I'm kinda new to this so the name is based on Digikey. I have a PIC24FV32KA304 and I want to put an external oscillator of 32mhz. I found out that an oscillator like this one is a bit cheaper than say, like this one.

This is the configuration I thought using a crystal : enter image description here

My question is, if I want to use an oscillator rather than a crystal, how do I connect the output of it to pins 30 and 31 ?

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    \$\begingroup\$ Just as a note: the oscillator takes a lot of current (20-45mA), if you connect a crystal it will likely be a lot less (drive level is max 100 µW). That might be important for some applications. \$\endgroup\$ – Arsenal Oct 3 '15 at 20:01

It connects to CLKI (the "I" is for "In") and you configure the device to use an external clock source instead of a crystal.

  • \$\begingroup\$ I suppose I can configure the other pin as an I/O ? \$\endgroup\$ – GmodCake Oct 3 '15 at 19:53
  • \$\begingroup\$ You should be able to. Unless you want to cascade the clock to another device. \$\endgroup\$ – Ignacio Vazquez-Abrams Oct 3 '15 at 19:53
  • \$\begingroup\$ @GmodCake you want to have a look at the errata, I've encountered quite a few devices where it wouldn't work correctly as GPIO if the other pin is used as clock in. \$\endgroup\$ – Arsenal Oct 3 '15 at 19:57
  • \$\begingroup\$ @Arsenal I'll take note of that, but I think I will leave it unconnected anyway \$\endgroup\$ – GmodCake Oct 3 '15 at 19:58

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