Microcontroller Module with ATmega2560 Chip45 Crumb2560-1.1

Crumb2560 V1.1 is a versatile, small (just 60×30mm footprint!) microcontroller module with the ATmega2560 microcontroller, a CP2102 USB UART converter, a MAX3221 RS232 transceiver and a 75ALS176 RS485 transceiver.

Detailed Description

All ATmega2560 signals are available on pads. A watch crystal (TOSC) is preassembled and a selectable XTAL crystal is included.

Chip45 CRUMB2560

The Crumb2560 is being shipped without preassembled pinheaders, since everybody has different preferences here. A suitable Connector Kit with pin headers and receptacles can be ordered optionally.

Features:

  • ATmega2560 (256k Flash, 8k SRAM, 4k EEPROM)
  • Interfaces: 4x UART, SPI, TWI (I2C), ADC, ext. processor bus
  • ISP interface with 6-pin standard pinout
  • CP2102 USB UART converter at UART0
  • MAX3221 RS232 transceiver at UART2
  • SN75ALS176 RS485 transceiver at UART3
  • 32768Hz watch crystal preassembled
  • XTAL crystal frequency selectable
  • connections: 2×48-pin with all processor signals, USB mini-B connector, 1×6-pin ISP, 3pin 3.5mm screw terminal pads for RS485
  • 2.54mm (1/10inch) modular grid
  • dimensions: 60.96mm × 30.48mm

Schematic diagram Crumb2560 microcontroller module

Schematic Chip45 AVR-CRUMB2560
Click to enlarge

Other Names:

AVRCRUMB2560, Crumb25601.1, AVR CRUMB2560, Crumb2560 1.1, AVR-CRUMB2560 Crumb2560-1.1, AVR-CRUMB2560 Crumb2560-1.1