Testing 555 IC's

[last updated: 2023-03-16]
Oscillators & Filters
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• With multimeter:
  • Set meter to read Ohms/Diode-check

• Test circuit:
  • Setup:
    • Connect 555 Vcc to voltage source
      Connect Gnd of 555 to voltage ground
      Connect 555 Reset to Vcc
      Connect 555 Threshold to Trigger
  • Test:
    • Connect Threshold/Trigger to +V
      Output should read 0v
    • Connect Threshold/Trigger to gnd
      Output should read +V

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