What are the Current Measurements for the SOMDIMM Modules?
  • Conditions:
    DIMM modules are installed into a ‘bare’ CARRIER PCB with only minimal decoupling and ONLY the Ethernet Combo Jack, NO other additional circuitry. No LCD, no RS232, No 3.3V regulator, etc.
  • Measurement Method:
    Using a cable from the I2C header, the 5V & 3.3V rails are connected to the BK Precision Dual Output power supply. Current measurements were taken using Fluke 189 Meter in circuit.
  • SOMDIMM-LPC3250:
    State: Power On, performing boot process
    5V = 0.017A
    3.3V = 0.148A
    State: Linux booted and sitting at the ‘login’ prompt
    5V = 0.002A
    3.3V = 0.185A
    Observed max:
    5V = 0.025A
    3.3V = 0.333A
  • SOMDIMM-LPC2478:
    State: Booted at the μEZ Screen
    5V = 0.000A
    3.3V = 0200A
    Observed max:
    5V = 0.002A
    3.3V = 0.208A