Datasheet
4-wire Resistive
Touch Screen Controller
BU21025GUL
●General Description BU21025GUL is a low power 4-wire resistive touch screen controller.
BU21025GUL measures coordinates and touch pressures with a 12bit A/D converter.
BU21025GUL has a digital filter for noise reduction.
●Features ■ 4-wire resistive touch screen controller ■ Single 1.
65V to 3.
60V supply.
■ Low standby current ( 0.
8uA max) ■ 12bit SAR A/D converter ■ 2-wire serial interface ■ Command base interface ■ Digital filter ■ Touch pressure measurement ■ Auto power down control ■ Built-in clock oscillation circuit
●Key Specifications ■ Power supply
voltage ■ Temperature range
■ Standby current ■ Operating current ■ Coor...