Datasheet

Page 23
75
74
73
72
71
70
69
68
67
66
64
65
63
62
61
60
59
58
57
56
55
54
53
52
51
50 49 48 47 46 45 44 43 42
41
4
0
39
38 37 36 35
34
33 32 31 30
29
28 27 26
9
11
12
4
3
78
77
24
23
18
17
16
15
14
13
5
6
7
8
10
79 80
1
2
22
21
20
19
25
76
PIC32MX795F512L
81
82
83 84 85
86 87 88
89
90 91 92 93
94
95
96
97
98 99
100
RB11
RB10 RB9
RB8
RB13
RB12
RE7
RC1
RC2
RC3
RD9
RD8
RA15
D+/RG2
RB15
RB14
RF8
VBUS
VUSB
D-/RG3
VSS VDD
RA6
RG0 RG1
RE0
RF1
RF0
RD7 RD6
RE6
RE5
RE2
RG13 RG12
RG14
RE1
RA7
RG8
RA9
RB2
RB3
RB4
RB5
RE9
RE8
RD11
RD10
RF2
RF3
RG9
RG7
RG6
RA1
RE3 RE4
RG15
VDD
RB7 RB6
RB0
RB1
RF4
R
F5
RA14
RA5
RD14 RD15
RA2
RF13
VDD
RA3
VDD
VDD
RA0
VDD
VSS
VSS RF12
RA4
VSS
VCAP/VD
D
CO
RE
AVSS AVDD
RA10
MCLR
RC4
OSC1/RC12
OSC2/RC15
RD0
RD3
R
D1
SOSCI/RC13
SOSCO/RC14
VSS
RD2
RD12
RD13
R
D4
RD5
U18
VCC-3.3V
SPI_MOSI
SPI_MISO
SPI_SCK
EXP-CS#
EXP-INT
EXP-RST#
VCC-ADC
OSC1
OSC2
SOSCI
SOSCO
E10
10uF
R100 27
R101 27
C133
1uF
C135
10nF
FP4
VCC-ADC VCC-3.3V
C134
100nF
VCC-3.3V
C114
100nF
C115
100nF
C116
100nF
VCC-3.3V
C111
100nF
C112
100nF
C113
100nF
VCC-3.3V
C117
100nF
C124
1uF
C125
1uF
VCC-3.3V
C126
1uF
C127
10nF
C128
10nF
C129
10nF
C130
100nF
VCC-3.3V
VCC-3.3V
EXP-INT
SPI_MOSI
SPI_MISO
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
16
17
18
19
20
21
22
23
24
25
26
27
28
GPB0
GPB1
GPB2
GPB3
GPB4
GPB5
GPB6
GPB7
VDD
VSS
CS
SCK
SI
SO
GPA2
GPA1
GPA7
GPA6
GPA5
GPA4
GPA3
GPA0
RESET
INTA
INTB
A2
A1
A0
MCP23S17
U11
MCP23S17
VCC-3.3V
SPI_SCK
EXP-CS#
R98
100K
EXP-PWM0
EXP-PWM1
EXP-PWM2
EXP-PWM3
EXP-INT0
EXP-INT1
EXP-INT2
EXP-INT3 EXP-GPIO0
EXP-GPIO1
EXP-GPIO2
EXP-GPIO3
EXP-GPIO4
EXP-GPIO5
EXP-GPIO6
EXP-GPIO7
R99
100K
EXP-RST#
R102 27
VCC-3.3V
Vdc
VCC-5V
HDR1
M1X26
HDR2
M1X26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
VCC-3.3V
EXP-PWM0
EXP-PWM1
EXP-PWM2
EXP-PWM3
EXP-INT0
EXP-INT1
EXP-INT2
EXP-INT3
EXP-GPIO0
EXP-GPIO1
EXP-GPIO2
EXP-GPIO3
EXP-GPIO4
EXP-GPIO5
EXP-GPIO6
EXP-GPIO7
OSC1
OSC2
SOSCI
SOSCO
X5
32.768KHz
C109
22pF
C110
22pF
X4
16MHz
C107
22pF
C108
22pF
Figure 6-2: Port Expander connection schematic
Page 22