Microchip Technology ATMEGA644PA-PU
| 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 | Tube | |
| 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Through Hole |
| Supplier Device Package | 40-PDIP |
| Package / Case | 40-DIP (0.600", 15.24mm) |
| ROHS |  |
The Microchip ATMEGA644PA-PU is a high-performance 8-bit AVR microcontroller in a 40-pin DIP package. It delivers 64KB flash memory, 4KB SRAM, and operates at up to 20MHz with a wide 1.8V to 5.5V supply range. Built-in features include brown-out detection, power-on reset, PWM channels, and a watchdog timer, ensuring robust operation in demanding embedded applications.
- High Code Density: 64KB flash in a DIP package allows complex programs without external memory, reducing BOM cost.
- Wide Voltage Range: 1.8V to 5.5V operation supports both 3.3V and 5V logic systems, simplifying design.
- Through-Hole Package: 40-DIP enables easy soldering and socketing for prototyping and low-volume production.
- Integrated Safety Features: Brown-out reset and watchdog timer enhance system reliability in noisy environments.
Industrial Automation Controllers
The 20MHz AVR core with 64KB flash provides ample processing and storage for PLC logic, sensor interfacing, and actuator control in industrial environments.
Embedded Sensor Systems
With 4KB SRAM and multiple PWM channels, it can handle data acquisition from analog sensors and generate precise control signals for motor speed regulation.
Prototyping and Education
The 40-pin DIP package is breadboard-friendly, making it ideal for rapid prototyping, university labs, and hobbyist projects requiring a robust 8-bit MCU.
Battery-Powered Devices
Operating from 1.8V to 5.5V, it supports low-voltage battery operation with power-saving sleep modes, extending battery life in portable instruments.
Automotive Aftermarket Modules
The -40°C to 85°C temperature range and WDT ensure reliable operation in automotive interior modules like window controls or seat memory units.
HVAC Control Boards
Its PWM outputs and temperature sensing capabilities enable precise fan speed control and thermostat logic in heating, ventilation, and air conditioning systems.
- Q: What is the maximum operating frequency of the ATMEGA644PA-PU?
- A: The ATMEGA644PA-PU operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
- Q: What package is the ATMEGA644PA-PU available in?
- A: It comes in a 40-pin DIP (0.600", 15.24mm) package, ideal for through-hole prototyping.
- Q: How much flash memory does this MCU have?
- A: It features 64KB of in-system programmable flash memory (32K x 16) and 4KB SRAM.
- Q: Does the ATMEGA644PA-PU include a watchdog timer?
- A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detection, POR, and PWM.
ATMEGA644PA-PU.pdf
- Q: What is the maximum operating frequency of the ATMEGA644PA-PU?
- A: The ATMEGA644PA-PU operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
- Q: What package is the ATMEGA644PA-PU available in?
- A: It comes in a 40-pin DIP (0.600", 15.24mm) package, ideal for through-hole prototyping.
- Q: How much flash memory does this MCU have?
- A: It features 64KB of in-system programmable flash memory (32K x 16) and 4KB SRAM.
- Q: Does the ATMEGA644PA-PU include a watchdog timer?
- A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detection, POR, and PWM.
