規格
| 屬性 | 價值 |
| Package / Case | Bulk |
| Series | AVR® ATmega |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The ATMEGA328P-AN is a microcontroller from Microchip Technology, commonly used in embedded systems and popular for its incorporation in Arduino boards, particularly the Arduino Uno. This 8-bit AVR RISC-based microcontroller features a 32 KB flash memory for code storage, 2 KB of SRAM, and 1 KB of EEPROM for data retention. It operates at a clock speed of up to 20 MHz and requires a supply voltage between 1.8V and 5.5V.
The ATMEGA328P-AN includes 23 general-purpose I/O pins, integrated peripherals like timers, counters, and ADCs (Analog to Digital Converters), and supports various communication interfaces, including USART, SPI, and I2C. Its power-saving sleep modes and watchdog timer make it suitable for low-power applications. With a user-friendly architecture and extensive community support, the ATMEGA328P-AN is ideal for beginners and professionals developing projects in home automation, robotics, and IoT devices.
The ATMEGA328P-AN includes 23 general-purpose I/O pins, integrated peripherals like timers, counters, and ADCs (Analog to Digital Converters), and supports various communication interfaces, including USART, SPI, and I2C. Its power-saving sleep modes and watchdog timer make it suitable for low-power applications. With a user-friendly architecture and extensive community support, the ATMEGA328P-AN is ideal for beginners and professionals developing projects in home automation, robotics, and IoT devices.
Equivalent
The ATMEGA328P-AN is a popular microcontroller from Microchip Technology, commonly used in Arduino boards. Equivalent products include:
1. ATMEGA328P-PU: Same microcontroller in a different package.
2. ATMEGA328PB: Offers additional features and peripherals.
3. ATMEGA168: Similar but with less memory.
4. ATMEGA32U4: Offers USB capabilities.
5. PIC16F1788: A Microchip alternative with similar specs.
6. STM32F030: An ARM Cortex-M0 alternative from STMicroelectronics.
These alternatives vary in features and may require modifications for compatibility.
1. ATMEGA328P-PU: Same microcontroller in a different package.
2. ATMEGA328PB: Offers additional features and peripherals.
3. ATMEGA168: Similar but with less memory.
4. ATMEGA32U4: Offers USB capabilities.
5. PIC16F1788: A Microchip alternative with similar specs.
6. STM32F030: An ARM Cortex-M0 alternative from STMicroelectronics.
These alternatives vary in features and may require modifications for compatibility.
Features
The ATMEGA328P-AN is a microcontroller from Microchip Technology's AVR family, notable for its balance of performance and power efficiency. Key features include:
1. Architecture: 8-bit AVR RISC architecture.
2. Clock Speed: Up to 20 MHz.
3. Flash Memory: 32 KB In-System Programmable Flash.
4. SRAM: 2 KB.
5. EEPROM: 1 KB.
6. I/O Pins: 23 general-purpose I/O lines.
7. Timers: Three Timer/Counters with PWM, including two 8-bit and one 16-bit.
8. Interfaces: Supports USART, SPI, and I2C communication protocols.
9. Analog Features: 6-channel 10-bit ADC; Analog Comparator.
10. Operating Voltage: 1.8V to 5.5V.
11. Power Consumption: Ultra-low power consumption with multiple power-saving modes.
12. Package: Available in multiple package types, including TQFP and PDIP.
13. Additional Features: Watchdog Timer, On-chip Debugging, External and Internal Interrupts.
This microcontroller is widely used in hobbyist projects, educational kits, and small-scale applications due to its versatility and ease of use.
1. Architecture: 8-bit AVR RISC architecture.
2. Clock Speed: Up to 20 MHz.
3. Flash Memory: 32 KB In-System Programmable Flash.
4. SRAM: 2 KB.
5. EEPROM: 1 KB.
6. I/O Pins: 23 general-purpose I/O lines.
7. Timers: Three Timer/Counters with PWM, including two 8-bit and one 16-bit.
8. Interfaces: Supports USART, SPI, and I2C communication protocols.
9. Analog Features: 6-channel 10-bit ADC; Analog Comparator.
10. Operating Voltage: 1.8V to 5.5V.
11. Power Consumption: Ultra-low power consumption with multiple power-saving modes.
12. Package: Available in multiple package types, including TQFP and PDIP.
13. Additional Features: Watchdog Timer, On-chip Debugging, External and Internal Interrupts.
This microcontroller is widely used in hobbyist projects, educational kits, and small-scale applications due to its versatility and ease of use.
