32bit mcu features floating point unit and 5V operation
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Atmel has announced the first 32bit AVR microcontrollers to feature a floating point unit. Targeted at industrial control applications, the AVR UC3 C offers a mix of high processing power, high speed communication and safety and reliability features.
The IEEE 754-1985 compatible fpu increases the device's performance, precision and dynamic range. In addition, the fpu can enhance signal processing, filtering and noise suppression.
With dual CAN ports and 100Mbit/s Ethernet capability, the mcu also features embedded flash and what Andreas Eieland, product marketing manager, described as 'true 5V operation'. "A 5V supply voltage is a requirement for many industrial control applications to allow better signal to noise ratio, particularly in applications that require large switching currents or sensitive analogue instrumentation." Also featured is a 20bit pwm capable of running at 96MHz and 12bit a/d and d/a converters sampling at 2Msample/s.
While including Atmel's Peripheral Event System, that supports inter peripheral communication without the cpu being involved, there is also a clock failure protection function. "If the clock fails," Eieland said, "the system will switch to running from an internal RC."
