STMPE812集成電路（IC）的觸摸屏控制器規(guī)格書PDF中文資料

STMPE812屬于集成電路（IC）的觸摸屏控制器。由意法半導體集團制造生產(chǎn)的STMPE812觸摸屏控制器觸摸屏控制器是一種集成電路，可在觸摸屏傳感器陣列與屏幕操作的設備之間提供接口。該控制器從傳感器陣列（通常是電阻式或電容式）接收位置信息。然后，位置信息又通過串行、并行、USB 或 UART 接口傳遞給微控制器。

Features

■ 4 GPIOs (8 mA drive, 12 mA sink at 3.3 V)

■ 1 additional, general purpose 12-bit ADC

■ Operating voltage 1.65 - 3.6 V

■ Integrated 4-wire touchscreen controller, pendown/

real-time mode, fully-autonomous

■ 1 PWM controller

■ Auto-hibernation and low power

– Typ 0.5 μA in Hibernation mode

– Typ 100 μA in Active mode

■ Interrupt output pin (optional)

■ Reset input pin (optional)

■ Wake-up feature on each port configured as

GPIO input

■ I2C interface

■ 8 kV HBM, 1 kV CDM ESD protection on

X+/X-/Y+/Y-

■ 2 kV HBM, 250 V CDM ESD protection on all

other pins

Applications

■ Portable media players

■ Game consoles

■ Mobile and smart phones

Description

The STMPE812 is a 4-wire resistive touchscreen

controller with 4-bit port expander integrated.

The touchscreen controller is designed to be fully

autonomous, requiring only minimal CPU

intervention for sampling, filtering and preprocessing

operations.