ATMEGA323 Ver la hoja de datos (PDF) - Atmel Corporation

Número de pieza

componentes Descripción

Fabricante

ATMEGA323

8-bit Microcontroller with 32K Bytes of In-System Programmable Flash

Atmel Corporation 

Overview

Block Diagram

1457G–AVR–09/03

ATmega323(L)

The ATmega323 is a low-power CMOS 8-bit microcontroller based on the AVR

enhanced RISC architecture. By executing powerful instructions in a single clock cycle,

the ATmega323 achieves throughputs approaching 1 MIPS per MHz allowing the sys-

tem designer to optimize power consumption versus processing speed.

Figure 1. Block Diagram

PA0 - PA7

VCC

PC0 - PC7

GND

AVCC

AGND

AREF

PORTA DRIVERS

PORTC DRIVERS

DATA REGISTER

PORTA

DATA DIR.

REG. PORTA

DATA REGISTER

PORTC

8-BIT DATA BUS

DATA DIR.

REG. PORTC

ANALOG MUX

INTERNAL

REFERENCE

ADC

2-WIRE SERIAL

INTERFACE

INTERNAL

OSCILLATOR

JTAG

INTERFACE

OSCILLATOR

OSCILLATOR

PROGRAM

COUNTER

STACK

POINTER

WATCHDOG

TIMER

TIMING AND

CONTROL

XTAL1

XTAL2

RESET

PROGRAM

FLASH

SRAM

MCU CONTROL

REGISTER

INSTRUCTION

REGISTER

INSTRUCTION

DECODER

CONTROL

LINES

GENERAL

PURPOSE

REGISTERS

X

Y

Z

ALU

STATUS

REGISTER

TIMER/

COUNTERS

INTERRUPT

UNIT

EEPROM

INTERNAL

CALIBRATED

OSCILLATOR

PROGRAMMING

LOGIC

SPI

USART

DATA REGISTER

PORTB

DATA DIR.

REG. PORTB

PORTB DRIVERS

DATA REGISTER

PORTD

DATA DIR.

REG. PORTD

PORTD DRIVERS

PB0 - PB7

PD0 - PD7

3

Share Link: