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| Core Processor | AVR |
| Program Memory Type | FLASH |
| Online Catalog | AVR® ATmega 32KB Flash |
| Supplier Device Package | 44-QFN (7x7) |
| PCN Design/Specification | Copper Bonding Wire 19/Dec/2014 |
| EEPROM Size | 1K x 8 |
| Package / Case | 44-VFQFN Exposed Pad |
| PCN Packaging | Tape and Reel Label Update 10/Feb/2015 Transfer to Microchip/Label/Pkg 5/Sep/2016 |
| Video File | Introducing Atmel Studio 7 |
| Manufacturer | Microchip Technology |
| Design Resources | Development Tool Selector |
| Voltage - Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V |
| Other Names | ATMEGA32U4-MURDKR |
| Speed | 16MHz |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Datasheets | ATmega16U4,32U4 Datasheet ATmega16U4,32U4 Datasheet Summary USB DFU Bootloader Datasheet |
| Categories | Integrated Circuits (ICs) |
| RAM Size | 2.5K x 8 |
| PCN Other | MSL Update 26/Feb/2014 |
| Number of I/O | 26 |
| Product Training Modules | MCU Product Line Introduction megaAVR Introduction Software Framework (ASF) Example of Use Studio Introduction to Software Framework (ASF) Studio Development Environment Overview Part 1 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| EDA / CAD Models | Download from Accelerated Designs |
| Oscillator Type | Internal |
| Standard Package | 1 |
| Series | AVR® ATmega |
| Core Size | 8-Bit |
| Featured Product | Atmel - megaAVR Microcontrollers PIC and AVR MCUs |
| Packaging | Digi-Reel® |
| Part Status | Active |
| Connectivity | I²C, SPI, UART/USART, USB |
| Program Memory Size | 32KB (16K x 16) |
| Mfg Application Notes | ATMEGA32(16)U4 App Note |
| Data Converters | A/D 12x10b |
