Arduino UNO R4 Minima User Manual

Arduino® UNO R4 Minima
1 / 17 Arduino® UNO R4 Minima Modified: 19/06/2023
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).
The UNO R4 Minima board's operating voltage is 5 V, making it hardware compatible with UNO form factor accessories
with the same operating voltage. Shields designed for previous UNO revisions are therefore safe to use with this board
but are not guaranteed to be software compatible due to the change of microcontroller.
Target areas:
Maker, beginner, education

Arduino UNO R4 Minima Specifications

General

Operating Voltage	5V
Input Voltage	6-24V
Input Voltage (recommended)	7-12V
Digital I/O Pins	14
PWM Pins	6
Analog Input Pins	6
Flash Memory	256 KB
SRAM	32 KB
Clock Speed	48 MHz
DC Current per I/O Pin	8 mA
DAC	1
UART	1
SPI	1
I2C	1
USB	USB-C
Dimensions	68.6 mm x 53.4 mm
Microcontroller	RA4M1 (Arm Cortex-M4)