The ATMEGA32U4-MU is a high performance, low power 8bit AVR RISC based microcontroller in 44 pin VQFN package. This device achieves throughputs approaching 1MIPS per MHz by executing powerful instructions in a single clock cycle. This allows system designer to optimize power consumption versus processing speed. The device has 32 general purpose working registers, four flexible timer/counters with compare modes and PWM, high speed timer/counter with compare modes and PLL adjustable source, 12 channels 10bit ADC with optional differential input stage, on-chip calibrated temperature sensor and programmable watchdog timer with internal oscillator.
• Maximum operating frequency of 16MHz
• 32KB of in-system self programmable flash
• 2.5KB internal SRAM
• JTAG (IEEE std 1149.1 compliant), USB 2.0, USART and SPI interfaces
• Operating voltage range from 2.7V to 5.5V
• 26 general purpose I/O lines
• Power-on reset and programmable brown out detection
• External and internal interrupt sources
• Internal 8MHz calibrated oscillator
• Operating temperature range from -40°C to 85°C
Технические параметры
| Серия | avr atmega |
| Ядро | avr |
| Ширина шины данных | 8-бит |
| Тактовая частота | 16 мгц |
| Количество входов/выходов | 26 |
| Объем памяти программ | 32 кбайт(16k x 16) |
| Тип памяти программ | flash |
| Объем EEPROM | 1k x 8 |
| Объем RAM | 2.5k x 8 |
| Наличие АЦП/ЦАП | ацп 12x10b |
| Встроенные интерфейсы | i2c, spi, uart, usb |
| Встроенная периферия | brown-outdetect/reset, por, pwm, wdt |
| Напряжение питания | 2.7…5.5 в |
| Рабочая температура | -40…+85c |
| Корпус | vfqfn-44 |
| Вес, г | 1.98 |



