2345MICROCONTROLLERNC

PIY10PIC301

COC3C315pF

PIC401

PIC402

PIC501

PIC502

PIC601

PIC602COC4C4VCC_USB is the output of theinternal USB LDO providing 3V3
to the peripheral
Refer to figure 26.4 page 555 of theuser manual

NLAREF
AREF+5V

PIR402COSWDIO1+5V

PISWDIO10X

COSWCLK1PISWCLK10X

NLP1080SWDIO
P108_SWDIO 33
PIU1033
P108/GTIOC0B/TMS/SWDIONLP3000SWCLK
P300_SWCLK 32
PIU1032

COC5C5NLR\E\S\E\T\RESET 25
PIU1025

100nF

COC6C6COVCC1USB LDOOUTPUTPIC701

PIR401

PIL101

COC7C7PIL201

4.7µF

COL2L2BLM18PG471SN1D

PIC901
PIC902 COC9C9PIC802
PIC801COC8C8100nF 1µF+3V3

VCL is the output ofthe internal LDO
5PIU105

PIC10 2
PIC1 02
COC10 PIC1 01 COC11
PIC10 1C10C11+5V

B

PIR702
PIR701
PIR802
PIR801
PIR902
PIR901PIVBUS0CON 0X

C

DCOD0
D+USB_D_N
USB_D_P
NLCC2CC2

PID00X
PID00X

VUSB

PIU108

1P400/GTIOC6A
2PIU102P401/GTIOC6B/CTX03P402/CRX016
PIU1016
P407/USB_VBUS/ADTRG015
PIU1015
P408/GTIOC5B/USB_ID
14PIU1014
P409/GTIOC5A/USB_EXICEN
13PIU1013
P410/GTIOC6B
12P411/GTIOC6A

5.1k

PIU1012COR8R8PIBUCK0INTOP10X

VUSB

NLSHIELD2SHIELD2PIC2104.7nF
1kV PIC210

COC21C21SHIELD1PIJ30SHIELD2SHIELD2PIJ30SHIELD3SHIELD3FIXING PIJ30FIXINGPIJ30SHIELD1PIR2302

COR23R231M

GND

PRTR5V0U2X,215

NLUSB0D0P
USB_D_P
NLUSB0D0N
USB_D_N

PIJ30A124PIU204100k
PIR10 1 0.1%

PIR2602

COR26R267EN
8PIU208PG
1PIU201SS02SYNC

COR12R12PIR1202PIC20 1
PIC20 2 COC20C20PHASE

5 PIC1201 PIL301
PIU205

COD3D3PMEG6020AELRXRXTXRTSCTS

10µH 2.3A
PMF42-103MN
PIL3029100k

10FB PIU2010

VCC

6PIU206
PGND
13GNDPAD

11COMP PIU2011
12FS

PIU2013

PIU2012COR21R21100k

PIR2 02
PIR2 01

PIR1902

PIR20 1

COR19
R19249k

COR22R22100k

PID30A
PID30C
PI10X

COR11R11PIR1301
COR13R13PIU209

B
PIJ202

P502_SCI1_RXD
P501_SCI1_TXD+5V

COL3L3PIR1201
PIU202

PIR2102

SHIELD4 PIJ30SHIELD4PIR1901
PIR20 2
PIC2 02
PIC230PIC2 01COC22C22 PIC2301COC23C23COR20R200

PIC1402
COC14C14 PIC1401

PIR1302 33pF
PIR1802

PIR1101

PIC1502
PIC1602
PIC1702
PIC1802 0COC15COC16COC17C15C16C17C18PIC1501
PIC1601
PIC1701
PIC1801 COC1822µF
25V

22µF
25V

22µF
25V

PIR1102

RX
LED

POWER
LED

SCK
LED
P111_GPT3_A

CO1

PIDL10A
PIDL10C
PIR1402+5V

CODL1DL1KPT-1608YC
YELLOW

COR14
R1422µF
25V

PIR1401

COR18R18PIR1801

TX
LED

330

P012

PIDL20A
PIDL20C
PIR1502
PIR1501

CODL2DL2KPT-1608YC
YELLOW

COR15R15330PIDL30APIDL30C
PIR1602
PIR1601

CODL3DL3
HSMG-C190
GREEN

COR16R16330

PIDL40A CODL4DL4KPT-1608YC
PIDL40C YELLOWPIR1702
PIR1701

P013

13.7k

100pF

CC2

PIR240COR24
R245.1k

PIR2502
PIR2501

NLCC1CC1
COR25
R255.1k

1PID401

PIFiducial0101

COFiducial01
Fiducial_1

PIFiducial0201

COFiducial02
Fiducial_2

DSHIELD2

Title: UNO R4 MINIMA

Reference Designs ARE PROVIDED "AS IS" AND "WITH ALL FAULTS. Arduino SA DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING PRODUCTS, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULA R
PURPOSE.
Arduino SA may make changes to specifications and product descriptions at any time, without notice. The Customer must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined".
Arduino SA reserves these 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 info. ARDUINO and other Arduino brands and logos and Trademarks of Arduino SA. All Arduino SA Trademarks cannot be used without owner's formal permission.
1C

