Microchip Technology has launched the AVR® DU family of microcontrollers (MCUs) to easily incorporate the advantages of USB into a wide range of embedded systems.
The Universal Serial Bus (USB) interface offers compatibility with various devices, streamlined communication protocol, in-field updatability and power delivery capabilities. 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.
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 defence 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 block unauthorised attempts to read, modify or erase firmware, while allowing for secure, uninterrupted, in-field updates.
The AVR DU family helps reduce overall design and Bill of Material (BOM) costs through a USB clock recovery feature, eliminating 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.