ATXMEGA256A3B-AU Atmel, ATXMEGA256A3B-AU Datasheet - Page 50

• 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

30. Pinout and Pin Functions
30.1
30.1.1
30.1.2
30.1.3
30.1.4
30.1.5
8116I–AVR–09/10
Alternate Pin Function Description
Operation/Power Supply
Port Interrupt functions
Analog functions
Timer/Counter and AWEX functions
Communication functions
The pinout of XMEGA A3B is shown in
I/O functionality, each pin may have several functions. This will depend on which peripheral is
enabled and connected to the actual pin. Only one of the alternate pin functions can be used at
time.
The tables below shows the notation for all pin functions available and describes its function.
VCC
AVCC
VBAT
GND
SYNC
ASYNC
ACn
AC0OUT
ADCn
DACn
AREF
OCnx
OCnx
OCnxLS
OCnxHS
SCL
SDA
SCLIN
SCLOUT
Digital supply voltage
Battery Backup Module supply voltage
Ground
Port pin with full synchronous and limited asynchronous interrupt function
Analog to Digital Converter input pin n
Analog Reference input pin
Output Compare Channel x for Timer/Counter n
Output Compare Channel x Low Side for Timer/Counter n
Output Compare Channel x High Side for Timer/Counter n
Serial Data for TWI
Serial Clock In for TWI when external driver interface is enabled
Serial Clock Out for TWI when external driver interface is enabled
Analog supply voltage
Port pin with full synchronous and full asynchronous interrupt function
Analog Comparator input pin n
Analog Comparator 0 Output
Digital to Analog Converter output pin n
Inverted Output Compare Channel x for Timer/Counter n
Serial Clock for TWI
”Pinout/Block Diagram” on page
XMEGA A3B
3. In addition to general
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