Order No.: crumbx128a1-1.0
Availability: on stock

Price:  39.95 EUR

incl. VAT excl. shipping

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Atmel AVR ATxmega128A1 microcontroller module with USB UART, RS485, micro-sd-card, voltage regulator.

CrumbX128A1 AVR Xmega Module

CrumbX128A1 - Atmel AVR ATxmega128A1 microcontroller module with USB UART, RS485, micro-sd-card, voltage regulator.CrumbX128A1 - Atmel AVR ATxmega128A1 microcontroller module with USB UART, RS485, micro-sd-card, voltage regulator.


CrumbX128A1 V1.0 is a versatile and very compact/small (just 60x30mm size!) microcontroller module with the ATxmega128A1 microcontroller, 3.3V LDO voltage regulator, CP2102 USB UART converter, RS485 transceiver and a micro-sd-card header/slot. All microcontroller signals are available on pin headers. A selectable XTAL crystal is included.

The module is shipped without preassembled pin headers, since everybody has different preferences or requirements. A Connector Kit with a suitable set of pin headers and receptacles can be ordered optionally.

You can find further information in the Infosheet.

Technical Details

  • ATxmega128A1 (128k+8k Flash, 8k SRAM, 2k EEPROM)
  • Interfaces: 8xUSART, 4xSPI, 4xI2C/TWI, 78x IO Pins
  • Peripherals: DMA, event system, 8x 8/16 Bit timer mit PWM/capture/compare, 2x 8ch. 12 Bit ADC, 2x 2ch. 12 Bit DAC, 4x analog comparator, RTC timer, watchdog, brownout, sleep/powerdown mode
  • 6-Pin PDI interface with standard pinout, JTAG
  • CP2102 USB UART converter at USART0/PORTF
  • MAX3362 RS485 transceiver at USART0/PORTE
  • selectable XTAL crystal frequency, or 32kHz watch crystal
  • onboard 3.3V LDO voltage regulator
  • Connectors: 2x 48-pin with all processor signals, USB and RS485 Signalen, 1x 6-pin ISP, mini USB-B (5-pin), micro SD-card
  • 2.54mm (1/10inch) pin grid
  • Size: 60.96mm x 30.48mm


  • Infosheet
  • Schematic Diagram
  • ATxmega128A1 Datasheet
  • ATxmegaAU Manual
  • Atmel AVR-Studio (incl. Toolchain + Software Framework)
  • CodeVisionAVR C Compiler
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