Specifications:

• Digital I/O:
  48 bit digital I/O lines (2 groups)
  Group emulates a 8225 PPI mode 0
  Buffered circuits for higher driving
  capacity than 8255
  Bit 0 of port C can generate an interrupt to
  IRQ 2, 3, 4, 5, 6 or 7
  Interrupt trigger on rising / falling edge
  Output status read back
  Pin-compatible with OPTO-22
  I/O module racks
  Transfer rate: 300 KB/sec. (typical)
  Digital output: Logic level 0: 0.5 V max. @
  24 mA
  Logic level 1: 2.0 V min. @ 15 mA
  Digital input: Logic level 0: 0.8 V max.
  Logic level 1: 2.0 V min.
  
• Connector:
  50-pin box header for I/O port
  
• Power Requirements: single +5V @
  600 mA
  
• Dimensions: 90 (L) x 96 (W) mm.
  
• Weight: 100 g
  
• Operating Temperature:
  -20 ~ +50° C