ATXMEGA256A3_10 Datasheet, PDF (3/110 Pages) ATMEL Corporation – 8/16-bit AVR XMEGA A3 Microcontroller

2. Pinout/Block Diagram
Figure 2-1. Block diagram and pinout.
INDEX CORNER
XMEGA A3
PA3 1
PA4 2
PA5 3
PA6 4
PA7 5
PB0 6
PB1 7
PB2 8
PB3 9
PB4 10
PB5 11
PB6 12
PB7 13
GND 14
VCC 15
PC0 16
ADC A
AC A0
AC A1
ADC B
DAC B
AC B0
AC B1
Port R
DATA BU S
OSC/CLK
Control
BOD
VREF
POR
Power
Control
Reset
Control
TEMP
CPU
DMA
RTC
OCD
FLASH
RAM
E²PROM
Watchdog
Interrupt Controller
Event System ctrl
DATA BU S
EVENT ROUTING NETWORK
Port C
Port D
Port E
Port F
48 PF2
47 PF1
46 PF0
45 VCC
44 GND
43 PE7
42 PE6
41 PE5
40 PE4
39 PE3
38 PE2
37 PE1
36 PE0
35 VCC
34 GND
33 PD7
Notes: 1. For full details on pinout and alternate pin functions refer to ”Pinout and Pin Functions” on page 49.
2. The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good
mechanical stability.
3
8068R–AVR–08/10