ATMEGA32U4-AU
The ATMEGA32U4-AU is housed in a 44-pin TQFP package, providing a compact and versatile solution for electronic projects
Inventory:7,624
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Part Number : ATMEGA32U4-AU
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Package/Case : TQFP-44
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Manufacturer : MICROCHIP
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Components Classification : Microcontrollers
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Datesheet : ATMEGA32U4-AU DataSheet (PDF)
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Series : ATMEGA32
Overview of ATMEGA32U4-AU
The ATMEGA32U4-AU is a microcontroller optimized for high-speed data processing, multi-channel analog-to-digital conversion capabilities, and precise timing and synchronization features. It provides excellent performance for various industrial applications, including robotics, automation, and IoT systems.
Pinout
The ATMEGA32U4-AU pinout refers to the configuration and function of each pin in its 44-TQFP package. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the ATMEGA32U4-AU has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by Microchip Technology to get accurate information regarding each pin's function and electrical characteristics.
Features
- This chip supports various communication protocols: The ATMEGA32U4-AU supports multiple communication protocols, enabling seamless data transfer between devices.
- Faster transmission rates with lower latency: This microcontroller offers faster transmission rates and lower latency, making it ideal for real-time applications.
- Multi-channel analog-to-digital conversion capabilities: The ATMEGA32U4-AU features multi-channel analog-to-digital conversion capabilities, allowing for precise data acquisition and control.
- Precise timing and synchronization features: This microcontroller provides precise timing and synchronization features, ensuring accurate clocking and event handling.
- High-speed data processing and analysis: The ATMEGA32U4-AU is designed for high-speed data processing and analysis, making it suitable for various applications such as robotics, automation, and IoT systems.
- Rapid prototyping for IoT and embedded systems: This microcontroller enables rapid prototyping for IoT and embedded systems, streamlining the development process.
Applications
- Consumer electronics: The ATMEGA32U4-AU is suitable for various consumer electronics applications, including smart home devices and wearables.
- Robotics and automation: This microcontroller is ideal for robotics and automation applications that require high-speed data processing and precise timing.
- IoT systems: The ATMEGA32U4-AU is suitable for IoT systems that require secure communication protocols, low power consumption, and high-speed data processing.
- Industrial control systems: This microcontroller is designed for industrial control systems that require precise timing, synchronization, and high-speed data processing.
Advantages and Disadvantages
Advantages
- High-speed data processing: The ATMEGA32U4-AU offers high-speed data processing capabilities, making it suitable for real-time applications.
- Precise timing and synchronization: This microcontroller provides precise timing and synchronization features, ensuring accurate clocking and event handling.
- Multi-channel analog-to-digital conversion: The ATMEGA32U4-AU features multi-channel analog-to-digital conversion capabilities, allowing for precise data acquisition and control.
- Rapid prototyping: This microcontroller enables rapid prototyping for IoT and embedded systems, streamlining the development process.
Disadvantages
- Complexity: The ATMEGA32U4-AU is a complex microcontroller that may require significant programming expertise to fully utilize its features.
- Power consumption: This microcontroller requires a significant amount of power, which may be a concern for battery-powered devices or applications with limited power resources.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category | 8-bit Microcontrollers - MCU | RoHS | Details |
Core | AVR | Program Memory Size | 32 kB |
Data RAM Size | 2.5 kB | Package / Case | TQFP-44 |
Maximum Clock Frequency | 16 MHz | ADC Resolution | 10 bit |
Number of I/Os | 26 I/O | Supply Voltage - Min | 2.7 V |
Supply Voltage - Max | 5.5 V | Mounting Style | SMD/SMT |
Data Bus Width | 8 bit | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature | + 85 C | Series | ATmega32U4 |
Brand | Microchip Technology | Data RAM Type | SRAM |
Data ROM Size | 1 kB | Data ROM Type | EEPROM |
Height | 1.05 mm | Interface Type | JTAG, SPI, TWI, USART, USB |
Length | 10 mm | Moisture Sensitive | Yes |
Number of ADC Channels | 12 Channel | Number of Timers/Counters | 5 Timer |
Processor Series | megaAVR | Product | MCUs |
Product Type | 8-bit Microcontrollers - MCU | Program Memory Type | Flash |
Factory Pack Quantity | 160 | Subcategory | Microcontrollers - MCU |
Tradename | AVR | Width | 10 mm |
Unit Weight | 0.017637 oz |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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ATMEGA32U4-AU
The ATMEGA32U4-AU is housed in a 44-pin TQFP package, providing a compact and versatile solution for electronic projects
Inventory:
7,624
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




