Arduino Portenta C33: specs and pinout
Low-cost Arduino PRO system-on-module built on a Renesas RA6M5 Cortex-M33 with Wi-Fi, Bluetooth LE and an Ethernet PHY. It has the same form factor as the Portenta H7 and fits the Portenta carriers and shields.
Specs
| Spec | Value | Source |
|---|---|---|
| Microcontroller | Renesas R7FA6M5BH2CBG (RA6M5): Arm Cortex-M33 at 200 MHz | Arduino official documentation Datasheet p.5, Table 1 Main Features |
| Memory | 2 MB flash and 512 kB SRAM internal; 16 MB QSPI flash (MX25L12833F) external | Arduino official documentation Datasheet p.5, Table 1 |
| Wireless | ESP32-C3-MINI-1U: 2.4 GHz Wi-Fi 802.11 b/g/n and Bluetooth Low Energy 5.0; W.FL antenna connector (the supplied W.FL antenna is not compatible with the Portenta H7 U.FL antenna) | Arduino official documentation Datasheet p.5 Table 1; p.8 section 2.7 |
| Ethernet | LAN8742AI 10/100 PHY (RMII) | Arduino official documentation Tech Specs: Ethernet connectivity |
| Analog | ADC: 12-bit, 8 channels (datasheet: two eight-channel 12-bit ADCs); DAC: two 12-bit | Arduino official documentation Datasheet p.5, Table 1; Tech Specs: ADC and DAC |
| Operating (logic) voltage and VIN | Board operating voltage 3.3 V; board input voltage (VIN) 5 V | Arduino official documentation Tech Specs: Power |
| Supply input ranges | VIN 4.1 / 5.0 / 6.0 V (min / typ / max); USB supply 5.0 V typical; battery supply input -0.3 / 3.7 / 4.8 V (min / typ / max) | Arduino official documentation Datasheet p.8, Table 7 Recommended Operating Conditions (the battery row is labelled VUSB in the table) |
| Operating temperature | -40 to 85 C | Arduino official documentation Datasheet p.8, Table 7 |
| I/O pin current limits | 8 mA maximum per pin; 80 mA maximum overall | Arduino official pinout diagram Pinout PDF page 1 and 2, warning box |
Power
| Value | Source | |
|---|---|---|
| Supply | USB-C 5 V, a single-cell 3.7 V Li-ion/Li-Po battery (700 mAh recommended minimum) on the battery connector, or an external 5 V supply on the MKR-style pins | Arduino official documentation Datasheet p.9, Table 8 Board Current Consumption; p.13 section 4.3 Power Supply |
| Current | 86 uA deep sleep (all peripherals off, wake-up on RTC interrupt); 180 mA normal mode (all peripherals on, continuous data download over Wi-Fi) | Arduino official documentation Datasheet p.9, Table 8 Board Current Consumption; p.13 section 4.3 Power Supply |
Pinout
Rows come from the official Portenta C33 full pinout sheet (ABX00074, last update 15 Dec 2023): the MKR-style headers and ESLOV connector on page 1 (left and right columns listed from the USB end downward) and the J1 and J2 high-density connector tables on page 2. High-density pins with no printed function are listed as printed, with the Arduino pin number the sheet gives.
