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

GN

D

GND

100K

2.2uF(4.7uF)

2.2nF (1nF)

2.2uF

2.2nF (470pF)

100K

Green

Red

Blue

+5V

16.5K

GND

1pF

BAT5

4A

10K

10K

10uF10uF

10uF

10uF

GND

GND

10nF

22pF

22pF

0.5pF_NM

N.M.

N.M.

GN

DG

ND

CD1206-S01575+1V2

+1V2

1K

GND

Yello

w

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

GN

D

GN

DG

ND

HDG104/HDG204

AT32UC3A1256(512)

GN

D

GN

D+3

V3

0.1uF

10K

0.1uF

+3V3

GN

D

0.1uF

+3V3

GN

D

GND

GN

DG

ND

GN

DG

ND

+3V3

0R

10K/

100K

10K/

100K

10K/

100K

10K/

100K

+3V3

GN

D

N.M.

GND

+3V3

+1V8

1uF

1uF

1uF

1uF

1uF

1uF

1uF

1uF

1uF

1uF

1uF

GN

DG

ND

10uF

GN

D

+3V3

GND

0.1uF

+3V3

GN

D

100K

+3V3

ADM811

100KGND

+3V3

GND

MBR0520VCC

GND

GND

+5V

N.M.

74LVC1G125

GND

10K

10K

10K

10K

GND

MBR0520

+5V

GND

GND

1K

1K

1K

1K

+3V3

10K +3V

3G

ND

+3V3

+5V

+5V

GND GNDGND

VCCLM2736 LM1117-ADJ

GND GND

10K

+3V3 +3V3

GND

1K

0R

GND

10uF

GND

0.1uF0.1uF 0.1uF

32.7

68Kh

z

10u SRR0604-100ML

22R

22R

22R22R

CG

0603

MLC

-05E

CG

0603

MLC

-05E

AT45DB021D-SH-B

GNDMC-921_NM

NM

GND

0.5pF

DIGITAL_1

12345678

DIGITAL_2

123456789

10

ANALOG_IN

123456

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

ICSP1 23 45 6

Q2

Q1

L2

R212

34

5

RESET

C38

RR

1A1

8

RR

1B2

7

RR

1C3

6

RR

1D4

5

FTDI

123456

J2VBUS5D-4D+3ID2GND1 SH4 9

SH3 8SH2 7SH1 6

1234 Y1

IC5

40MHZ_IN24

40MHZ_OUT25

ANT_WLAN4

COEX0 21COEX1 32COEX2 14COEX3 13COEX4 5

DCO 31DCDC_ENABLE 26

DVDD17

EXT_PWR_EN 35

GND3

GND 45GND 46GND 47GND 48

NC 18NC 38

ICE_TCK 8

ICE_TDI 6ICE_TDO 12

ICE_TMS 10

ICE_TRST 7

LFC_IN 36

NC 15NC 16

SD_D2 43

SPI_CLK 44SPI_CS 39

NC 9

SPI_IRQ 2

SPI_MISO 1SPI_MOSI 40

TEST_EN 30

VBAT_32K29

VBAT_P33

VCC20

VCC_REG_PLL22

VDD_CKL_1227

VDD_CKL_2628

VDD_IO37

VDD_MAC_BB41

VCC_REG_VCO19

VDD_SDIO42

VPA11

RESET 34SHUTDOWN 23

TXB0108

IC4/1

A11

A23A34

A45

A56

A67A78A89

B1 20

B2 18B3 17

B4 16

B5 15

B6 14B7 13B8 12

OE10

IC4/2

TXB0108GND 11

VCC 19VL2

RESET 18

ADVREF60

DM 48DP 49

GND5GND13GND21GND35GND50GND69GND80GNDANA61

MACB-MDC/PB08 76MACB-MDIO/PB09 77

MACB-RX_DV/PB15 95

MACB-RX_ER/PB07 75

NC 32

PA0019PA0120

PA0223

PA03/EIM-EXTINT[4]24

PA04/EIM-EXTINT[5] 25

PA05/USART1-RXD 26PA06/USART1-TXD 27

PA0728

PA0829

PA0930

PA10/SPI0-NPCS[0] 31

PA11/SPI0-MISO 33

PA12/SPI0-MOSI 36PA13/SPI0-SCK 37

PA14/SPI1-NPCS[0]39PA15/SPI1-SCK40PA16/SPI1-MOSI41PA17/SPI1-MISO42

PA18/SPI1-NPCS[1]43

PA19/SPI1-NPCS[2]44

PA20 45

PA21/USB-USB_ID 51

PA2252PA2353

PA24/EIM-EXTINT[3] 54

PA25 55

PA2656PA2757PA2858

PA29/TWI-SDA83PA30/TWI-SCL84

