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MCUs offer built-in touch interface

Posted: 21 Jun 2012 ?? ?Print Version ?Bookmark and Share

Keywords:MCU? touch interface? dual FLASH?

Fujitsu Semiconductor Asia Pte Ltd (FSAL) has introduced the MBB95850/860/870 series of MCUs.

The devices, which are equipped with high security, high precision and cost-effective dual FLASH built-in a capacitive touch interface, include two 24-pin MB95856 devices equipped with high-sensitivity capacitive touch interface, one 32-pin MB95866, and two 48/52-pin MB95876 devices.

The growing popularity of touchscreen devices in different markets has seen the rapid development of the interface, with capacitive touchscreen applications developing the fastest. Compared to traditional mechanical and resistive touch technologies, capacitive touch provides a smoother experience, includes a touch screen with that transmits light excellently, and features a robust touch panel. Also, capacitive touch screens are dust-proof, water-proof, anti-electromagnetic and do not interfere with light signals.

Based on the 8bit MCUF2MC-8FX Family, the series uses Adjacent Pattern Interference Suppression (APIS) and Configurable Automatic Impedance Calibration (AIC) touch technology, which enables touch MCU to accurately identify touch input at various temperatures and in humid environments, and under different ground and complex working conditions.

A built-in capacitive touch peripheral unit makes the capacitive touch function easy to use, much like common peripherals. The products support capacitive touch button and slider functions, while its hardware supports capacitive touch functionality, meaning that no additional software overhead is needed.

This series employs dual channel FLASH technology, to protect important customer data. The series integrates various timers with multiple channels and high versatility, 10bit high resolution A/D convertor, oscillation circuit, low-voltage detection circuit, UART/SIO circuit, I2C circuit and built-in one-channel analog comparator, which greatly reduces the number of components in the customer's system and improves product integration accordingly.

The MBB95850/860/870 series adopts 180nm technologies to achieve a high energy-efficiency design. This series uses advanced technologies, which allows the components to integrate better and more precisely. For example, the chip integrates an oscillator with a frequency of 16.25MHz (2%), a data flash memory that supports background operation and 100,000 read/write operations, a built-in A/D convertor and a low-voltage detection circuit that helps to realize higher precision.

The MBB95850/860/870 series employs common development tools and software development environment. This series adopts single wire on-chip debug function, which assists customers in debugging by using the least number of pins.

The products are:

MCU products

The prices and delivery times are $2 for the MB95850 series for delivery in July 2012; $2.50 for the MB95860 series and $3 for the MB95870 series, both for delivery starting June 2012. Mass production delivery starts from September 2012.





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