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ATXMEGA256A3U-MH IC MCU 8/16BIT 256KB FLASH 64QFN

Short Description:

Mfr.Part: ATXMEGA256A3U-MH

Manufacturer: Microchip Technology
Package: 64-VFQFN Exposed Pad

Description: AVR series Microcontroller IC 8/16-Bit 32MHz 256KB (128K x 16) FLASH 64-QFN (9×9)

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Description

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 AVR XMEGA device achieves throughputs CPU 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 AVR XMEGA A3U devices provide the following features: in-system programmable flash with read-whilewrite capabilities; internal EEPROM and SRAM; four-channel DMA controller, eight-channel event system and programmable multilevel interrupt controller, 50 general purpose I/O lines, 16-bit real-time counter (RTC); seven flexible, 16-bit timer/counters with compare and PWM channels; seven USARTs; two two-wire serial interfaces (TWIs); one full speed USB 2.0 interface; three serial peripheral interfaces (SPIs); AES and DES cryptographic engine; two 16-channel, 12-bit ADCs with programmable gain; one 2-channel 12-bit DAC; 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 boundary scan, on-chip debug and programming.

 

Specifications
 Attribute Value
Category Integrated Circuits (ICs)
Embedded - Microcontrollers
Mfr Microchip Technology
Series AVR® XMEGA® A3U
Package Tray
Part Status Active
Core Processor AVR
Core Size 8/16-Bit
Speed 32MHz
Connectivity I²C, IrDA, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 50
Program Memory Size 256KB (128K x 16)
Program Memory Type FLASH
EEPROM Size 4K x 8
RAM Size 16K x 8
Voltage - Supply (Vcc/Vdd) 1.6V ~ 3.6V
Data Converters A/D 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 64-VFQFN Exposed Pad
Supplier Device Package 64-QFN (9x9)
Base Product Number ATXMEGA256

 

ATMEGA A3U 2

 

ATMEGA A3U 1


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