123"1.8V1" and "1.8V" are connected inside Spresense.

VCC/2+3V3
VCC/2PIC1301

A

COCN1CN1PIC501 COC5C5PIC502

PIR401COR4COC6C6PIC601 PIC602

LINK_LEDRXPCOC7C713SHIELD1 PIJ1013
14SHIELD2 PIJ1014

SLD_GND

PIC701COR6
R6 PIR601
COR7
R7 PIR701

PIR602

PIIC301

PIR702

PIIC302

COR8
R8 PIR801
COR9
R9 PIR901

PIR802

PIIC305

PIC702

PIR301

PIR501

PIC302COC9C9LINK_LED

COR11R11PIR1101

27
ACTLED26
DUPLED
25PIR1102 PIIC3025 LINKLED
24PIIC3024
SPDLED
PIR1002PIIC3026

COC11C11PIC1101

PIC1201

COC12C12PIIC3027

PIC1102

PIC120220PIIC3020

22PIIC3022

C18COP1P1PIC18018PIIC408

COC18 PIC1802 4PIIC4046SCL5SDA PIIC405
PIIC406

I2C_SCL
I2C_SDAPIC102

PIY102

PIIC3045

PIC1701

PIIC3044

10EXRES1 PIIC3010

PIC1702

COC17C17B

COR12R12PIR1201

PIR1202

PIIC30417DNC PIIC307

C1.8V

VSS+3V3COSJ1
EMMC_DATA3 SJ1PISJ10

COC15C15COC14C142PISJ102

PIC1401

PIC1402

PIC15013I2S_DIN

COSJ2SJ2VCC/22PIIC1021PIFL101COC2C2 PIC201

COC4C4 PIC401

PIC20PIC402

COFL1FL1PIIC202

2PISJ202

PIC801 COC8C8PIC802SPI_CS

123PIIC203
4PIIC2045PIIC205
67PIIC2078PIIC208

PIIC201

PISJ201

2PIFL102

PIC1502

COIC2IC2TXB0106PWR

PISJ103

I2S_BCK

11PI C10COR13W5500

SPI_SCKSPI_MISO
SPI_MOSIPISJ203

3COC1C1 PIC10VOUT+3V3

COY1GNDA

VCC

COSJ3
EMMC_DATA2 SJ3PISJ301

1VIN

PIR1302

COIC3IC3+3V3GND

3PIIC10345
PMODE044PMODE143PMODE2 PIIC3043

PIY10PIR1301

PIIC3019

M24C64

COIC1IC11V2O

PIIC3029

GNDA

COIC4IC4EXT_V

INTN
MOSIMISOSCLKSCSN

PIC1602

23RSVD1 PIIC3023
38
RSVD2 PIIC3038
39
RSVD3 PIIC3039
40
RSVD4 PIIC3040
41
RSVD542
RSVD6 PIIC3042

18
VBG
29
GND
3PIIC303 AGND
9
PIIC309 AGND
14PIIC3014
AGND
16
PIIC3016
AGND
19AGND48
PIIC3048 AGND

1PIIC402

R14PIIC401

1 PIP101
2 PIP102

Write PinC

1E02E13PIIC403 E27PIIC407
WC#PIR1401

COR14 PIR1402

TOCAPPIIC3018

1.8V1 1.8V1GNDAPIC1601

36INTN PIIC3036
35
MOSI PIIC303534MISO
33
SCLK PIIC3033
32
SCSN PIIC3032

TXN
TXP

5RXN
6PIIC306
RXP

PIR902

ACT_LED

PIC901
PIC902

COC16C16PIIC3031

PIIC3034

COR10R10PIR1001

02 PICOR5R502
PIR3COR3

COC3C3 PIC301

12RSTN

31XO
30
XI PIIC3030

PIIC3017

TXN
TXPRXN

37RSTN PIIC3037

Y1

PIR201

COR2

ACT_LED

COJ1
J1

PIR402
GNDA9GRN- PIJ109
10GRN+ PIJ1010
11YLW- PIJ1011
12
YLW+ PIJ1012

COCN2CN2B

PIR20RXN

PIJ106I2C_SCL
I2C_SDASEN_AIN5PICN2011

SEN_IRQ_IN
SEN_AIN4TXNRXPPIIC304

1PICN206

PIIC3028

COC10C10PIC1002 PIC1001

2 1

EMMC_DATA3EMMC_DATA2I2S_DIN
I2S_DOUT
SPI_MISO
SPI_MOSI

28VDD
4AVDD
8PIIC308 AVDD
11PIIC3011
AVDD
15PIIC3015
AVDD
17AVDD
21PIIC3021 AVDD

TXP

R4EXT_V

R5PICN1011

1TD+ PIJ101
2
TCT PIJ102
3TD- PIJ103
4RD+ PIJ104
5
RTC PIJ1056RD7NC PIJ107
8GND PIJ108

XRST_PIN_1.8V

PICN202

R2PICN106

123PICN203
4PICN2045PICN205
67PICN207
8PICN2089PICN209
10PICN20101112PICN2012
13PICN2013
PICN201

TXRX
RTSCTSI2S_BCKI2S_LRCKSPI_CSSPI_SCK
3.3V_OUT 1.8V1A

VCC/2PIR102

R3123PICN1034PICN1045PICN105
67PICN1078PICN1089PICN10910PICN1010
1112PICN1012
13PICN1013
PICN102

PIR1012COR1R11.8V

COC13C13PIC1302

R13+3V3

PICN10142PIIC206

16A1B115VCCA VCCB PIIC2015
14A2B2 PIIC2014
13A3B3 PIIC2013
12A4B4 PIIC2012
11A5B510A6B6 PIIC2010
9OE
GND PIIC209
PIIC2016

PIIC2011

RSTNSCSN
SCLK
MISO
MOSI
INTN

PISJ302

2I2S_LRCKPIFL202

1.8V --> 3.3V level shifter

PISJ30

31PIFL201

DTitleCOFL2FL2GNDASize

W5500 Eth R2W5500 Eth made for Finisterra Ether products.
Crane-elec. Co., LTD.

NumberRevision

A4
Date:
File:
123

4/21/2021
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