Overview
The ATMEGA32U4-AUR is a low-power CMOS 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture. This microcontroller is known for its high performance and power efficiency, making it suitable for a wide range of embedded system applications. It features a robust set of peripherals and communication interfaces, including USB, which enhances its versatility in various projects.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | ATMEGA32U4-AUR |
| Manufacturer | Microchip Technology |
| Description | 8-bit Microcontroller with 32KB ISP Flash and USB Controller |
| Package / Case | 44-TQFP |
| Number of Pins | 44 |
| Supply Voltage | 2.7V ~ 5.5V |
| Frequency | 16 MHz |
| Memory Size | 32 KB Flash, 2.5 KB SRAM |
| EEPROM Size | 1 KB x 8 |
| Interface | I2C, I2S, SPI, UART, USART, USB |
| Number of I/Os | 26 |
| Operating Temperature | -40°C ~ 85°C |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
Key Features
- Complies fully with Universal Serial Bus Specification Rev. 2.0, supporting data transfer rates up to 12 Mbit/s and 1.5 Mbit/s.
- Six programmable endpoints with in or out directions and with bulk, interrupt, or isochronous transfers.
- Configurable endpoint size up to 256 bytes in double bank mode.
- Fully independent 832 bytes USB DPRAM for endpoint memory allocation.
- Suspend/Resume Interrupts and CPU Reset possible on USB Bus Reset detection.
- 48 MHz from PLL for Full-Speed Bus Operation and crystal-less operation for Low-Speed mode.
- Supports I2C, I2S, SPI, UART, and USART interfaces.
- Includes 12x10-bit ADC, 8 PWM channels, and 1 I2C channel.
- Low power consumption with efficient RISC architecture.
Applications
- Embedded systems requiring USB connectivity, such as USB peripherals and human interface devices (HID).
- DIY projects, including custom keyboards and other interactive devices.
- Industrial automation and control systems.
- Consumer electronics, such as gaming controllers and other USB-enabled devices.
- Automotive applications where robust and reliable microcontrollers are necessary.
Q & A
- What is the ATMEGA32U4-AUR microcontroller?
The ATMEGA32U4-AUR is a low-power CMOS 8-bit microcontroller from Microchip Technology, based on the AVR enhanced RISC architecture.
- What are the key interfaces supported by the ATMEGA32U4-AUR?
The microcontroller supports I2C, I2S, SPI, UART, USART, and USB interfaces.
- What is the memory configuration of the ATMEGA32U4-AUR?
The microcontroller has 32 KB of ISP Flash, 2.5 KB of SRAM, and 1 KB of EEPROM.
- What are the operating voltage and temperature ranges of the ATMEGA32U4-AUR?
The operating voltage range is 2.7V to 5.5V, and the operating temperature range is -40°C to 85°C.
- How many I/O pins does the ATMEGA32U4-AUR have?
The microcontroller has 26 I/O pins.
- What are some common applications of the ATMEGA32U4-AUR?
Common applications include embedded systems, DIY projects, industrial automation, consumer electronics, and automotive systems.
- Does the ATMEGA32U4-AUR support USB?
Yes, it fully complies with Universal Serial Bus Specification Rev. 2.0 and supports various USB transfer modes.
- What is the clock speed of the ATMEGA32U4-AUR?
The microcontroller operates at a clock speed of 16 MHz.
- Is the ATMEGA32U4-AUR RoHS compliant?
Yes, the ATMEGA32U4-AUR is RoHS3 compliant and lead-free.
- Where can I find more detailed specifications and datasheets for the ATMEGA32U4-AUR?
You can find detailed specifications and datasheets on the official Microchip Technology website or through other reliable component databases like Utmel or Alldatasheet.
