M66 - Mezzanine Card with 32 Digital Inputs/Outputs

The mezzanine card M66 provides 32 binary process signals on one single M-Module, which is the largest number of digital channels ever seen on a mezzanine board. This allows a total of 128 signals with four M-Modules on a double Eurocard (i.e. in one slot of a VME or CPCI system). With its extremely high output current of 1.9 A per channel, optical isolation and its over-current and over-temperature protection mechanisms, the M66 is the M-Module of choice for advanced industrial and automotive applications.

The M66 is based on the M-Module ANSI mezzanine standard. It can be used as an I/O extension in any type of bus system, i.e. CPCI, VME or on any type of stand-alone SBC. Appropriate M-Module carrier cards in 3U, 6U and other formats are available from duagon or other manufacturers.


  • 32 inputs 0 V to 32 V or
  • 32 outputs 12 V to 32 V or
  • Mixed I/O in groups of 4
  • 1.9 A output current per channel
  • 16 A switching power on one M66
  • Load on ground
  • Optical isolation
  • -40 °C to +85 °C versions