UR7HCTS2-S840-FG Datasheet | SEMTECH

DESCRIPTION The Screen Coder TM SPI/Serial is a touch screen controller and integrated digitizer IC designed specifically for RISC-based systems, such as wireless Internet appliances. The small, single footprint IC interfaces the system via either the Serial Peripheral Interface (SPI) or Asynchronous Serial Interface. Unlike simple A/D implementations, the Screen Coder TM SPI/Serial does not require plicated software drivers and no processing burden is placed on the CPU. Due to the IC’s superior data processing and sampling rate, the Screen Coder TM SPI/Serial is ideal for use in systems requiring handwriting recognition. Patented-power management techniques are also implemented so that the IC only consumes 1u A of current most of the time, even with the external mouse connected. The IC operates at 3 to 5 Volts. Features of Semtech’s motion algorithm include resistance to RF and other noise which provides smooth and precise motion control. The UR7HCTS2-S840 also works flawlessly with any 4 or 8-wire touch screen, regardless of size or manufacturer. The cost-effective solution requires few external ponents, allowing for a simple and real estate saving implementation. Features - Touch screen controller / digitizer in a single, small footprint IC - Interfaces the system via either Serial Peripheral Interface (SPI) and Asynchronous Serial Interface - Works with any 4- or 8-wire resistive touch screen, regardless of size, material or vendor - Provides high resolution of 1000 points per axis and a sampling rate of 200Hz - Accurate, quick touch response due to advanced sampling technology and patented algorithms - Zero-Power TM operation - IC typically consumes less than 1µA - Highly resistant to RF and other noise sources - Uses sophisticated power management for maximum power savings - Offers external PS/2 port for the hot-plug connection of an external PS/2 pointing device - Capable of providing other Features , such as battery monitoring and GPIO - PS/2 and USB interfaces...