ATxmega256A3BU Datasheet | Atmel

Features 8/16-bit Atmel XMEGA A3BUMicrocontroller ATxmega256A3BU z High-performance, low-power Atmel®AVR®XMEGA® 8/16-bit Microcontroller z Nonvolatile program and data memories z 256KBytes of in-system self-programmable flash z 8KBytes boot section z 4KBytes EEPROM z 16KBytes internal SRAM z Peripheral features z Four-channel DMA controller z Eight-channel event system z Seven 16-bit timer/counters z Four timer/counters with four output pare or input capture channels z Three timer/counters with two output pare or input capture channels z High resolution extension on all timer/counters z Advanced waveform extension (AWe X) on one timer/counter z One USB device interface z USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device pliant z 32 Endpoints with full configuration flexibility z Six USARTs with Ir DA support for one USART z Two two-wire interfaces with dual address match (I2C and SMBus patible) z Two serial peripheral interfaces (SPIs) z AES and DES crypto engine z CRC-16 (CRC-CCITT) and CRC-32 (IEEE® 802.3) generator z 32-bit real time counter (RTC) with separate oscillator and battery backup system z Two sixteen-channel, 12-bit, 2msps Analog to Digital Converters z One two-channel, 12-bit, 1msps Digital to Analog Converter z Four Analog parators with window pare function, and current sources z External interrupts on all general purpose I/O pins z Programmable watchdog timer with separate on-chip ultra low power oscillator z QTouch® library support z Capacitive touch buttons, sliders and wheels z Special microcontroller features z Power-on reset and programmable brown-out detection z Internal and external clock options with PLL and prescaler z Programmable multilevel interrupt controller z Five sleep modes z Programming and debug interfaces z JTAG (IEEE 1149.1 pliant) interface, including boundary scan z PDI (Program and Debug Interface) z I/O and packages z 47 programmable I/O pins z 64-lead TQFP z 64-pad QFN z Operating voltage z 1.6 - 3.6V z Operating...