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ATMEGA32U4-MUR
+BOMIC MCU 8BIT 32KB FLASH 44VQFN
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ManufacturerAtmel
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Mfr. Part #ATMEGA32U4-MUR
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Datasheet ATMEGA32U4-MUR DataSheet
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Package VQFN-44
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In Stock2797
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Specifications
| Attribute | Value |
| 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-VFQFN Exposed Pad |
Overview
Description
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
Features
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
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.