Schematic
12/01/2015 09:59:49 D:\Downloads\arduino-wifi-shield-reference-design\Arduino Wifi shield v022-REV3.1.sch (Sheet: 1/1)
1uF
1uF
1uF
0.1uF
1uF
0.1uF
22pF
22pF
GND
+3V3
0.1uF
1uF
0.33uF
GND
GND
100K
2.2uF(4.7uF)
2.2nF (1nF)
2.2uF
2.2nF (470pF)
100K
Green
Red
Blue
+5V
16.5K
GND
1pF
BAT54A
10K
10K
10uF10uF
10uF
10uF
GND
GND
10nF
22pF
22pF
0.5pF_NM
N.M.
N.M.
GNDGND
CD1206-S01575
+1V2
+1V2
1K
GND
Yellow
LDA312G7313F-237
GND
N.M.
12MHz
3.9nH
10K
TS42
10uF
10K/100K
10K/100K
10K/100K
10K/100K
GND
+5V
5075BMR-05-SM
40MHz 8pF
GND
GND GND
HDG104/HDG204
AT32UC3A1256(512)
GND
GND
+3V3
0.1uF
10K
0.1uF
+3V3
GND
0.1uF
+3V3
GND
GND
GNDGND
GNDGND
+3V3
0R
10K/100K
10K/100K
10K/100K
10K/100K
+3V3
GND
N.M.
GND
+3V3
+1V8
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
GND GND
10uF
GND
+3V3
GND
0.1uF
+3V3
GND
100K
+3V3
ADM811
100K
GND
+3V3
GND
MBR0520
VCC
GND
GND
+5V
N.M.
74LVC1G125
GND
10K
10K
10K
10K
GND
MBR0520
+5V
GND
GND
1K
1K
1K
1K
+3V3
10K
+3V3
GND
+3V3
+5V
+5V
GND GNDGND
VCC
LM2736 LM1117-ADJ
GND GND
10K
+3V3 +3V3
GND
1K
0R
GND
10uF
GND
0.1uF0.1uF 0.1uF
32.768Khz
10u SRR0604-100ML
22R
22R
22R
22R
CG0603MLC-05E
CG0603MLC-05E
AT45DB021D-SH-B
GND
MC-921_NM
NM
GND
0.5pF
DIGITAL_1
1
2
3
4
5
6
7
8
DIGITAL_2
1
2
3
4
5
6
7
8
9
10
ANALOG_IN
1
2
3
4
5
6
C12
C14
C16
C18
C23
C20
C24
C26
C28
C30
C32
R13
C27
C25
C29
C31
R11
LINK
ERROR
DATA
RA
C7
D1
R3
R1
C46C45
C43
C44
C39
C4
C5
C9
C8
C10
D4
R12
L9
X1
ICSP
1 2
3 4
5 6
Q2
Q1
L2
R2
1
2
3
4
5
RESET
C38
RR1A
1 8
RR1B
2 7
RR1C
3 6
RR1D
4 5
FTDI
1
2
3
4
5
6
J2
VBUS
5
D-
4
D+
3
ID
2
GND
1
SH4
9
SH3
8
SH2
7
SH1
6
1
2
3
4
Y1
IC5
40MHZ_IN
24
40MHZ_OUT
25
ANT_WLAN
4
COEX0
21
COEX1
32
COEX2
14
COEX3
13
COEX4
5
DCO
31
DCDC_ENABLE
26
DVDD
17
EXT_PW R_EN
35
GND
3
GND
45
GND
46
GND
47
GND
48
NC
18
NC
38
ICE_TCK
8
ICE_TDI
6
ICE_TDO
12
ICE_TMS
10
ICE_TRST
7
LFC_IN
36
NC
15
NC
16
SD_D2
43
SPI_CLK
44
SPI_CS
39
NC
9
SPI_IRQ
2
SPI_MISO
1
SPI_MOSI
40
TEST_EN
30
VBAT_32K
29
VBAT_P
33
VCC
20
VCC_REG_PLL
22
VDD_CKL_12
27
VDD_CKL_26
28
VDD_IO
37
VDD_MAC_BB
41
VCC_REG_VCO
19
VDD_SDIO
42
VPA
11
RESET
34
SHUTDOWN
23
TXB0108
IC4/1
A1
1
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
B1
20
B2
18
B3
17
B4
16
B5
15
B6
14
B7
13
B8
12
OE
10
IC4/2
TXB0108
GND
11
VCC
19
VL
2
RESET
18
ADVREF
60
DM
48
DP
49
GND
5
GND
13
GND
21
GND
35
GND
50
GND
69
GND
80
GNDANA
61
MACB-MDC/PB08
76
MACB-MDIO/PB09
77
MACB-RX_DV/PB15
95
MACB-RX_ER/PB07
75
NC
32
PA00
19
PA01
20
PA02
23
PA03/EIM-EXTINT[4]
24
PA04/EIM-EXTINT[5]
25
PA05/USART1-RXD
26
