描述 Description

The ATMXT2912TD-A Automotive touchscreen controller is aimed at display sizes up to 20” and larger; used in center stacks, navigation systems or rear seat entertainment systems. This brand new family of automotive touchscreen controller brings Microchip’s unmatched Adaptive Sensing technology to the Automotive market. Microchip’s latest solution offers superior signal-to-noise capability to address the requirements of thick lens and thick glove support;?supporting multiple thick gloved touches and?operation when fingers or surfaces are wet or moist, whilst preventing the water from being detected as a false touch event. This technology also enables adaptive touch utilizing self-capacitance and mutual-capacitance measurements so all touches are recognized and false touch detections are avoided.Microchip’s new signal shaping technology is lowering emissions significantly and ensures that large touchscreen solutions based on the ATMXT2912TD-A meet the CISPR-25 Level 5 requirements for electromagnetic interference in Automobiles.The controllers also incorporate a new self and sensor diagnostic function, which constantly monitors the integrity of the touch system. The new ATMXT2912TD-A device brings these smart diagnostic features in support of the Automotive Safety Integrity Level as specified in ISO26262.Please contact your local Microchip sales office for pricing information and to place an order.

特性 Features

? Fully automotive-qualified (Grade 2), operating temperature range of -40 to +105 deg C
? Supports up to 16 concurrent touches in real time with touch size reporting
? Communication via a serial interface (I2C or SPI) up to 8MHz
? External high voltage option to increase the signal to noise ratio (SNR)
? Support multiple thick glove (5mm) touches
? Support thick lens (up to 3mm plastic)
? Superior moisture performance
? Support 1D multi touch slider
? Up to 32 touch keys
? Package: LQFP176

簡介

ATMXT2912TD-A屬于集成電路（IC）的觸摸屏控制器。由制造生產(chǎn)的ATMXT2912TD-A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(shè)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。