規格
| 屬性 | 價值 |
| Package | Tray |
| 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-VFQFN Exposed Pad |
概述
Description
The ATmega32U4-MU is a low-power, 8-bit AVR microcontroller from Microchip, featuring a built-in USB 2.0 controller, making it ideal for USB-enabled applications like keyboards, mice, and custom HID devices.
### Key Features:
- Core: 8-bit AVR, 16 MHz max clock speed
- Memory: 32KB Flash, 2.5KB SRAM, 1KB EEPROM
- USB 2.0 Full-Speed: Built-in PHY, no external components needed
- I/O: 26 programmable pins, including ADC, PWM, UART, SPI, I²C
- Packaging: 44-pad QFN (MLF) for compact designs
- Low Power: Multiple sleep modes for energy efficiency
### Applications:
- USB peripherals (keyboards, game controllers)
- Embedded systems requiring USB connectivity
- DIY projects (Arduino Leonardo-compatible)
Its integrated USB support simplifies development, reducing external components. Ideal for compact, cost-sensitive designs.
### Key Features:
- Core: 8-bit AVR, 16 MHz max clock speed
- Memory: 32KB Flash, 2.5KB SRAM, 1KB EEPROM
- USB 2.0 Full-Speed: Built-in PHY, no external components needed
- I/O: 26 programmable pins, including ADC, PWM, UART, SPI, I²C
- Packaging: 44-pad QFN (MLF) for compact designs
- Low Power: Multiple sleep modes for energy efficiency
### Applications:
- USB peripherals (keyboards, game controllers)
- Embedded systems requiring USB connectivity
- DIY projects (Arduino Leonardo-compatible)
Its integrated USB support simplifies development, reducing external components. Ideal for compact, cost-sensitive designs.
Equivalent
Equivalent products to the ATMEGA32U4-MU include:
- ATMEGA32U4-AU (TQFP package, industrial temp range).
- ATMEGA16U4-MU (similar but with half the flash).
- AT90USB1286 (more flash/RAM, compatible but larger).
- STM32F103 (ARM-based alternative, requires firmware changes).
- PIC18F4550 (Microchip alternative, different architecture).
These offer similar USB functionality or pin compatibility but may require adjustments in design or code.
- ATMEGA32U4-AU (TQFP package, industrial temp range).
- ATMEGA16U4-MU (similar but with half the flash).
- AT90USB1286 (more flash/RAM, compatible but larger).
- STM32F103 (ARM-based alternative, requires firmware changes).
- PIC18F4550 (Microchip alternative, different architecture).
These offer similar USB functionality or pin compatibility but may require adjustments in design or code.
Pinout
The ATMEGA32U4-MU is a 44-pin QFN microcontroller with the following key functions:
- GPIO: 26 programmable I/O pins.
- USB 2.0: Built-in full-speed USB controller (no external PHY needed).
- ADC: 10-bit, 12-channel ADC.
- Timers: Four 8/16-bit timers with PWM.
- Communication: UART, SPI, and I²C interfaces.
- Flash: 32KB, SRAM: 2.5KB, EEPROM: 1KB.
- Clock: 8MHz internal (16MHz with external crystal).
Commonly used in USB devices (e.g., keyboards). Pins include power (VCC, GND), analog/digital I/O, and dedicated USB (D+, D−).
- GPIO: 26 programmable I/O pins.
- USB 2.0: Built-in full-speed USB controller (no external PHY needed).
- ADC: 10-bit, 12-channel ADC.
- Timers: Four 8/16-bit timers with PWM.
- Communication: UART, SPI, and I²C interfaces.
- Flash: 32KB, SRAM: 2.5KB, EEPROM: 1KB.
- Clock: 8MHz internal (16MHz with external crystal).
Commonly used in USB devices (e.g., keyboards). Pins include power (VCC, GND), analog/digital I/O, and dedicated USB (D+, D−).
Manufacturer
The ATMEGA32U4-MU is manufactured by Microchip Technology, a leading American semiconductor company known for its microcontrollers, analog, and Flash-IP solutions. Microchip acquired Atmel, the original developer of the ATmega series, in 2016.
The company specializes in embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. Microchip is recognized for its reliable, low-power, and high-performance microcontrollers, including the popular AVR (ATmega) and PIC families.
The ATMEGA32U4-MU is an 8-bit AVR microcontroller with built-in USB functionality, commonly used in devices like keyboards (e.g., Arduino Leonardo) and other USB peripherals.
The company specializes in embedded control systems, serving industries like automotive, industrial, consumer electronics, and IoT. Microchip is recognized for its reliable, low-power, and high-performance microcontrollers, including the popular AVR (ATmega) and PIC families.
The ATMEGA32U4-MU is an 8-bit AVR microcontroller with built-in USB functionality, commonly used in devices like keyboards (e.g., Arduino Leonardo) and other USB peripherals.
Application
The ATmega32U4-MU is widely used in:
1. Embedded Systems – Custom control applications.
2. USB Devices – Keyboards, mice, and game controllers (e.g., Arduino Leonardo).
3. IoT & Wearables – Low-power sensor nodes.
4. Robotics – Motor control and automation.
5. DIY Electronics – Prototyping with USB connectivity.
Its built-in USB interface and 8-bit AVR architecture make it ideal for compact, cost-effective designs requiring direct USB communication.
1. Embedded Systems – Custom control applications.
2. USB Devices – Keyboards, mice, and game controllers (e.g., Arduino Leonardo).
3. IoT & Wearables – Low-power sensor nodes.
4. Robotics – Motor control and automation.
5. DIY Electronics – Prototyping with USB connectivity.
Its built-in USB interface and 8-bit AVR architecture make it ideal for compact, cost-effective designs requiring direct USB communication.
Package
The ATMEGA32U4-MU comes in a QFN-44 package. This is a 44-pad Quad Flat No-Lead (QFN) package with a compact 7x7mm footprint. It features an exposed thermal pad for improved heat dissipation and is surface-mountable, making it suitable for space-constrained applications like USB devices. The "MU" suffix indicates the QFN variant.
