Atmel AVR XMEGA 8/16-bit High Performance Low Power Flash Microcontrollers Manuale Utente Scaricare il pdf (Pagina 3)

8362E–AVR–01/12

XMEGA A3BU

2. Pinout/Block Diagram

Figure 2-1. Block diagram and pinout.

Notes: 1. For full details on pinout and pin functions refer to ”Pinout and Pin Functions” on page 59.

2. The large center pad underneath the QFN/MLF package should be soldered to ground on the board to ensure good

mechanical stability.

VCC

GND

VCC

AVCC

GND

PB0

PB1

PB3

PB2

PB7

PB5

PB4

PB6

PA7

PA6

PA0

PA1

PA2

PA3

PA4

PA5

RESET/PDI

PDI

PR0

PR1

VDD

GND

PC0

PC1

PC2

PC3

PC4

PC5

PC6

PC7

PD0

PD1

PD2

PD3

PD4

PD5

PD6

PD7

VCC

GND

PE0

PE1

PE2

PE3

PE4

PE5

TOSC2

TOSC1

PF0

PF1

PF2

PF3

PF4

VBAT

PF6

PF7

VDD

GND

Digital function

Analog function / Oscillators

Programming, debug, test

External clock / Crystal pins

General Purpose I /O

Ground

Power

Supervision

Port A

EVENT ROUTING NETWORK

DMA

Controller

BUS

matrix

SRAMFLASH

ADC

AC0:1

OCD

Port EPort D

Prog/Debug

Interface

EEPROM

Port C

TC0:1

Event System

Controller

Watchdog

Timer

Internal

oscillators

OSC/CLK

Control

Real Time

Counter

Interrupt

Controller

DATA BUS

Port R

USART0:1

TWI

SPI

TC0:1

USART0:1

SPI

TC0:1

USART0

TWI

Port B

ADC

DAC

AC0:1

AREF

JTAG

AREF

Sleep

Controller

Reset

Controller

Internal

references

IRCOM

USB

Port F

TC0:1

USART0

CPU

XOSC

Crypto /

CRC

Watchdog

oscillator

TOSC

Battery

Backup

1 2 3 4 5 6 7 8 ... 17 18

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Atmel AVR XMEGA 8/16-bit High Performance Low Power Flash Microcontrollers Manuale Utente Pagina 3

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