Arduino® UNO R4 Minima Product Reference Manual SKU: ABX00080 Description The Arduino UNO R4 Minima (from here on referred to as UNO R4 Minima) is the first UNO board to feature a 32-bit microcontroller. It features a RA4M1 series microcontroller from Renesas (R7FA4M1AB3CFM#AA0), which embeds a 48 MHz Arm® Cortex®-M4 microprocessor. The UNO R4's memory is larger than its predecessors, with 256 kB flash, 32 kB SRAM and 8 kB data memory (EEPROM).
Arduino® UNO R4 Minima Features R7FA4M1AB3CFM#AA0 48 MHz Arm® Cortex®-M4 microprocessor with a floating point unit (FPU) 5 V operating voltage Real-time Clock (RTC) Memory Protection Unit (MPU) Digital Analog Converter (DAC) Memory 256 kB Flash Memory 32 kB SRAM 8 kB Data Memory (EEPROM) Pins 14x digital pins (GPIO), D0-D13 6x analog input pins (ADC), A0-A5 6x PWM pins: D3,D5,D6,D9,D10,D11 Peripherals Capacitive Touch Sensing Unit (CTSU) USB 2.
Arduino® UNO R4 Minima CONTENTS 1 The Board 4 1.1 Application Examples 4 1.2 Related Products 4 2 Recommended Operating Conditions 5 3 Block Diagram 6 4 Board Topology 7 4.1 Front View 7 4.2 Back View 8 5 Microcontroller (R7FA4M1AB3CFM#AA0) 8 6 USB Connector 9 7 Digital Analog Converter (DAC) 9 8 Power Options 9 8.1 Power Tree 9 8.2 Pin Voltage 10 8.3 Pin Current 10 9 Pinout 11 9.1 Analog 12 9.2 Digital 12 9.3 ICSP 13 9.
Arduino® UNO R4 Minima 1 The Board 1.1 Application Examples The UNO R4 Minima is the first UNO series 32-bit development board, being previously based on 8-bit AVR microcontrollers. There are thousands of guides, tutorials and books written about the UNO board, where UNO R4 Minima continues its legacy. The board features the standard 14 digital I/O ports, 6 analog channels, dedicated pins for I²C, SPI and UART connections.
Arduino® UNO R4 Minima Rating 2 Recommended Operating Conditions Symbol VIN Description Min Typ Max Unit Input voltage from VIN pad / DC Jack 6 7.0 24 V VUSB Input voltage from USB connector 4.8 5.0 5.
Arduino® UNO R4 Minima Functional Overview 3 Block Diagram Arduino R4 Minima Block Diagram 6 / 17 Arduino® UNO R4 Minima Modified: 19/06/2023
Arduino® UNO R4 Minima 4 Board Topology 4.1 Front View Top View of Arduino UNO R4 Minima Ref. U1 U2 PB1 JANALOG JDIGITAL J1 J2 J3 7 / 17 Description R7FA4M1AB3CFM#AA0 Microcontroller IC ISL854102FRZ-T Buck Converter RESET Button Analog input/output headers Digital input/output headers ICSP header (SPI) SWD/JTAG Connector CX90B-16P USB-C® connector Ref.
Arduino® UNO R4 Minima 4.2 Back View Back View of Arduino R4 Minima 5 Microcontroller (R7FA4M1AB3CFM#AA0) The UNO R4 Minima is based on the 32-bit RA4M1 series microcontroller, R7FA4M1AB3CFM#AA0, from Renesas, which uses a 48 MHz Arm® Cortex®-M4 microprocessor with a floating point unit (FPU). On the UNO R4 Minima, the operating voltage is fixed at 5 V to be fully retro compatible with shields, accessories & circuits originally designed for older UNO revisions.
Arduino® UNO R4 Minima 6 USB Connector The UNO R4 Minima has one USB-C® port, used to power and program your board as well as sending & receiving serial communication. Note: You should not power the board with more than 5 V via the USB-C® port. 7 Digital Analog Converter (DAC) The UNO R4 Minima has a DAC with up to 12-bit resolution attached to the A0 analog pin. A DAC is used to convert a digital signal to an analog signal.
Arduino® UNO R4 Minima 8.2 Pin Voltage The UNO R4 Minima operates on 5 V, as does all pins on this board except for the 3.3V pin. This pin draws power from the VCC_USB pin on the R7FA4M1AB3CFM#AA0, and is not connected to the buck converter. 8.3 Pin Current The GPIOs on the R7FA4M1AB3CFM#AA0 microcontroller can handle up to 8 mA. Never connect devices that draw higher current directly to a GPIO. In case you need to power external devices that require more power, e.g.
Arduino® UNO R4 Minima Mechanical Information 9 Pinout Pinout for UNO R4 Minima.
Arduino® UNO R4 Minima 9.
Arduino® UNO R4 Minima 9.3 ICSP Pin 1 2 3 4 5 6 Function CIPO +5V SCK COPI RESET GND Type Internal Internal Internal Internal Internal Internal Description Controller In Peripheral Out Power Supply of 5 V Serial Clock Controller Out Peripheral In Reset Ground 9.
Arduino® UNO R4 Minima 11 Board Operation 11.1 Getting Started - IDE If you want to program your UNO R4 Minima while offline you need to install the Arduino® Desktop IDE [1]. To connect the UNO R4 Minima to your computer, you will need a Type-C® USB cable, which can also provide power to the board, as indicated by the LED (DL1). 11.2 Getting Started - Arduino Web Editor All Arduino boards, including this one, work out-of-the-box on the Arduino® Web Editor [2], by just installing a simple plugin.
Arduino® UNO R4 Minima Certifications 12 Declaration of Conformity CE DoC (EU) We declare under our sole responsibility that the products above are in conformity with the essential requirements of the following EU Directives and therefore qualify for free movement within markets comprising the European Union (EU) and European Economic Area (EEA).
Arduino® UNO R4 Minima 14 Conflict Minerals Declaration As a global supplier of electronic and electrical components, Arduino is aware of our obligations with regards to laws and regulations regarding Conflict Minerals, specifically the Dodd-Frank Wall Street Reform and Consumer Protection Act, Section 1502. Arduino does not directly source or process conflict minerals such as Tin, Tantalum, Tungsten, or Gold.
Arduino® UNO R4 Minima French: Lors de l’ installation et de l’ exploitation de ce dispositif, la distance entre le radiateur et le corps est d ’au moins 20 cm. Important: The operating temperature of the EUT can’t exceed 85 ℃ and shouldn’t be lower than -40 ℃. Hereby, Arduino S.r.l. declares that this product is in compliance with essential requirements and other relevant provisions of Directive 201453/EU. This product is allowed to be used in all EU member states.