| Pin | Function | Voltage | Notes | Source |
|---|---|---|---|---|
| MKR left 1 (top view, USB end at top) | AREF | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | ||
| MKR left 2 | A0 | 3.3 V logic | AN006; P006; high-density J2-73 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 3 | A1 | 3.3 V logic | AN005; P005; high-density J2-75 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 4 | A2 | 3.3 V logic | AN004; P004; high-density J2-77 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 5 | A3 | 3.3 V logic | AN002; P002; high-density J2-79 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 6 | A4 | 3.3 V logic | AN001; P001; high-density J2-74 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 7 | A5 | 3.3 V logic | AN013; P015; high-density J2-76 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 8 | A6 | 3.3 V logic | AN012; P014; high-density J2-78 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 9 | D0~ | 3.3 V logic | P105; high-density J2-59 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 10 | D1~ | 3.3 V logic | P106; high-density J2-61 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 11 | D2~ | 3.3 V logic | P111; high-density J2-63 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 12 | D3~ | 3.3 V logic | P303; high-density J2-65 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 13 | D4~ | 3.3 V logic | P401; high-density J2-67 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR left 14 | D5~ | 3.3 V logic | P210; high-density J2-60 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 1 | +5V | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| MKR right 2 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| MKR right 3 | +3V3_EXT | 3.3 V | output of the PMIC, not the microcontroller's own 3.3 V net | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 4 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| MKR right 5 | RESET | NRST | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| MKR right 6 | D14/TX | 3.3 V logic | P602; high-density J1-33; SCI_TXD9 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 7 | D13/RX | 3.3 V logic | P110; high-density J1-35; SCI_RXD9 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 8 | D12 | 3.3 V logic | P408; high-density J1-46; IIC_SCL0 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 9 | D11 | 3.3 V logic | P407; high-density J1-44; IIC_SDA0 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 10 | D10/CIPO | 3.3 V logic | P315; high-density J2-39; SCI_RXD4 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 11 | D9/SCLK | 3.3 V logic | P204; high-density J2-37; SCI_SCK4 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 12 | D8/COPI | 3.3 V logic | P900; high-density J2-41; SCI_TXD4 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 13 | D7/CS | 3.3 V logic | P402; high-density J2-35; SCI_CTS4 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| MKR right 14 | ~D6 | 3.3 V logic | P601; high-density J2-62 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| ESLOV 1 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| ESLOV 2 | SDA | 3.3 V logic | P407; high-density J1-44; IIC_SDA0 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| ESLOV 3 | SCL | 3.3 V logic | P408; high-density J1-46; IIC_SCL0 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| ESLOV 4 | INT/CS | 3.3 V logic | P402; high-density J2-35; SCI_CTS4 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) |
| ESLOV 5 | +5V | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| RGB LED red | D34 / LEDR | P107 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| RGB LED green | D35 / LEDG | P400 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| RGB LED blue | D36 / LEDB | P800 | Arduino official pinout diagram Pinout PDF ABX00074, page 1 (MKR-style headers) | |
| J1-1 | ETH A+ | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-3 | ETH A- | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-5 | ETH B+ | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-7 | ETH B- | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-17 | ETH L1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-19 | ETH L2 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-21 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-22 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-23 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-24 | USB0 VBUS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-25 | USB1 D+ | USB_HS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-26 | USB0 D+ | USB_FS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-27 | USB1 D- | USB_HS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-28 | USB0 D- | USB_FS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-29 | USB1 ID | USB_HS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-30 | USB0 ID | USB_FS | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-31 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-32 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-33 | UART1 TX | Arduino pin D14; SCI9 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-34 | UART0 TX | Arduino pin 49; SCI7 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-35 | UART1 RX | Arduino pin D13; SCI9 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-36 | UART0 RX | Arduino pin 50; SCI7 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-37 | UART1 RTS | Arduino pin 61; SCI9 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-38 | UART0 RTS | Arduino pin 51; SCI7 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-39 | UART1 CTS | Arduino pin 62; SCI9 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-40 | UART0 CTS | Arduino pin 52; SCI7 