ATMEGA644-20AU
Manufacturer: Microchip Technology
Part Number: ATMEGA644-20AU
| Attribute | Value |
| cate_name | Microcontrollers (MCU) |
| Datasheet | ATMEGA644-20AU Microchip Technology |
| rohs | Compliance |
| reference_package | QFP |
| mounting | SMD mount |
| application_level | Industrial |
| lifecycle | On sale |
| spm | Tape & Reel,tray |
| min_operating_temperature | -40℃(TA) |
| max_operating_temperature | 85℃(TA) |
| length_width_height | 10mm*10mm*1mm |
| core_processor | AVR |
| data_bus_width | 8bit |
| data_converter | A/D 8x10b |
| eeprom | 2 x 8 |
| interface_type | I2C，SPI，UART，USART |
| max_clock_frequency | 20MHz |
| max_operating_supply_voltage | 5.5V |
| min_operating_supply_voltage | 2.7V |
| number_of_cpu_cores | 1 |
| number_of_ios | 32 |
| oscillator_type | inside |
| peripherals | Brown-out Detect/Reset,POR,PWM,WDT |
| program_memory_size | 64KB |
| program_memory_type | FLASH |
| ram_size | 4KB |
| speed | 20MHz |
| voltage_supply_vcc_vdd | 2.7V~5.5V |
The Microchip Technology ATMEGA644-20AU is a high-performance, low-power 8-bit microcontroller unit (MCU) based on the AVR enhanced RISC architecture. This MCU is designed to provide efficient processing capabilities for a wide range of applications, from simple to complex, with its robust feature set and power-saving capabilities.
Features
1. Enhanced RISC Architecture: The ATMEGA644-20AU features an enhanced RISC architecture that provides 131 powerful instructions yet requires only 1.5 clock cycles per instruction on average.
2. High-Speed Operation: Operating at a frequency of up to 20 MHz, this MCU ensures high-speed data processing.
3. 64KB In-System Programmable Flash: Offers ample storage for program code and application data.
4. EEPROM: 2KB of EEPROM allows for non-volatile storage of data.
5. SRAM: 4KB of SRAM provides additional data handling capabilities.
6. I/O Ports: 40 general digital I/O lines, with 21 of them being 5V tolerant.
7. Communication Interfaces: Includes UART, SPI, and I2C for serial communication.
8. Timers/Counters: 3 general-purpose 8-bit timers/counters with PWM capabilities.
9. ADC: 8-channel 10-bit ADC for analog input processing.
10. Boot Loader: Facilitates in-system programming and application code download.
Development Support
Microchip provides a comprehensive development ecosystem for the ATMEGA644-20AU, including:
- AVR Studio: An integrated development environment (IDE) for programming and debugging.
- AVR GCC Compiler: Open-source compiler for C/C++ programming.
- ASF (Atmel Software Framework): A collection of libraries and drivers to simplify development.
- AVR Simulator: A software tool that simulates the behavior of the microcontroller.
Application Fields
The ATMEGA644-20AU is suitable for a variety of applications due to its versatility and performance, including:
- Industrial control systems
- Home automation
- Portable devices
- Data acquisition systems
- Motor control applications
Parameter Introduction
- Core: 8-bit AVR RISC
- Clock Speed: Up to 20 MHz
- Flash Memory: 64KB
- EEPROM: 2KB
- SRAM: 4KB
- I/O Lines: 40 (21 5V tolerant)
- ADC Channels: 8, 10-bit
- Timers/Counters: 3 with PWM
- Communication: UART, SPI, I2C
- Package: TQFP-44
FAQs
1. Q: What is the maximum clock speed of the ATMEGA644-20AU?
A: The maximum clock speed is 20 MHz.
2. Q: How much EEPROM and SRAM does the ATMEGA644-20AU have?
A: It has 2KB of EEPROM and 4KB of SRAM.
3. Q: What types of communication interfaces are available on the ATMEGA644-20AU?
A: It supports UART, SPI, and I2C interfaces.
4. Q: Does the ATMEGA644-20AU have a built-in ADC?
A: Yes, it has an 8-channel, 10-bit ADC.
5. Q: Is there support for in-system programming?
A: Yes, it features 64KB of in-system programmable flash memory and a boot loader for in-system programming.
This overview provides a snapshot of the capabilities and features of the Microchip Technology ATMEGA644-20AU, highlighting its suitability for a broad range of applications and the support available for developers.
Please refer to the product rule book for details.
Microchip Technology's product line is vast and diverse, designed to serve a multitude of industries ranging from automotive to consumer electronics . The company is renowned for its range of microcontrollers, including the popular PIC microcontrollers, which are widely used in a variety of applications for their ease of programming and cost-effectiveness. Microchip's microcontrollers are complemented by a robust suite of software tools, providing developers with comprehensive solutions to create innovative and efficient products.
In addition to microcontrollers, Microchip Technology offers a broad spectrum of analog devices, including amplifiers, linear and interface products, power management devices, and data converters. These components are crucial for building complex electronic systems that require precise signal management and conversion.
Microchip also excels in providing a variety of memory products, including EEPROM, SRAM, and Flash memory chips, which are essential for data storage in electronic devices. The company's expertise in Flash-IP integration allows them to offer unique solutions that integrate flexible memory technologies with microcontrollers to streamline product design and reduce costs.
The company's commitment to innovation is further exemplified by its foray into the Internet of Things (IoT) and connectivity solutions. Microchip provides a range of wireless products, including Wi-Fi, Bluetooth, and LoRa technologies, enabling devices to connect and communicate seamlessly in an increasingly interconnected world.
Microchip Technology places a strong emphasis on quality and reliability, which is critical for applications where failure is not an option, such as in automotive and medical devices. The company operates state-of-the-art manufacturing facilities that adhere to rigorous standards for quality control and assurance.
Education and support are also key aspects of Microchip's strategy. The company offers extensive training, webinars, and technical support resources to help designers and engineers utilize their products effectively. This educational support, combined with user-friendly development tools, helps to lower the barrier to entry for using advanced microelectronics in new applications.
Furthermore, Microchip Technology is dedicated to sustainability and responsible business practices. The company actively works to minimize its environmental impact through waste reduction, energy management, and sustainable innovation.
In conclusion, Microchip Technology stands out as a robust and innovative company that not only provides a wide range of electronic components but also supports its offerings with strong customer support, comprehensive development tools, and a commitment to quality and sustainability. Whether for automotive safety systems, consumer electronics, industrial applications, or emerging IoT devices, Microchip Technology continues to be at the forefront of microelectronic solutions, driving technology forward in a multitude of sectors.
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