ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 437

• 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

8077H–AVR–12/09
10 Battery Backup System ....................................................................... 111
11 WDT – Watchdog Timer ....................................................................... 117
12 Interrupts and Programmable Multi-level Interrupt Controller ........ 123
13 I/O Ports ................................................................................................ 129
9.1
9.2
9.3
9.4
9.5
9.6
10.1
10.2
10.3
10.4
10.5
10.6
10.7
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
13.1
Features ........................................................................................................102
Overview ........................................................................................................102
Reset Sequence ............................................................................................104
Reset Sources ...............................................................................................104
Register Description ......................................................................................109
Register Summary .........................................................................................110
Features ........................................................................................................111
Overview ........................................................................................................111
Battery Backup Module .................................................................................112
Main Power Loss ...........................................................................................113
Main Reset and Start-up Sequence ..............................................................113
Register Description ......................................................................................114
Register Summary .........................................................................................116
Features ........................................................................................................117
Overview ........................................................................................................117
Normal Mode Operation ................................................................................117
Window Mode Operation ...............................................................................118
Watchdog Timer clock ...................................................................................118
Configuration Protection and Lock ................................................................118
Registers Description ....................................................................................119
Register Summary .........................................................................................122
Features ........................................................................................................123
Overview ........................................................................................................123
Operation .......................................................................................................123
Interrupts .......................................................................................................124
Interrupt level .................................................................................................125
Interrupt priority .............................................................................................125
Moving Interrupts Between Application and Boot Section .............................127
Register Description ......................................................................................127
Register Summary .........................................................................................128
Features ........................................................................................................129
XMEGA A
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