Microchip Technology ATMXT1189TDAT maXTouch Evaluation Board

Microchip Technology ATMXT1189TDAT maXTouch Evaluation Board is a demonstration and development platform for the MXT1189TD-A Automotive Touchscreen Controller IC. The ATMXT1189TDAT is offered with either I²C (ATMXT1189TDAT-I2C-PCB) or SPI (ATMXT1189TDAT-SPI-PCB) communications interface.

The MXT1189TD-A Automotive Touchscreen Controller is aimed at display sizes up to 13"; used in center stacks, navigation systems, or rear-seat entertainment systems. The MXT1189TD-A 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.

Features

MXTT1189TD Automotive Touchscreen Controller
- Supports up to 16 concurrent touches in real-time with touch size reporting
- Fully automotive-qualified (Grade 2), operating temperature range of -40°C to +105°C
- Communication via an I²C serial interface up to 1MHz
- Communication via an SPI interface up to 8MHz
- External high voltage supply 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
- Up to 16 touch keys
- Package: LQFP144
I²C (ATMXTT1189TDAT-I2C-PCB) or SPI (ATMXTT1189TDAT-SPI-PCB) interface