ESP32-S2FH4 Wi-Fi MCU
ESP32-S2 series Wi-Fi MCU in QFN56 7x7mm: GPIO matrix, ADC, DAC, touch, USB OTG, SPI, UART, I2C, I2S, TWAI, LEDC, JTAG. Exposed ground pad 57.
Aliase:ESP32-S2FH4
QFN56 7x7mm Top View
57 Pins
Pinout Table57
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | VDDA | Power | Analog power supply |
| 2 | LNA_IN | Analog | RF LNA input/output |
| 3 | VDD3P3 | Power | Analog power supply |
| 4 | VDD3P3 | Power | Analog power supply |
| 5 | GPIO0 | Digital | GPIO0 |
| 6 | GPIO1 | Digital | ADC1_CH0TOUCH1GPIO1 |
| 7 | GPIO2 | Digital | ADC1_CH1TOUCH2GPIO2 |
| 8 | GPIO3 | Digital | ADC1_CH2TOUCH3GPIO3 |
| 9 | GPIO4 | Digital | ADC1_CH3TOUCH4GPIO4 |
| 10 | GPIO5 | Digital | ADC1_CH4TOUCH5GPIO5 |
| 11 | GPIO6 | Digital | ADC1_CH5TOUCH6GPIO6 |
| 12 | GPIO7 | Digital | ADC1_CH6TOUCH7GPIO7 |
| 13 | GPIO8 | Digital | ADC1_CH7TOUCH8GPIO8 |
| 14 | GPIO9 | Digital | ADC1_CH8TOUCH9FSPIHD |
| 15 | GPIO10 | Digital | ADC1_CH9TOUCH10FSPICS0 |
| 16 | GPIO11 | Digital | ADC2_CH0TOUCH11FSPID |
| 17 | GPIO12 | Digital | ADC2_CH1TOUCH12FSPICLK |
| 18 | GPIO13 | Digital | ADC2_CH2TOUCH13FSPIQ |
| 19 | GPIO14 | Digital | ADC2_CH3TOUCH14FSPIWP |
| 20 | VDD3P3_RTC | Power | RTC domain supply |
| 21 | XTAL_32K_P | Analog | 32 kHz crystal positiveADC2_CH4U0RTS |
| 22 | XTAL_32K_N | Analog | 32 kHz crystal negativeADC2_CH5U0CTS |
| 23 | DAC_1 | Analog | DAC_1 outputADC2_CH6U1TXD |
| 24 | DAC_2 | Analog | DAC_2 outputADC2_CH7U1RXD |
| 25 | GPIO19 | Digital | ADC2_CH8U1RTSUSB_D- |
| 26 | GPIO20 | Digital | ADC2_CH9U1CTSUSB_D+ |
| 27 | VDD3P3_RTC_IO | Power | RTC IO domain supply |
| 28 | GPIO21 | Digital | GPIO21 |
| 29 | SPICS1 | Digital | SPICS1GPIO26 |
| 30 | VDD_SPI | Power | VDD_SPI backup supply / output |
| 31 | SPIHD | Digital | SPIHDGPIO27 |
| 32 | SPIWP | Digital | SPIWPGPIO28 |
| 33 | SPICS0 | Digital | SPICS0GPIO29 |
| 34 | SPICLK | Digital | SPICLKGPIO30 |
| 35 | SPIQ | Digital | SPIQGPIO31 |
| 36 | SPID | Digital | SPIDGPIO32 |
| 37 | GPIO33 | Digital | GPIO33SPIIO4SUBSPIHD |
| 38 | GPIO34 | Digital | GPIO34SPIIO5SUBSPICS0 |
| 39 | GPIO35 | Digital | GPIO35SPIIO6SUBSPID |
| 40 | GPIO36 | Digital | GPIO36SPIIO7SUBSPICLK |
| 41 | GPIO37 | Digital | GPIO37SPIDQSSUBSPIQ |
| 42 | GPIO38 | Digital | GPIO38SUBSPIWP |
| 43 | MTCK | Digital | MTCK JTAG clockGPIO39 |
| 44 | MTDO | Digital | MTDO JTAG data outGPIO40 |
| 45 | VDD3P3_CPU | Power | Digital domain supply |
| 46 | MTDI | Digital | MTDI JTAG data inGPIO41 |
| 47 | MTMS | Digital | MTMS JTAG mode selectGPIO42 |
| 48 | U0TXD | Digital | U0TXD UART0 transmitGPIO43 |
| 49 | U0RXD | Digital | U0RXD UART0 receiveGPIO44 |
| 50 | GPIO45 | Digital | GPIO45 |
| 51 | VDDA | Power | Analog power supply |
| 52 | XTAL_N | Analog | External clock negative |
| 53 | XTAL_P | Analog | External clock positive |
| 54 | VDDA | Power | Analog power supply |
| 55 | GPIO46 | Digital | GPIO46 |
| 56 | CHIP_PU | Digital | Chip enable, high on, low off |
| 57 | GND | Ground | Ground / exposed pad |