Microchip Technology ATMEGA809-MF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.24 | $5.24 |
| 15+ | $1.21 | $18.15 |
| 25+ | $1.18 | $29.50 |
| 50+ | $1.11 | $55.50 |
| 100+ | $0.98 | $98.00 |
| N+ | $0.20 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | megaAVR® 0, Functional Safety (FuSa) |
| Packaging | Tray | 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 | 41 |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 16x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-VQFN (6x6) |
| Package / Case | 48-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA809-MF is a high-performance 8-bit AVR microcontroller in a compact 48-VFQFN package. It delivers 20MHz processing with 8KB flash and 1KB SRAM, supporting a wide 1.8V to 5.5V supply range. Integrated brown-out detection, power-on reset, PWM, and watchdog timer ensure reliable operation in demanding environments from -40°C to 125°C.
- Wide voltage range (1.8V-5.5V) – enables flexible power design from batteries to regulated rails.
- High-temperature tolerance (125°C) – suitable for automotive and industrial harsh environments.
- Compact 48-QFN package – saves PCB space while providing exposed pad for heat dissipation.
- Integrated safety features (BOD, POR, WDT) – reduces external components and improves system reliability.
Industrial Sensor Nodes
With 8KB flash and 1KB SRAM, the ATMEGA809-MF handles sensor data acquisition and local processing at 20MHz, ideal for low-power industrial monitoring.
Battery-Powered Devices
Its 1.8V minimum supply voltage allows direct operation from single-cell batteries, extending runtime in portable instruments.
Motor Control
The PWM modules and 5.5V capability enable simple brushed DC motor drivers without external level shifters.
Automotive Environment Sensing
Rated for -40°C to 125°C, it reliably operates in under-hood or engine-adjacent sensing applications.
Smart Home Controllers
With multiple timers and WDT, it can manage lighting or HVAC control loops with robust fault recovery.
Prototyping and Education
The exposed pad QFN simplifies thermal management and manual soldering for rapid prototyping.
- Q: What is the operating voltage range of the ATMEGA809-MF?
- A: The ATMEGA809-MF operates from 1.8V to 5.5V, making it suitable for battery and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz with an AVR core.
- Q: What package is available?
- A: It comes in a 48-VFQFN exposed pad package for compact designs.
- Q: Does it include analog peripherals?
- A: Yes, it features PWM, brown-out detect, POR, and WDT.
- Q: What is the operating voltage range of the ATMEGA809-MF?
- A: The ATMEGA809-MF operates from 1.8V to 5.5V, making it suitable for battery and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz with an AVR core.
- Q: What package is available?
- A: It comes in a 48-VFQFN exposed pad package for compact designs.
- Q: Does it include analog peripherals?
- A: Yes, it features PWM, brown-out detect, POR, and WDT.

ATMEGA809-MF.pdf