The PCL-731 offers 48 programmable digital I/O lines. Each port
emulates the operation of an 8255 Programmable Peripheral Interface
(PPI) chip in mode 0, but provides a higher driving capacity than the
8255.
Features
48-bit Digital I/O
Card
Emulates 8255 PPI mode 0
Buffered circuits for higher driving
capacity than the 8255
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