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ATMEGA328-PU

Name: ATMEGA328-PU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 32KB FLASH 28DIP

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Mfr。パート #ATMEGA328-PU
パッケージ SPDIP-28
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仕様

Package	Tube
Series	AVR® ATmega
ProductStatus	Active
CoreProcessor	AVR
CoreSize	8-Bit
Speed	20MHz
Connectivity	I²C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O	23
ProgramMemorySize	32KB (16K x 16)
ProgramMemoryType	FLASH
EEPROMSize	1K x 8
RAMSize	2K x 8
Voltage-Supply(Vcc/Vdd)	1.8V ~ 5.5V
DataConverters	A/D 6x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Through Hole
Package/Case	28-DIP (0.300, 7.62mm)

概要

Description

The ATmega328-PU is a popular 8-bit microcontroller from Microchip Technology, widely used in embedded systems and DIY electronics, particularly in Arduino boards like the Arduino Uno. It features 32 KB of flash memory for program storage, 2 KB of SRAM, and 1 KB of EEPROM for non-volatile data storage. The microcontroller operates at a clock speed of up to 20 MHz and supports a variety of I/O interfaces, including digital and analog pins, serial communication (UART, SPI, I2C), and timers.
With 23 programmable I/O lines, the ATmega328-PU can handle various tasks in control and automation applications. Its low power consumption and built-in sleep modes make it suitable for battery-operated devices. The device is programmed using the Arduino IDE, which provides an accessible platform for both beginners and experienced developers. The ATmega328-PU’s versatility and ease of use have made it a staple in the maker community and educational settings.

Features

The ATmega328-PU is an 8-bit microcontroller from Atmel (now part of Microchip Technology) featuring the following key characteristics:
1. Architecture: AVR 8-bit RISC architecture.
2. Flash Memory: 32 KB of in-system programmable flash memory.
3. RAM: 2 KB of SRAM.
4. EEPROM: 1 KB of EEPROM.
5. Clock Speed: Operates at up to 20 MHz.
6. I/O Ports: 23 programmable I/O lines.
7. Timers: Three timers (two 8-bit and one 16-bit).
8. ADC: 10-bit Analog-to-Digital Converter with 6 channels.
9. Communication Interfaces: SPI, I2C, and UART for serial communication.
10. Interrupts: 2 external interrupts and multiple internal sources.
11. Operating Voltage: 1.8V to 5.5V.
12. Power Saving Modes: Multiple sleep modes for energy efficiency.
The ATmega328-PU is widely used in applications such as robotics, home automation, and Arduino projects due to its simplicity and versatility.

Package

The ATmega328-PU is typically packaged in a DIP (Dual In-line Package) format, specifically a 28-pin DIP. This package type allows for easy insertion into breadboards and sockets, making it popular for prototyping and educational purposes.

Pinout

The ATmega328-PU is an 8-bit microcontroller from the Atmel (now Microchip Technology) AVR family. It features a 28-pin Dual In-Line Package (DIP). Below are the key pin functions:
1. Power Supply:
- VCC: Power supply (5V)
- GND: Ground
2. Digital I/O:
- Pins 0-7 (Digital Pins 0-7): General-purpose I/O pins, also supports PWM on specific pins.
3. Analog Inputs:
- Pins A0-A5 (Analog Pins): Used for analog-to-digital conversion (ADC).
4. Communication:
- Pin 0 (RX) and Pin 1 (TX): Serial communication (UART).
- Pins 2 and 3: External Interrupts (INT0 and INT1).
5. Timer/Counters:
- Pins for Timer/Counter outputs (OC0A, OC0B, OC1A, OC1B).
6. Reset:
- RESET: Active low reset pin.
7. Crystal Oscillator:
- XTAL1 and XTAL2: Connects to an external clock source.
The ATmega328-PU is widely used in applications like Arduino Uno, making it popular for hobbyist and educational projects.

Manufacturer

The ATmega328-PU is manufactured by Microchip Technology Inc., a leading semiconductor company. Founded in 1989 and headquartered in Chandler, Arizona, Microchip specializes in microcontrollers, memory products, and integrated circuits. The company is known for its innovative solutions in embedded control applications and serves a diverse range of industries, including automotive, industrial, consumer electronics, and communications. Microchip is recognized for its reliable and cost-effective products, particularly in the embedded systems market. The ATmega328-PU, a popular 8-bit microcontroller, is widely used in various applications, notably in Arduino platforms, due to its versatility and ease of use.

Application

The ATmega328-PU is widely used in various application areas, including:
1. Embedded Systems: Microcontroller for DIY projects and prototyping.
2. Consumer Electronics: Home automation devices and smart gadgets.
3. Wearable Technology: Fitness trackers and smartwatches.
4. Robotics: Control systems for robots and drones.
5. IoT Devices: Sensors and actuators in Internet of Things applications.
6. Educational Tools: Teaching electronics and programming in schools.
Its versatility and ease of use make it a popular choice across these domains.

Equivalent

Equivalent products to the ATmega328-PU include the ATmega328P, ATmega32U4, and ATmega168. Other alternatives are the Microchip PIC16F877A, STM32F030F4, and the NXP LPC810. These microcontrollers vary in features like memory size, peripherals, and power consumption, but can serve similar applications in embedded systems.