STMPE811电阻触摸屏控制应用电路

STMPE811是GPIO端口扩展器,能通过I2C双向总线和数字ASIC进行接口,它的每个I/O口可配置成输入,输出或特别功能,可叫醒.器件工作电压1.8-3.3V,集成了4线触摸屏控制器,8输入12位ADC,SPI和I2C接口,128深度缓冲触摸屏控制器和触摸屏控制器运动算法,主要用`在PMP,GPS,手机和智能手机以及游戏机.

STMPE811应用:

■ Portable media players

■ Game consoles

■ Mobile and smartphones

■ GPS

The STMP811 consists of the following blocks:

● I2C and SPI interface

● Analog-to-digital converver (ADC)

● Touchscreen controller (TSC)

● Driver and switch control unit

● Temperature sensor

● GPIO controller

图1.STMPE811功能方框图

图2.STMPE811触摸屏控制器方框图

图4.STEVAL-ICB004V1应用电路图