RTC to 4-Digits LED display - Simple communication

Discussion in 'Digital Circuit Design' started by dor, Sep 19, 2016.

  1. dor

    Thread Starter Active Member

    Feb 20, 2009
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    I'm looking for a RTC that is capable to transmit the data to a simple 4-digits LED Display Module (common Anode/Cathode).

    Obiously RTCs which support a serial communication (e.g. I2C, SPI, UART) aren't good because that I need to translate them using a micro-controller.

    There are so many different chips and it is difficult finding something that fits my requirements.
    Do you know a commonly used chip?

    Any advice is welcome..
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    387
    So what you actually want is an LED clock?
     
  3. dor

    Thread Starter Active Member

    Feb 20, 2009
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    Yes, but not as a complete module.
    I want freedom to choose the LEDs.
     
  4. AlbertHall

    Well-Known Member

    Jun 4, 2014
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  5. dor

    Thread Starter Active Member

    Feb 20, 2009
    62
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    Thanks !
    That's close to what I need. Though the models of the RTC and LED-digits modules aren't written.

    Perhaps there's an RTC that its pinout includes the current time in BCD format?
    I suppose it would be the best chip for the task.
     
  6. AlbertHall

    Well-Known Member

    Jun 4, 2014
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    The RTC in that clock kit is within the uC AT89C2051.
     
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