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ATMEGA323L-4AC Просмотр технического описания (PDF) - Atmel Corporation
Номер в каталоге
Компоненты Описание
производитель
ATMEGA323L-4AC
8-bit Microcontroller with 32K Bytes of In-System Programmable Flash
Atmel Corporation
ATMEGA323L-4AC Datasheet PDF : 247 Pages
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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
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