Atmel ATMEGA8U2-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $13.20 | $13.20 |
| 15+ | $2.96 | $44.40 |
| 25+ | $2.90 | $72.50 |
| 50+ | $2.74 | $137.00 |
| 100+ | $2.42 | $242.00 |
| N+ | $0.48 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Atmel |
| Product Series | AVR® ATmega |
| Packaging | Bulk | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 22 |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | - |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-VQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |  |
The ATMEGA8U2-MU from Atmel is a high-performance 8-bit AVR microcontroller featuring 8KB flash memory and 512 bytes of RAM. It operates at up to 16MHz with a supply voltage range of 2.7V to 5.5V. This MCU integrates a full-speed USB 2.0 controller, making it a cost-effective solution for USB-based embedded applications. The 32-VFQFN package is space-efficient, and the device includes essential peripherals like PWM, WDT, and brown-out detection for robust operation in industrial and consumer products.
- Integrated USB Controller: Eliminates the need for external USB interface chips, reducing BOM cost and board space.
- Wide Voltage Range (2.7V-5.5V): Provides design flexibility for both 3.3V and 5V logic systems, simplifying power supply design.
- Compact 32-VFQFN Package: Suitable for space-constrained applications while offering exposed pad for better thermal performance.
- Robust Protection Features: Includes Brown-out Detect/Reset, POR, and WDT to ensure reliable operation in unstable power environments.
USB-to-Serial Bridge
With its integrated USB controller and 16MHz AVR core, the ATMEGA8U2-MU is ideal for USB-to-UART bridges in development boards and industrial programmers.
Low-Cost HID Devices
The 8KB flash and 512 bytes of RAM are sufficient for custom Human Interface Devices like keyboards, mice, and game controllers, leveraging the built-in USB support.
Battery-Powered Peripherals
Operating from 2.7V to 5.5V allows direct battery connection (e.g., 3V coin cells or 5V USB) without complex regulation, extending battery life in portable accessories.
Industrial Sensor Interfaces
The PWM outputs and WDT ensure reliable pulse generation and system recovery in noisy industrial environments, while the -40°C to 85°C range supports harsh conditions.
Bootloader-Enabled Firmware Updates
The 8KB flash supports a custom bootloader, enabling field firmware updates over USB without external programmers, reducing service costs.
LED Lighting Controllers
Multiple PWM channels can drive LED strings with precise dimming, while the small VFQFN package fits into compact lighting modules.
- Q: What is the operating voltage range of the ATMEGA8U2-MU?
- A: The ATMEGA8U2-MU operates from 2.7V to 5.5V, making it suitable for both 3.3V and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 16MHz, providing a balanced performance for USB and general embedded tasks.
- Q: How much flash memory does it have?
- A: It includes 8KB of in-system programmable flash memory (4K x 16 bits).
- Q: What package is available?
- A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs.
- Q: Does it have a watchdog timer?
- A: Yes, it features a Watchdog Timer (WDT) along with POR, PWM, and Brown-out detection.
ATMEGA8U2-MU.pdf
- Q: What is the operating voltage range of the ATMEGA8U2-MU?
- A: The ATMEGA8U2-MU operates from 2.7V to 5.5V, making it suitable for both 3.3V and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 16MHz, providing a balanced performance for USB and general embedded tasks.
- Q: How much flash memory does it have?
- A: It includes 8KB of in-system programmable flash memory (4K x 16 bits).
- Q: What package is available?
- A: It comes in a 32-VFQFN exposed pad package, ideal for compact PCB designs.
- Q: Does it have a watchdog timer?
- A: Yes, it features a Watchdog Timer (WDT) along with POR, PWM, and Brown-out detection.
