Overview
- 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-to-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-A
- 6x PWM pins: D3,D5,D6,D9,D10,D11
Peripherals
- Capacitive Touch Sensing Unit (CTSU)
- USB 2.0 Full-Speed Module (USBFS)
- up to 14-bit ADC & 12-bit DAC
- Operational Amplifier (OPAMP)
Power
- Operating voltage for RA4M1 is 5 V
- Recommended input voltage (VIN) is 6-24 V
- Barrel jack connected to VIN pin (6-24 V)
- Power via USB-C® at 5
Communication
- 1x UART (pin D0, D1)
- 1x SPI (pin D10-D13, ICSP header)
- 1x I2C (pin A4, A5, SDA, SCL)
- 1x CAN (pin D4, D5, external transceiver is required)