MICROCHIP ATXMEGA128B1-CUR

The Atmel AVR XMEGA is a family of low power, high performance, and peripheral rich 8/16-bit microcontrollers based on the AVR enhanced RISC architecture. By executing instructions in a single clock cycle, the Atmel AVR XMEGA devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed. The AVR CPU combines a rich instruction set with 32 general purpose working registers. All 32 registers are directly connected to the arithmetic logic unit (ALU), allowing two independent registers to be accessed in a single instruction, executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs many times faster than conventional single-accumulator or CISC based microcontrollers. The Atmel AVR XMEGA B1 devices provide the following features: in-system programmable flash with read-while-write capabilities; internal EEPROM and SRAM; two-channel DMA controller, four-channel event system and programmable multilevel interrupt controller, 53 general purpose I/O lines, real-time counter (RTC); Liquid Crystal Display supporting up to 4x40 segment driver, ASCII character mapping and built-in contrast control (LCD); three flexible, 16-bit timer/counters with compare and PWM channels; two USARTs; one two-wire serial interface (TWI); one full speed USB 2.0 interface; one serial peripheral interface (SPI); AES and DES cryptographic engine; two 8-channel, 12-bit ADCs with programmable gain; four analog comparators (ACs) with window mode; programmable watchdog timer with separate internal oscillator; accurate internal oscillators with PLL and prescaler; and programmable brown-out detection. The program and debug interface (PDI), a fast, two-pin interface for programming and debugging, is available. The devices also have an IEEE std. 1149.1 compliant JTAG interface, and this can also be used for on-chip debug and programming. The ATx devices have five software selectable power saving modes. The idle mode stops the CPU while allowing the SRAM, DMA controller, event system, interrupt controller, and all peripherals to continue functioning. The power-down mode saves the SRAM and register contents, but stops the oscillators, disabling all other functions until the next TWI, USB resume, or pin-change interrupt, or reset. In power-save mode, the asynchronous real-time counter continues to run, allowing the application to maintain a timer base while the rest of the device is sleeping. In power-save mode, the LCD controller is allowed to refresh data to the panel. In standby mode, the external crystal oscillator keeps running while the rest of the device is sleeping. This allows very fast startup from the external crystal, combined with low power consumption. In extended standby mode, both the main oscillator and the asynchronous timer continue to run, and the LCD controller is allowed to refresh data to the panel. To further reduce power consumption, the periphera

• High-performance, low-power Atmel AVR XMEGA 8- and 16-bit Microcontroller
• Nonvolatile program and data memories
• 64K - 128KBytes of in-system self-programmable flash
• 4K - 8KBytes boot section
• 2KBytes EEPROM
• 4K - 8KBytes internal SRAM
• Two-channel DMA controller
• Four-channel event system
• Three 16-bit timer/counters
• Two timer/counters with four output compare or input capture channels
• One timer/counter with two output compare or input capture channels
• High resolution extensions one timer/counter
• Advanced waveform extension (AWeX) on one timer/counter
• Split mode on two timer/counters
• One USB device interface
• USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
• 32 endpoints with full configuration flexibility
• Two USARTs with IrDA support for one USART
• AES and DES crypto engine
• CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) generator
• One two-wire interface with dual address match (I2C and SMBus compatible)
• One serial peripheral interface (SPI)
• 16-bit Real Time Counter (RTC) with separate oscillator
• Liquid Crystal Display (LCD)
• Up to 4x40 segment driver
• Built in contrast control
• ASCII character mapping
• Flexible SWAP of segment and common terminals buses
• Two eight-channel, 12-bit, three hundred thousand SPS Analog to Digital Converters
• Four Analog Comparators with window compare function, and current source feature
• External interrupts on all general purpose I/O pins
• Programmable watchdog timer with separate on-chip ultra low power oscillator
• QTouch library support
• Capacitive touch buttons, sliders and wheels
• Power-on reset and programmable brown-out detection
• Internal and external clock options with PLL
• Programmable multilevel interrupt controller
• Five sleep modes
• Programming and debug interfaces
• JTAG (IEEE 1149.1 Compliant) interface, including boundary scan
• PDI (Program and Debug Interface)
• 53 Programmable I/O pins
• 100-lead TQFP, 100-ball VFBGA
• Operating voltage 1.6 – 3.6V
• Operating frequency
• 0 – 12MHz from 1.6V
• 0 – 32MHz from 2.7V