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
    1,258
    41
    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
    14,506
    4,271
    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
    1,258
    41
    yes, there is a XTAL pin, not planing to use UART
     
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