User manual

PICDEM™ LAB II DEVELOPMENT
BOARD USER’S GUIDE
 2015 Microchip Technology Inc. DS40001814A-page 27
Appendix A. Schematics
FIGURE A-1: PICDEM™ LAB II DEVELOPMENT BOARD SCHEMATIC 1
1 1
2 2
3 3
4 4
5 5
6 6
D D
C C B B
A A
* of *
PICdem Lab 2
11/25/2014 9:48:30 AM
219-0544.SchDoc
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REV ECO# DESCRIPTION DATE
2 3 1
POWER 2.5mm J1
MCP16311T-E/MS
FB
1
VCC
2
EN
3
VIN
4
PGND
5
BOOST
7
SW
6
AGND
8
U6
MCP16311T-E/MS
FB
1
VCC
2
EN
3
VIN
4
PGND
5
BOOST
7
SW
6
AGND
8
U7
ADJ
4
VOUT
5
SHDN
3
Vin
1
GND
2
U9
TC1187
22µH L1
15µH L2
10k 1% R4
10k 1% R6
52.3k 1% R3
10uF
C2
10uF
C3
10uF
25V
0805
C4
10uF 25V C6
10uF 25V C7
10uF 25V C10
10uF 25V C11
±0.1%31.2k
R5
1uF 16V C8
1uF 16V C12
0.1uF C5
0.1uF C9
0.1uF 16V C13
0.1uF 16V C14
1uF 16V C15
SGND
SGND
SGND
SGND
SGND
SGND
SGND SGND
SGNDSGND
SGND
SGNDSGND
SGND
SGND SGND SGND
SGND
SGND
SGND
2.7k 1% R8
2
1 3
10k 3386F 10%
R7
+5V
Vusb5 Vusb3
+Vvar
1
HDR-2.54 Male 1x1
J3
Vusb5
1 2 3
HDR-2.54 Male 1x3
J2
+5V
1
HDR-2.54 Male 1x1
J7
1 2 3
HDR-2.54 Male 1x3
J6
+3.3VVusb3
+5Vext
+3.3Vext
TP LOOP Red TP1 TP LOOP Red TP3
TP LOOP Black TH TP2 TP LOOP Black TH TP4
SGND SGND
1 2 3 4 5 6 7
J5
+5V
+3.3V
+Vvar
SGND
1 2 3 4 5 6 7
J8
+5V
+3.3V
+Vvar
SGND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
J9
mikroBUS
7 4 1 8 6 3 5 2
10 13 16
9
11 14 12 15
GNDGND
+5V+3.3V SDA SCL
TX RX
INT
PWMAN
RST CS SCK MISO MOSI
J35
mikroBUS
7 4 1 8 6 3 5 2
10 13 16
9
11 14 12 15
GNDGND
+5V+3.3V SDA SCL
TX RX
INT
PWMAN
RST CS SCK MISO MOSI
No Load
J32
DNP
SGND SGND
VDD
1
GP0
2
GP1
3
RST
4
UART RX
5
UART TX
6
GP2
7
GP3
8
SDA
9
SCL
10
VUSB
11
D-
12
D+
13
VSS
14
MCP2221
U12
USB_P USB_N
2.2k R2
2.2k R16
10k R1
UART_TX
UART_RX
0.47uF 6.3V 0603 C1
U12_SDA
U12_SCL
U12_SDA
U12_SCL
GP0 GP1 GP2 GP3
1 2 3 4 5 6
J4
UART_RX
UART_TX
SDA
SCL
USB MINI-B Female
ID
4
VBUS
1
GND
5
D-
2
D+
3
0
J18
USB_P USB_N
SGND
SGND
SGND
SGND
RESET
Vusb5
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
J10
Vusb5
1 2 3 4 5 6 7 8
J27
1 2 3 4 5 6 7 8
J26
1 2 3 4 5 6 7 8
J25
1 2 3 4 5 6 7 8
J24
GND
1
VIN
3
VOUT
2
MCP1702-3302E/CB
U8
+3.3V +5V +3.3V
+5V
SGNDSGND
+5V
DIR
5
A
3
B
4
GND
2
VCCA
1
VCCB
6
SN74LVC1T45DCKR U10
DIR
5
A
3
B
4
GND
2
VCCA
1
VCCB
6
SN74LVC1T45DCKR U11
0.1uF C17
0.1uF C16
0.1uF C18
0.1uF C19
U12_TX
U12_RX
SGND
SGND
SGND
SGND
Vusb3 VDUT
VDUT
U12_TX
U12_RX
Vusb3 VDUT
PCA9306D,118
Vref1
2
Vref2
7
SCL1
3
SCL2
6
SDA1
4
SDA2
5
EN
8
GND
1
U13
U12_SCL
U12_SDA
0.1uF C27
0.1uF C26
VDUT
SGND
SDA
SCL
SGND
200k R9