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Real time clocks — Parallax Forums

Real time clocks

ArchiverArchiver Posts: 46,084
edited 2000-10-18 16:25 in General Discussion
>What kinds of chips are available that will provide a real time clock for
>the stamp? Something that has a clock pulse of 1Hz, and has a SPI interface

Check out Dallas Semiconductor for some nice serial clocks. I am messing
around with a DS1302. I like it.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2000-10-16 12:40
    What kinds of chips are available that will provide a real time clock for
    the stamp? Something that has a clock pulse of 1Hz, and has a SPI interface
    would be great. I am looking to make a 10 minute timer, and the time has to
    be accurate. A chip sold at digikey would be great, cause I'll probably be
    making an order there soon.
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  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 04:49
    Where can I buy a DS1302 online?

    Original Message
    From: carl@g... <carl@g...>
    To: basicstamps@egroups.com <basicstamps@egroups.com>
    Date: Tuesday, 17 October 2000 7:02
    Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks


    >>What kinds of chips are available that will provide a real time clock for
    >>the stamp? Something that has a clock pulse of 1Hz, and has a SPI
    interface
    >
    >Check out Dallas Semiconductor for some nice serial clocks. I am messing
    >around with a DS1302. I like it.
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 05:09
    At 10/18/2000 +0700 10:49 AM, you wrote:
    >Where can I buy a DS1302 online?

    www.dalsemi.com


    >
    Original Message
    >From: carl@g... <carl@g...>
    >To: basicstamps@egroups.com <basicstamps@egroups.com>
    >Date: Tuesday, 17 October 2000 7:02
    >Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks
    >
    >
    > >>What kinds of chips are available that will provide a real time clock for
    > >>the stamp? Something that has a clock pulse of 1Hz, and has a SPI
    >interface
    > >
    > >Check out Dallas Semiconductor for some nice serial clocks. I am messing
    > >around with a DS1302. I like it.
    > >
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 08:35
    How do I have to order online DS1302 in www.dalsemi.com ? (I didn't find
    place to order online)

    Original Message
    From: Bruce Bates <bvbates@u...>
    To: basicstamps@egroups.com <basicstamps@egroups.com>
    Date: Wednesday, 18 October 2000 1:00
    Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks


    >At 10/18/2000 +0700 10:49 AM, you wrote:
    >>Where can I buy a DS1302 online?
    >
    > www.dalsemi.com
    >
    >
    >>
    Original Message
    >>From: carl@g... <carl@g...>
    >>To: basicstamps@egroups.com <basicstamps@egroups.com>
    >>Date: Tuesday, 17 October 2000 7:02
    >>Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks
    >>
    >>
    >> >>What kinds of chips are available that will provide a real time clock
    for
    >> >>the stamp? Something that has a clock pulse of 1Hz, and has a SPI
    >>interface
    >> >
    >> >Check out Dallas Semiconductor for some nice serial clocks. I am
    messing
    >> >around with a DS1302. I like it.
    >> >
    >> >
    >> >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 09:22
    At 10/18/2000 +0700 02:35 PM, you wrote:
    >How do I have to order online DS1302 in www.dalsemi.com ? (I didn't find
    >place to order online)

    http://www.dalsemi.com/sales/credit_card.html


    >
    Original Message
    >From: Bruce Bates <bvbates@u...>
    >To: basicstamps@egroups.com <basicstamps@egroups.com>
    >Date: Wednesday, 18 October 2000 1:00
    >Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks
    >
    >
    > >At 10/18/2000 +0700 10:49 AM, you wrote:
    > >>Where can I buy a DS1302 online?
    > >
    > > www.dalsemi.com
    > >
    > >
    > >>
    Original Message
    > >>From: carl@g... <carl@g...>
    > >>To: basicstamps@egroups.com <basicstamps@egroups.com>
    > >>Date: Tuesday, 17 October 2000 7:02
    > >>Subject: Re: [noparse][[/noparse]basicstamps] Real time clocks
    > >>
    > >>
    > >> >>What kinds of chips are available that will provide a real time clock
    >for
    > >> >>the stamp? Something that has a clock pulse of 1Hz, and has a SPI
    > >>interface
    > >> >
    > >> >Check out Dallas Semiconductor for some nice serial clocks. I am
    >messing
    > >> >around with a DS1302. I like it.
    > >> >
    > >> >
    > >> >
    > >
    > >
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 11:34
    >Where can I buy a DS1302 online?


    Newark Electronics, for one.
  • ArchiverArchiver Posts: 46,084
    edited 2000-10-18 16:25
    It's not online, but check out: http://www.phanderson.com/


    > >Where can I buy a DS1302 online?
    >
    >
    > Newark Electronics, for one.
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