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FBIZA.1
Associate II
April 24, 2020
Solved

Decoupling capacitors in STM32F4 scheme.

  • April 24, 2020
  • 1 reply
  • 1455 views

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 Are the VCAP_1/VCAP_2 external capacitor decoupling capacitors ?  (when using the 2.2 uF with power regulator ON)

PowerSupplyScheme page 77:

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Best answer by Uwe Bonnes

Yes. The MCU generates its own vore voltage and this voltage _needs_ decoupling.

1 reply

Uwe Bonnes
Uwe BonnesBest answer
Chief
April 24, 2020

Yes. The MCU generates its own vore voltage and this voltage _needs_ decoupling.