| Specifications | |
| Attribute | Value |
| Manufacturer: | Microchip |
| Product Category: | 8-bit Microcontrollers – MCU |
| RoHS: | Details |
| Series: | ATmega32U4 |
| Mounting Style: | SMD/SMT |
| Package / Case: | QFN-44 |
| Core: | AVR |
| Program Memory Size: | 32 kB |
| Data Bus Width: | 8 bit |
| ADC Resolution: | 10 bit |
| Maximum Clock Frequency: | 16 MHz |
| Number of I/Os: | 26 I/O |
| Data RAM Size: | 2.5 kB |
| Operating Supply Voltage: | 2.7 V to 5.5 V |
| Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 85 C |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Packaging: | Reel |
| Product: | MCU |
| Brand: | Microchip Technology / Atmel |
| Moisture Sensitive: | Yes |
| Processor Series: | megaAVR |
| Product Type: | 8-bit Microcontrollers – MCU |
| Factory Pack Quantity: | 4000 |
| Subcategory: | Microcontrollers – MCU |
| Tradename: | AVR |
| Unit Weight: | 0.013051 oz |