Atmel ATMEGA32U4-AUR SMD IC

Microchip ATmega32U4 – 8-Bit AVR USB Microcontroller (TQFP-44)
The ATmega32U4 from Microchip Technology is a high-performance 8-bit AVR microcontroller designed for embedded systems, USB-enabled applications, robotics, automation, and advanced DIY electronics projects. Built on the AVR megaAVR architecture, this microcontroller combines integrated USB functionality, multiple communication interfaces, ADC channels, timers, and reliable Flash memory into a compact TQFP-44 package. Its low-power operation and extensive peripheral support make it ideal for modern embedded development.

Why it’s a System Essential:
• Integrated USB Support: Native USB interface simplifies USB device development without external controllers.
• High-Performance AVR Core: Efficient 8-bit AVR architecture optimized for embedded applications.
• Rich Peripheral Integration: Multiple timers, ADC channels, and communication interfaces support advanced system designs.
• Compact TQFP-44 Package: Suitable for compact PCB layouts and professional embedded products.
• Wide Operating Voltage Range: Operates from 2.7V to 5.5V for flexible power compatibility.
• Reliable Non-Volatile Memory: Integrated Flash and EEPROM support long-term firmware and data storage.
• Industrial Operating Temperature Range: Reliable operation from -40°C to +85°C.

Technical Specifications:
• Manufacturer: Microchip Technology
• Product Category: 8-Bit Microcontrollers – MC
• Series: ATmega32U4
• Core: AVR
• Processor Series: megaAVR
• Mounting Style: SMD / SMT
• Package / Case: TQFP-44
• Data Bus Width: 8-bit
• Maximum Clock Frequency: 16MHz

Memory Features:
• Program Memory Size: 32KB Flash
• Data RAM Size: 2.5KB SRAM
• Data ROM Size: 1KB EEPROM
• Program Memory Type: Flash
• Data RAM Type: SRAM
• Data ROM Type: EEPROM

Peripheral Features:
• Number of ADC Channels: 12
• ADC Resolution: 10-Bit
• Number of Timers/Counters: 4 Timers
• Number of I/Os: 26 I/O Pins

Communication Interfaces:
• JTAG
• SPI
• TWI (I2C Compatible)
• USART
• USB

Electrical & Environmental Specifications:
• Operating Supply Voltage: 2.7V to 5.5V
• Minimum Operating Temperature: -40°C
• Maximum Operating Temperature: +85°C
• Unit Weight: 273.300mg

Features:
• Native USB communication support
• Efficient AVR embedded processing
• Rich communication interface options
• Compact surface-mount package
• Reliable industrial temperature operation
• Suitable for advanced embedded development

Applications:
• USB-enabled embedded systems
• Arduino-compatible development boards
• Robotics and automation systems
• Human Interface Devices (HID)
• IoT devices and smart electronics
• Sensor interfacing and control systems
• Industrial embedded applications
• DIY electronics and prototyping

Best For:
Ideal for students, hobbyists, makers, engineers, and embedded developers working on USB-enabled projects, robotics, automation systems, IoT devices, HID applications, communication systems, and advanced AVR-based embedded electronics requiring compact and feature-rich microcontroller performance.