• 96 Channel Bi-Directional TTL I/O Board
• Four 8255A PPIs On-Board
• 8255 PPI Mode 0 to Mode 2

Block Diagram                  
PIN Assignment                  Circuitry

• No. of channels: 96 (8 signals x 12 groups)
  
• Type: Bi-directional TTL level (positive logic)
  
• Programmable mode: 8255 PPI Mode 0 - Mode 2
  
  

• Pull-up resistor: 20K Ohms
  
  

• Output rating: +5 VDC 1 mA max. (2 LS-TTL load)
  
  

• Interrupt: C4 & C7 of Port C can generate an interrupt to IRQ 3-7 and 9.
  
• Enhanced interrupt feature: 8 interrupt lines use only one IRQ
  
• Throughput rate: 200 nsec max.
  
• I/O address: Any 32-byte boundary
  
• Power consumption: +5 VDC 450 mA max.
  
• OpeDimensions: 13.1" x 4.2" (340mm x 107mm)

• API-PAC(W32)
  
• ACX-PAC(W32)BP Ver.2.0.
  
• DDE-SERVER(W32)
  
• VI-DAQ for LabVIEW
  
• SUPPORT PAC(PC)603
  
  

• DTP-3(PC)
  
• DTP-4(PC)

• 96 bi-directional TTL digital I/Os
  
• I/O direction set by software
  
• Four 8255 PPIs on board
  
• 8255 PPI mode 0 - Mode 2
  
• 1 interrupt line