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Atmel Expands its Ultra-low Power Microcontroller Offering with Three New picoPower AVR MCU's

San Jose, CA - Atmel® Corporation (Nasdaq: ATML), announced today three new AVR® microcontrollers with incorporated power-saving technology that provides multi-year battery life in lighting control, security, keyless entry, ZigBee™and other applications that spend a significant amount of their time in sleep mode. The picoPower™technology reduces "power-save" power consumption to as little as 650 nA, even with the 32 kHz clock running and superior brown-out detection, the industry's lowest RTC sleep power consumption.

The three picoPower devices now available are the ATmega164P, ATmega324P and ATmega644P 44-pin general purpose microcontrollers. All three microcontrollers are pin and feature compatible, differing only in the size of Flash, EEPROM and SRAM memory. ATmega164P has 16 KB of self- programmable Flash program memory, whereas the ATmega324P and ATmega644P have 32 KB and 64 KB, respectively. All three devices feature a 10-bit ADC, two USARTs, SPI, Two-Wire-Interface and operate from 1.8 to 5.5 volts with up to 20 MIPS throughput.

AVR picoPower microcontrollers consume as little as 340 uA in active mode, 650 nA in power-save mode with real time counter (RTC), and 100 nA in power-down mode. They will be pin-, performance- and code-compatible with existing AVR microcontrollers.

"Very low power consumption is becoming mandatory in a wide variety of applications," stated Ingar Fredriksen, Director of Product Marketing, AVR products. "This is obviously important for battery-powered applications, but also non-battery applications can benefit from lower power consumption as this allows smaller and lower cost power supplies. To further strengthen the AVR microcontroller's position as an ultra-low-power device, we are now upgrading many of our high-volume products to picoPower technology, enabling the industry's lowest power RTC sleep power consumption. The systems for which we developed picoPower share one attribute; they spend most of their time in sleep mode. Saving a few nanoAmps in sleep mode power consumption can add years to the battery life of the end-product. Atmel has focused on eliminating or drastically reducing the power drain from oscillators, brown-out detectors, I/O pin leakage and the like to achieve the lowest power MCUs on the market," Fredriksen concluded.

Atmel's picoPower technology utilizes a variety of innovative techniques that eliminate unnecessary power consumption in power-down modes. These include an ultra-low-power 32 kHz crystal oscillator, automatic disabling and re-enabling of brown-out detection (BOD) circuitry during sleep modes, a power reduction register (PRR) that completely powers down individual peripherals, and digital input disable registers that turn off the digital inputs to specific pins.

Lunes, 18 Septiembre, 2006 - 11:16
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