Does the MN820 module include DRAM memory?

Yes, the MN820 System on Module (SoM) includes a 1 GBit of on-board DDR3L (Double Data Rate 3 Low Voltage) memory. This DDR3L memory is clocked at 667MHz, capable of running at speeds of up to 133MT/s (million transfers/second) with a data width of 16bits. The MN820 includes a DC-DC buck convertor that independently supplies the 1.35V core voltage for the DDR3L memory, with careful attention dedicated to ensuring proper functionality and signal integrity in the PCB layout for the memory module.