規格
| 屬性 | 價值 |
| Package | Bulk |
| Series | AVR® ATmega |
| ProductStatus | Active |
| CoreProcessor | AVR |
| CoreSize | 8-Bit |
| Speed | 16MHz |
| Connectivity | I²C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| NumberofI/O | 26 |
| ProgramMemorySize | 32KB (16K x 16) |
| ProgramMemoryType | FLASH |
| EEPROMSize | 1K x 8 |
| RAMSize | 2.5K x 8 |
| Voltage-Supply(Vcc/Vdd) | 2.7V ~ 5.5V |
| DataConverters | A/D 12x10b |
| OscillatorType | Internal |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 44-TQFP |
概述
Description
The ATMEGA32U4-AU is an 8-bit microcontroller from Microchip Technology, part of the AVR family. It features a Harvard architecture and is based on the RISC (Reduced Instruction Set Computing) design, making it efficient in processing tasks. This microcontroller comes with 32KB of in-system programmable flash memory, 2.5KB of SRAM, and 1KB of EEPROM.
It is particularly notable for its built-in USB 2.0 full-speed functionality, enabling easy connection to USB devices, making it popular in applications like USB keyboards or game controllers. The ATMEGA32U4-AU operates at a voltage range of 2.7V to 5.5V and can run at a maximum clock frequency of 16MHz. It supports various communication interfaces, including UART, SPI, and I2C, and features 26 programmable I/O lines.
This microcontroller is also equipped with features like a 10-bit ADC, PWM outputs, and timers, making it versatile for various embedded applications. Its small TQFP-44 package makes it suitable for compact designs.
It is particularly notable for its built-in USB 2.0 full-speed functionality, enabling easy connection to USB devices, making it popular in applications like USB keyboards or game controllers. The ATMEGA32U4-AU operates at a voltage range of 2.7V to 5.5V and can run at a maximum clock frequency of 16MHz. It supports various communication interfaces, including UART, SPI, and I2C, and features 26 programmable I/O lines.
This microcontroller is also equipped with features like a 10-bit ADC, PWM outputs, and timers, making it versatile for various embedded applications. Its small TQFP-44 package makes it suitable for compact designs.
Equivalent
Equivalent products to the ATMEGA32U4-AU microcontroller include:
1. ATmega32U4-MU: Similar functionality in a different package.
2. ATmega16U4: Offers similar features with less memory.
3. ATmega32U2: Lower pin count and memory but similar USB capabilities.
4. PIC18F25K50: A Microchip alternative with USB support.
5. STM32F042K6: An ARM Cortex-M0 based microcontroller with USB support.
These alternatives may have varying specifications, so it's important to compare specific features for your application.
1. ATmega32U4-MU: Similar functionality in a different package.
2. ATmega16U4: Offers similar features with less memory.
3. ATmega32U2: Lower pin count and memory but similar USB capabilities.
4. PIC18F25K50: A Microchip alternative with USB support.
5. STM32F042K6: An ARM Cortex-M0 based microcontroller with USB support.
These alternatives may have varying specifications, so it's important to compare specific features for your application.
Features
The ATmega32U4-AU is a microcontroller from the AVR family by Microchip Technology, featuring:
1. Core: 8-bit AVR RISC architecture.
2. Memory:
- 32KB Flash memory
- 2.5KB SRAM
- 1KB EEPROM
3. Operating Frequency: Up to 16 MHz.
4. USB: Integrated full-speed USB 2.0 controller with embedded USB transceiver.
5. I/O Pins: 26 programmable I/O lines.
6. Timers/Counters:
- Four 8-bit timers
- One 16-bit timer
7. PWM Channels: 7 PWM channels.
8. ADC: 10-bit ADC with up to 12 channels.
9. Interfaces:
- I²C (TWI)
- SPI
- USART
10. Special Features:
- Watchdog timer
- Power-on reset
- Brown-out detection
- JTAG for on-chip debugging
11. Power:
- Operating voltage: 4.5V to 5.5V
- Low power consumption modes.
The ATmega32U4-AU is commonly used in USB-enabled applications, including keyboards, mice, and other peripheral devices.
