DEVICE OVERVIEW

The MCP23016 device provides 16-bit, general purpose, parallel I/O expansion for I2C bus applications. This device includes high-current drive capability, low supply current and individual I/O configuration. I/O expanders provide a simple solution when additional I/Os are needed for ACPI, power switches, sensors, push buttons, LEDs and so on.

Features

• 16-bit remote bidirectional I/O port

- 16 I/O pins default to 16 inputs

•Fast I2C™ bus clock frequency (0 - 400 kbits/s)

• Three hardware address pins allow use of up to eight devices

• High-current drive capability per I/O: ±25 mA

• Open-drain interrupt output on input change

• Interrupt port capture register

• Internal Power-On Reset (POR)

• Polarity inversion register to configure the polarity of the input port data

• Compatible with most microcontrollers

• Available temperature range:

- Industrial (I): -40°C to +85°C

MCP23016属于集成电路（IC） > I/O 扩展器。微芯科技股份有限公司制造生产的MCP23016I/O 扩展器该系列器件可与微控制器、微处理器或类似器件结合使用，目的是增加可用于连接外设的信号连接数量。典型的工作概念涉及使用串行通信，只需主机设备上的几根 I/O 线，即可读/写扩展器设备上的许多输入/输出引脚的状态。该技术的通信速度不佳，但连通性较高，最适合快速响应不是很关键的应用，例如许多人机界面应用。