โมดูลขยายขา 16 GPIO เป็น i2c MCP23017 Serial Interface Module I2C Bidirectional 16-Bit I/O Expander Pins

โมดูลขยายขา 16 GPIO เป็น i2c MCP23017

Descriptions:

The MCP23017 is capable of converting 16-bit parallel data to serial data of the IIC interface and converting each other. An internal integrated power-on reset (POR) circuit is reset to the device's default state. The two opposites become the interrupt source output. The polarity toggle register configures the GPIO input polarity.

Specifications:

- 16-Bit Remote Bidirectional I/O Port:

- - I/O pins default to input

- High-Speed I2C Interface (MCP23017):

- - 100kHz

- - 400kHz

- - 1.7MHz

- Three Hardware Address Pins to Allow Up to Eight Devices On the Bus

- Configurable Interrupt Output Pins:

- - Configurable as active-high, active-low or open-drain

- INTA and INTB Can Be Configured to Operate Independently or Together

- Configurable Interrupt Source:

- - Interrupt-on-change from configured register defaults or pin changes

- Polarity Inversion Register to Configure the Polarity of the Input Port Data

- External Reset Input

- Low Sta...