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Sharing CLOCK and DATA Lines — Parallax Forums

Sharing CLOCK and DATA Lines

MikerocontrollerMikerocontroller Posts: 310
edited 2009-12-03 04:32 in BASIC Stamp
· I'm using a DS1620 Temperature chip and DS1302 Timekeeping chip in the same circuit.· I understand the CLOCK lines can be shared.· Can I also share the DATA lines?

Comments

  • Tracy AllenTracy Allen Posts: 6,664
    edited 2009-12-02 18:17
    Yes, so long as you have separate chip select lines for the '1302 and the '1620. Its always a good idea to include a resistor of 220 to 1000 ohms in each data line, to avoid the possibility of contention.

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    Tracy Allen
    www.emesystems.com
  • MikerocontrollerMikerocontroller Posts: 310
    edited 2009-12-03 04:32
    Thank you Mr. Allen. P.S. Your Stamp Math info should be required reading!
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