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Home » NEWEST Products » New by Manufacturer » Atmel » Atmel AVR32 UC3L
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The AVR32 UC3L delivers high computational throughput, deterministic real-time control, low power, low
system cost, high reliability, and ease of use. The CPU includes leading-edge features such as DSP arithmetic,
single-cycle multiply-accumulate instructions, and single-cycle SRAM access. In addition, a Peripheral
DMA controller and multi-layer high-speed bus architecture make the UC3 core ideal for high throughput
applications. UC3 devices are perfectly suited for portable and battery-based applications thanks to their outstanding low-power properties.


picoPower™ Technology
Atmel's picoPower technology sets new standard for 32-bit MCU power consumption. With innovations such as Dynamic Frequency Scaling , SleepWalking peripherals, Peripheral DMA controller, and Peripheral Event System, the AT32UC3L operates on less than 1.5 uA with the 32 KHz Real Time Clock active, and less than 100 nA with all oscillators stopped. The device features Atmel’s true 1.6V technology, which keeps the device fully operational in systems with supply voltage ranging from 1.62 to 3.60V.

Integrated Hardware QTouch
The AT32UC3L's built in capacitive touch peripheral unit makes capacitive touch as easy as using just another peripheral. The device supports capacitive touch buttons and sliders, and the hardware support enables the addition of capacitive touch to the application at no additional software overhead. The capacitive touch hardware also allows the microcontroller to wake up from sleep on touch.

FlashVault code protection
The AT32UC3L includes a brand new flash security technology named FlashVault. FlashVault allows the on-chip flash to be partially programmed and locked, creating secure on-chip storage for secret code, keys 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.

Peripheral Event System
The AT32UC3L introduces Atmel's Peripheral Event System for the first time on a 32-bit microcontroller. The innovative peripheral event system allows peripherals to send signals (events) directly to other peripherals without involving the CPU. By offloading to the peripheral event system the repetitive task of forwarding these events, the CPU will reduce drastically the time consuming handling of interrupts. This will free up more time for the CPU to handle other tasks in the application, and often allow the CPU to remain longer in one of the AVR32's many energy saving sleep modes.

Improved reliability and reduced cost
With groundbreaking innovations such as PWM on all GPIO pins, High precision clock system with digital frequency locked loop and crystal oscillator precision tuner, clock failure protection, frequency meter, RTC with calendar mode, windowed watchdog, 9-channel 12-bit ADC, 8 channel Analog Comparator, and embedded trace port, the AT32UC3L is engineered to reduce cost and improve reliability in any design.

Datasheet Links
AT32UC3L Series Summary
AVR32 Architecture Manual
AT32UC3L Series User's Guide
AVR32UC Technical Reference Manual
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  • Atmel
  • Power Management
  • Semiconductors|IC-MCU/MPU