Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tube |
| 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 | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 6x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
Tổng quan
Description
The ATMEGA48A-PU is an 8-bit microcontroller from Microchip Technology, belonging to the AVR family. It is designed for a wide range of applications, offering a good balance of performance, power efficiency, and cost-effectiveness. The ATMEGA48A-PU features a RISC (Reduced Instruction Set Computing) architecture, with 32 general-purpose working registers and a rich instruction set that allows for efficient programming.
Key specifications include 4KB of flash memory for program storage, 512 bytes of SRAM, and 256 bytes of EEPROM for data retention. It operates at clock speeds up to 20 MHz and supports a voltage range of 1.8V to 5.5V, making it versatile for various power environments. The microcontroller includes peripherals such as timers, I2C, SPI, UART interfaces, and ADCs, enhancing its functionality for embedded applications.
Programmable I/O ports facilitate interaction with other devices. It is commonly used in consumer electronics, industrial control systems, and hobbyist projects, where cost and power efficiency are crucial. Its DIP-28 package makes it suitable for prototyping and development on breadboards and custom PCBs.
Key specifications include 4KB of flash memory for program storage, 512 bytes of SRAM, and 256 bytes of EEPROM for data retention. It operates at clock speeds up to 20 MHz and supports a voltage range of 1.8V to 5.5V, making it versatile for various power environments. The microcontroller includes peripherals such as timers, I2C, SPI, UART interfaces, and ADCs, enhancing its functionality for embedded applications.
Programmable I/O ports facilitate interaction with other devices. It is commonly used in consumer electronics, industrial control systems, and hobbyist projects, where cost and power efficiency are crucial. Its DIP-28 package makes it suitable for prototyping and development on breadboards and custom PCBs.
Equivalent
Equivalent products to the ATMEGA48A-PU chip typically include other microcontrollers from the AVR family, such as the ATMEGA48PA-PUATMEGA88A-PU, and ATMEGA328P-PU These alternatives offer similar functionalities with variations in memory, speed, and additional features. Other manufacturers like Microchip, which owns Atmel, may also offer comparable models within their PIC microcontroller series. When selecting an equivalent, ensure compatibility with your application's specific requirements.
Features
The ATmega48A-PU is an 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. Key features include:
1. CPU and Memory: It has an 8-bit CPU with 4KB of Flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM.
2. Performance: It can achieve throughput up to 20 MIPS at 20 MHz.
3. I/O Ports: It provides 23 programmable I/O lines.
4. Timers: Includes two 8-bit timers/counters and one 16-bit timer/counter.
5. Communication Interfaces: Supports USART, SPI, and I2C (TWI) communication protocols.
6. Analog Features: Has a 10-bit ADC with up to 6 channels.
7. Power: Operates at a voltage range of 1.8V to 5.5V and features power-saving modes like Idle, ADC Noise Reduction, Power-save, Power-down, and Standby.
8. Package: Available in a 28-pin DIP package.
9. Temperature Range: Designed to operate in the industrial temperature range.
10. Additional Features: It includes a watchdog timer, internal and external interrupts, and programmable brown-out detection.
These features make it suitable for a variety of embedded applications.
1. CPU and Memory: It has an 8-bit CPU with 4KB of Flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM.
2. Performance: It can achieve throughput up to 20 MIPS at 20 MHz.
3. I/O Ports: It provides 23 programmable I/O lines.
4. Timers: Includes two 8-bit timers/counters and one 16-bit timer/counter.
5. Communication Interfaces: Supports USART, SPI, and I2C (TWI) communication protocols.
6. Analog Features: Has a 10-bit ADC with up to 6 channels.
7. Power: Operates at a voltage range of 1.8V to 5.5V and features power-saving modes like Idle, ADC Noise Reduction, Power-save, Power-down, and Standby.
8. Package: Available in a 28-pin DIP package.
9. Temperature Range: Designed to operate in the industrial temperature range.
10. Additional Features: It includes a watchdog timer, internal and external interrupts, and programmable brown-out detection.
These features make it suitable for a variety of embedded applications.
Pinout
The ATmega48A-PU is an 8-bit microcontroller from Microchip Technology, part of the AVR family. It has a total of 28 pins. Key functions of these pins include:
1. Power Supply: VCC and GND pins are used for powering the microcontroller.
2. I/O Ports: It features 23 programmable I/O lines, organized into three ports: PORTB, PORTC, and PORTD.
3. Analog to Digital Converter (ADC): It has 6-channel ADC inputs for analog signal interfacing.
4. Timers/Counters: Multiple pins are designated for timers and counter functionalities, often used in PWM generation.
5. USART: Pins for serial communication through Universal Synchronous and Asynchronous serial Receiver and Transmitter.
6. SPI: Serial Peripheral Interface pins for synchronous data transfer.
7. I2C: Two-wire interface for communication with other I2C devices.
8. Reset: A dedicated pin for resetting the microcontroller.
9. Oscillator: Pins for connecting an external clock source if needed.
These functions allow the ATmega48A-PU to be versatile for various applications in embedded systems.
1. Power Supply: VCC and GND pins are used for powering the microcontroller.
2. I/O Ports: It features 23 programmable I/O lines, organized into three ports: PORTB, PORTC, and PORTD.
3. Analog to Digital Converter (ADC): It has 6-channel ADC inputs for analog signal interfacing.
4. Timers/Counters: Multiple pins are designated for timers and counter functionalities, often used in PWM generation.
5. USART: Pins for serial communication through Universal Synchronous and Asynchronous serial Receiver and Transmitter.
6. SPI: Serial Peripheral Interface pins for synchronous data transfer.
7. I2C: Two-wire interface for communication with other I2C devices.
8. Reset: A dedicated pin for resetting the microcontroller.
9. Oscillator: Pins for connecting an external clock source if needed.
These functions allow the ATmega48A-PU to be versatile for various applications in embedded systems.
Manufacturer
The ATMEGA48A-PU is manufactured by Microchip Technology Inc. Microchip Technology is an American company that designs and manufactures microcontrollers, memory, and analog semiconductors. It is known for producing a wide range of microcontroller and microprocessor products, along with associated peripherals and development tools. The company caters to various industries, including automotive, industrial, consumer, aerospace, and telecommunications, providing embedded solutions that enhance performance and efficiency.
Application
The ATMEGA48A-PU is a microcontroller widely used in various applications due to its versatility and low power consumption. Common application areas include embedded systems, home automation, consumer electronics, and automotive controls. It is also used in industrial automation for controlling machinery, sensors, and actuators. Additionally, it finds applications in robotics for motor control and sensor interfacing, and in IoT devices for data processing and communication. Its robust features and ease of programming make it suitable for educational purposes in electronics and programming courses.
Package
The ATMEGA48A-PU is a microcontroller from Microchip Technology (formerly Atmel) featuring a PDIP (Plastic Dual In-line Package) with 28 pins. The PDIP package is through-hole, making it suitable for prototyping and hobbyist applications on breadboards or PCBs with through-hole technology.
