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Category: Embedded System Product News

Atmel AVR XMEGA-B1 Microcontroller is Lower Power Innovative LCD

By Bill Giovino
Oct 24, 2011 - 10:28:05 AM

The new Atmel XMEGA B1 microcontrollers have that supports high-precision analog and a low-power LCD with character mapping. Go ahead, be a character
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Atmel has introduced the Atmel XMEGA-B1 family of microcontrollers that is lower power, with support for LCD and high accuracy ADC.

Atmel XMEGA-B1 Block Diagram
Atmel XMEGA-B1 Block Diagram
The Atmel XMEGA microcontroller family has an 8-bit datapath with a 16-bit ALU. The Atmel XMEGA-B1 is manufactured in Atmel's proprietary low-leakage 0.25µ process. This microcontroller requires only one 1.6V-3.6V power supply.

The Atmel XMEGA-B1 is spec'ed at 100nA RAM retention mode, which retains RAM and can wakeup from any interrupt in 5µsec.

Features of the new Atmel XMEGA-B1 include:

  • 8/16-bit XMEGA core
  • Up to 128KBytes Flash
  • Up to 8KBytes boot Flash
  • Up to 46KBytes SRAM
  • Up to 4KBytes EEPROM
  • 4x40 Segment LCD controller with built-in ASCII character mapping
  • Watchdog
  • Real-time Clock (RTC)
  • 16-bit Timers
  • 32 PWM outputs
  • QTouch Capacitive Touch Peripheral
  • Check Sum module
  • AES/DES Crypto
  • 4-channel Direct Memory Access (DMA) Controller
  • Up to two 12-bit 2MSPS ADC
  • Up to 4-channels 12-bit 1MSPS DAC
  • SPI
  • I2C
  • USB 2.0

The ultra-low-power LCD controller in the Atmel XMEGA-B1 microcontrollers supports up to 4x40 segments and has built-in ASCII character mapping. The LCD module draws only 3µA and includes LCD buffers and power supply. A SWAP mode allows flexible pinout configurations. Modes include programmable segment blinking scrolling text.

The Atmel AVR XMEGA-B1 family boasts high-precision analog peripherals, including two 12-bit analog-to-digital converters (ADCs) with programmable gain. The ADCs operate down to 1.6V operating voltage, and have a combined sample rate up to 4MSPS. Two 12-bit digital-to-analog converters (DACs) have high current outputs, while built-in current outputs enable embedded applications to remove external resistors or other constant current sources.

Pricing and Availability
"The new Atmel AVR XMEGA devices with USB are available now. Pricing starts at U.S. $2.00 each in 10,000-piece quantities."

About Atmel
"Atmel Corporation is a worldwide leader in the design and manufacture of microcontrollers, capacitive touch solutions, advanced logic, mixed-signal, nonvolatile memory and radio frequency (RF) components. Leveraging one of the industry's broadest intellectual property (IP) technology portfolios, Atmel is able to provide the electronics industry with complete system solutions focused on industrial, consumer, communications, computing and automotive markets."

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Atmel AVR XMEGA-B1 Microcontroller is Lower Power Innovative LCD

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