M58 - Mezzanine Card with 32-bit TTL I/O Interface

The mezzanine card M58 is a TTL I/O M-Module which is used for fast and trouble-free transmission of binary signals. It is organized in four 8-bit groups, where each group can be programmed as an input or output. Every group supports active termination, which can be activated by software.

A trigger line allows simultaneous acquisition of the inputs of several groups - also on several modules - at a specific point of time.

All port lines are ESD-protected, but not optically isolated.

The M58 is basedon 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 MEN or other manufacturers.


  • 32 TTL inputs/outputs
  • Output current per pin: max. 25 mA
  • Active terminators
  • Same line interface as SCSI
  • Fast 16-bit host access
  • -40 °C to +85 °C versions


  • 32-bit TTL I/O
  • Output current permanent per pin: max. 25mA
  • 4 groups, alternatively input or output
  • Active terminators can be activated for each group
  • Output low current (VOL max. 0.55V): sink min. 25mA
  • Output high current (VOH min. 2.0V): source min. 25mA
  • Input high current: max. 100µA
  • Input low current: max. -100µA
  • Input voltage: min. -0.5V, max. 6V
  • Switching times:
    • Output low-to-high: tbd.
    • Output high-to-low: tbd.
    • Input: tbd.
Trigger line with interrupt capabilities
Peripheral Connections
  • Via front panel on a shielded 44-pin HD-Sub receptacle connector
  • Via carrier board (rear I/O)
M-Module Characteristics
Electrical Specifications
  • Supply voltage/power consumption: +5V (-3%/+5%), 230mA typ. (idle), 1000mA max.
  • MTBF: 1,058,309h @ 40°C according to IEC/TR 62380 (RDF 2000)
Mechanical Specifications
  • Dimensions: conforming to M-Module Standard
  • Weight: 68g
Environmental Specifications
  • Temperature range (operation):
    • 0..+60°C or -40..+85°C
    • Airflow: min. 10m³/h
  • Temperature range (storage): -40..+85°C
  • Relative humidity range (operation): max. 95% non-condensing
  • Relative humidity range (storage): max. 95% non-condensing
  • Altitude: -300m to + 3,000m
  • Shock: 15g/11ms
  • Bump: 10g/16ms
  • Vibration (sinusoidal): 2g/10..150Hz
  • Conformal coating on request
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
Tested according to EN 55022 (radio disturbance), IEC 61000-4-2 (ESD) and IEC 61000-4-4 (burst)
Software Support