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Atmel MCU consumes 300?A at 1MHz

Posted: 16 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? lcd avr flash microcontroller? mcu? mega329? mega649?

Atmel Corp. announced four new members of its LCD AVR flash microcontroller (MCU) family that promise to address the requirements of portable and battery operated applications like home appliance controllers, audio/video equipment and health care products.

The mega329 and 649 have an integrated 100-segment LCD controller and are housed in a 64-pin package, while the mega3290 and 6490 have a 160-segment LCD controller and are available in a 100-pin package.

The LCD AVR family consumes 300?A at an operating frequency of 1MHz and has a throughput of 2MIPS/mW. In the Power-down mode all peripherals, with the exception of external interrupts, are turned off and power consumption drops to 100nA. According to the company, these devices are extremely responsive to external events in both active and power down modes. Interrupts on up to 18 inputs can wake the part from a power down mode in <1?s, which is a 6X improvement, Atmel added.

The press release also said that members of the LCD AVR family help design engineers reduce development costs, design time and ultimately production cost. The products combine a highly code-efficient and powerful microcontroller with a low power Flash memory technology.

"All LCD AVR devices have short wake-up times from low power modes with an operating range from 1.8V to 5.5V," said Odd Jostein Svendsli, the company's AVR Marketing Manager. "They are the best choice for applications requiring high integration and low power consumption. To further reduce power consumption, the CPU clock is controlled by software."

"The designer can select a high clock frequency for computation intensive operations and slow the clock to 32kHz or less to perform simple control functions. This reduces power consumption to 20?A in active mode. This means products designed with the LCD AVR Family will be able to run up to 10 times longer on the equivalent battery power when compared to traditional microcontroller solutions," added Svendsli.

Evaluation and debug tools are already available. The STK502 and STK504 expansion modules cost $99 and $119, respectively. When combined with the STK500 starter kit which is available at $79, they offer all the necessary hardware to evaluate programs and test the capabilities of the LCD AVR family. The STK502 and STK504 include a temperature monitoring application example with C-code drivers for all peripherals including the LCD-driver, and the STK500 enables designers to develop and test their code before the hardware design is completed. Additionally an evaluation kit is available at $19.

The mega329 and 3290 are already available, and are priced at $4.50 and $4.95 for 10,000-piece orders. The mega649 and 6490 will be available in 1Q 2005, and will be priced at $5.25 and $5.75. Volume production for these devices is expected in 2H 2005.

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