| Name |
NO. |
Typea |
Function |
| GND |
1 |
P |
GND |
| 3V3 |
2 |
P |
Power supply |
| EN |
3 |
I |
High level: on, enables the chip |
| Low level: off, the chip powers off |
| Note: Do not leave the EN pin floating |
| IO4 |
4 |
I/O/T |
RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 |
| IO5 |
5 |
I/O/T |
RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 |
| IO6 |
6 |
I/O/T |
RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 |
| IO7 |
7 |
I/O/T |
RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 |
| IO15 |
8 |
I/O/T |
RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P |
| IO16 |
9 |
I/O/T |
RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N |
| IO17 |
10 |
I/O/T |
RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6 |
| IO18 |
11 |
I/O/T |
RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, CLK_OUT3 |
| IO8 |
12 |
I/O/T |
RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7, SUBSPICS1 |
| IO19 |
13 |
I/O/T |
RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D- |
| IO20 |
14 |
I/O/T |
RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+ |
| IO3 |
15 |
I/O/T |
RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 |
| IO46 |
16 |
I/O/T |
GPIO46 |
| IO9 |
17 |
I/O/T |
RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD, SUBSPIHD |
| IO10 |
18 |
I/O/T |
RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4, SUBSPICS0 |
| IO11 |
19 |
I/O/T |
RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5, SUBSPID |
| IO12 |
20 |
I/O/T |
RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6, SUBSPICLK |
| IO13 |
21 |
I/O/T |
RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7, SUBSPIQ |
| IO14 |
22 |
I/O/T |
RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS, SUBSPIWP |
| IO21 |
23 |
I/O/T |
RTC_GPIO21, GPIO21 |
| IO47 |
24 |
I/O/T |
SPICLK_P_DIFF, GPIO47, SUBSPICLK_P_DIFF |
| IO48 |
25 |
I/O/T |
SPICLK_N_DIFF, GPIO48, SUBSPICLK_N_DIFF |
| IO45 |
26 |
I/O/T |
GPIO45 |
| IO0 |
27 |
I/O/T |
RTC_GPIO0, GPIO0 |
| IO35b |
28 |
I/O/T |
SPIIO6, GPIO35, FSPID, SUBSPID |
| IO36b |
29 |
I/O/T |
SPIIO7, GPIO36, FSPICLK, SUBSPICLK |
| IO37b |
30 |
I/O/T |
SPIDQS, GPIO37, FSPIQ, SUBSPIQ |
| IO38 |
31 |
I/O/T |
GPIO38, FSPIWP, SUBSPIWP |
| IO39 |
32 |
I/O/T |
MTCK, GPIO39, CLK_OUT3, SUBSPICS1 |
| IO40 |
33 |
I/O/T |
MTDO, GPIO40, CLK_OUT2 |
| IO41 |
34 |
I/O/T |
MTDI, GPIO41, CLK_OUT1 |
| IO42 |
35 |
I/O/T |
MTMS, GPIO42 |
| RXD0 |
36 |
I/O/T |
U0RXD, GPIO44, CLK_OUT2 |
| TXD0 |
37 |
I/O/T |
U0TXD, GPIO43, CLK_OUT1 |
| IO2 |
38 |
I/O/T |
RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 |
| IO1 |
39 |
I/O/T |
RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 |
| GND |
40 |
P |
GND |
| EPAD |
41 |
P |
GND |