ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 434

MCU AVR 256KB FLASH A3B 64-QFN

ATXMEGA256A3B-MH

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATXMEGA256A3B-MH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Table of Contents
8077H–AVR–12/09
1
2
3
4
About the Manual ..................................................................................... 2
Overview ................................................................................................... 3
Memories ................................................................................................ 18
AVR CPU .................................................................................................. 5
1.1
1.2
1.3
2.1
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
Reading the Manual ..........................................................................................2
Resources .........................................................................................................2
Recommended Reading ....................................................................................2
Block Diagram ...................................................................................................4
Features ............................................................................................................5
Overview ............................................................................................................5
Architectural Overview .......................................................................................5
ALU - Arithmetic Logic Unit ...............................................................................7
Program Flow ....................................................................................................7
Instruction Execution Timing .............................................................................8
Status Register ..................................................................................................9
Stack and Stack Pointer ....................................................................................9
Register File ......................................................................................................9
RAMP and Extended Indirect Registers ..........................................................11
Accessing 16-bits Registers ............................................................................12
Configuration Change Protection ....................................................................12
Fuse Lock ........................................................................................................13
Register Description ........................................................................................13
Register Summary ...........................................................................................17
Features ..........................................................................................................18
Overview ..........................................................................................................18
Flash Program Memory ...................................................................................19
Fuses and Lockbits ..........................................................................................20
Data Memory ...................................................................................................22
Internal SRAM .................................................................................................22
EEPROM .........................................................................................................23
I/O Memory ......................................................................................................23
External Memory .............................................................................................23
Data Memory and Bus Arbitration ...................................................................23
XMEGA A
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