Seeed Studio XIAO ESP32-S3 pinout
All 24 pins of the Seeed Studio XIAO ESP32-S3, each mapped to the ESP32-S3R8 pad it routes to, with its functions and — for 18 pins — the electrical limits from the chip datasheet. Every number cites its page and table.
24 pins documented18 with electrical limits15 gpio2 power in3 ground1 power out1 control2 usbcomplete pinout
Pin table
Markdown · JSONSeeed Studio XIAO ESP32-S3 pins, functions and electrical limits
| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant | Abs max | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D0 | castellated_edge · L1 | gpio | GPIO1 | D0, GPIO1, PWM (LEDC), ADC, TOUCH1, ADC1_CH0, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO1, sar_i2c_sda_0 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D1 | castellated_edge · L2 | gpio | GPIO2 | D1, GPIO2, PWM (LEDC), ADC, TOUCH2, ADC1_CH1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO2, sar_i2c_scl_1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D2 | castellated_edge · L3 | gpio | GPIO3 | D2, GPIO3, PWM (LEDC), ADC, TOUCH3, ADC1_CH2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO3, sar_i2c_sda_1 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D3 | castellated_edge · L4 | gpio | GPIO4 | D3, GPIO4, PWM (LEDC), ADC, TOUCH4, ADC1_CH3, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO4 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D4 | castellated_edge · L5 | gpio | GPIO5 | D4, GPIO5, PWM (LEDC), ADC, SDA, TOUCH5, ADC1_CH4, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO5 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D5 | castellated_edge · L6 | gpio | GPIO6 | D5, GPIO6, PWM (LEDC), ADC, SCL, TOUCH6, ADC1_CH5, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO6 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D6 | castellated_edge · L7 | gpio | GPIO43 | D6, GPIO43, PWM (LEDC), TX, U0TXD, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| 5V | castellated_edge · R1 | power in | power_in | p.2 table 2_1 | |||||||||
| GND | castellated_edge · R2 | ground | ground | ||||||||||
| 3V3 | castellated_edge · R3 | power out | power_out | https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/new-res/202003751_XIAO%20ESP32S3_v1.4_SCH&PCB_260226.zip | |||||||||
| D10 | castellated_edge · R4 | gpio | GPIO9 | D10, GPIO9, PWM (LEDC), ADC, MOSI, TOUCH9, ADC1_CH8, SUBSPIHD, FSPIHD, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO9 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D9 | castellated_edge · R5 | gpio | GPIO8 | D9, GPIO8, PWM (LEDC), ADC, MISO, TOUCH8, ADC1_CH7, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO8 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D8 | castellated_edge · R6 | gpio | GPIO7 | D8, GPIO7, PWM (LEDC), ADC, SCK, TOUCH7, ADC1_CH6, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO7 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D7 | castellated_edge · R7 | gpio | GPIO44 | D7, GPIO44, PWM (LEDC), RX, U0RXD, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| MTDO | back_pads · TP4 | gpio | GPIO40 | MTDO, GPIO40, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| MTDI | back_pads · TP3 | gpio | GPIO41 | MTDI, GPIO41, D12, ADC, TOUCH13, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| MTCK | back_pads · TP5 | gpio | GPIO39 | MTCK, GPIO39, CLK_OUT3, SUBSPICS1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| MTMS | back_pads · TP2 | gpio | GPIO42 | MTMS, GPIO42, D11, ADC, TOUCH12, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera) | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| EN | back_pads · TP6 | control | CHIP_PU | RESET / EN (CHIP_PU) | 2.475–3.6 V | -0.3–0.825 V | no | ESP32-S3 datasheet p.65 table 65_2 | |||||
| GND | back_pads · TP1 | ground | ground | ||||||||||
| D- | back_pads · TP7 | usb | GPIO19 | USB_D-, GPIO19, ADC2_CH8, U1RTS, CLK_OUT2, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO19 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| D+ | back_pads · TP8 | usb | GPIO20 | USB_D+, GPIO20, ADC2_CH9, U1CTS, CLK_OUT1, GPIO matrix (any routable peripheral signal: UART, I2C, I2S, LEDC PWM, MCPWM, RMT, PCNT, TWAI, SPI, LCD/camera), RTC_GPIO20 | 2.475–3.6 V | -0.3–0.825 V | ≥ 2.64 V | ≤ 0.33 V | 40 mA typ | 28 mA typ | no | -0.3–3.6 V | ESP32-S3 datasheet p.65 table 65_2 |
| BAT+ | back_pads · BAT+ | power in | power_in | p.2 table 2_1 | |||||||||
| BAT- | back_pads · BAT- | ground | ground |
Answers from the record
Seeed Studio XIAO ESP32-S3 pinout FAQ
What microcontroller does the Seeed Studio XIAO ESP32-S3 use?
The Seeed Studio XIAO ESP32-S3 is built around the ESP32-S3R8, alongside GD25Q64ENIGR, SGM6029CYG/TR, SGM40567-4.2XG/TR.
How many GPIO pins does the Seeed Studio XIAO ESP32-S3 have?
11 GPIO pins are exposed. Xirkit documents 24 board pins, 18 of them with pin-level electrical limits.
Are the Seeed Studio XIAO ESP32-S3 I/O pins 5 V tolerant?
No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.475–3.6 V.
How much current can a Seeed Studio XIAO ESP32-S3 GPIO pin source?
Documented output-high current per pin: 40 mA typ. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Seeed Studio XIAO ESP32-S3?
Supply range 3.7–5 V. Power inputs: 5V, BAT+.
Go deeper
Related data
Looking for something else? Browse every structured part.