Development board for ADuC7020 ARM7 microcontroller

This item is OBSOLETE

ADuC-IO7020 is a very good platform for automation applications which need fast ADC and DACs and to commutate high loads. It has 4 relays 240VAC/10A, 4 optoisolated inputs, RS232, JTAG and the 1Msps ADC/DACs are available on separate connector for connection to external sensors.


  • MCU: ADuC7020 - ARM7TDMI Core, 16/32-bit RISC architecture, 5 Channels 12-bit, 1MSPS ADC, Differential and single-ended modes, 0 to Vref Analog Input Range, 4 Outputs 12-bit Voltage Output DACs, On-Chip 20ppm/°C Voltage Reference, On-Chip Temperature Sensor (±3°C), Uncommitted Voltage Comparator, JTAG Port, Clocking options: Trimmed On-Chip Oscillator (± 2%), External Watch crystal, External clock source
    45MHz PLL with Programmable Divider, 62k Bytes Flash/EE Memory, 8k Bytes SRAM, In-Circuit Download, JTAG based Debug, Software triggered in-circuit re-programmability, UART, dual I2C and SPI Serial I/O, 14-Pin GPIO Port, 2 X General Purpose Timers, Wake-up and Watchdog Timers, Power Supply Monitor, PLA – Programmable Logic (Array), Power Specified for 3V operation, Active Mode: 6mW (@1MHz) 300mW (@45MHz), Fully specified for –40°C to 85°C operation;
  • JTAG connector for in-circuit programming and debugging with ARM-JTAG
  • RS232 interface circuit and connector
  • I2C connector
  • RESET button
  • SERIAL DOWNLOAD (bootloader enable) button
  • LED status
  • Power supply circuit with plug-in power jack and diode protection
  • 32 768 Hz oscillator crystal
  • 4 RELAYs with 10A/250VAC NO and NC contacts with screw terminals
  • Extension header for ADC and DAC ports
  • PCB: FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print
  • Four mounting holes 3.3 mm (0.13")