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 MEN or other manufacturers.

Features

  • 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

Specifications

Digital I/O
  • 32 digital signals
    • 4 optically isolated units
    • 8 channels for each unit
  • Individual use of each channel as input or output
  • Individual edge-triggered interrupts
  • Input/output load on ground
  • High-side switching
  • Over-current and over-temperature protection
Digital Output Characteristics
  • Output voltage range: 12 V to 32 V
  • Output current: Logical low max. 10 µA
  • Output current: Logical high max. 1.9 A (per channel)
  • Output current: Logical high max. 4 A (per unit)
  • Switching time for output change: 200 µs typ.
  • Isolation voltage (optocoupler): 500 V DC
Digital Input Characteristics
  • Input voltage min.: 0 V
  • Input voltage max. external supply voltage (12 V to 32 V)
  • Voltage level: Logical low 0 V to 6 V or open
  • Voltage level: Logical high 12 V to 32 V
  • Input current: Logical high 4.4 mA @ 24 V
  • Switching threshold: 9.2 V @ 0.78 mA typ.
  • Switching time for input change: 200 µs typ.
  • Excess voltage protection: ± 50V
Interfaces
  • Digital I/O
    • 32x digital output, isolated, HD-Sub, 44-pin, receptacle
    • 32x digital input, isolated, HD-Sub, 44-pin, receptacle
  • M-Module
    • 1x A08/D08/INTA/IDENT, board to board
Product Standard
M-Module: ANSI/VITA 12-1997 (S2012)
Electrical Specifications
  • Supply voltage
    • +5 V (-3%/+5%)
    • +24 V (external supply voltage 12 V to 32 V)
  • Power consumption
    • 1 W typ. @ +5 V
    • 1.104 W typ. @ +24 V
  • Isolation voltage:
    • 500 V DC between isolated side and digital side
    • 180V DC between the channels
    • Voltage between the connector shield and isolated ground is limited to 180 V using a varistor; AC coupling between connector shield and isolated ground through 47 nF capacitor
Mechanical Specifications
  • Dimensions standard: M-Module: (W) 149 mm, (D) 53 mm
  • Weight: 110 g
Environmental Specifications
  • Operating temperature
    • 0°C to +60°C or -40°C to +70°C
    • -40°C to +85°C with an airflow of 1.0 m/s
  • Storage temperature: -40°C to +85°C
  • Relative humidity range (operation): max. 95% without condensation
  • Relative humidity range (storage): max. 95% without condensation
  • Altitude: -300 m to +3000 m
  • Shock: 15g/11ms
  • Bump: 10g/16ms
  • Vibration (sinusoidal): 2g/10 Hz to 150 Hz
  • Conformal coating on request
Safety
PCB manufactured with a flammability rating of 94V-0 by UL recognized manufacturers
EMC
  • EN 55022 (radio disturbance)
  • IEC 61000-4-2 (ESD)
  • IEC 61000-4-4 (burst)
Reliability
MTBF: 45 000h @ 50°C (derived from MIL-HDBK-217F)
Software Support

Downloads