| Specification of ATMEGA644-20MU | |
|---|---|
| Status | Active |
| Series | AVR? ATmega |
| Package | Bulk |
| Supplier | Rochester Electronics, LLC |
| Digi-Key Programmable | Not Verified |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | IC, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 32 |
| Program Memory Size | 64KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 2K x 8 |
| RAM Size | 4K x 8 |
| Voltage – Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40C ~ 85C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 44-VFQFN Exposed Pad |
| Supplier Device Package | 44-VQFN (7×7) |
Applications
The ATMEGA644-20MU is widely used in various industries due to its robust performance and versatile features. Here are some key applications:
- Industrial Automation: Utilized in control systems requiring high reliability and precision.
- Consumer Electronics: Commonly found in smart home devices like thermostats and security systems.
- Medical Devices: Used in portable diagnostic tools that need precise timing and power management.
- Automotive Systems: Integrated into vehicle electronics for safety and comfort features.
- Embedded Systems: Employed in a variety of embedded applications where low-power operation is crucial.
Operating Temperature: -40¡ãC to +85¡ãC
Key Advantages
1. **High Performance:** The ATMEGA644-20MU offers exceptional processing speed and memory capacity, making it suitable for complex tasks.
2. **Advanced Architecture:** It includes a unique instruction set architecture that enhances computational efficiency.
3. **Power Efficiency:** Equipped with advanced power-saving modes that reduce energy consumption significantly.
4. **Certification Standards:** Meets stringent industrial and automotive standards ensuring reliability and safety.
Frequently Asked Questions
Q1: What is the maximum operating frequency of the ATMEGA644-20MU?
A1: The ATMEGA644-20MU can operate at up to 16 MHz, providing sufficient processing power for most applications.
Q2: Is the ATMEGA644-20MU compatible with other microcontrollers from the same series?
A2: Yes, the ATMEGA644-20MU is fully backward-compatible with other microcontrollers from the ATmega series, allowing easy integration and upgrade paths.
Q3: In which specific scenarios would you recommend using the ATMEGA644-20MU over other microcontrollers?
A3: The ATMEGA644-20MU is recommended for applications requiring high performance, low power consumption, and robustness against harsh environments, such as industrial automation and medical devices.
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