ATXMEGA256A3BU Datasheet, PDF (1/143 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA A3BUMicrocontroller

Features
8/16-bit Atmel XMEGA A3BUMicrocontroller
ATxmega256A3BU
 High-performance, low-power Atmel^®AVR^®XMEGA^® 8/16-bit Microcontroller
 Nonvolatile program and data memories
 256KBytes of in-system self-programmable flash
 8KBytes boot section
 4KBytes EEPROM
 16KBytes internal SRAM
 Peripheral features
 Four-channel DMA controller
 Eight-channel event system
 Seven 16-bit timer/counters
 Four timer/counters with four output compare or input capture channels
 Three timer/counters with two output compare or input capture channels
 High resolution extension on all timer/counters
 Advanced waveform extension (AWeX) on one timer/counter
 One USB device interface
 USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant
 32 Endpoints with full configuration flexibility
 Six USARTs with IrDA support for one USART
 Two two-wire interfaces with dual address match (I²C and SMBus compatible)
 Two serial peripheral interfaces (SPIs)
 AES and DES crypto engine
 CRC-16 (CRC-CCITT) and CRC-32 (IEEE^® 802.3) generator
 32-bit real time counter (RTC) with separate oscillator and battery backup system
 Two sixteen-channel, 12-bit, 2msps Analog to Digital Converters
 One two-channel, 12-bit, 1msps Digital to Analog Converter
 Four Analog Comparators with window compare function, and current sources
 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
 Special microcontroller features
 Power-on reset and programmable brown-out detection
 Internal and external clock options with PLL and prescaler
 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)
 I/O and packages
 47 programmable I/O pins
 64-lead TQFP
 64-pad QFN
 Operating voltage
 1.6 – 3.6V
 Operating frequency
 0 – 12MHz from 1.6V
 0 – 32MHz from 2.7V
8362F–AVR–02/2013