Microchip Technology ATMEGA644P-20AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.70 | $6.70 |
| 15+ | $6.49 | $97.35 |
| 25+ | $6.35 | $158.75 |
| 50+ | $5.99 | $299.50 |
| 100+ | $5.29 | $529.00 |
| N+ | $1.06 | Price Inquiry |
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| 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 ATMEGA644P-20AU is a high-performance 8-bit AVR microcontroller from Microchip Technology. It features 64KB of Flash memory and 4KB SRAM, operating at speeds up to 20MHz. With a wide voltage range of 2.7V to 5.5V, it suits both battery and line-powered designs. The 44-TQFP package offers a compact footprint for space-constrained applications.
- Large memory footprint: 64KB Flash enables complex firmware without external storage.
- Wide voltage tolerance: 2.7V-5.5V simplifies power supply design.
- High-speed operation: 20MHz clock delivers fast response for real-time tasks.
- Robust protection: Includes brown-out detection and watchdog timer for system reliability.
Industrial Control Systems
With 64KB Flash and 4KB SRAM, the ATMEGA644P-20AU handles complex control loops and data logging in PLCs and industrial automation.
Sensor Networks
Its low-voltage operation down to 2.7V and multiple sleep modes make it ideal for battery-powered environmental monitoring nodes.
Automotive Aftermarket
The -40°C to 85°C temperature range and robust WDT ensure reliable operation in engine control units and telematics.
Medical Devices
PWM outputs and analog comparators support precise motor control in infusion pumps and portable diagnostic tools.
Smart Agriculture
With 32 I/O pins, it can interface with multiple soil sensors and actuators for automated irrigation systems.
Consumer Robotics
The 20MHz AVR core provides sufficient throughput for obstacle avoidance algorithms and servo control in hobby robots.
- Q: What is the maximum clock speed of the ATMEGA644P-20AU?
- A: The maximum clock speed is 20MHz.
- Q: What is the program memory size?
- A: It has 64KB of Flash program memory.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V.
- Q: What package is this available in?
- A: It comes in a 44-TQFP package.
ATMEGA644P-20AU.pdf
- Q: What is the maximum clock speed of the ATMEGA644P-20AU?
- A: The maximum clock speed is 20MHz.
- Q: What is the program memory size?
- A: It has 64KB of Flash program memory.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V.
- Q: What package is this available in?
- A: It comes in a 44-TQFP package.
