Microchip Technology ATMEGA4809-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.67 | $1.67 |
| 15+ | $1.62 | $24.30 |
| 25+ | $1.58 | $39.50 |
| 50+ | $1.50 | $75.00 |
| 100+ | $1.32 | $132.00 |
| N+ | $0.26 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | megaAVR® 0, Functional Safety (FuSa) |
| 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 | 41 |
| Program Memory Size | 48KB (24K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 6K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 16x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 48-QFN (7x7) |
| Package / Case | 48-VFQFN Exposed Pad |
| ROHS |
The ATMEGA4809-MU is a high-performance 8-bit AVR microcontroller from Microchip Technology, offering a rich feature set for advanced embedded applications. It operates from 1.8V to 5.5V and runs at up to 20MHz, providing efficient processing for a wide range of tasks. With 48KB Flash and 6KB RAM, it offers substantial memory for complex firmware and data handling. The 48-VFQFN package provides ample I/O pins for interfacing with peripherals. Integrated features include brown-out detect/reset, power-on reset, PWM, and watchdog timer, ensuring reliable operation. Its temperature range of -40°C to 85°C makes it suitable for industrial and commercial environments.
- Large 48KB Flash: Enables complex applications with multiple features and over-the-air update capability.
- 6KB RAM: Supports dynamic data structures and larger buffers, improving performance.
- High I/O count (48-VFQFN): Allows connection to many peripherals without external expanders.
- AVR core efficiency: Executes most instructions in a single clock cycle, maximizing throughput at 20MHz.
- Wide voltage range: Flexible power supply options, from battery to regulated 5V.
Advanced IoT Edge Nodes
With 48KB Flash and 6KB RAM, the ATMEGA4809-MU can run lightweight RTOS and handle MQTT/CoAP protocols, making it ideal for smart home and industrial IoT devices.
Robotics Controllers
Its 48-pin package offers numerous GPIOs for motor drivers, encoders, and sensors, while 20MHz speed supports real-time kinematics calculations.
Data Logging Systems
Large RAM allows buffering of sensor data before writing to SD cards or transmitting over wireless links, useful in environmental monitoring.
Human-Machine Interfaces (HMI)
With many I/O pins, it can drive LCDs, keypads, and LEDs, providing a responsive user interface for industrial equipment.
Smart Agriculture
Low voltage operation and robust features enable battery-powered soil sensors and irrigation controllers that operate reliably in outdoor conditions.
Educational Platforms
Its AVR architecture is widely supported, making it a great choice for prototyping and teaching embedded systems.
- Q: What is the core architecture?
- A: It uses the AVR core, which is an 8-bit RISC architecture known for efficiency.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, supporting a wide range of power supplies.
- Q: What is the maximum clock speed?
- A: The ATMEGA4809-MU runs at up to 20MHz, providing balanced performance.
- Q: How much memory does it have?
- A: It features 48KB Flash and 6KB RAM, offering generous resources for complex applications.
- Q: What package is available?
- A: It comes in a 48-VFQFN exposed pad package, providing many I/O pins.
- Q: What is the core architecture?
- A: It uses the AVR core, which is an 8-bit RISC architecture known for efficiency.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V, supporting a wide range of power supplies.
- Q: What is the maximum clock speed?
- A: The ATMEGA4809-MU runs at up to 20MHz, providing balanced performance.
- Q: How much memory does it have?
- A: It features 48KB Flash and 6KB RAM, offering generous resources for complex applications.
- Q: What package is available?
- A: It comes in a 48-VFQFN exposed pad package, providing many I/O pins.

ATMEGA4809-MU.pdf