cPCI-7248/7249R
48 Channel Digital I/O and Counter/Timer Module

Features

• 3U CompactPCI, PICMG 2.0 Rev 2.1
• 48 TTL compatible digital I/O channels
• Rear I/O available on cPCI-7249
• Emulates 2 industry standard 8255 (mode 0)
• Buffered circuits for 20mA driving capacity
• Output port status read back
• On board 8254 timer/counter chip
• A 32-bit timer for watchdog timer interrupt
• A 16-bit event counter with event interrupt
• Dual interrupt system , with programmable interrupt sources
• Provides 12V and 5V power supply to connectors, On board resettable fuses to protect power supply
• Rugged 100-pin SCSI-type connector

Specifications

• Digital Input / Output
  I/O channels:

  48 digital I/O for cPCI-7248

  48 digital I/O for cPCI-7249 for both front I/O and rear I/O

  
  I/O characteristics: TTL compatible
  Input signal

  Logic 'H' 2.0~5.25V @ 22.0 mA

  Logic 'L' 0.0~0.80V @ 0.2 mA

  
  Output signal:

  Logic 'H': 2.4V min. @ 2.6 mA

  Logic 'L': 0.5V max. @ 24. mA

  
  External digital input latch available on cPCI-7249
  Data transfer modes: Program I/O
  Date transfer rate: max 500 K bytes/sec by program control

• Interrupt System
  Dual interrupt system
  Interrupt #1 sources: P1C0, P1C3, event counter
  Interrupt #1 sources: P2C0, P2C3, internal timer
• General Specifications
  Operating temperature: 0-60°
  Storage temperature: -20- 80°C
  I/O connector: 100-pin SCSI-type connector (female)
  Power consumption (without external loading devices)
  cPCI-7248

  +5V @ 500 mA (typical)

  
  cPCI-7249

  +5V @ 580 mA (typical)

Termination Boards
DIN-100S

Ordering Information

• cPCI-7248
  48 Channel Digital I/O Card (with developing kits for DOS/Win-95, PCIS-DASK)
• cPCI-7249
  48 Channel Digital I/O Card with Rear I/O (with developing kits for DOS, Win-95, PCIS-DASK)
• cPCI-7248/D, cPCI-7249/D
  cPCI-7248/9 with DIN-100S

   

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