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Atmel adds five new MCUs

Posted: 07 Apr 2005 ?? ?Print Version ?Bookmark and Share

Keywords:atmel? avr flash microcontroller? mcu? avr flash mcu? atmega640?

Atmel Corp.'s five newest 8bit AVR flash microcontrollers (MCUs) boast low power consumption for applications requiring a large code space and extensive interfacing capability, such as single-board computers.

The ATmega640, atmega1280 and atmega2560 come in a 100-pin housing, while the atmega1281 and ATmega2561 has 64 pins. The devices feature 64KB to 256KB of flash program memory, and 8KB of on-chip RAM. With their linear address range, up to 8MB, the AVR devices handle this amount of memory with no paging.

The new device family significantly reduces complete system chip count requirements. The integrated 8MHz RC oscillator can be calibrated to an accuracy of 2 percent, thus avoiding the need for an external crystal in many applications. A watchdog timer running from an independent RC oscillator, and a brown-out detector with programmable detection level is also included, ensuring safe operation at minimum cost.

"The 1.8V operation and variety of low power modes, such as the 100nA power down mode, significantly increases battery life in applications requiring large amounts of code memory," said Odd Jostein Svendsli, Atmel's AVR Marketing Manager. "The high C-code density of the AVR microcontrollers further increases battery life by reducing the number of instructions, hence the time and energy needed to perform each control task of the MCU," he added.

The 100-pin versions include 4 UART channels, 16 ADC channels and 16 Pulse Width Modulation channels, while the 64-pin devices integrate 2 UART channels, 8 ADC channels and 10 PWM channels. The devices have a maximum performance of 16MIPS at 16MHz, delivering to the application a large potential of processing power when needed.

ATmega2561 and ATmega2560 samples are available now, with production scheduled to start in 3Q 2005. The ATmega640, ATmega1280 and ATmega1281 will be sampled in 2Q 2005 with volume production in 4Q 2005. The ATmega640, ATmega1280 and ATmega2560 come in a 100-pin housing, while the ATmega1281 and ATmega2561 are available in a 64-pin package.

Pricing for 10,000 units starts at $4.75 for the ATmega640, $6 for the ATmega1281, $6.40 for the ATmega1280, $7.50 for the ATmega2561 and $7.80 for the ATmega2560. A complete development package is also available to help designers develop their new applications. It includes evaluation and debug tools.

Combined with the STK500 starter kit, the STK501 provide all the necessary hardware to evaluate program and test the capabilities of the ATmega1281 and ATmega2561; while for the ATmega640, ATmega1280 and ATmega2560, the STK500 is associated to the STK503. The JTAGICE mkII emulator supports the integrated on-chip debugging module of these devices through the JTAG interface.

Pricing of the development tools is $79 for the STK500, $99 for the STK501, and $119 for the STK503. JTAGICE mkII is priced at $299. All tools are available now.

- Marty Gold


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