仕様
| 属性 | 値 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| 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-VFQFN Exposed Pad |
概要
Description
The ATmega328P-MUR is a high-performance, low-power 8-bit AVR microcontroller from Microchip, packaged in a compact QFN-32 (32-pin) form factor. It features 32KB Flash, 2KB SRAM, and 1KB EEPROM, making it ideal for embedded applications.
Key highlights:
- Clock Speed: Up to 20MHz (5V operation).
- Peripherals: 23 I/O pins, 6-channel 10-bit ADC, PWM, USART, SPI, and I²C.
- Low Power: Supports multiple sleep modes.
- Robust: Industrial temperature range (-40°C to +85°C).
Commonly used in Arduino Uno (as the DIP variant) and custom PCB designs, the MUR (Tape & Reel) version suits automated assembly. Its balance of performance, power efficiency, and connectivity makes it a popular choice for hobbyists and professionals alike.
Key highlights:
- Clock Speed: Up to 20MHz (5V operation).
- Peripherals: 23 I/O pins, 6-channel 10-bit ADC, PWM, USART, SPI, and I²C.
- Low Power: Supports multiple sleep modes.
- Robust: Industrial temperature range (-40°C to +85°C).
Commonly used in Arduino Uno (as the DIP variant) and custom PCB designs, the MUR (Tape & Reel) version suits automated assembly. Its balance of performance, power efficiency, and connectivity makes it a popular choice for hobbyists and professionals alike.
Equivalent
Equivalent products to the ATMEGA328P-MUR include:
- ATMEGA328P-AUR (same specs, different packaging).
- ATMEGA328PB-MUR (enhanced version with more peripherals).
- ATMEGA168PA-MUR (lower flash but pin-compatible).
- ATTINY828-MUR (smaller but similar architecture).
For drop-in replacements, ATMEGA328P-AUR is the closest match. For upgrades, consider ATMEGA328PB-MUR. Always verify pinouts and features for compatibility.
- ATMEGA328P-AUR (same specs, different packaging).
- ATMEGA328PB-MUR (enhanced version with more peripherals).
- ATMEGA168PA-MUR (lower flash but pin-compatible).
- ATTINY828-MUR (smaller but similar architecture).
For drop-in replacements, ATMEGA328P-AUR is the closest match. For upgrades, consider ATMEGA328PB-MUR. Always verify pinouts and features for compatibility.
Features
The ATmega328P-MUR is a low-power, high-performance 8-bit AVR microcontroller by Microchip. Key features:
- Core: 8-bit AVR RISC, up to 20 MHz clock speed.
- Memory: 32KB Flash, 1KB EEPROM, 2KB SRAM.
- I/O: 23 programmable GPIO pins.
- Peripherals:
- Two 8-bit & one 16-bit timer/counter.
- 6-channel 10-bit ADC.
- USART, SPI, I²C interfaces.
- Watchdog timer & brown-out detector.
- Power: 1.8V–5.5V operation, low idle current (~0.1µA in power-down).
- Package: 32-pin QFN (5x5mm), surface-mount.
- Debugging: On-chip debug (OCD) via JTAG.
Ideal for embedded systems, IoT, and Arduino-compatible projects.
- Core: 8-bit AVR RISC, up to 20 MHz clock speed.
- Memory: 32KB Flash, 1KB EEPROM, 2KB SRAM.
- I/O: 23 programmable GPIO pins.
- Peripherals:
- Two 8-bit & one 16-bit timer/counter.
- 6-channel 10-bit ADC.
- USART, SPI, I²C interfaces.
- Watchdog timer & brown-out detector.
- Power: 1.8V–5.5V operation, low idle current (~0.1µA in power-down).
- Package: 32-pin QFN (5x5mm), surface-mount.
- Debugging: On-chip debug (OCD) via JTAG.
Ideal for embedded systems, IoT, and Arduino-compatible projects.
Pinout
The ATMEGA328P-MUR is a 32-pin microcontroller in a QFN package. Key functions include:
- GPIO: 23 programmable I/O pins.
- Analog Inputs: 6-channel 10-bit ADC.
- Communication:
- USART (Serial)
- SPI
- I²C (TWI)
- Timers: Three (two 8-bit, one 16-bit).
- PWM: 6 outputs.
- Memory:
- 32KB Flash
- 2KB SRAM
- 1KB EEPROM
- Clock: Up to 20MHz (external).
Commonly used in Arduino boards (e.g., Uno). Pins support interrupts, ADC, and peripherals.
- GPIO: 23 programmable I/O pins.
- Analog Inputs: 6-channel 10-bit ADC.
- Communication:
- USART (Serial)
- SPI
- I²C (TWI)
- Timers: Three (two 8-bit, one 16-bit).
- PWM: 6 outputs.
- Memory:
- 32KB Flash
- 2KB SRAM
- 1KB EEPROM
- Clock: Up to 20MHz (external).
Commonly used in Arduino boards (e.g., Uno). Pins support interrupts, ADC, and peripherals.
Manufacturer
The ATMEGA328P-MUR is manufactured by Microchip Technology, a leading American semiconductor company. Microchip specializes in microcontrollers, analog, and Flash-IP solutions, serving industries like automotive, industrial, consumer electronics, and IoT. Known for reliability and innovation, Microchip acquired Atmel (the original developer of the ATmega series) in 2016, integrating its products into its portfolio. The ATMEGA328P-MUR is a popular 8-bit AVR microcontroller, widely used in embedded systems, including Arduino boards.
Microchip is a Fortune 500 company headquartered in Chandler, Arizona, recognized for its broad range of embedded control solutions.
Microchip is a Fortune 500 company headquartered in Chandler, Arizona, recognized for its broad range of embedded control solutions.
Application
The ATmega328P-MUR is widely used in embedded systems due to its versatility, low power consumption, and cost-effectiveness. Key application areas include:
1. Arduino Boards (Uno, Nano, Pro Mini) – for DIY electronics and prototyping.
2. IoT Devices – sensors, smart home gadgets, and wireless nodes.
3. Consumer Electronics – toys, remote controls, and small appliances.
4. Industrial Control – automation, motor control, and monitoring systems.
5. Robotics – small robotic controllers and drones.
6. Automotive – basic control modules and diagnostics.
Its 8-bit AVR architecture, integrated peripherals (ADC, PWM, UART), and compact MLF-32 package make it ideal for space-constrained designs.
1. Arduino Boards (Uno, Nano, Pro Mini) – for DIY electronics and prototyping.
2. IoT Devices – sensors, smart home gadgets, and wireless nodes.
3. Consumer Electronics – toys, remote controls, and small appliances.
4. Industrial Control – automation, motor control, and monitoring systems.
5. Robotics – small robotic controllers and drones.
6. Automotive – basic control modules and diagnostics.
Its 8-bit AVR architecture, integrated peripherals (ADC, PWM, UART), and compact MLF-32 package make it ideal for space-constrained designs.
Package
The ATMEGA328P-MUR comes in a QFN-32 (MLF-32) package. This is a 32-pad Quad Flat No-Lead (QFN) package with dimensions of 5x5mm and a 0.5mm pitch. It is surface-mountable, compact, and suitable for space-constrained applications. The "MUR" suffix indicates a tape-and-reel packaging for automated assembly.