COR17
R17330CCRESISTORSPIR2401

32
PID402+5V

SCHOTTKY FOR USB VUSBOVERVOLTAGE
PROTECTION

1nF

PID403

P111_GPT3_A
P110_SCI9_RXD
P109_SCI9_TXD
P112_GPT3_B
P303_GPT7_B
P304_GPT7_A
P107_GPT0_A
P106_GPT0_B
P102_SPI0_RSPCK_GPT2_B_CAN0_RX
P103_SPI0_SSL_GPT2_A_CAN0_TX
P104_IRQ01_GPT1_B
P105_IRQ00_GPT1_A
P302_SCI2_TXD
P301_SCI2_RXD

13.7k

3BOOT PIU203 PIC120

VIN

PIR210

4PID40A

HPH2-A-10-SGA
P108_SWDIO
12P300_SWCLKPIJ20334 PIJ204
PIJ20556 PIJ206
PIJ20778 PIJ208
RESET
PIJ2099 10 PIJ2010

PIJ201

COR10R10COC12C12100nF

ISL854102FRZ-T

PIU2071µF

VUSB

COD4D4PID20C

PIC1302
COC13C13 PIC130122µF
25V PIC1902
COC19C19 PIC1901

PIR2301

ESD
PROTECTIOND

PID20A

22µF
25V

A12GND

PIJ30B1PIR10 2PIU1051

PIV N0TOP10X

USB_D_P
USB_D_NP100_AN22_SCL
P101_AN21_SDA
AREF

COJ2J2+5V

5.1k

VUSBPIR201

COR2R25.1k

SWD CONNECTORCOR9R9B12 A1PH2-06-UA

PIR20P109_SCI9_TXD

COGND1COMD

SCI1VIN
1PIJ4013PIJ403
2PIJ402
19TW-746

COJ1J1PIGND10X

PIR2601 0.1%

COJ4J4USB

PIJ105 PIJ103 PIJ10PIJ106 PIJ104 PIJ102+5V

5.1k

A1GND PIJ30A1

PIJ30A7

PIR60218SCL PIJDIGITAL018
17SDA PIJDIGITAL017
16AREF PIJDIGITAL016
15GND PIJDIGITAL015
14D13/SCK13D12/MISO PIJDIGITAL01312D11/MOSI PIJDIGITAL012
11D10/CS PIJDIGITAL011
10D9 PIJDIGITAL010
9D88D7 PIJDIGITAL08
7D6 PIJDIGITAL07
6D5 PIJDIGITAL06
5D4 PIJDIGITAL05
4D3 PIJDIGITAL04
3D2 PIJDIGITAL03
2D1/TX PIJDIGITAL02
1D0/RX PIJDIGITAL01
PIJDIGITAL09

RESET

5.1k

PIMD0X49
GTIOC2A/AN016/P500 PIU1049 NLP5010SCI10TXD
50 P501_SCI1_TXD
GTIOC2B/AN017/P501 PIU1050 NLP5020SCI10RXD
51 P502_SCI1_RXD
GTIOC3B/AN018/P502

COU2U2USB

5.1k

5.1k

PIJDIGITAL014

COR6R6PIU1029

COBUCK0IN0TOP1CC1PIR502

PIJANALOG01

PIJANALOG06

PIR601COR5R531 NLP3010SCI20RXD
P301_SCI2_RXD
GTIOC4B/P301
30 NLP3020SCI20TXD
P302_SCI2_TXD
GTIOC4A/P302 PIU1030 NLP3030GPT70B
29 P303_GPT7_B
GTIOC7B/P303
28 NLP3040GPT70A
P304_GPT7_A
GTIOC7A/P304 PIU1028

COVIN0TOP1 PMEG6020AELRXPIJ30B620TW-995
1NC
2PIJANALOG02
+5V
IOREF
RESET
3PIJANALOG03RESET
4PIJANALOG04+3V3
3V3
5PIJANALOG05+5V
5V
6GND
VIN
7PIJANALOG07
GND
8PIJANALOG08VIN
9PIJANALOG09DAC P014_AN09_DAC
A0OPAMP+ P000_AN00_AMP+ 10
PIJANALOG010
A111PIJANALOG011
OPAMP- P001_AN01_AMPA2P002_AN02_AMPO 12PIJANALOG012
OPAMP OUTA3P101_AN21_SDA
13PIJANALOG013
A4P100_AN22_SCL
14PIJANALOG014
A5PIU1031

PIU103

COR7R7COJANALOG
JANALOG

PIR10COR1R1PIU1023

PIU101DCJACKA4VBUS PIJ30A4A5CC1 PIJ30A5A6D+ PIJ30A6A7DA8SBU1 PIJ30A8A9VBUS PIJ30A9PIC201
COC2C2PIC20 DNP+5VPIR501

27 INPUT ONLYNMI/INPUT ONLY P200
26 NLMDMDMD/P201 PIU1026 NLP204COLOVE
24 P204 PILOVE0X LOVEGTIOC4B/P204 PIU102423GTIOC4A/P205
22P206 PIU1022

