ATXMEGA256A3U-MH Microchip 8bit MCU

ATXMEGA256A3U-MH Overview

AVR AVR® XMEGA® A3U Microcontroller IC 8/16-Bit 32MHz 256KB (128K x 16) FLASH 64-QFN (9x9)

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Features

High-performance, Low-power Atmel® AVR® XMEGA® 8/16-bit Microcontroller Non-volatile Program and Data Memories– 64K - 256KBytes of In-System Self-Programmable Flash– 4K - 8KBytes Boot Section– 2K - 4KBytes EEPROM– 4K - 16KBytes Internal SRAM Peripheral Features– Four-channel DMA Controller– Eight-channel Event System– Seven 16-bit Timer/CountersFour Timer/Counters with 4 Output Compare or Input Capture channelsThree Timer/Counters with 2 Output Compare or Input Capture channelsHigh Resolution Extensions on all Timer/CountersAdvanced Waveform Extension on one Timer/Counter– One USB device interfaceUSB 2.0 full speed (12Mbps) and low speed (1.5Mbps) device compliant32 Endpoints with full configuration flexibility– Seven USARTs with IrDA support for one USART– AES and DES Crypto Engine– CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) Generator– Two Two-wire Interfaces with dual address match (I2C and SMBus compatible)– Three Serial Peripheral Interfaces (SPIs)– 16-bit Real Time Counter with Separate Oscillator– Two Eight-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 source feature– External Interrupts on all General Purpose I/O pins– Programmable Watchdog Timer with Separate On-chip Ultra Low Power Oscillator– QTouch® library supportCapacitive touch buttons, sliders and wheelsUp to 64 sense channels Special Microcontroller Features– Power-on Reset and Programmable Brown-out Detection– Internal and External Clock Options with PLL– Programmable Multi-level Interrupt Controller– Five Sleep Modes– Programming and Debug InterfacesJTAG (IEEE 1149.1 Compliant) Interface, including Boundary ScanPDI (Program and Debug Interface) I/O and Packages– 50 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