ATXMEGA256A3-AU 8/16-bit microcontroller 256KB 50I/O 32MHz 16KB AVR TQFP-64

ATxmega256A3

Features - High-performance low-power 8/16-bit Atmel AVR microcontroller - Non-volatile program and data memory

- 128-KB in-system self-programmable (ISP) Flash

- 8-KB boot code section with independent lock bits

- 4 KB EEPROM

- 16-KB SRAM, internal - Peripheral functions

- Four-channel DMA controller with support for external access

- Eight-channel event system

- Seven 16-bit timer/counters

- Seven USARTs

- AES and DES cryptographic engine

- 2x two-wire interfaces with dual address (I2C and SMBus compatible)

- Three serial peripheral interfaces (SPI)

- 16-bit real-time counter with separate oscillator

- Two eight-channel, 12-bit, 2-Msps analogue-to-digital converter

- One two-channel, 12-bit, 1-Msps digital-to-analogue converter

- Four analogue comparators with window comparison function

- External interrupts on all general purpose I/O pins

- Programmable watchdog timer with separate on-chip ultra-low-power oscillator - Special microcontroller characteristics

- Power-on-reset and programmable brown-out recognition

- Internal and external clock options with PLL

- Programmable multi-level interrupt controller

- Sleep modes: power-down standby, power-save standby, extended standby - JTAG (IEEE 1149.1 compliant) interface for testing, debugging and programming - PDI (program and debug interface) for programming, testing and debugging - I/O

- 50 programmable I/O lines - Operating voltage

- 1.6 - 3.6 V - Speed/performance

- 0 - 12 MHz@1.6 - 3.6 V

- 0 - 32 MHz@2.7 - 3.6 V Typical applications - Industrial controls- Air conditioning- Hand-held battery applications- Factory automation- ZigBee- Power Tools- Building control technology- Motor control unit- HVAC- Board controllers- Networks- Metering- White goods- Optical applications- Medical applications -