Although capacitive touch panels capable of multi-point detection are increasing in popularity, there is still much demand for lower cost resistive touch technology in digital cameras, car navigation systems, and other applications. The resistive touch method typically provides 1-point detection operation using a stylus/pen or for simple button selection. However, ROHM has developed and mass-produced 2-point detection controller ICs that are market-proven and have been widely adopted in automotive applications such as displays for audio and car navigation systems.
Features of BU210xx ICs include;
Compatible with 4-wire resistive touch panels
Integrated CPU, capable of 2-point gesture detection
No external parts are required
Calibration function absorbs characteristics changes due to temperature, ageing, and production variations
Operation possible while wearing gloves or with fingernails
ROHM Semiconductor; www.rohm.com/eu