using RC/RCL/555 timer as oscillator for mcu

Discussion in 'Embedded Systems and Microcontrollers' started by bug13, Apr 29, 2012.

  1. bug13

    Thread Starter Senior Member

    Feb 13, 2012
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    40
    there is a discontinue chip (AT90S8185) that I have, it doesn't come with an internal oscillator, I was wondering if I can get it going with a RC/RCL oscillator circuit? thanks.

    I am new to MCU so this is a learning experiment for me :)
     
  2. MrChips

    Moderator

    Oct 2, 2009
    13,363
    3,746
    Are you planning on using the UART?
    Does the chip have two XTAL pins? If so use an external XTAL.
    Otherwise use a XTAL oscillator module.
     
  3. bug13

    Thread Starter Senior Member

    Feb 13, 2012
    1,233
    40
    yes, there is a XTAL pin, not planing to use UART
     
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