Microchip Technology ATMEGA644PA-MNR
| 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 |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | NULL |
| 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) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
| ROHS |  |
The Microchip ATMEGA644PA-MNR is a high-performance 8-bit AVR microcontroller in a compact 44-VFQFN package. It delivers 64KB of flash memory and 4KB of SRAM, operating from 1.8V to 5.5V at speeds up to 20MHz. Built-in brown-out detection, power-on reset, and a watchdog timer ensure robust operation in demanding environments. Its low-power design and wide temperature range make it a versatile choice for industrial, automotive, and portable applications.
- Wide voltage range (1.8V-5.5V): Enables direct battery operation and 5V logic compatibility without level shifters.
- High endurance flash (64KB): Supports complex firmware with room for bootloaders and data storage.
- Extended temperature range (-40°C to 105°C): Reliable in harsh industrial and automotive environments.
- Integrated safety features: Brown-out reset and watchdog timer prevent system lockups and data corruption.
Industrial Automation Controllers
With 64KB flash and 4KB SRAM, the ATMEGA644PA-MNR can handle complex control loops and sensor management in PLCs and industrial timers, operating reliably across -40°C to 105°C.
Battery-Powered Data Loggers
The 1.8V minimum supply voltage and multiple sleep modes enable long-term field data logging with minimal power draw, while the 20MHz clock ensures fast data processing when active.
Smart Home Gateways
Its rich peripheral set including PWM and multiple I/O pins allows interfacing with Zigbee, Wi-Fi modules, and local sensors, making it a central hub for home automation.
Automotive Aftermarket Sensors
The extended temperature range and brown-out detection make it suitable for engine bay or cabin sensors, providing stable operation in harsh environments.
Medical Monitoring Devices
Low power consumption and reliable reset circuitry support portable patient monitors that require consistent operation and long battery life.
Precision Motor Control
Multiple PWM channels and a 20MHz AVR core enable smooth, high-frequency motor control for robotics and CNC machines, with the WDT ensuring fail-safe operation.
- Q: What is the operating voltage range of the ATMEGA644PA-MNR?
- A: It operates from 1.8V to 5.5V, making it suitable for battery-powered and 5V logic systems.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 20MHz, providing a balance of performance and power efficiency.
- Q: How much flash memory does it have?
- A: It features 64KB of in-system programmable flash, ideal for complex applications.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package for compact PCB designs.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a WDT along with brown-out detection and power-on reset for reliable operation.
ATMEGA644PA-MNR.pdf
- Q: What is the operating voltage range of the ATMEGA644PA-MNR?
- A: It operates from 1.8V to 5.5V, making it suitable for battery-powered and 5V logic systems.
- Q: What is the maximum clock speed?
- A: The AVR core runs at up to 20MHz, providing a balance of performance and power efficiency.
- Q: How much flash memory does it have?
- A: It features 64KB of in-system programmable flash, ideal for complex applications.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package for compact PCB designs.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a WDT along with brown-out detection and power-on reset for reliable operation.
