規格
| 屬性 | 價值 |
| Package / Case | Bulk |
| Series | AVR® ATmega |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I²C, SPI, UART/USART, USB |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 26 |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2.5K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 12x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
The ATMEGA32U4-MUR is a microcontroller from Microchip Technology, known for its versatility in embedded applications. It integrates an 8-bit AVR RISC-based processor with 32KB of flash memory, 2.5KB of SRAM, and 1KB EEPROM, making it suitable for various projects requiring moderate memory capacity. One of its standout features is the built-in USB 2.0 Full-Speed/Low-Speed module, allowing direct connectivity to USB devices without needing additional components.
This microcontroller operates at a maximum clock speed of 16MHz and offers a rich set of peripherals, including I/O ports, timers, ADCs, PWM outputs, and serial communication interfaces like UART, SPI, and I2C. The "MUR" suffix indicates the package type, the QFN (Quad Flat No-Leads), which is compact and suitable for surface-mount technology (SMT) applications.
The ATMEGA32U4 is popular in DIY electronics, robotics, and prototyping projects, particularly in the maker community, due to its use in platforms like the Arduino Leonardo. Its integrated USB capability simplifies the process of creating USB-enabled devices.
This microcontroller operates at a maximum clock speed of 16MHz and offers a rich set of peripherals, including I/O ports, timers, ADCs, PWM outputs, and serial communication interfaces like UART, SPI, and I2C. The "MUR" suffix indicates the package type, the QFN (Quad Flat No-Leads), which is compact and suitable for surface-mount technology (SMT) applications.
The ATMEGA32U4 is popular in DIY electronics, robotics, and prototyping projects, particularly in the maker community, due to its use in platforms like the Arduino Leonardo. Its integrated USB capability simplifies the process of creating USB-enabled devices.
Equivalent
The ATmega32U4-MUR is a microcontroller with USB capability. Equivalent products include the ATmega16U4, ATmega32U2, and ATmega8U2, which are also from the AVR family with similar features but varying in memory and USB capabilities. Additionally, the Microchip PIC18F25K50 and NXP LPC1343 are alternatives that offer USB functionality, but they may require different development environments and have varied specifications.
Features
The ATMEGA32U4-MUR is a microcontroller from the AVR family, featuring an 8-bit RISC architecture. It includes a 32KB in-system programmable flash memory, 2.5KB SRAM, and 1KB EEPROM. The device operates at a maximum frequency of 16 MHz and is powered by a voltage range of 2.7V to 5.5V. It integrates a full-speed USB 2.0 controller, which facilitates direct USB connectivity, making it ideal for USB applications.
Key features include 26 programmable I/O lines, a 10-bit ADC with multiplexed channels, and various communication interfaces such as I2C, SPI, and UART. It supports power-saving modes and operates with enhanced power management capabilities. The microcontroller also includes built-in bootloader support for easy firmware updates.
The ATMEGA32U4-MUR comes in a compact QFN-44 package, making it suitable for space-constrained applications. It is widely used in projects requiring USB connectivity, like human interface devices (HID), due to its flexibility and robust peripheral set.
Key features include 26 programmable I/O lines, a 10-bit ADC with multiplexed channels, and various communication interfaces such as I2C, SPI, and UART. It supports power-saving modes and operates with enhanced power management capabilities. The microcontroller also includes built-in bootloader support for easy firmware updates.
The ATMEGA32U4-MUR comes in a compact QFN-44 package, making it suitable for space-constrained applications. It is widely used in projects requiring USB connectivity, like human interface devices (HID), due to its flexibility and robust peripheral set.
Pinout
The ATmega32U4-MUR is a microcontroller from the AVR family by Microchip Technology. It comes in a 44-pin package when dealing with the MUR variant. The pin functions for the ATmega32U4 include:
1. Power Supply: VCC, GND, AVCC, and UVCC for power and ground connections.
2. Oscillator: XTAL1 and XTAL2 for external clock input.
3. USB Interface: D- and D+ for USB data lines.
4. GPIO: General-purpose input/output pins that can also serve as various functions like PWM, ADC inputs, and more.
5. Communication Interfaces:
- SPI: MISO, MOSI, SCK, SS for Serial Peripheral Interface.
- I2C: SDA, SCL for Two Wire Interface.
- UART: TXD, RXD for serial communication.
6. Analog: ADC inputs for analog-to-digital conversion.
7. PWM: Output for pulse-width modulation.
8. Other: RESET, AREF for reference voltage, and other specialized functions including Timer/Counter, interrupts, etc.
This setup makes the ATmega32U4 versatile for various applications, especially those requiring USB connectivity.
1. Power Supply: VCC, GND, AVCC, and UVCC for power and ground connections.
2. Oscillator: XTAL1 and XTAL2 for external clock input.
3. USB Interface: D- and D+ for USB data lines.
4. GPIO: General-purpose input/output pins that can also serve as various functions like PWM, ADC inputs, and more.
5. Communication Interfaces:
- SPI: MISO, MOSI, SCK, SS for Serial Peripheral Interface.
- I2C: SDA, SCL for Two Wire Interface.
- UART: TXD, RXD for serial communication.
6. Analog: ADC inputs for analog-to-digital conversion.
7. PWM: Output for pulse-width modulation.
8. Other: RESET, AREF for reference voltage, and other specialized functions including Timer/Counter, interrupts, etc.
This setup makes the ATmega32U4 versatile for various applications, especially those requiring USB connectivity.
Manufacturer
The ATMEGA32U4-MUR is manufactured by Microchip Technology Inc. Microchip is a publicly traded American company that specializes in the production of microcontroller, mixed-signal, analog, and Flash-IP integrated circuits. They serve a diverse range of applications in the consumer, automotive, industrial, and computing markets. Known for their focus on providing comprehensive semiconductor solutions, Microchip offers development tools and support to aid engineers in the design process.
Application
The ATMEGA32U4-MUR is a versatile microcontroller commonly used in applications such as USB devices, human interface devices (HIDs) like keyboards and mice, and embedded systems. Its built-in USB communication capabilities make it ideal for projects requiring direct USB connectivity without additional components. It is also popular in hobbyist and DIY electronics for developing prototypes and custom projects due to its compatibility with Arduino, specifically the Arduino Leonardo. Additionally, it finds applications in consumer electronics, industrial control systems, and medical devices, where reliable and efficient USB communication is required. Its low power consumption and rich set of peripherals make it suitable for battery-powered devices and portable applications.
Package
The ATMEGA32U4-MUR is a 32-pin microcontroller packaged in a QFN (Quad Flat No-leads) form, specifically the 32-QFN package. This surface-mount package type is designed to offer a compact profile with good thermal performance and electrical characteristics, suitable for high-density PCB designs.
