Resistive Type Touch Screen Control IC - BU21029GUL

Unlike most resistive touch screen controllers, the BU21029GUL 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BU21029GUL-E2 Active VCSP50L2 3000 3000 Taping Yes
Vcc(Min.)[V] 1.65
Vcc(Max.)[V] 3.6
Resolution 4096 x 4096
Stand-by current[µA] 100.0
Host I/F I2C
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 85
  • ・Single and dual touch detection for standard 4-wire resistive touch screens
    ・I²C-like interface for interfacing with the host processor
    ・12-bit resolution
    ・Single 1.65V to 3.60V supply
    ・Power on reset
    ・Auto power down control
    ・Built-in clock oscillator circuit
Technical Data
Application Note

Thermal Resistance

NE Handbook Series

Sensor Networks