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-41 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-42 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-43 | I2C1 SDA | Arduino pin 37; IIC1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-44 | I2C0 SDA | Arduino pin D11; IIC0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-45 | I2C1 SCL | Arduino pin 38; IIC1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-46 | I2C0 SCL | Arduino pin D12; IIC0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-47 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-48 | VIN | 5 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-49 | CAN1 TX | Arduino pin 44; FD1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-50 | CAN0 TX | Arduino pin 42; FD0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-51 | CAN1 RX | Arduino pin 43; FD1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-52 | CAN0 RX | Arduino pin 41; FD0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-53 | VSYS | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-54 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-55 | SDC CLK | Arduino pin 84; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-56 | I2S MCK | Arduino pin 63; SSI0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-57 | SDC CMD | Arduino pin 85; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-58 | I2S WS | Arduino pin 64; SSI0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-59 | SDC D0 | Arduino pin 86; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-60 | I2S SDI | Arduino pin 65; SSI0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-61 | SDC D1 | Arduino pin 87; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-62 | I2S SDO | Arduino pin 66; SSI0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-63 | SDC D2 | Arduino pin 88; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-64 | VSYS | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-65 | SDC D3 | Arduino pin 89; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-66 | (no function printed) | Arduino pin 82 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-67 | SDC CD | Arduino pin 90; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-68 | (no function printed) | Arduino pin 83 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-69 | SDC WP | Arduino pin 91; SDHIO | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-72 | V-SDCARD/+3V3_EXT | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-73 | RESET | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J1-75 | SWDIO | JTAG | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-77 | SCK | JTAG | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J1-79 | SWO | JTAG | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-1 | BOOT | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J2-3 | BT_SEL | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | ||
| J2-5 | PWRON | also shown as PWRON on the U2 PMIC | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-7 | LICELL | power input; also shown on the U2 PMIC | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-22 | (no function printed) | Arduino pin 69 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-20 | (no function printed) | Arduino pin 70 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-18 | (no function printed) | Arduino pin 68 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-16 | (no function printed) | Arduino pin 74 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-14 | (no function printed) | Arduino pin 67 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-12 | (no function printed) | Arduino pin 71 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-10 | (no function printed) | Arduino pin 72 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-8 | (no function printed) | Arduino pin 73 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-6 | (no function printed) | Arduino pin 75 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-4 | (no function printed) | Arduino pin 76 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-23 | +3V3_EXT | 3.3 V | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-24 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-25 | UART3 TX | 3.3 V logic | Arduino pin 53; SCI6 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-26 | UART2 TX | 3.3 V logic | Arduino pin 57; SCI5 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-27 | UART3 RX | 3.3 V logic | Arduino pin 54; SCI6 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-28 | UART2 RX | 3.3 V logic | Arduino pin 58; SCI5 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-29 | UART3 RTS | 3.3 V logic | Arduino pin 55; SCI6 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-30 | UART2 RTS | 3.3 V logic | Arduino pin 59; SCI5 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-31 | UART3 CTS | 3.3 V logic | Arduino pin 56; SCI6 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-32 | UART2 CTS | 3.3 V logic | Arduino pin 60; SCI5 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-33 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-34 | +3V3_EXT | 3.3 V | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-35 | SPI0 CS | 3.3 V logic | Arduino pin D7; SCI4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-36 | SPI1 CS | 3.3 V logic | Arduino pin 48 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-37 | SPI0 SCLK | 3.3 V logic | Arduino pin D9; SCI4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-38 | SPI1 SCLK | 3.3 V logic | Arduino pin 47 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-39 | SPI0 CIPO | 3.3 V logic | Arduino pin D10; SCI4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-40 | SPI1 