Specifications

4 PCI-1757UP User's Manual
Features
i Low profile PCI card
i Universal PCI card, adapt 3.3V and 5V PCI slot
i 24 TTL level digital I/O lines
i Emulates mode 0 of 8255 PPI
i Buffered circuits provide higher driving capability
i Output status read-back
i I/O configure by software or on board DIP switch
i Keeps port I/O settings and digital output states after hot reset
i Board ID set by DIP switch
i Digital input with Interrupt capability
i D-SUB 25-pin connector
Specifications
Digital Input
• Logic high voltage: 2.0 V min.
• Logic low voltage: 0.80 V max.
• Maximum Input Leakage Current: 2µA
Digital Output
• Logic high voltage: 3.7 V min. @ 24mA (source)
• Logic low voltage: 0.5 V max. @ -24 mA (sink)
Interrupt Source
• PC0, PC4