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AVR16DU28

MCHPAVR16DU28

MPN: AVR16DU28-I/STX
Microchip Technology
8-bit Microcontrollers - MCU 16KB, 2KB SRAM, 24MHz, USB, 10b ADC, 2xUART, SPI, TWI
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Overview

AVR16DU28-I/STX is a Microchip AVR 8-bit microcontroller with 16 KB of Flash, 2 KB of SRAM, and integrated USB support. It is aimed at compact embedded designs that need a simple MCU, mixed-signal peripherals, and enough I/O for small control and connectivity tasks.

Why Choose This Part

This part combines a small memory footprint with a useful set of on-chip peripherals, which helps keep BOM size and firmware complexity down. For simple embedded products, having USB, ADC, UART, SPI, and TWI in one MCU reduces the need for external glue logic and extra interface chips. The 8-bit AVR architecture is also familiar to many engineers and hobbyists, which can shorten bring-up time.

Applications

USB peripherals and bridges
Use the integrated USB capability for simple device-side interfaces, such as control panels, adapters, or custom peripherals.
Small embedded control systems
A good fit for compact firmware that reads sensors, drives outputs, and handles basic state machines.
Mixed-signal interfacing
The 10-bit ADC and serial interfaces make it useful for reading analog signals and talking to external devices.
Prototype and education projects
Well suited for learning embedded development or building breadboard-friendly control prototypes with a modest feature set.
UART, SPI, and TWI based peripherals
Can serve as the controller in designs that need multiple common serial interfaces for sensors, displays, and companion ICs.

Getting Started

Start with Microchip's AVR toolchain and an IDE such as MPLAB X, then use a supported programmer/debugger from the AVR ecosystem for in-circuit programming and debug. A development board or breakout that exposes the device pins will make it easier to validate USB, serial, and ADC behavior before moving to a custom PCB. Check the device datasheet and reference materials for the exact pinout, clocking, and USB hardware requirements before laying out the board.

Part of AVR DA/DB/DD/DU family » AVR16DU

AVR16DU Family

Part NumberDifferenceStock
AVR16DU28-I/SS S 591
AVR16DU20-I/REB 0-I/REB 436
AVR16DU32-I/RXB 32-I/RXB 445

Also Consider

AVR32DU28 MCHPMicrochip Technology - A middle-capacity alternative in the same family for designs that want more Flash without changing the overall device class.