Datasheet

Arduino® UNO R4 WiFi
8 / 23 Arduino® UNO R4 WiFi Modified: 22/06/2023
4 Board Topology
4.1 Front View
Top View of Arduino UNO R4 WiFi
Ref. Description
U1 R7FA4M1AB3CFM#AA0 Microcontroller IC
U2 NLASB3157DFT2G Multiplexer
U3 ISL854102FRZ-T Buck Converter
U4 TXB0108DQSR logic level translator (5 V - 3.3 V)
U5 SGM2205-3.3XKC3G/TR 3.3 V linear regulator
U6 NLASB3157DFT2G Multiplexer
U_LEDMATRIX 12x8 LED Red Matrix
M1 ESP32-S3-MINI-1-N8
PB1 RESET Button
JANALOG Analog input/output headers
JDIGITAL Digital input/output headers
JOFF OFF, VRTC header
J1 CX90B-16P USB-C® connector
J2 SM04B-SRSS-TB(LF)(SN) I2C connector
J3 ICSP header (SPI)
J5 DC Jack
J6 ESP header
DL1 LED TX (serial transmit)
DL2 LED RX (serial receive)
DL3 LED Power (green)
DL4 LED SCK (serial clock)