Microchip Technology ATMEGA644-20AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.52 | $6.52 |
| 15+ | $6.31 | $94.65 |
| 25+ | $6.17 | $154.25 |
| 50+ | $5.83 | $291.50 |
| 100+ | $5.15 | $515.00 |
| N+ | $1.03 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | |
| 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 | 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 | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-TQFP (10x10) |
| Package / Case | 44-TQFP |
| ROHS |  |
The Microchip ATMEGA644-20AU is a versatile 8-bit AVR microcontroller with a 20 MHz core, 64 KB flash, and 4 KB RAM. It includes PWM, brown-out reset, and watchdog timer, packaged in a 44-TQFP. Operating from 2.7V to 5.5V and -40°C to 85°C, it is ideal for robotics, industrial control, and IoT edge devices requiring a balance of memory and performance.
- Large 64 KB flash: Supports complex applications like protocol stacks and data logging.
- Wide voltage range (2.7V-5.5V): Flexible for battery or regulated power supplies.
- High-speed 20 MHz AVR core: Efficient execution for real-time control.
- 4 KB RAM: Ample for buffering and dynamic data in sensor applications.
- Industrial temperature range: Reliable in harsh environments.
3D Printer Controllers
With 64 KB flash and 20 MHz speed, it runs complex G-code interpretation and stepper motor control in desktop 3D printers.
Robotics Platforms
The 4 KB RAM and multiple PWM channels enable servo control and sensor fusion in hobby and educational robots.
Smart Agriculture Sensors
Operating at 2.7V-5.5V, it suits battery-powered soil moisture and weather stations with low-power sleep modes.
Industrial Automation
Its wide voltage range and -40°C to 85°C rating make it reliable for conveyor belt controllers and safety interlocks.
Home Automation Gateways
With 64 KB flash, it handles Zigbee/ZWave protocol stacks and local rule processing in smart home hubs.
Data Acquisition Systems
The 4 KB RAM and ADC (typical) support multi-channel logging in laboratory equipment.
- Q: What core does the ATMEGA644-20AU use?
- A: It is based on the AVR 8-bit RISC core running at up to 20 MHz.
- Q: What is the program memory size?
- A: It features 64 KB of flash program memory (32K x 16).
- Q: What is the supply voltage range?
- A: The device operates from 2.7V to 5.5V, supporting both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 44-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it include PWM and WDT?
- A: Yes, it includes PWM, watchdog timer, brown-out reset, and power-on reset.
ATMEGA644-20AU.pdf
- Q: What core does the ATMEGA644-20AU use?
- A: It is based on the AVR 8-bit RISC core running at up to 20 MHz.
- Q: What is the program memory size?
- A: It features 64 KB of flash program memory (32K x 16).
- Q: What is the supply voltage range?
- A: The device operates from 2.7V to 5.5V, supporting both 3.3V and 5V systems.
- Q: What package is available?
- A: It comes in a 44-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it include PWM and WDT?
- A: Yes, it includes PWM, watchdog timer, brown-out reset, and power-on reset.
