Espressif Systems ESP32-S2-MINI-2 User Manual page 5

2 Pin Definitions
Name No.
IO0 4
IO1 5
IO2 6
IO3 7
IO4 8
IO5 9
IO6 10
IO7 11
IO8 12
IO9 13
IO10 14
IO11 15
IO12 16
IO13 17
IO14 18
IO15 19
IO16 20
IO17 21
IO18 22
IO19 23
IO20 24
IO21 25
2
IO26 26
NC 27
IO33 28
IO34 29
IO35 31
IO36 32
IO37 33
IO38 34
IO39 35
IO40 36
IO41 37
IO42 38
TXD0 39
RXD0 40
IO45 41
IO46 44
EN 45
Espressif Systems
Table 2 – cont'd from previous page
1
Type Function
I/O/T RTC_GPIO0, GPIO0
I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7
I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD
I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4
I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5
I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6
I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7
I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS
I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1
I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3
I/O/T RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
I/O/T RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
I/O/T RTC_GPIO21, GPIO21
I/O/T SPICS1, GPIO26
— NC
I/O/T SPIIO4, GPIO33, FSPIHD
I/O/T SPIIO5, GPIO34, FSPICS0
I/O/T SPIIO6, GPIO35, FSPID
I/O/T SPIIO7, GPIO36, FSPICLK
I/O/T SPIDQS, GPIO37, FSPIQ
I/O/T GPIO38, FSPIWP
I/O/T MTCK, GPIO39, CLK_OUT3
I/O/T MTDO, GPIO40, CLK_OUT2
I/O/T MTDI, GPIO41, CLK_OUT1
I/O/T MTMS, GPIO42
I/O/T U0TXD, GPIO43, CLK_OUT1
I/O/T U0RXD, GPIO44, CLK_OUT2
I/O/T GPIO45
I GPIO46
High: on, enables the chip.
I Low: off, the chip powers off.
Note: Do not leave the EN pin floating.
5
ESP32-S2-MINI-2 User Manual v0.5