CIPO | 3.3 V logic | Arduino pin 45 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-41 | SPI0 COPI | 3.3 V logic | Arduino pin D8; SCI4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-42 | SPI1 COPI | 3.3 V logic | Arduino pin 46 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-43 | +3V3_EXT | 3.3 V | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-44 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-45 | I2C2 SDA | 3.3 V logic | Arduino pin 39; SCI2 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-46 | GPIO 0 | 3.3 V logic | Arduino pin 27 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-47 | I2C2 SCL | 3.3 V logic | Arduino pin 40; SCI2 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-48 | GPIO 1 | 3.3 V logic | Arduino pin 28 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-49 | (no function printed) | Arduino pin 78 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-50 | GPIO 2 | 3.3 V logic | Arduino pin 29 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-51 | (no function printed) | Arduino pin 79 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-52 | GPIO 3 | 3.3 V logic | Arduino pin 30 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-53 | (no function printed) | Arduino pin 80 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-54 | GPIO 4 | 3.3 V logic | Arduino pin 31 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-55 | (no function printed) | Arduino pin 81 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-56 | GPIO 5 | 3.3 V logic | Arduino pin 32 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-57 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-58 | GPIO 6 | 3.3 V logic | Arduino pin 33 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-59 | PWM 0 | 3.3 V logic | Arduino pin D0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-60 | PWM 5 | 3.3 V logic | Arduino pin D5 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-61 | PWM 1 | 3.3 V logic | Arduino pin D1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-62 | PWM 6 | 3.3 V logic | Arduino pin D6 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-63 | PWM 2 | 3.3 V logic | Arduino pin D2 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-64 | PWM 7 | 3.3 V logic | Arduino pin 23 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-65 | PWM 3 | 3.3 V logic | Arduino pin D3 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-66 | PWM 8 | 3.3 V logic | Arduino pin 24 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-67 | PWM 4 | 3.3 V logic | Arduino pin D4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-68 | PWM 9 | 3.3 V logic | Arduino pin 25 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-69 | +3V3_EXT | 3.3 V | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
| J2-70 | GND | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-71 | ADC VREF+ | power output | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-72 | GND/VREF- | 0 V | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-73 | ADC A0 | Arduino pin A0 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-74 | ADC A4 | Arduino pin A4 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-75 | ADC A1 | Arduino pin A1 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-76 | ADC A5 | Arduino pin A5 (A5/DAC1 on the sheet) | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-77 | ADC A2 | Arduino pin A2 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-78 | ADC A6 | Arduino pin A6 (A6/DAC0 on the sheet) | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-79 | ADC A3 | Arduino pin A3 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) | |
| J2-80 | ADC A7 | Arduino official pinout diagram Pinout PDF ABX00074, page 2 (J1/J2 high-density connectors) |
Build with it
Project ideas for the Arduino Portenta C33. Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.
- Wi-Fi temperature and humidity page: The C33 has Wi-Fi on board. The DHT22 runs from 3.3 V to 6 V, so it can use the board's 3.3 V output, with its data line on one 3.3 V pin (8 mA maximum per pin). Check the module's pin order on its silkscreen. Learning project.
- Bluetooth LE colour light: The C33 has Bluetooth Low Energy 5.0 and an RGB LED on board (D34, D35, D36), so no extra parts are needed and no pin has to drive an external load.
- Analog knob logger: The C33's ADC is 12-bit. Wire the potentiometer's outer pins to the 3V3_EXT pin and GND so the input stays at or below 3.3 V, and the wiper to A0.
- Wired network status page: The C33 has an Ethernet PHY on board and the Mid Carrier adds the RJ45 connector. Power and programming come over USB-C.
Common mistakes
- Drawing more than 8 mA from a single pin or 80 mA from all pins together, for example driving an LED bar or a relay coil straight from a pin (source: Arduino official pinout diagram)
- Connecting a battery without an NTC thermistor lead: the pinout sheet warns that the battery must have an NTC cable (source: Arduino official pinout diagram page 1)
- Treating +3V3_EXT as the microcontroller's own 3.3 V rail: it is a separate net generated by the PMIC (source: Arduino official pinout diagram page 1 note)
Not covered by the official source
- The datasheet's current table gives no maximum value.
- The Table 7 battery row is labelled VUSB in the datasheet; it is shown here as a battery supply input.
- 5 V tolerance of the I/O pins is not stated in the Arduino documents, so it is left empty.
Sources
- Arduino official documentation (Portenta C33 User Manual, ABX00074, modified 07/11/2026)
- Arduino official pinout diagram (Portenta C33 full pinout, last update 15 Dec 2023)
- Arduino official documentation (Arduino Portenta C33 hardware page, Tech Specs)