ATXMEGA256A3-MU Atmel, ATXMEGA256A3-MU Datasheet - Page 3

• Manufacturer Part Number: ATXMEGA256A3-MU
• Description: 8-bit Microcontrollers - MCU 8/16 bit 1.6V-3.6V 256KB + 8KB
• Manufacturer: Atmel

Specifications of ATXMEGA256A3-MU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit/16 bit
• Maximum Clock Frequency: 32 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: QFN EP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 8
• Data Rom Size: 4 KB
• Interface Type: I2C, SPI, USART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 50
• Number Of Timers: 7
• Processor Series: ATXMega
• Program Memory Type: Flash
• Factory Pack Quantity: 260
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.6 V

2. Pinout/Block Diagram
Figure 2-1.
Notes:
8068T–AVR–12/10
INDEX CORNER
1. For full details on pinout and alternate pin functions refer to
2. The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good
mechanical stability.
Block diagram and pinout.
GND
VCC
PC0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA3
PA4
PA5
PA6
PA7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ADC A
ADC B
DAC B
AC A0
AC A1
AC B0
AC B1
Port C
Watchdog
OSC/CLK
Port R
Control
Control
Control
Power
Reset
EVENT ROUTING NETWORK
”Pinout and Pin Functions” on page
Port D
TEMP
BOD
Interrupt Controller
DATA BU S
DATA BU S
Event System ctrl
DMA
CPU
Port E
VREF
RTC
E
FLASH
2
RAM
PROM
POR
OCD
Port F
49.
XMEGA A3
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
PF2
PF1
PF0
VCC
GND
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
VCC
GND
PD7
3