A20-SOM204 A20-SOM204 A20-SOM204 A20-SOM204 A20-SOM204
SO-DIMM format system on chip module with A20 Dual Core Cortex-A7 processor

Select Product Variant

  • A20-SOM204-1G
  • A20-SOM204-1Gs16Me16G-MC
Price57.00 EUR
10 - 49 pcs51.30 EUR
50 - 99 pcs45.60 EUR
100 - 999 pcs42.75 EUR
1000 - 10000 pcs39.90 EUR
In stock

A20-SOM204 is a System-on-Chip module, which contains A20 Dual Core Cortex-A7 processor, power managment unit AXP209, 1GB DDR3 memory. This SOM board can have up to 64GB eMMC flash memory (eXXG) and/or 16MB seral flash memory (s16M). This is the only A20 module with two native Ethernet ports.

Ordering code is as follows: A20-SOM204-1Ge16Gs16M-MC

The suffix after A20-SOM204 is abbriviation of the extra features available. For example, suffix "1Ge16Gs16M-MC" means 1GB RAM; 16GB eMMC flash; 16MB SPI Flash, additional Megabit Ethernet and Crypto engine.

Suffix -I means that the components of the System-on-Module are picked for industrial temperature range of operation (-25°C to 85°C). Lack of suffix "-I" means that the board is suitable for commercial temperature range of operation (0-70)°C.

Reference design SOM204-EVB with CAN, SATA, PCIe, USB3.0, USB-OTG, USB2.0 HOST, VGA, HDMI, Audio In/Out, 2 Mpix Camera, Gigabit and Megabit Ethernet is available with Eagle CAD files, so everyone can modify and tailor to his needs. Templates for A20-SOM204 receiptacle done in Eagle and KiCAD are available.


  • Allwinner A20 dual core Cortex-A7 processor, each core typically running at 1GHz
  • AXP209 PMU IC
  • 1GB DDR3 memory
  • Up to 64 eMMC (marked as eXXG)
  • Gigabit Etherner (default option)
  • Additional Megabit native Ethernet (-M option)
  • SATA 
  • Optional Crypto engine (-C option)
  • Status LED
  • 204 pin SO-DIMM signals on PCB edge
  • Flat cable 40 pin LCD connector
  • Flat cable 12 pin GPIO connector
  • Dimensions: 67 x 84 x 5 mm 
  • Operating temperature: (0-70)°C for A20-SOM204XXX
  • Operating temperature: (-25+85)°C for A20-SOM204XXX-I


  • A20-SOM204 user manual (under development)