ATMEGA328-MMH

Product Overview

Category: Microcontroller
Use: Embedded Systems
Characteristics: Low-power, high-performance
Package: QFN-32
Essence: 8-bit AVR microcontroller
Packaging/Quantity: Tray, 250 units per tray

Specifications

• Architecture: AVR
• Flash Memory: 32KB
• SRAM: 2KB
• EEPROM: 1KB
• Operating Voltage: 1.8V - 5.5V
• Operating Temperature: -40°C to +85°C
• Clock Speed: Up to 20MHz
• Digital I/O Pins: 23
• Analog Input Pins: 6
• PWM Channels: 6
• Communication Interfaces: UART, SPI, I2C
• Timers/Counters: 3
• ADC Resolution: 10-bit
• Power Consumption: Idle Mode: 0.1mA, Active Mode: 1.5mA (at 1MHz, 1.8V)
• Package Dimensions: 5mm x 5mm

Pin Configuration

The ATMEGA328-MMH microcontroller has a total of 32 pins. The pin configuration is as follows:

Functional Features

• High-performance, low-power 8-bit microcontroller
• Advanced RISC architecture for efficient execution of instructions
• Wide operating voltage range for flexibility in various applications
• Large flash memory for program storage
• Built-in EEPROM for non-volatile data storage
• Multiple communication interfaces for easy integration with other devices
• PWM channels for precise control of analog outputs
• Timers/counters for accurate timing and event counting
• Analog-to-digital converter for analog signal processing

Advantages

• Low power consumption makes it suitable for battery-powered applications
• High-performance architecture allows for efficient execution of instructions
• Wide operating voltage range provides flexibility in different power supply scenarios
• Ample flash memory and EEPROM enable storage of program code and data
• Multiple communication interfaces facilitate easy connectivity with other devices
• PWM channels and ADC allow for precise control of analog signals

Disadvantages

• Limited number of I/O pins may restrict the complexity of certain projects
• 8-bit architecture may not be sufficient for demanding computational tasks
• Lack of built-in peripherals may require additional external components for specific applications

Working Principles

The ATMEGA328-MMH microcontroller operates based on the AVR architecture, which utilizes a modified Harvard architecture. It executes instructions stored in its flash memory, utilizing the RISC (Reduced Instruction Set Computing) approach for efficient instruction execution. The microcontroller communicates with external devices through various communication interfaces such as UART, SPI, and I2C. It can perform analog-to-digital conversion using its built-in ADC, enabling it to process analog signals. The microcontroller's timers/counters provide accurate timing and event counting capabilities.

Detailed Application Field Plans

The ATMEGA328-MMH microcontroller finds applications in various fields, including:

1. Home Automation Systems: Controlling lights, appliances, and security systems.
2. Industrial Automation: Monitoring and controlling machinery and processes.
3. Internet of Things (IoT): Connecting devices to the internet for remote monitoring and control.
4. Robotics: Controlling robot movements and interactions.
5. Automotive Electronics: Managing vehicle systems and functions.
6. Consumer Electronics: Powering and controlling electronic devices.

Detailed and Complete Alternative Models

1. ATMEGA328P-PU: DIP package, 28-pin version of ATMEGA328-MMH.
2. ATMEGA168A-PU: DIP package, lower flash memory and pin count compared to ATMEGA328-MMH.
3. ATMEGA2560-16AU: TQFP package, higher flash memory and pin count compared to ATMEGA328-MMH.

These alternative models offer different features and specifications to cater to diverse project requirements.

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