CX90B-16P

B1PIGND20X

VCL17PIU1017
VSS_USB
57PIU1057
AVSS08VSS40PIU1040
VSSB1 A12COGND2GND2VBATT

COJ3J3B9PIJ30B9VBUS
B8PIJ30B8SBU2B7PIJ30B7DB6D+B5PIJ30B5CC2B4PIJ30B4VBUS

20TW-994

MD

34 NLP1090SCI90TXD
P109_SCI9_TXD
CTX0/TDO/SWO/GTIOC1A/P109 PIU1034 NLP1100SCI90RXD
35 P110_SCI9_RXD
CRX0/TDI/GTIOC1B/P110 PIU1035 NLP1110GPT30A
36 P111_GPT3_A
GTIOC3A/P111 PIU1036 NLP1120GPT30B
37 P112_GPT3_B
GTIOC3B/P112 PIU1037
38
GTIOC2A/P113 PIU1038

BUCKCONVERTERCOVBUS0CONN
VBUS_CONN

5.1k

PIU1053SCHOTTKY FOR
REVERSE POLARITYPROTECTION
COD2D2GND

PIR301

PIU1027

USB
CONNECTOR

VUSB

VCC_USB

59PIU1059
P010/AN005/VREFH056
PIU1056
AVCC04PIU104

100nF 4.7µF

B12PIJ30B1234PIPB104
PIPB103

48 NLP1000AN220SCL
P100_AN22_SCL
GTIOC5B/AN022/P100 PIU1048 NLP1010AN210SDA
47 P101_AN21_SDA
GTIOC5A/AN021/P101 PIU1047 NLP1020SPI00RSPCK0GPT20B0CAN00RX
46 P102_SPI0_RSPCK_GPT2_B_CAN0_RX
ADTRG0/GTIOC2B/AN020/P102
45 NLP1030SPI00SSL0GPT20A0CAN00TX
P103_SPI0_SSL_GPT2_A_CAN0_TX
GTIOC2A/AN019/P103 PIU1045 NLP1040IRQ010GPT10B
44 P104_IRQ01_GPT1_B
GTIOC1B/P104 PIU1044 NLP1050IRQ000GPT10A
43 P105_IRQ00_GPT1_A
GTIOC1A/P105 PIU1043 NLP1060GPT00B
42 P106_GPT0_B
GTIOC0B/P106 PIU1042 NLP1070GPT00A
41 P107_GPT0_A
GTIOC0A/P107 PIU1041RES11PIU1011
VCC39PIU1039VCC21PIU1021
VCC_USB_LDO
20PIU1020

NLVREFH0
VREFH0PIL102

PIL202+3V3

PIC702

5.1k

12PIPB1025PIPB105
PIPB101

PIU1046

PIVC 10X

100nF

BLM18PG471SN1DPIU1061

PIR102USB
COJDIGITALJDIGITAL

P300/GTIOC0A/TCK/SWCLK

4.7µF

COL1L1COR4R4PIU109

1571636-3

DCCOR3R36424PIC302

9P213/GTIOC0A/XTAL
10PIU1010
P212/GTIOC0B/EXTAL

1PIY104P215 INPUT ONLY/XCIN
P214 INPUT ONLY/XCOUTPIR302

COPB1PB1P111_GPT3_A
P110_SCI9_RXD

67PIU10764 NLP0000AN000AMP0P000_AN00_AMP+
AN000/P000 PIU1064 NLP0010AN010AMP0
63 P001_AN01_AMPAN001/P001 PIU1063 NLP0020AN020AMPO
62 P002_AN02_AMPO
AN002/P002 PIU1062
61AN003/P003
60AN004/P004 PIU1060
58
VREFL0/AN006/P011 PIU1058 NLP012
55 P012
VREFH/AN007/P012 PIU1055 NLP013
54 P013
VREFL/AN008/P013 PIU1054 NLP0140AN090DAC
53 P014_AN09_DAC
DA0/AN009/P014
52AN010/P015 PIU1052

I2C PULLUPSNOTMOUNTED+5V531NC

18PIU1018
P915/USB_DM
19PIU1019
P914/USB_DPPIU106HEADERS531PIY102

COY1Y1FTX16.000M12SM3S-30/30

A

USB_D_N
USB_D_P23

PIY1038+5V

R7FA4M1AB3CFM#AA0

COC1C1PIC102 PIC1017RESET PUSHBUTTONCOU1U115pF

6642

12345

ID: ABX00080
Date: 23/08/2023
File: TOP.SchDoc
6

Version: V1.2
Time: 18:38:15

Sheet 1 of 1
Author: Silvio Navaretti
7

RevAuthor: Silvio Navaretti8