industry news
Subscribe Now

Microchip Brings Enhanced Code Protection and up to 15W of Power Delivery to its USB Microcontroller Portfolio

AVR® DU Family enables embedded designers to easily implement USB functionality into a wider range of systems

CHANDLER, Ariz., April 9, 2024 — The well-known advantages of a Universal Serial Bus (USB) interface for embedded designs include its compatibility with various devices, streamlined communication protocol, in-field updatability and power delivery capabilities. To help easily incorporate this functionality into embedded systems, Microchip Technology (Nasdaq: MCHP) has launched the AVR® DU family of microcontrollers (MCUs). As the next generation of Microchip 8-bit MCUs to integrate USB connectivity, the AVR DU family is designed to provide enhanced security features and higher power delivery than previous iterations.

“USB is the standard communication protocol and power delivery method for electronic devices,” said Greg Robinson, corporate vice president of Microchip’s 8-bit MCU business unit. “Microchip’s AVR DU family combines the flexibility of our most advanced 8-bit MCUs with the versatility of enhanced power delivery to bring the benefits of USB to a wider range of embedded systems.”

AVR DU MCUs support power delivery of up to 15W from the USB interface, a capability not commonly found in other USB microcontrollers within its class. This feature enables USB-C® charging with currents up to 3A at 5V, making these MCUs an excellent choice for devices like portable power banks and rechargeable toys.

To strengthen its defense against malicious attacks, the AVR DU family incorporates Microchip’s Program and Debug Interface Disable (PDID) feature. When enabled, the enhanced code protection is designed to lock out access to the programming/debugging interface and block unauthorized attempts to read, modify or erase firmware. To enable secure firmware updates, the AVR DU family employs Read-While-Write (RWW) Flash and, when combined with a secure bootloader, designers can use the USB interface for patching bugs, addressing security concerns and adding new features without disrupting product operation. This updated functionality in the AVR DU MCUs is designed to allow for uninterrupted, in-field updates to help extend the lifetime value of products.

Additionally, the AVR DU family helps reduce overall design and Bill of Material (BOM) costs through a USB clock recovery feature, which eliminates the need for a costly external crystal. Core Independent Peripherals (CIPs) enable designers to incorporate main device functions and system management tasks onto a compact, single-chip solution, saving board space and reducing design effort.

Developers of a wide range of embedded designs, from fitness wearables and home appliances to agricultural and industrial applications, can benefit from incorporating the highly efficient AVR DU MCUs into their designs. A virtual demonstration of the AVR DU family is available at

Development Tools

MPLAB® Code Configurator (MCC) contains a software stack that supports hardware features for the AVR DU MCU’s USB module. Fully integrated into the MPLAB development tools system, the production-ready USB software stack is easily configured by MCC Melody, easing the development process and reducing time to market. To further enable rapid prototyping and development, a Curiosity Nano Development Board (EV59F82A), MPLAB X Integrated Development Environment (IDE) and MPLAB XC8 Compiler are also available to support the AVR DU family.

Pricing and Availability

For additional information and to purchase, contact a Microchip sales representative, authorized worldwide distributor or visit Microchip’s Purchasing and Client Services website,

About Microchip Technology:

Microchip Technology Inc. is a leading provider of smart, connected and secure embedded control solutions. Its easy-to-use development tools and comprehensive product portfolio enable customers to create optimal designs which reduce risk while lowering total system cost and time to market. The company’s solutions serve approximately 125,000 customers across the industrial, automotive, consumer, aerospace and defense, communications and computing markets. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality. For more information, visit the Microchip website at

Leave a Reply

featured blogs
May 8, 2024
Learn how artificial intelligence of things (AIoT) applications at the edge rely on TSMC's N12e manufacturing processes and specialized semiconductor IP.The post How Synopsys IP and TSMC’s N12e Process are Driving AIoT appeared first on Chip Design....
May 2, 2024
I'm envisioning what one of these pieces would look like on the wall of my office. It would look awesome!...

featured video

Introducing Altera® Agilex 5 FPGAs and SoCs

Sponsored by Intel

Learn about the Altera Agilex 5 FPGA Family for tomorrow’s edge intelligent applications.

To learn more about Agilex 5 visit: Agilex™ 5 FPGA and SoC FPGA Product Overview

featured paper

Achieve Greater Design Flexibility and Reduce Costs with Chiplets

Sponsored by Keysight

Chiplets are a new way to build a system-on-chips (SoCs) to improve yields and reduce costs. It partitions the chip into discrete elements and connects them with a standardized interface, enabling designers to meet performance, efficiency, power, size, and cost challenges in the 5 / 6G, artificial intelligence (AI), and virtual reality (VR) era. This white paper will discuss the shift to chiplet adoption and Keysight EDA's implementation of the communication standard (UCIe) into the Keysight Advanced Design System (ADS).

Dive into the technical details – download now.

featured chalk talk

Current Sense Shunts
Sponsored by Mouser Electronics and Bourns
In this episode of Chalk Talk, Amelia Dalton and Scott Carson from Bourns talk about the what, where and how of current sense shunts. They explore the benefits that current sense shunts bring to battery management and EV charging systems and investigate how Bourns is encouraging innovation in this arena.
Jan 23, 2024