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Atmel AVR ATxmega128A3U microcontroller module with USB UART, RS485, micro-sd-card, voltage regulator.

CrumbX128A3 AVR Xmega Module

Description

CrumbX128A3 V1.2 is a versatile and very compact/small (just 40x30mm size!) microcontroller module with the ATxmega128A3U 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

ATxmega128A3U (128k+8k Flash, 8k SRAM, 2k EEPROM)
Interfaces: 7xUSART, 3xSPI, 2xI2C/TWI, 50x IO Pins
Peripherals: DMA, event system, 7x 8/16 Bit timer mit PWM/capture/compare, 2x 8ch. 12 Bit ADC, 1x 2ch. 12 Bit DAC, 4x analog comparator, RTC timer, watchdog, brownout, sleep/powerdown mode
internal USB controller
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 32-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: 40.64mm x 30.48mm