Click to expand full text
BU21049GUL
4-wire Resistive Touch Screen Controller
BU21049GUL
●General Description Unlike most resistive touch screen controllers, the BU21049GUL 4-wire resistive touch-screen controller generate data to enable dual touch detection. The Host processor can use data to detect single point coordinates and dual coordinates.
●Features ■ Enables single touch and dual touch using standard 4-wire resistive touch screen ■ I2C like interface for interfacing to the host processor ■ 12-bit Resolution ■ Single 1.65V to 3.60V Supply. ■ Power on reset ■ Auto power down control ■ Built-in clock oscillation circuit
●Typical Application Circuits
●Key Specifications ■ Power supply voltage ■ Temperature range ■ Standby current ■ Sleep current ■ Operating current ■ Coordinate resolution
1.65V～3.6.
BU21049GUL Datasheet
