STMPE1600数据手册集成电路（IC）的I/O扩展器规格书PDF

描述 Description

The STMPE1600 is a GPIO (general purpose input/output) port expander able to interface a main digital ASIC via the two-line bidirectional bus (I2C). A separate GPIO expander IC is often used in mobile multimedia platforms to solve the problems of the limited amount of GPIOs typically available on the digital engine.
I/O expanders provide a simple solution when additional I/O are needed for several interface functions such as sensors, pushbuttons, LEDs, fans, etc.
The STMPE1600 offers great flexibility as each I/O can be configured as input or output. The device has been designed with very low quiescent current and includes a wakeup feature for each I/O, to optimize the power consumption of the device.

特性 Features

• 16 GPIOs which default to 16 inputs on power-up
• Serial I2C interface (0 to 400 kHz) to the host with noise filter
• Operating voltage 1.65 V - 3.6 V
• I/O voltage 1.65 V - 3.6 V
• Interrupt output pin
• Internal power-on-reset
• Wakeup feature on each I/O
• Up to 8 devices sharing the same bus
• (3 address pins)
• 8 mA current drive/sink on each GPIO at 3.3 V
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简介

STMPE1600属于集成电路（IC）的I/O扩展器。由制造生产的STMPE1600I/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。