ATmega328P datasheet(5/448 Pages) ATMEL

tên linh kiện	ATmega328P

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

PDF	448 Pages

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nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

Overview

The ATmega48PA/88PA/168PA/328P 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

ATmega48PA/88PA/168PA/328P achieves throughputs approaching 1 MIPS per MHz allowing

the system designer to optimize power consumption versus processing speed.

2.1

Block Diagram

Figure 2-1.

Block Diagram

The AVR core combines a rich instruction set with 32 general purpose working registers. All the

32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent

registers to be accessed in one single instruction executed in one clock cycle. The resulting

PORT C (7)

PORT B (8)

PORT D (8)

USART 0

8bit T/C 2

16bit T/C 1

8bit T/C 0

A/D Conv.

Internal

Bandgap

Analog

Comp.

SPI

TWI

SRAM

Flash

EEPROM

Watchdog

Oscillator

Watchdog

Timer

Oscillator

Circuits /

Clock

Generation

Power

Supervision

POR / BOD &

RESET

PROGRAM

LOGIC

debugWIRE

GND

AREF

AVCC

ADC[6..7]

PC[0..6]

PB[0..7]

PD[0..7]

RESET

XTAL[1..2]

CPU

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