1~4

P1_0~P1_3

GPIO mode default, input or output (push-pull), the state after power on is decided by AD1 and AD0 terminals. Can be configured as LED mode.

默认GPIO模式，输入或输出（推挽结构），上电默认状态由AD1和AD0决定。可设置为LED模式。

5~8

P0_0~P0_3

GPIO mode default, input or output (open-drain (default) or push-pull), the state after power on is decided by AD1 and AD0 terminals. Can be configured as LED mode.

默认GPIO模式，输入或输出（开漏结构（默认）或推挽结构），上电默认状态由AD1和AD0决定。可设置为LED模式。

9

GND

Ground. 地

10~13

P0_4~P0_7

GPIO mode default, input or output (open-drain (default) or push-pull), the state after power on is decided by AD1 and AD0 terminals. Can be configured as LED mode.

默认GPIO，输入或输出（开漏结构（默认）或推挽结构），上电默认状态由AD1和AD0决定。可设置为LED模式。

14~17

P1_4~P1_7

GPIO mode default, input or output (push-pull), the state after power on is decided by AD1 and AD0 terminals. Can be configured as LED mode.

默认GPIO，输入或输出(推挽结构), ，上电默认状态由AD1和AD0决定。可设置为LED模式。

18

AD0

I²C device address, connect to VCC or GND，and control the default state of GPIOs (see table 1)。

I²C器件地址选择，接VCC或GND，并设置GPIO状态（见表1）。

19

SCL

I²C serial clock. I²C时钟

20

SDA

I²C serial data. I²C数据

21

VCC

Power supply. 电源输入端.

22

INTN

Interrupt output pin, open-drain, need external pull-up resistor; active low.

中断输出，开漏结构，需外部上拉电阻；低有效

23

RSTN

Hardware reset pin, active low; internal 100 kΩ (typical) pull-down resistor.

硬件复位，低为复位；内部下拉100 kΩ（典型值）电阻

24

AD1

I²C device address, connect to VCC or GND，and control the default state of GPIO (see table 1)。

I²C器件地址选择，接VCC或GND，并设置GPIO状态（见表1）。

EP

GND

Provides both electrical and thermal connection from the device to the board. Connect to the system ground. 接地。