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ATMEGA328P-AU

Name: ATMEGA328P-AU
Rating: 4.7 (12 reviews)

IC MCU 8BIT 32KB FLASH 32TQFP

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Mfr。パート #ATMEGA328P-AU
パッケージ TQFP-32
データシート ATMEGA328P-AU DataSheet
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仕様

Package	Bulk
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 8x10b
OscillatorType	Internal
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	32-TQFP

概要

Description

The ATmega328P-AU is a microcontroller from Microchip Technology, widely used in embedded systems and popularized by its role in Arduino boards. It features an 8-bit AVR architecture, operating at a maximum clock speed of 20 MHz. The chip includes 32 KB of flash memory for program storage, 2 KB of SRAM, and 1 KB of EEPROM for non-volatile data.
Key features include 23 programmable I/O pins, six analog input channels, and support for various communication protocols, such as UART, SPI, and I2C. The ATmega328P-AU also has a built-in 10-bit ADC (Analog-to-Digital Converter) and multiple timers, making it versatile for various applications, from robotics to sensor interfacing.
In its package form (TQFP-32), it offers a compact footprint ideal for space-constrained designs. The ATmega328P is supported by a robust ecosystem, including extensive libraries, development tools, and community resources, making it an excellent choice for both beginners and experienced developers in electronics.

Features

The ATmega328P-AU is a microcontroller from Microchip's AVR family, widely used in various applications, including Arduino platforms. Key features include:
1. Architecture: 8-bit AVR RISC architecture with 32 general-purpose registers.
2. Clock Speed: Operates at up to 20 MHz.
3. Memory:
- 32 KB Flash memory for program storage
- 2 KB SRAM for data
- 1 KB EEPROM for non-volatile storage
4. I/O Ports: 23 programmable I/O lines.
5. ADC: 10-bit Analog-to-Digital Converter with 6 channels.
6. Timers: Three timer/counter systems (2 with PWM).
7. Communication Interfaces:
- USART for serial communication
- SPI and I2C (TWI) interfaces.
8. Operating Voltage: 1.8V to 5.5V.
9. Low Power Modes: Various sleep modes for energy efficiency.
10. Package: Available in a 32-pin TQFP and 28-pin DIP packages.
These features make the ATmega328P-AU versatile for embedded system designs.

Package

The ATMEGA328P-AU is packaged in a 32-pin TQFP (Thin Quad Flat Package) with a lead pitch of 0.8 mm. This surface-mount package is designed for efficient use of space on circuit boards while providing enhanced performance.

Pinout

The ATmega328P-AU is a microcontroller from Atmel (now part of Microchip Technology) and features a 32-pin QFN (Quad Flat No-lead) package.
Pin Count: 32 pins
Functions:
1. Digital I/O: It has 23 general-purpose I/O pins (PORTB, PORTC, PORTD).
2. Analog Inputs: 6 analog input channels (ADC0 to ADC5) for converting analog signals to digital.
3. Timers: 3 timer/counter modules (2 8-bit and 1 16-bit) for timing applications.
4. Serial Communication: Supports UART, SPI, and I²C interfaces for communication with other devices.
5. Reset Pin: An external reset pin to reset the microcontroller.
6. Power Supply Pins: VCC for power and GND for ground connections.
The ATmega328P-AU is widely used in applications such as Arduino boards, enabling ease of development for various embedded systems.

Manufacturer

The ATMEGA328P-AU is manufactured by Microchip Technology Inc., an American company that specializes in microcontroller and analog semiconductor products. Founded in 1989, Microchip is known for its development of low-cost, high-performance microcontrollers and development tools, particularly in the embedded systems market. The company offers a wide range of solutions for various applications, including automotive, industrial, consumer, and communications. The ATMEGA328P-AU is notably used in popular platforms like Arduino, making it a well-recognized component among hobbyists and professionals alike. Microchip operates globally, providing support and resources for developers through extensive documentation and a robust community.

Application

The ATmega328P-AU is commonly used in various applications, including:
1. Embedded Systems: Ideal for microcontroller projects and prototypes.
2. Arduino Projects: Serves as the core of Arduino Uno and similar boards.
3. Home Automation: Controls devices like lights, fans, and sensors.
4. Robotics: Manages motor controls and sensor integration.
5. Wearable Devices: Supports low-power wearable applications.
6. IoT Devices: Enables connectivity in Internet of Things projects.
7. Consumer Electronics: Powers small gadgets and appliances.

Equivalent

Equivalent products to the ATmega328P-AU include:
1. ATmega168P - Similar architecture with 16KB flash memory.
2. ATmega32U4 - Includes USB functionality and has 32KB flash memory.
3. PIC16F877A - Microchip's alternative with comparable features.
4. STM32F103C8 - ARM Cortex-M3 based, more advanced but offers similar applications.
These alternatives vary in features like memory size and peripherals, so choose based on specific project requirements.