5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
XOUT
XOUT32
XIN32
DFSDM
DFSDP
XIN
XIN32
XOUT32
VBG
VREF
+3V3
+3V3
VOUT
VOUT
VOUT
VUTMI
VANA
+3V3
+3V3
+3V3
+3V3
VUTMI
VANA
+3V3
+3V3
nRST
NRSTB
TDI
TDO
TMS
TCK
DHSDM
DHSDP
Title
Size
Document Number
Rev
Date:
Sheet
of
CM3 BOARD REV C.DSN
C
ARM CORTEX M3 MICROCONTROLLER BOARD
A
3
7
Thursday, October 06, 2011
Title
Size
Document Number
Rev
Date:
Sheet
of
CM3 BOARD REV C.DSN
C
ARM CORTEX M3 MICROCONTROLLER BOARD
A
3
7
Thursday, October 06, 2011
Title
Size
Document Number
Rev
Date:
Sheet
of
CM3 BOARD REV C.DSN
C
ARM CORTEX M3 MICROCONTROLLER BOARD
A
3
7
Thursday, October 06, 2011
PROVISIONAL
ARM CORTEX M3 MCU
NEXT BOARD REVISION:
CONNECT R1 TO GND, NOT VCC.
MAKE R1 1K, NOT PROVISIONAL.
CONNECT U1 PIN 138 (TEST) TO
NEW 1K PULL-DOWN RESISTOR.
SOT-23
0805 MURATA LQM21FN100M70
HOLT INTEGRATED CIRCUITS, Mission Viejo, CA, USA
C29
100nF
C29
100nF
+
C12
10uF
+
C12
10uF
C5
4.7uF
C5
4.7uF
C17
100nF
C17
100nF
C20
4.7uF
C20
4.7uF
JP1
JP1
R6
6.8K 1%
R6
6.8K 1%
L2
10uH/100mA
L2
10uH/100mA
C28
100nF
C28
100nF
C11
100nF
C11
100nF
R7
1R
R7
1R
+
C3
10uF
+
C3
10uF
C14
20pF
C14
20pF
VR1
LM4040-2.5
VR1
LM4040-2.5
2
1
3
R3 4.7K
R3 4.7K
C26
100nF
C26
100nF
+
C30
10uF
+
C30
10uF
R4
39R
R4
39R
C19
100nF
C19
100nF
R2
100K
R2
100K
R5
39R
R5
39R
C6
100nF
C6
100nF
C16
100nF
C16
100nF
C23
10pF
C23
10pF
C2
100nF
C2
100nF
C25
20pF
C25
20pF
C24
100nF
C24
100nF
C13
100nF
C13
100nF
C27
20pF
C27
20pF
R8
1R
R8
1R
C22
100nF
C22
100nF
C10
100nF
C10
100nF
C31
4.7uF
C31
4.7uF
C8
100nF
C8
100nF
C32
4.7uF
C32
4.7uF
C21
20pF
C21
20pF
U1B
SAM3U
U1B
SAM3U
NRST
11
TDI
1
TDO/TRACESWO
4
TMS/SWDIO
7
TCK/SWCLK
9
VBG
39
DHSDP
37
DHSDM
38
DFSDM
41
DFSDP
42
FWUP
135
SHDN
136
ERASE
137
TEST
138
NRSTB
141
XIN32
144
XOUT32
143
XIN
36
XOUT
35
ADVREF
74
AD12BVREF
76
VDDCORE1
16
VDDCORE2
27
VDDCORE3
44
VDDCORE4
50
VDDCORE5
86
VDDCORE6
125
VDDOUT
2
VDDIN
3
VDDIO1
17
GND1
18
GNDPLL
33
VDDUTMI
40
GNDUT
MI
43
VDDIO2
51
GND2
52
GND3
60
VDDANA
73
GNDANA
75
VDDIO3
85
GND4
90
VDDIO4
104
GND5
126
VDDIO5
127
VDDBU
139
GNDBU
140
VDDPLL
34
JTAGSEL
142
C18
100nF
C18
100nF
R1
PROV
R1
PROV
Y1
12.000MHz
Y1
12.000MHz
C15
100nF
C15
100nF
Y2
32.768KHz
Y2
32.768KHz
1
2
3
C7
100nF
C7
100nF
C4
100nF
C4
100nF
L1
10uH/100mA
L1
10uH/100mA
C9
100nF
C9
100nF
C1
10nF
C1
10nF