CST3240 Datasheet (Hynitron) - High performance mutual capacitor multi-touch chip

CST3240, High performance mutual capacitor multi-touch chip

Induction 27 channel Induction 28 channel Induction 29 channel Induction 30 channel Induction 31 channel name TX4 type I/O TX5 I/O TX6 I/O TX7 I/O TX8 I/O functional description Drive channel Drive channel Drive channel Drive channel Drive channel Hynitron Technology Co.,L

Hynitron Technology Co,Ltd.

CST3240 High performance mutual capacitor multi-touch chip 1.

Summary capacitive screen support .

Up to 40 drive / induction channels, and support TX / CST3240 Series multi-point capacitive touch chip, RX interchange; support single-layer, multi-layer module and a variety .

Channel suspension / pull-down design support; of patterns, using multi-channel 7V above high .

Support traditional DITO and SITO and various voltage drive, to achieve high performan

CST3240 Features

* communication interface . I2C master / slave communication interface, rate 50 Khz ~ 400 Khz configurable; GPIO support, a variety of working modes can be matched, built-up resistance mode;

* High-performance capacitance detection circuit . Built-in 1.8V LDO, compatible with 1.8 V / V DDA