PA06/USART1-TXD
27
PA07
28
PA08
29
PA09
30
PA10/SPI0-NPCS[0]
31
PA11/SPI0-MISO
33
PA12/SPI0-MOSI
36
PA13/SPI0-SCK
37
PA14/SPI1-NPCS[0]
39
PA15/SPI1-SCK
40
PA16/SPI1-MOSI
41
PA17/SPI1-MISO
42
PA18/SPI1-NPCS[1]
43
PA19/SPI1-NPCS[2]
44
PA20
45
PA21/USB-USB_ID
51
PA22
52
PA23
53
PA24/EIM-EXTINT[3]
54
PA25
55
PA26
56
PA27
57
PA28
58
PA29/TWI-SDA
83
PA30/TWI-SCL
84
PB00/MACB-TX_CLK
65
PB01/MACB-TX_EN
66
PB02/MACB-TXD[0]
70
PB03/MACB-TXD[1]
71
PB04
72
PB05/MACB-RXD[0]
73
PB06/MACB-RXD[1]
74
PB10
78
PB11
81
PB12
82
PB13
87
PB14
88
PB16
96
PB17
98
PB18
99
PB19
100
PB20
1
PB21
2
PB22
3
PB23/TC-A0
6
PB24
7
PB25
8
PB26
9
PB27
10
PB28
14
PB29
15
PB30
16
PB31
17
PC00/XIN32
63
PC01/XOUT32
64
PC02/XIN0
85
PC03/XOUT0
86
PC04/XIN1
93
PC05/XOUT1
94
TCK
90
TDI
92
TDO
91
TMS
89
VBUS
46
VDDANA
59
VDDCORE
22
VDDCORE
34
VDDCORE
38
VDDCORE
97
VDDIN
12
VDDIO
4
VDDIO
47
VDDIO
67
VDDIO
68
VDDIO
79
VDDOUT
11
VDDPLL
62
U1
C1
R6
C3
C6
R9
A0
1
A1
2
A2
3
GND
4
SCL
6
SDA
5
VCC
8
WP
7
IC1
AT24C128BN-SH-B
NC
1
CS
2
DI
3
VCC
4
SCK
5
GND
6
DO
7
NC
8
SHIELD
SH1
SHIELD
SH2
SHIELD
SH3
SHIELD
SH4
J1
15TW-8821
RR2A
1 8
RR2B
2 7
RR2C
3 6
RR2D
4 5
R8
C15
C17
C19
C21
C22
C33
C34
C35
C36
C37
C13
C11
JTAG
1 2
3 4
5 6
7 8
9 10
C2
MACB
1 2
3 4
5 6
7 8
9 10
11 12
13 14
R4
IC2
GND
1
VCC
4
MR
3
RST
2
R5
D2
R7
2 4
1
IC6/1
IC6/2
74LVC1G125
VCC
5
GND
3
RR3A
1 8
RR3B
2 7
RR3C
3 6
RR3D
4 5
D3
RR5A
1 8
RR5B
2 7
RR5C
3 6
RR5D
4 5
R15
J3
1 2
IC8
BOOST
1
EN
4
FB
3
GND
2
SW
6
VIN
5
IC7
ADJ
1
VI
3
VO
2
TAB
4
RB
R14
R16
C47
C41C40 C42
Q3
A
K
L3
RR4A
1 8
RR4B
2 7
RR4C
3 6
RR4D
4 5
Z2
Z1
1
2
3
4
5
6
7
8
POWER
1
2
3
4
5 8
7
6
SI
SCK
RESET
CS
WP
VCC
GND
SO
IC3
X4
SEL
21
C48(EXL1)
VCC
RXD
TXD
X1-40
X2-40
EE_SDAEE_SDA
EE_SCLEE_SCL
XIN0
XOUT0
XIN1
XOUT1
XIN32
XOUT32
SPI1_MISO
SPI1_MISO
SPI1_MISO
SPI1_MOSI
SPI1_MOSI
SPI1_MOSI
SPI1_SCK
SPI1_SCK
SPI1_SCK
HD_CSHD_CS
HD_LFC
HD_IRQHD_IRQ
HD_SHDNHD_SHDN
HD_RESETHD_RESET
DF_RESET
DF_RESET
DF_CS
DF_CS
HD_D2
TCK
TDO
TMS
TDI
RESET_3V3
MTX_CLK
MTX_EN
MTXD0
MTXD1
MRXD0
MRXD1
MMDIO
MRX_DV
MEXTINT
RESET
RESET
RXD3
TXD3
INT13
MISO3
MISO3
SCK3
SCK3
MOSI3
MOSI3
SS3
SD_CS3
SD_CS3
MISO
SCK
MOSI
SS
INT1
VBUS
D-RD-
RD+ D+
MRX_ER
MMDC
IDRID
SD_CS
SD_CS
IOREF
IOREF
+
+
+
+
+
+
+
D6
SS1P3L
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Arduino Wifi Shield
Vin
GND
GND
+5V
+3.3V
RESET
0
1
2
3
4
5
Rx
Tx
PWM
PWM
PWM
PWM
PWM
PWM
GND
AREF
LED
CONSOLE
IF LM2734Y
RA=30K9
RB=10K
miso
mosi
sck
cs
New WiFi shield: HDG204
Prev. : HDG104
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