Unlike most resistive touch screen controllers, the BU21028FV-M 4-wire resistive touch-screen controller can generate data that enables dual touch detection.
The Host processor can use this data to detect single and dual point coordinates.
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Datasheet Resistive touch screen controller LSI series for Automotive 4-wire Resistive Touch Screen Controller BU21028FV-M General Description Unlike most resistive touch...
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Controller BU21028FV-M General Description Unlike most resistive touch screen controllers, the BU21028FV-M 4-wire resistive touch-screen controller can generate data that enables dual touch detection. The Host processor can use this data to detect single and dual point coordinates. Features AEC-Q100(Note 1) standard 4-wire resistive touch screens Single and dual touch detection I2C-like interface (for the host processor I/F) 12-bit resolution Single 2.7V to 3.
BU21028FV-M Datasheet
