ATMEGA328P datasheet(7/294 Pages) ATMEL

No. de pieza	ATMEGA328P

Descripción Electrónicos	8-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash

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Fabricante Electrónico	ATMEL [ATMEL Corporation]

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ATmega328P [DATASHEET]

7810D–AVR–01/15

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 architecture is more code efficient while achieving throughputs up to ten times

faster than conventional CISC microcontrollers.

The Atmel® ATmega328P provides the following features: 32K bytes of in-system programmable flash with read-while-write

capabilities, 1K bytes EEPROM, 2K bytes SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three

flexible Timer/Counters with compare modes, internal and external interrupts, a serial programmable USART, a byte-

oriented 2-wire serial interface, an SPI serial port, a 6-channel 10-bit ADC (8 channels in TQFP and QFN/MLF packages), a

programmable watchdog timer with internal oscillator, and five software selectable power saving modes. The idle mode

stops the CPU while allowing the SRAM, Timer/Counters, USART, 2-wire serial interface, SPI port, and interrupt system to

continue functioning. The power-down mode saves the register contents but freezes the oscillator, disabling all other chip

functions until the next interrupt or hardware reset. In power-save mode, the asynchronous timer continues to run, allowing

the user to maintain a timer base while the rest of the device is sleeping. The ADC noise reduction mode stops the CPU and

all I/O modules except asynchronous timer and ADC, to minimize switching noise during ADC conversions. In standby

mode, the crystal/resonator oscillator is running while the rest of the device is sleeping. This allows very fast start-up

combined with low power consumption.

The device is manufactured using Atmel high density non-volatile memory technology. The on-chip ISP flash allows the

program memory to be reprogrammed in-system through an SPI serial interface, by a conventional non-volatile memory

programmer, or by an on-chip boot program running on the AVR core. The boot program can use any interface to download

the application program in the application flash memory. Software in the boot flash section will continue to run while the

application flash section is updated, providing true read-while-write operation. By combining an 8-bit RISC CPU with

in-system self-programmable flash on a monolithic chip, the Atmel ATmega328P is a powerful microcontroller that provides

a highly flexible and cost effective solution to many embedded control applications.

The ATmega328P AVR is supported with a full suite of program and system development tools including: C compilers,

macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits.

Número de pieza similar - ATMEGA328P

Fabricante Electrónico	No. de pieza	Datasheet	Descripción Electrónicos
ATMEL Corporation	ATMEGA328P	420Kb / 26P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash
	ATMEGA328P	406Kb / 24P	8-bit AVR Microcontrollers 06/2016
	ATmega328P	487Kb / 26P	8-bit Microcontroller with4/8/16/32K Bytes In-System Programmable Flash
	ATmega328P	5Mb / 345P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATmega328P	12Mb / 448P	8-bit Microcontroller with 4/8/16/32K Bytes In-System Programmable Flash

Fabricante Electrónico	No. de pieza	Datasheet	Descripción Electrónicos
ATMEL Corporation	ATMEGA32	4Mb / 317P	8-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA32	3Mb / 347P	8-bit AVR Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA325P	332Kb / 22P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA325P	3Mb / 336P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA329P	471Kb / 25P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA324PA	546Kb / 24P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA32A	427Kb / 18P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA325P	346Kb / 25P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA32	5Mb / 346P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash
	ATMEGA329P	5Mb / 385P	8-bit Microcontroller with 32K Bytes In-System Programmable Flash