ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 4

• Manufacturer Part Number: ATXMEGA256A3B-MH
• Description: MCU AVR 256KB FLASH A3B 64-QFN
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-MH

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 49
• 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-MLF®, 64-QFN
• Processor Series: ATXMEGA256x
• Core: AVR8
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 1.6 V to 3.6 V
• 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
• On-chip Adc: 12 bit, 8 Channel
• On-chip Dac: 12 bit, 2 Channel
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATXMEGA256A3B-MU; ATXMEGA256A3B-MU

2.1
Figure 2-1.
8077H–AVR–12/09
PB[0..7]/
PA[0..7]
JTAG
Block Diagram
XMEGA A Block Diagram
PORT A (8)
PORT B (8)
Tempref
VCC/10
Int. Ref.
AREFA
AREFB
IRCOM
DACA
ADCA
ADCB
DACB
ACA
ACB
PC[0..7]
XTAL1
XTAL2
PR[0..1]
EVENT ROUTING NETWORK
Event System
DES
AES
Controller
Controller
Controller
PQ[0..7]
DMA
BUS
TOSC1
TOSC2
PD[0..7]
Flash
NVM Controller
PP[0..7] PN[0..7]
DATA BUS
EVENT ROUTING NETWORK
CPU
SRAM
DATA BUS
PE[0..7]
Generation
Oscillator
Circuits/
Clock
Prog/Debug
Controller
Controller
Controller
Oscillator
EEPROM
Interrupt
Control
Sleep
OCD
Real Time
Counter
PF[0..7]
JTAG
Watchdog
Watchdog
PDI
Oscillator
Supervision
POR/BOD &
Timer
PORT M (8)
PORT G (8)
PORT L (8)
PORT K (8)
PORT H (8)
PORT J (8)
RESET
Power
EBI
PORT B
XMEGA A
RESET/
PDI_CLK
PDI_D
PL[0..7]
PL[0..7]
PK[0..7]
PJ[0..7]
PH[0..7]
PG[0..7]
GND
VCC
4