The CYAT81688-100AA61Z is a touch screen controller integrated circuit (IC) from Infineon Technologies. It operates in the temperature range of -40°C to 85°C and is part of the automotive series. This IC comes in a 100-LQFP package and has a surface mount mounting type. It is unaffected by REACH regulations and has a voltage supply range of 1.71V to 1.95V and 3V to 5.5V. The CYAT81688-100AA61Z supports both I²C and SPI interfaces, making it easy to integrate into various systems. With its 2-wire capacitive touchscreen technology, it provides reliable and accurate touch input. This active IC is widely used in automotive applications where touch screen control is required.