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ATMEGA329 View Datasheet(PDF) - Atmel Corporation

Part NameDescriptionManufacturer
ATMEGA329 8-bit Microcontroller with In-System Programmable Flash Atmel
Atmel Corporation Atmel
ATMEGA329 Datasheet PDF : 392 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
3.1 Block Diagram
Figure 3-1. Block Diagram
GND
VCC
AVCC
AGND
AREF
PF0 - PF7
PA0 - PA7
PC0 - PC7
PORTF DRIVERS
DATA REGISTER
PORTF
DATA DIR.
REG. PORTF
PORTA DRIVERS
PORTC DRIVERS
DATA REGISTER
PORTA
DATA DIR.
REG. PORTA
DATA REGISTER
PORTC
8-BIT DATA BUS
DATA DIR.
REG. PORTC
ADC
JTAG TAP
PROGRAM
COUNTER
STACK
POINTER
ON-CHIP DEBUG
BOUNDARY-
SCAN
PROGRAMMING
LOGIC
PROGRAM
FLASH
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
CONTROL
LINES
SRAM
GENERAL
PURPOSE
REGISTERS
X
Y
Z
ALU
AVR CPU
STATUS
REGISTER
USART
UNIVERSAL
SERIAL INTERFACE
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
MCU CONTROL
REGISTER
TIMER/
COUNTERS
INTERRUPT
UNIT
EEPROM
CALIB. OSC
OSCILLATOR
TIMING AND
CONTROL
LCD
CONTROLLER/
DRIVER
SPI
DATA REGISTER
PORTE
DATA DIR.
REG. PORTE
DATA REGISTER
PORTB
DATA DIR.
REG. PORTB
DATA REGISTER
PORTD
DATA DIR.
REG. PORTD
DATA REG. DATA DIR.
PORTG REG. PORTG
PORTE DRIVERS
PORTB DRIVERS
PORTD DRIVERS
PORTG DRIVERS
PE0 - PE7
PB0 - PB7
PD0 - PD7
PG0 - PG4
4 ATmega329/3290/649/6490
2552J–AVR–08/07
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