PB00/MACB-TX_CLK 65PB01/MACB-TX_EN 66PB02/MACB-TXD[0] 70PB03/MACB-TXD[1] 71

PB04 72

PB05/MACB-RXD[0] 73PB06/MACB-RXD[1] 74

PB10 78PB11 81PB12 82PB13 87PB14 88PB16 96PB17 98PB18 99

PB19 100

PB20 1

PB21 2

PB22 3

PB23/TC-A06

PB24 7PB25 8PB26 9PB27 10PB28 14PB29 15PB30 16PB31 17

PC00/XIN3263

PC01/XOUT3264

PC02/XIN085

PC03/XOUT086

PC04/XIN193

PC05/XOUT194

TCK 90

TDI 92

TDO 91TMS 89

VBUS 46

VDDANA59

VDDCORE22

VDDCORE34

VDDCORE38

VDDCORE97

VDDIN12

VDDIO4

VDDIO47

VDDIO67

VDDIO68

VDDIO79

VDDOUT11

VDDPLL62

U1C1

R6

C3

C6

R9

A0 1A1 2A2 3

GND4SCL 6SDA 5

VCC8

WP7

IC1

AT24C128BN-SH-B

NC 1

CS 2

DI 3VCC4

SCK 5

GND6

DO 7

NC 8SHIELDSH1SHIELDSH2SHIELDSH3SHIELDSH4

J1

15TW-8821 RR

2A1

8

RR

2B2

7

RR

2C3

6

RR

2D4

5

R8

C15

C17

C19

C21

C22

C33

C34

C35

C36

C37

C13

C11

JTAG1 23 45 67 89 10

C2

MACB1 23 45 67 89 10

11 1213 14

R4

IC2

GND 1

VCC4 MR 3

RST2

R5

D2

R7

2 4

1

IC6/1

IC6/2

74LVC1G125

VCC 5

GND 3

RR

3A1

8

RR

3B2

7

RR

3C3

6

RR

3D4

5

D3

RR5A1 8

RR5B2 7

RR5C3 6

RR5D4 5

R15

J3

1 2

IC8

BOOST 1

EN4 FB 3GN

D2

SW 6

VIN5

IC7

ADJ

1

VI3 VO 2TAB 4

RB

R14

R16C47

C41C40 C42

Q3

AK

L3

RR4A1 8

RR4B2 7

RR4C3 6

RR4D4 5

Z2Z1

12345678

POWER

12

3

4

5 8

7

6 SISCK

RESET

CS

WP

VCC

GND

SO

IC3

X4

SEL21

C48(EXL1)

VCC

RXDTXD

X1-40

X2-40

EE_SDAEE_SDAEE_SCLEE_SCL

XIN0

XOUT0

XIN1

XOUT1

XIN32

XOUT32

SPI1_MISO

SPI1_MISO

SPI1_MISOSPI1_MOSI

SPI1_MOSI

SPI1_MOSISPI1_SCK

SPI1_SCK

SPI1_SCKHD_CSHD_CS

HD_LFC

HD_IRQHD_IRQ

HD_SHDNHD_SHDNHD_RESETHD_RESET

DF_RESET

DF_RESET

DF_CS

DF_CS

HD_D2

TCKTDOTMS

TDI

RESET_3V3

MTX_CLKMTX_ENMTXD0MTXD1MRXD0MRXD1

MMDIOMRX_DVMEXTINT

RESET

RESET

RXD3TXD3INT13MISO3

MISO3

SCK3

SCK3

MOSI3

MOSI3

SS3

SD_CS3

SD_CS3

MISOSCK

MOSI

SS

INT1

VBUSD-RD-

RD+ D+

MRX_ERMMDC

IDRID

SD_CS

SD_CS

IOREF

IOREF

++

+

+

+

+

+

D6

SS1P

3L

01234567

8910111213

Arduino Wifi Shield

VinGNDGND+5V+3.3VRESET

012345

RxTx

PWM

PWMPWM

PWMPWMPWM

GNDAREF

LED

CONSOLE

IF LM2734YRA=30K9RB=10K

misomosisckcs

New WiFi shield: HDG204Prev. : HDG104

Reference Designs ARE PROVIDED "AS IS" AND "WITH ALL FAULTS. Arduino DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,

Arduino may make changes to specifications and product descriptions at any time, without notice. The Customer must notREGARDING PRODUCTS, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Arduino reservesthese for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.The product information on the Web Site or Materials is subject to change without notice. Do not finalize a design with this information. ARDUINO is a registered trademark.