Vcore pin in 430F5310

MEHMET SADIK SEN

There is a 470nF cap between gnd and Vcore ,if pin is open ,nothing connected or put wrong cap ,or change value while power is on , does microcontroller is damaged ?

over 12 years ago

0 Ilmars over 12 years ago

Guru 46710 points

MEHMET SADIK SEN said:
There is a 470nF cap between gnd and Vcore ,if pin is open ,nothing connected or put wrong cap ,or change value while power is on , does microcontroller is damaged ?

Most probably microcontroller is not damaged, but you better put right cap in place and test.

MEHMET SADIK SEN said:
change value while power is on

Wow... what you are actually doing there? :D

0 MEHMET SADIK SEN over 12 years ago in reply to Ilmars

Prodigy 40 points

i am working in breadboard with 5310 and wrongly cap was moved than i can not program 5310 again and i want to ask why chip is so fragile , removing one cap damaged the chip

0 Jens-Michael Gross over 12 years ago in reply to MEHMET SADIK SEN

Guru 227245 points

MEHMET SADIK SEN said:
i want to ask why chip is so fragile , removing one cap damaged the chip

Removing the heart temporarily while the patient was conscious was damaging the patient. Surprise.

The VCORE cap is the charging capacitor for the core voltage regulator. If you remove it or change it while the device is under power, this will certainly make the core regulator running wild. Perhaps pushing massive overvoltage peaks into the CPU core.

0 MEHMET SADIK SEN over 12 years ago in reply to Jens-Michael Gross

Prodigy 40 points

thank you for your answers

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Vcore pin in 430F5310