ATMEGA32U4-AU

The ATMEGA32U4-AU is a microcontroller chip manufactured by Microchip Technology. It is part of the AVR family of microcontrollers and features 32KB of flash memory, 2.5KB of SRAM, and 1KB of EEPROM.

The “AU” in the part number refers to the package type, which is a TQFP (Thin Quad Flat Package) with 44 pins. This package type is commonly used for surface mount applications.

The ATMEGA32U4-AU is known for its built-in USB 2.0 controller, which allows it to act as a USB device. This feature makes it suitable for various applications that require USB connectivity, such as USB keyboards, mice, game controllers, MIDI devices, and more.

Furthermore, the ATMEGA32U4-AU offers a wide range of peripherals, including UART, SPI, I2C, timers, analog-to-digital converters (ADCs), and digital-to-analog converters (DACs). These peripherals make it versatile and suitable for a variety of projects.

Overall, the ATMEGA32U4-AU is a popular choice for hobbyists, makers, and professionals due to its USB capabilities, ample memory, and versatile peripherals.