A20-SOM204-1GS16ME16G-MC

Overview

The A20-SOM204-1GS16ME16G-MC is a System-on-Module (SOM) manufactured by Olimex Ltd. It integrates an Allwinner A20 dual-core Cortex-A7 processor running at 1GHz, paired with 1GB of DDR3 memory and 16GB of eMMC flash storage. The module includes 16MB of serial flash and features two local Ethernet ports: one Gigabit and one Megabit. An optional cryptographic engine is included in this specific variant. The hardware is housed in a standard 204-pin SO-DIMM form factor measuring 67 x 84 x 5 mm.

Feature Summary

• Allwinner A20 Dual-Core Cortex-A7 Processor @ 1GHz
• 1GB DDR3 RAM and 16GB eMMC Flash
• Dual Ethernet Interface: 1x Gigabit + 1x Megabit
• Integrated Cryptographic Engine (-MC suffix)
• 204-Pin SO-DIMM Connector

Applications

• Industrial automation controllers requiring dual network connectivity
• Embedded multimedia gateways with video output support
• Secure IoT edge devices utilizing the onboard crypto engine
• Custom computing platforms based on open-source reference designs

Selection Notes

Select the -MC suffix to enable the additional cryptographic engine for security-sensitive applications. Choose the -I suffix if industrial temperature range operation (-25°C to 85°C) is required; otherwise, the standard commercial range is 0°C to 70°C. Verify that the host carrier board supports the 204-pin SO-DIMM interface and provides necessary power delivery for the A20 SoC.

Part Context

This module belongs to the Olimex SOM204 family, which utilizes a universal layout compatible with various SoCs including A64, RK3328, and AM335X. The A20 variant is distinct within this line as the only module offering two local Ethernet ports. Reference designs are available in Eagle CAD format, supporting interfaces such as SATA, PCIe, USB 3.0, HDMI, and VGA.

Replacement Considerations

Direct pin-compatible replacements within the same manufacturer's portfolio include other A20-based modules like the A20-SOM204-1Ge16Gs16M or variants with different memory configurations. Cross-family replacement requires evaluating the specific SoC requirements, as the universal layout supports multiple processors but electrical characteristics may vary.