ATXMEGA256A3B-AU Atmel, ATXMEGA256A3B-AU Datasheet - Page 67

• Manufacturer Part Number: ATXMEGA256A3B-AU
• Description: MCU AVR 256KB FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-AU

• 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-TQFP, 64-VQFP
• Controller Family/series: ATXMEGA
• No. Of I/o's: 49
• Eeprom Memory Size: 4KB
• Ram Memory Size: 16KB
• Cpu Speed: 32MHz
• Rohs Compliant: Yes
• Processor Series: XMEGA
• Core: AVR
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 2.5 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
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

34.4
Table 34-3.
Table 34-4.
Notes:
8116I–AVR–09/10
Symbol
Symbol
Flash and EEPROM Memory Characteristics
1. Programming is timed from the internal 2 MHz oscillator.
2. EEPROM is not erased if the EESAVE fuse is programmed.
Parameter
Flash
EEPROM
Parameter
Chip Erase
Flash
EEPROM
Endurance and Data Retention
Programming time
Write/Erase cycles
Data retention
Write/Erase cycles
Data retention
Flash, EEPROM
Page Erase
Page Write
Page Write Automatic Page Erase and Write
Page Erase
Page Write
Page Write Automatic Page Erase and Write
(2)
Condition
Condition
and SRAM Erase
25°C
85°C
25°C
55°C
25°C
85°C
25°C
55°C
10K
10K
80K
30K
Min
100
100
Min
25
25
Typ
Typ
40
12
12
6
6
6
6
XMEGA A3B
(1)
Max
Max
Units
Cycle
Cycle
Units
Year
Year
ms
67