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ATMEGA48-20MI
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ATMEGA48-20MI

Product Overview

Category: Microcontroller
Use: Embedded Systems
Characteristics: Low-power, high-performance
Package: 32-pin QFN
Essence: Advanced 8-bit RISC architecture
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Operating Voltage: 2.7V - 5.5V
  • Flash Memory: 4KB
  • SRAM: 512 bytes
  • EEPROM: 256 bytes
  • Clock Speed: 20MHz
  • Digital I/O Pins: 23
  • Analog Input Channels: 6
  • Serial Communication Interfaces: USART, SPI, I2C
  • Timers/Counters: 3
  • PWM Channels: 6
  • Interrupts: 23

Detailed Pin Configuration

The ATMEGA48-20MI microcontroller has a total of 32 pins, each serving a specific purpose. The pin configuration is as follows:

  1. PCINT14 / ADC4 / T0 / INT0 / PCINT0
  2. PCINT15 / ADC5 / T1 / INT1 / PCINT1
  3. PCINT16 / ADC6 / T2 / INT2 / PCINT2
  4. PCINT17 / ADC7 / AIN1 / INT3 / PCINT3
  5. PCINT18 / SDA / AIN0 / INT4 / PCINT4
  6. PCINT19 / SCL / OC0A / INT5 / PCINT5
  7. PCINT20 / TCK / OC0B / INT6 / PCINT6
  8. PCINT21 / TMS / OC1A / INT7 / PCINT7
  9. PCINT22 / TDO / OC1B / INT8 / PCINT8
  10. PCINT23 / TDI / OC2A / INT9 / PCINT9
  11. PCINT24 / TOSC1 / OC2B / INT10 / PCINT10
  12. PCINT25 / TOSC2 / AREF / INT11 / PCINT11
  13. GND
  14. VCC
  15. XTAL1
  16. XTAL2
  17. AVCC
  18. ADC6 / PCINT14
  19. ADC7 / PCINT15
  20. ADC4 / PCINT16
  21. ADC5 / PCINT17
  22. ADC0 / PCINT18
  23. ADC1 / PCINT19
  24. ADC2 / PCINT20
  25. ADC3 / PCINT21
  26. RESET
  27. RXD / PCINT22
  28. TXD / PCINT23
  29. XCK / PCINT24
  30. OC1B / PCINT25
  31. OC1A / PCINT26
  32. OC0B / PCINT27

Functional Features

  • Advanced 8-bit RISC architecture for high-performance applications
  • Low-power consumption, making it suitable for battery-powered devices
  • Wide operating voltage range allows flexibility in various applications
  • Ample flash memory and SRAM for storing program code and data
  • Built-in EEPROM for non-volatile data storage
  • Multiple serial communication interfaces for easy integration with other devices
  • Timers/Counters and PWM channels for precise timing and control
  • Interrupts for efficient handling of external events

Advantages and Disadvantages

Advantages: - High-performance microcontroller suitable for a wide range of applications - Low-power consumption extends battery life in portable devices - Ample memory and I/O options provide flexibility in design - Multiple communication interfaces simplify integration with other devices

Disadvantages: - Limited flash memory size may restrict the complexity of applications - Limited number of I/O pins may require additional external circuitry for larger projects

Working Principles

The ATMEGA48-20MI microcontroller operates based on an 8-bit Reduced Instruction Set Computer (RISC) architecture. It executes instructions stored in its flash memory, which can be programmed using a suitable development environment. The microcontroller communicates with external devices through its various serial communication interfaces, such as USART, SPI, and I2C. It can also generate precise timing signals using its timers/counters and PWM channels. Interrupts allow the microcontroller to respond promptly to external events.

Detailed Application Field Plans

The ATMEGA48-20MI microcontroller finds applications in various fields, including but not limited to:

  1. Home Automation Systems
  2. Industrial Control Systems
  3. Internet of Things (IoT) Devices
  4. Robotics
  5. Automotive Electronics
  6. Medical Equipment
  7. Consumer Electronics

Detailed and

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ATMEGA48-20MI v technických řešeních

  1. Question: What is the operating voltage range of ATMEGA48-20MI?
    Answer: The operating voltage range of ATMEGA48-20MI is 2.7V to 5.5V.

  2. Question: How many I/O pins does ATMEGA48-20MI have?
    Answer: ATMEGA48-20MI has a total of 23 I/O pins.

  3. Question: What is the maximum clock frequency supported by ATMEGA48-20MI?
    Answer: ATMEGA48-20MI can operate at a maximum clock frequency of 20 MHz.

  4. Question: Does ATMEGA48-20MI have built-in EEPROM memory?
    Answer: Yes, ATMEGA48-20MI has 256 bytes of built-in EEPROM memory.

  5. Question: Can ATMEGA48-20MI be used for analog-to-digital conversion?
    Answer: Yes, ATMEGA48-20MI has a 10-bit ADC with up to 8 channels for analog-to-digital conversion.

  6. Question: What is the flash memory size of ATMEGA48-20MI?
    Answer: ATMEGA48-20MI has 4KB of flash memory for program storage.

  7. Question: Does ATMEGA48-20MI support serial communication protocols?
    Answer: Yes, ATMEGA48-20MI supports USART, SPI, and I2C serial communication protocols.

  8. Question: Can ATMEGA48-20MI be used for PWM (Pulse Width Modulation) applications?
    Answer: Yes, ATMEGA48-20MI has 6 PWM channels that can be used for various applications.

  9. Question: Is ATMEGA48-20MI suitable for low-power applications?
    Answer: Yes, ATMEGA48-20MI has multiple sleep modes and power-saving features, making it suitable for low-power applications.

  10. Question: What is the package type of ATMEGA48-20MI?
    Answer: ATMEGA48-20MI comes in a 32-pin QFN (Quad Flat No-Lead) package.