA
1M
R34
3/31/10
PIC24
ICD
100NF
C11
100NF
C13
GNDA
100NF
C21
GNDA
4.7K
R23
4.7K
R30
GNDA
dsPIC33
100NF
C16
GNDA
2.2K
R28
NONE
R35
7.3728MHZ
X3
+
47UF
C23
100NF
C15
5
6
3
1
2
4
P6
HDR6X1
4.7K
R13
4.7K
R19
100NF
C29
100NF
C19
100NF
C18
M
CP3903
Eval
Board
for
16-bit
MCU
dsPIC33FJ256GP710-I/PF
Initial
Schematic
Design
PGD/
OC
FA/R
B7
27
PMPA7
/RA9
28
PMPD3/
RE3
99
PMPD2/
RE2
98
AVDD
30
RG12
96
C1OUT
/AN8
/RB8
32
PMPD1/
RE1
94
TDO
/A
N11/
RB
11
35
CVREF/AN1
0/R
B10
34
RA6
91
RA7
92
VDD
37
RG1
89
U2RT
S/RF
13
39
U2CT
S/RF
12
40
RF0
87
VREG
86
AN
13/R
B13
42
SC
L2/C
N16/
RD
7
84
PM
PA
0/A
N15/
CN
12/R
B15
44
PMPRD/CN1
4/RD5
82
CN20
/RD1
4
47
VDD
46
IC
5/RD1
2
79
CN19
/RD1
3
80
U2RX/
RF
4
49
RD2
77
INT1/RE8
18
VSS
15
VDD
16
MCLR
13
T4CK/RC3
8
T2CK/RC1
6
RG15
1
U1TX/RF3
51
SDO1/RF8
53
SDI1/RF7
54
SDA1/RG3
56
RA2
58
TDO/RA5
61
TDI/RA4
60
OSC1/CLKI/RC12
63
VSS
65
INT3/RA14
66
IC1/RTCC/RD8
68
IC3/RD10
70
RC13
73
OC1/RD0
72
VSS
75
RA0/TMS
17
INT2/RE9
19
T3CK/RC2
7
T5CK/RC4
9
VDD
2
U1RX/RF2
52
SCL1/RG2
57
RA3
59
VDD
62
SCK1/INT0/RF6
55
INT4/RA15
67
IC2/RD9
69
IC4/RD11
71
OSC2/CLK0/RC15
64
RC14
74
AVSS
31
PGC2
/R
B6
26
PMPA6
/RA10
29
RG14
95
RG13
97
PMPD4/
RE4
100
VSS
36
C2OUT
/AN9
/RB9
33
TCK/
RA
1
38
AN
12/R
B12
41
RF1
88
VCAP/VDDCORE
85
RG0
90
PMPD0/
RE0
93
VSS
45
PMPA1
/AN14
/R
B14
43
CN21
/RD1
5
48
U2
TX/R
F5
50
RD1
76
SS1/RD3
78
PMPWR/
OC5/RD4
81
SDA2/CN1
5/RD6
83
PGD1/AN0/RB0
25
C2IN-/AN2/SS1/RB2
23
C2IN+/AN3/CN5/RB3
22
C1IN+/AN5/CN7/RB5
20
PMPA4/SDI2/CN9/RG7
11
PMPA5/SCK2/CN8/RG6
10
PMPD5/RE5
3
PMPD6/RE6
4
PGC1/AN1/CN3/RB1
24
PMPA2/SS2/CN11/RG9
14
C1IN-/AN4/CN6/RB4
21
PMPD7/RE7
5
PMPA3/SDO2/CN10/RG8
12
U7
