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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 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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA8U2-MUR is an 8-bit AVR microcontroller with a USB 2.0 full-speed interface, running at 16MHz. It offers 8KB flash and 512 bytes RAM in a 32-VFQFN package, designed for USB-enabled embedded applications.

  • Native USB: eliminates external USB controller ICs.
  • Wide voltage range: 2.7V-5.5V for flexible power design.
  • Compact QFN: 32-pin package for miniaturized products.
  • AVR core: efficient C code execution and rich ecosystem.

USB-to-Serial Bridges

Integrated USB controller and 8KB flash enable firmware-based UART bridging without external chips.

HID Devices

Low power and USB support make it ideal for custom keyboards, mice, and game controllers.

Bootloader Applications

Self-programming flash allows field firmware updates via USB.

Industrial Control Panels

5V operation and PWM outputs drive indicator LEDs and small relays.

Consumer Electronics

Compact 32-QFN package fits space-constrained IoT peripherals.

Data Loggers

512 bytes RAM and low sleep current support periodic sensor logging.

Q: What is the USB capability?
A: This MCU includes a USB 2.0 full-speed controller.
Q: What is the supply voltage?
A: 2.7V to 5.5V.
Q: What package is it?
A: 32-VFQFN Exposed Pad.
Q: What is the max clock speed?
A: 16MHz.
Q: Does it have PWM?
A: Yes, multiple PWM channels.
Base Product Number : ATMEGA8U2
16MHz 8-bit MCU ATMEGA AVR consumer electronics HID USB 2.0 VFQFN-32
Q: What is the USB capability?
A: This MCU includes a USB 2.0 full-speed controller.
Q: What is the supply voltage?
A: 2.7V to 5.5V.
Q: What package is it?
A: 32-VFQFN Exposed Pad.
Q: What is the max clock speed?
A: 16MHz.
Q: Does it have PWM?
A: Yes, multiple PWM channels.