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AVR32DU20-I/REB

MCHPAVR32DU20-I/REB

Microchip Technology
8-bit Microcontrollers - MCU 32KB, 4KB SRAM, 24MHz, USB, 10b ADC, 2xUART, SPI, TWI
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Overview

The AVR32DU20-I/REB is a high-performance 8-bit microcontroller from Microchip's AVR DU family, featuring 32KB of Flash and a built-in USB 2.0 full-speed interface. Operating at up to 24MHz, this MCU integrates core independent peripherals (CIPs) to reduce CPU overhead and power consumption in space-constrained designs.

Why Choose This Part

This MCU eliminates the need for an external crystal for USB operation through its internal high-accuracy oscillator, saving PCB space and reducing BOM cost. The inclusion of Core Independent Peripherals allows for complex timing and logic tasks to be performed while the CPU remains in low-power sleep modes.

Applications

USB Peripheral Conversion
Acts as a cost-effective bridge for converting legacy UART or SPI sensors into USB-compliant HID or CDC devices.
Battery-Powered HID Devices
Low-power operation and integrated USB support make it suitable for wireless mouse dongles and custom mechanical keyboards.
Industrial Status Monitoring
Uses the 10-bit ADC and TWI interfaces to log system health data for retrieval over a standardized USB interface.
Secure Hardware Tokens
Small footprint and USB connectivity allow for the implementation of basic security keys or authentication dongles.

Getting Started

Engineers can begin development using the MPLAB X IDE or Microchip Studio, utilizing the XC8 compiler for C programming. The AVR-DU family is supported by the Curiosity Nano evaluation platform and can be programmed via the integrated USB bootloader or a standard UPDI programmer.

Part of AVR DA/DB/DD/DU family » AVR32DU

AVR32DU Family

Part NumberDifferenceStock
AVR32DU32-I/PT 32-I/PT 763
AVR32DU28-I/STX 8-I/STX 602
AVR32DU14-I/SL 14-I/SL 753
AVR32DU28-I/SS 8-I/SS 484

Also Consider

ATSAMD21E18A MCHPMicrochip Technology - A SAM D series part offering a more powerful 32-bit processor while maintaining a similar integrated USB peripheral set.