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A20-SOM is System on Chip module, which contains A20 Dual Core Cortex-A7 processor, Power managment Unit AXP209, 1GB DDR3 memory and optional 4GB NAND Flash. All A20 signals are available on 6 connectors x 40 pin with 0.05" step. A20-SOM have UART console connector and SD-card.
Reference design for A20-EVB with VGA, HDMI, Audio In/Out, 2 Mpix Camera, Gigabit Ethernet, SATA, USB-OTG and 2 USB hosts is available with Eagle CAD files, so everyone can modify and tailor to his needs. Templates for A20-SOM receiptacle done in Eagle and KiCAD are available.
Allwinner A20 dual core Cortex-A7 processor, each core typically running at 1GHz 1GB DDR3 memory AXP209 PMU IC MicroSD card UART console Status LEDs RESET, RECOVERY buttons 6 connectors x 40 pin 0.05" step Dimensions: (3200 x 2200)mil ~ (81.28 x 55.88)mm