| Specification of ATMEGA644P-20AQ | |
|---|---|
| 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 ~ 105C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 44-TQFP |
| Supplier Device Package | 44-TQFP (10×10) |
Applications
The ATMEGA644P-20AQ microcontroller 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.
- Home Automation Systems: Used in smart home devices that manage lighting, security, and appliances.
- Medical Devices: Employed in portable medical equipment like blood glucose monitors and ECG machines.
- Automotive Electronics: Integrated into vehicle diagnostics tools and infotainment systems.
- Consumer Electronics: Found in digital cameras, MP3 players, and other small electronic gadgets.
Operating Temperature: -40¡ãC to +85¡ãC
Key Advantages
1. **High Performance:** Equipped with a powerful 8-bit RISC processor running at up to 16 MHz.
2. **Advanced Memory Management:** Includes 64 KB of Flash memory and 1 KB of SRAM, supporting large-scale applications.
3. **Power Efficiency:** Designed with low-power modes to extend battery life in portable devices.
4. **Certification Standards:** Meets automotive and industrial safety standards, ensuring reliable operation in demanding environments.
Frequently Asked Questions
Q1: What is the maximum operating temperature range supported by the ATMEGA644P-20AQ?
A1: The ATMEGA644P-20AQ operates within a temperature range from -40¡ãC to +85¡ãC, making it suitable for both cold and hot environments.
Q2: Can the ATMEGA644P-20AQ be used in automotive applications?
A2: Yes, the microcontroller meets automotive safety standards such as ISO 26262, making it appropriate for use in automotive electronics.
Q3: In which specific scenarios would you recommend using the ATMEGA644P-20AQ?
A3: The ATMEGA644P-20AQ is ideal for applications requiring high reliability and performance, such as industrial automation systems, medical devices, and automotive electronics.
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