ATXMEGA256A3-AU Atmel, ATXMEGA256A3-AU Datasheet - Page 5

• Manufacturer Part Number: ATXMEGA256A3-AU
• Description: MCU AVR 256K FLASH 1.8V 64-TQFP
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3-AU

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• 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): 1.6 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Package: 64TQFP
• Device Core: AVR
• Family Name: XMEGA
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 1.8|2.5|3.3 V
• Data Bus Width: 8|16 Bit
• Number Of Programmable I/os: 50
• Interface Type: SPI/TWI/USART
• On-chip Adc: 2(8-chx12-bit)
• On-chip Dac: 2-chx12-bit
• Number Of Timers: 7
• Processor Series: ATXMEGA256x
• Core: AVR8
• Data Ram Size: 16 KB
• Maximum Clock Frequency: 32 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.1
Figure 3-1.
8068T–AVR–12/10
PB[0..7]/
PA[0..7]
JTAG
Block Diagram
XMEGA A3 Block Diagram
PORT A (8)
PORT B (8)
Tempref
Int. Ref.
AREFA
VCC/10
AREFB
IRCOM
ADCA
ADCB
DACB
ACA
ACB
PORT C (8)
PC[0..7]
Event System
DES
AES
Controller
Controller
Controller
DMA
BUS
XTAL1
XTAL2
PR[0..1]
Flash
NVM Controller
PORT D (8)
DATA BUS
EVENT ROUTING NETWORK
PD[0..7]
CPU
SRAM
DATA BUS
Generation
Oscillator
Circuits/
Clock
Prog/Debug
PORT E (8)
Oscillator
Controller
Controller
Controller
EEPROM
Interrupt
Control
PE[0..7]
Sleep
OCD
Real Time
TOSC1
TOSC2
Counter
To Clock
Generator
JTAG
Watchdog
Watchdog
PDI
Oscillator
Supervision
POR/BOD &
Timer
RESET
Power
USARTF0
TCF0
PORT B
XMEGA A3
PF[0..7]
RESET/
PDI_CLK
VCC
GND
PDI_DATA
5