ATMXT112UD数据手册集成电路（IC）的触摸屏控制器规格书PDF

描述 Description

The ATMXT112UD touchscreen controller family has 2 derivatives (namely MXT336UD and MXT228UD) and is aimed at touchscreen sizes up to 4.5-inches used in the home appliance market where Functional Safety is required. This device is IEC/UL 60730 Class B certified and offers unique safety-related features that enable system shut off through an intuitive soft button on a touchscreen, removing the requirement for an external safety certified stop or cancel button and associated microcontroller (MCU). This IC allows an appliance to detect touchscreen related failures and shut down the appliance automatically through a variety of self-test capabilities.Proprietary differential touch sensing delivers unparalleled noise immunity ensuring superior touch performance even in harsh environments. It enables detection and tracking of multi-finger thick gloved touch through a wide variety of overlay materials and thicknesses, even in the presence of moisture, water and even salt water. This SNR combined with a high acquisition speed provides a fast, accurate and reliable a touch position. The controller also incorporates a new self and sensor diagnostic function, which constantly monitors the integrity of the touch system.

特性 Features

IEC/UL 60730 Class B Certified
IEC 61000-4-6, 7Vrms, Class A (normal touch operation) conducted noise immunity
Scaled Deltas (remove false touches while cleaning with bleach or Windex)
Supports multi finger thick glove (5mm) touch
Supports thick lenses up to 10mm glass
Adaptive Sensing (Self and Mutual cap)
Communication via I2C interface
Supports up to 10 concurrent touches in real time with touch area reporting
Superior moisture performance
High voltage option via internal voltage pump to increase signal to noise ratio (SNR)
Operating temperature range of -40 to +85 deg C
Package: 56-pin XQFN

简介

ATMXT112UD属于集成电路（IC）的触摸屏控制器。由制造生产的ATMXT112UD触摸屏控制器触摸屏控制器是一种集成电路，可在触摸屏传感器阵列与屏幕操作的设备之间提供接口。该控制器从传感器阵列（通常是电阻式或电容式）接收位置信息。然后，位置信息又通过串行、并行、USB 或 UART 接口传递给微控制器。