Atmel Corp. has expanded its 32-bit MCU portfolio consisting of ARM and AVR32 products with the release of the AT32UC3L AVR32 microcontroller which, featuring the company’s picoPower low power technology, boasts less than 0.48mW/MHz power consumption in active mode executing real-life applications. The MCU is also the first 32-bit microcontroller to feature a built-in capacitive touch interface, making the device suitable in a wide range of embedded applications.
The AT32UC3L operates on less than 1.5µA with the 322Hz Real Time Clock active, and below 100nA with all oscillators stopped. Features Atmel’s true 1.6V technology, the device maintains full operation in systems with supply voltage ranging from 1.62 to 3.6V. The AT32UC3L’s built in capacitive touch peripheral unit enables it to support capacitive touch buttons and sliders. The hardware support enables the addition of capacitive touch to the application with no additional software overhead. It also allows the microcontroller to wake up from sleep on touch. Atmel’s QTouch technology features high signal to noise ratio, improving the system’s design margin, increasing EMC performance, and raising ESD tolerance.
The AT32UC3L also includes the FlashVault flash security technology, which allows the on-chip flash to be partially programmed and locked, creating secure on-chip storage for secret code and software intellectual property. Code stored in the FlashVault will execute as normal, but cannot be read, copied or debugged. This allows a device with FlashVault code protection to carry a piece of valuable software such as a math library or an encryption algorithm from a trusted location to a potentially untrustworthy partner where the rest of the source code can be developed, debugged and programmed.
Atmel’s AT32UC3L’s clock system also features clock failure protection, frequency meter, real time clock with calendar mode, a precision crystal oscillator tuner, and accurate digital frequency locked loop. The peripherals include a nine-channel 12-bit ADC and eight-channel analog comparator.
Atmel Corp.
www.atmel.com
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Featuring Atmel’s picoPower low power technology, the 32-bit AT32UC3L AVR32 microcontroller boasts less than 0.48mW/MHz power consumption in active mode executing real-life applications.