1. Core: 8-bit AVR RISC architecture.
2. Memory:
- 32KB Flash memory
- 2.5KB SRAM
- 1KB EEPROM
3. Operating Frequency: Up to 16 MHz.
4. USB: Integrated full-speed USB 2.0 controller with embedded USB transceiver.
5. I/O Pins: 26 programmable I/O lines.
6. Timers/Counters:
- Four 8-bit timers
- One 16-bit timer
7. PWM Channels: 7 PWM channels.
8. ADC: 10-bit ADC with up to 12 channels.
9. Interfaces:
- I²C (TWI)
- SPI
- USART
10. Special Features:
- Watchdog timer
- Power-on reset
- Brown-out detection
- JTAG for on-chip debugging
11. Power:
- Operating voltage: 4.5V to 5.5V
- Low power consumption modes.
The ATmega32U4-AU is commonly used in USB-enabled applications, including keyboards, mice, and other peripheral devices.
Pinout
The ATMEGA32U4-AU is a microcontroller from the AVR family, featuring 44 pins in a TQFP (Thin Quad Flat Package). It is notable for its USB functionality, which allows direct communication with a computer.
Key functions and features include:
1. USB Communication: Integrated full-speed USB 2.0 interface, supporting USB device mode.
2. CPU: 8-bit AVR RISC architecture.
3. Memory: 32KB Flash memory, 2.5KB SRAM, and 1KB EEPROM.
4. I/O Ports: 26 general-purpose I/O pins.
5. Timers/Counters: Four timer/counters (1x 16-bit, 3x 8-bit).
6. PWM: Capable of generating PWM signals.
7. ADC: 12-channel 10-bit ADC.
8. Interfaces: Includes SPI, I2C (TWI), and UART/USART interfaces.
9. Clock: Operates up to 16 MHz.
10. Power Management: Various power-saving modes.
The ATMEGA32U4-AU is widely used in applications requiring USB communication, such as USB keyboards, mice, and other computer peripherals. Its versatile I/O and communication capabilities make it suitable for numerous embedded applications.
Key functions and features include:
1. USB Communication: Integrated full-speed USB 2.0 interface, supporting USB device mode.
2. CPU: 8-bit AVR RISC architecture.
3. Memory: 32KB Flash memory, 2.5KB SRAM, and 1KB EEPROM.
4. I/O Ports: 26 general-purpose I/O pins.
5. Timers/Counters: Four timer/counters (1x 16-bit, 3x 8-bit).
6. PWM: Capable of generating PWM signals.
7. ADC: 12-channel 10-bit ADC.
8. Interfaces: Includes SPI, I2C (TWI), and UART/USART interfaces.
9. Clock: Operates up to 16 MHz.
10. Power Management: Various power-saving modes.
The ATMEGA32U4-AU is widely used in applications requiring USB communication, such as USB keyboards, mice, and other computer peripherals. Its versatile I/O and communication capabilities make it suitable for numerous embedded applications.
Manufacturer
The ATMEGA32U4-AU is manufactured by Microchip Technology Inc. Microchip is an American semiconductor company that develops microcontrollers, memory, and analog devices for embedded control applications. They are known for producing a wide range of microcontrollers and other integrated circuits used in various applications, from consumer electronics to industrial systems. Microchip focuses on providing comprehensive solutions and support for embedded system designers, with products that are used in automotive, communication, computing, consumer, and industrial markets.
Application
The ATMEGA32U4-AU microcontroller is widely used in applications requiring USB connectivity, such as USB keyboards, mice, and game controllers. It's popular in DIY electronics and hobbyist projects, including Arduino boards like the Arduino Leonardo. The microcontroller is also utilized in embedded systems, data acquisition, and control systems due to its versatile I/O options. Additionally, it's suitable for low-power applications and portable devices, benefiting from its efficient power management features. Its integration of USB communication makes it ideal for applications needing direct computer interfacing without additional components.
Package
The ATMEGA32U4-AU comes in a TQFP (Thin Quad Flat Pack) package type with 44 pins.
