ATMEGA8U2-MU

The ATMEGA8U2-MU is a high-performance, low-power 8-bit AVR microcontroller from Microchip Technology. It features 8KB of in-system self-programmable Flash memory, 512 bytes of SRAM, and 512 bytes of EEPROM. The device is built on an advanced RISC architecture with 125 instructions, most executed in a single clock cycle, achieving up to 16 MIPS throughput at 16 MHz.

This microcontroller integrates a USB 2.0 full-speed device module compliant with USB REV 2.0, supporting data transfer rates up to 12 Mbit/s. It includes 176 bytes of dedicated USB DPRAM for endpoint memory allocation. Peripheral features include one 8-bit and one 16-bit timer/counter providing up to 5 PWM channels, a USART with SPI master mode, a master/slave SPI interface, a programmable watchdog timer, and an on-chip analog comparator.

The ATMEGA8U2-MU operates from 2.7V to 5.5V and is specified for the industrial temperature range of -40°C to +85°C. It is available in a 32-VFQFN exposed pad package (32-VQFN 5x5 mm) for surface mount assembly. The device supports five sleep modes (Idle, Power-save, Power-down, Standby, Extended Standby) for optimized power consumption. On-chip debug interface (debugWIRE) and programming lock for software security are also included.