Pinout
The ATmega328P-PU is a microcontroller from Atmel's (now part of Microchip Technology) AVR family. It features a 28-pin Dual In-line Package (DIP) configuration. Here is a brief overview of its pin functions:
1. Power Supply Pins:
- VCC: Digital supply voltage.
- GND: Ground.
- AVCC: Supply voltage for the analog part.
- AREF: Analog reference pin for analog inputs.
2. Port B (PB0-PB7):
- General Digital I/O pins.
- Supports PWM, SPI, and Timer/Counter functions.
3. Port C (PC0-PC6):
- General Digital I/O pins.
- PC6 is also the RESET pin.
- Supports ADC and I²C (TWI) functions.
4. Port D (PD0-PD7):
- General Digital I/O pins.
- Supports UART, External Interrupts, etc.
5. Special Function Pins:
- RXD (PD0) and TXD (PD1) for serial communication.
- SCL (PC5) and SDA (PC4) for I²C communication.
- MOSI (PB3), MISO (PB4), and SCK (PB5) for SPI communication.
- PWM outputs on various pins.
This versatile pin configuration makes the ATmega328P suitable for a wide range of applications.
1. Power Supply Pins:
- VCC: Digital supply voltage.
- GND: Ground.
- AVCC: Supply voltage for the analog part.
- AREF: Analog reference pin for analog inputs.
2. Port B (PB0-PB7):
- General Digital I/O pins.
- Supports PWM, SPI, and Timer/Counter functions.
3. Port C (PC0-PC6):
- General Digital I/O pins.
- PC6 is also the RESET pin.
- Supports ADC and I²C (TWI) functions.
4. Port D (PD0-PD7):
- General Digital I/O pins.
- Supports UART, External Interrupts, etc.
5. Special Function Pins:
- RXD (PD0) and TXD (PD1) for serial communication.
- SCL (PC5) and SDA (PC4) for I²C communication.
- MOSI (PB3), MISO (PB4), and SCK (PB5) for SPI communication.
- PWM outputs on various pins.
This versatile pin configuration makes the ATmega328P suitable for a wide range of applications.
Manufacturer
The ATMEGA328P-AN is manufactured by Microchip Technology Inc. Microchip is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions. The company designs and produces a wide range of semiconductor products and is known for its microcontroller and integrated circuit portfolio, which supports the development of various electronic applications across different industries. Their products are used in a broad array of embedded control applications, from automotive and industrial to consumer electronics and home appliances.
Application
The ATMEGA328P-AN is widely used in various applications due to its balance of performance and low power consumption. Common applications include:
1. Embedded Systems: Utilized in home automation, industrial controls, and consumer electronics for system control and monitoring.
2. Arduino Projects: Powers Arduino Uno boards, popular for prototyping and educational projects.
3. IoT Devices: Serves as a core component in Internet of Things applications for data processing and communication.
4. Wearable Technology: Used in fitness trackers and smartwatches due to its compact size and efficiency.
5. Robotics: Implements control mechanisms in robots and drones.
6. Automotive: Applied in vehicle control systems for functions like lighting and infotainment.
1. Embedded Systems: Utilized in home automation, industrial controls, and consumer electronics for system control and monitoring.
2. Arduino Projects: Powers Arduino Uno boards, popular for prototyping and educational projects.
3. IoT Devices: Serves as a core component in Internet of Things applications for data processing and communication.
4. Wearable Technology: Used in fitness trackers and smartwatches due to its compact size and efficiency.
5. Robotics: Implements control mechanisms in robots and drones.
6. Automotive: Applied in vehicle control systems for functions like lighting and infotainment.
Package
The ATMEGA328P-AN is a microcontroller from Microchip Technology, typically available in a TQFP (Thin Quad Flat Package) with 32 pins.
