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Digital i/o, Counter/timer i/o, Digital i/o -3 – Measurement Computing PCIM-DAS16JR/16 User Manual

Page 19: Counter/timer i/o -3

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PCIM-DAS16JR/16 User's Guide

Functional Details

Digital I/O

Eight TTL-compatible digital I/O channels are available on the main I/O connector. Four of the digital channels
are configured as input. The remaining four are configured as output.

Counter/timer I/O

The PCIM-DAS16JR/16 provides an 82C54 counter chip. This chip contains three 16-bit down counters that
provide clock, gate, and output connections. You can connect the counter clock to the on-board 10 MHz crystal
oscillator, or leave the counter clock unconnected for user input. For more information on the 82C54, visit our
web site at

www.mccdaq.com/PDFmanuals/82C54.pdf

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