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Introduction
1.1 Features
The 7248/96 series products provide the following advanced features:
1.1.1 Digital I/O Ports
• 24/48/96 TTL/DTL compatible with digital I/O lines
• Emulates industry standard mode 0 of 8255 PPI
• Buffered circuits for higher driving
• Direct interface with OPTO-22 compatible I/O module
• Output status read-back
1.1.2 Timer/Counter and Interrupt System
• A 32 bits timer to generate watchdog timer interrupt
• A 16 bits event counter to generate event interrupt
• Programmable interrupt source
• Dual interrupt system
1.1.3 Miscellaneous
• Provide 12V and 5V power supply on OPTO-22 connectors
• On board reset-able fuses to protect power supply for external
devices
1.2 Applications
• Programmable mixed digital input & output
• Industrial monitoring and control
• Digital I/O control
• Contact closure, switch/keyboard monitoring
• Connects with OPTO-22 compatible modules
• Useful with A/D and D/A to implement a data acquisition and control
system
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