Multitouch Controllers from ROHM Semiconductor

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ROHM Semiconductor
June 26, 2011

The BU21023/BU21024 Series of high-speed, high noise immunity, low-voltage resistive touchscreen controllers from ROHM Semiconductor, San Diego, CA, enable 2-point multitouch operation and intuitive gesture control, including pinching, spreading, and rotating. The ICs integrate a dedicated analog circuit and CPU for precise 2-point coordinate and gesture detection. A built-in calibration function minimizes the effect of panel variations during production as well as fluctuations in touchscreen device characteristics caused by temperature variations or time-based degradation. In contrast to capacitive touchscreens, resistive touchscreens are lower in cost, have higher precision, and can be operated with fingernails or while wearing gloves.


CompanyROHM Semiconductor
CountryUnited States (USA)




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