Microchip Technology ATmega328PB Xplained Mini (ATMEGA328PB-XMINI)

Microchip Technology ATmega328PB Xplained Mini (ATMEGA328PB-XMINI) is a demonstration and development platform for the ATmega328PB Microcontroller. The ATmega328PB is a low-power CMOS 8-bit microcontroller based on the AVR® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega328PB achieves throughputs close to 1MIPS per MHz. This empowers system designers to optimize the device for power consumption versus processing speed.

Microchip Technology ATmega328PB Xplained Mini (ATMEGA328PB-XMINI) includes a pre-installed ATmega328PB MCU, along with an onboard debugger. The ATMEGA328PB-XMINI offers access to all the signals on the target MCU, and features Arduino shield compatible footprints and Xplained Pro headers for adding extensions. Two capacitive touch buttons enable easy evaluation of the integrated QTouch Peripheral Touch Controller (PTC).


  • On-board debugger with full source-level debugging support in Microchip Studio
  • Auto-ID for board identification in Microchip Studio
  • Access to all signals on target MCU
  • One green mEDBG status LED
  • One yellow user LED
  • One mechanical user push button
  • QTouch® user area
  • Virtual COM port (CDC)
  • External target CLK 16MHz at 5V, 8MHz at 3.3V
  • USB powered
  • 3V3 regulator
  • Arduino shield compatible foot prints
  • Target SPI bus header foot print
  • Xplained Pro extension headers can easily be strapped in

Board Layout

Microchip Technology ATmega328PB Xplained Mini (ATMEGA328PB-XMINI)
Published: 2015-08-06 | Updated: 2022-03-11