ATXMEGA256A3B-AU Atmel, ATXMEGA256A3B-AU Datasheet - Page 52

• 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

30.2
Table 30-1.
Table 30-2.
Table 30-3.
8116I–AVR–09/10
PORT A
GND
AVCC
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PORT B
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PORT C
GND
VCC
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
Alternate Pin Functions
PIN #
PIN #
PIN #
14
15
16
17
18
19
20
21
22
23
60
61
62
63
64
10
11
12
13
1
2
3
4
5
6
7
8
9
Port A - Alternate functions
Port B - Alternate functions
Port C - Alternate functions
SYNC/ASYNC
SYNC/ASYNC
SYNC/ASYNC
INTERRUPT
INTERRUPT
INTERRUPT
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
The tables below show the primary/default function for each pin on a port in the first column, the
pin number in the second column, and then all alternate pin functions in the remaining columns.
The head row shows what peripheral that enable and use the alternate pin functions.
TCC0
OC0A
OC0B
OC0C
OC0D
ADCA
POS
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
ADCB
POS
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
AWEXC
OC0AHS
OC0BHS
OC0CHS
OC0DHS
OC0ALS
OC0BLS
OC0CLS
OC0DLS
ADCA
ADCB
NEG
ADC0
ADC1
ADC2
ADC3
NEG
ADC0
ADC1
ADC2
ADC3
TCC1
OC1A
OC1B
GAINPOS
GAINPOS
ADCB
ADC0
ADC1
ADC2
ADC3
ADC7
ADC4
ADC5
ADC6
ADCA
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
USARTC0
XCK0
RXD0
TXD0
GAINNEG
ADCB
ADC4
ADC5
ADC6
ADC7
GAINNEG
ADCA
ADC4
ADC5
ADC6
ADC7
USARTC1
XCK1
RXD1
TXD1
ACB
POS
AC0
AC1
AC2
AC3
AC4
AC5
AC6
ACA
POS
AC0
AC1
AC2
AC3
AC4
AC5
AC6
SPIC
MISO
MOSI
SCK
ACB
NEG
SS
AC0
AC1
AC3
AC5
AC7
ACA
NEG
AC0
AC1
AC3
AC5
AC7
SDA/SDA_IN
AC0OUT
SCL/SCL_IN
SDA_OUT
SCL_OUT
ACB
OUT
TWIC
XMEGA A3B
DACB
DAC0
DAC1
AC0OUT
ACA
OUT
CLOCKOUT
CLKOUT
REFB
AREF
EVENTOUT
REFA
AREF
EVOUT
JTAG
TMS
TDO
TCK
TDI
52