6821 PIA

  • Model: 6821
  • Shipping Weight: 0.0198lbs
  • 14 Units in Stock

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6821 integrated circuit, PIA - "peripheral interface adapter".  These are used in pinball machines going all the way back to 1978.  Very common failure, especially if there was an over-voltage problem.


Bally E-620-29, E-00630-0029

Williams 5A-8972, 5430-08972-00

These were purchased in China. All tested good on a Bally MPU board. See the pics below.


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