| 名称 | 序号 | 类型a | 功能 |
| GND | 1 | P | 接地 |
| 3V3 | 2 | P | 供电 |
| EN | 3 | I | 高电平：芯片使能；低电平：芯片关闭；注意：不能让 EN 管脚浮空。 |
| 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 | 接地 |
| EPAD | 41 | P | 接地 |
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