Skip to main content
Central SUPPORT
Central SUPPORT
Senior
February 28, 2019
Solved

Stand-alone use of STM32 CPU in STSPIN32F0

  • February 28, 2019
  • 1 reply
  • 1185 views

We would like to use the embedded STM32 in the SPIN for calculation purposes if no Vm power supply voltage is available.

But datasheet is mentioning that Vdd < Vm. And the circuit diagram shows connections between Vdd, Vdda and internal 3.3V.

Question 1: Is it possible to use only Vdd and Vdda (both 3.3V) to run the chip ?

Question 2: Under this condition which max. input current we would have to expect if CPU runs in low power mode ?

0690X000006Du7cQAC.png

NOTE: This question and answer originated from a customer support case which was handled by us. We regularly review support cases and add any helpful ones here for all to benefit from.

This topic has been closed for replies.
Best answer by Central SUPPORT

Question1: Is it possible to use only Vdd and Vdda (both 3.3V) to run the chip ?

Answer 1: Yes, you can but in this case you will not able to control the embedded gate driver.

Question 2: Under this condition which max. input current we would have to expect if CPU runs in low power mode ?

Answer 2: Current consumption in Standby mode will be around 125 uA.

1 reply

Central SUPPORT
Central SUPPORTAuthorBest answer
Senior
February 28, 2019

Question1: Is it possible to use only Vdd and Vdda (both 3.3V) to run the chip ?

Answer 1: Yes, you can but in this case you will not able to control the embedded gate driver.

Question 2: Under this condition which max. input current we would have to expect if CPU runs in low power mode ?

Answer 2: Current consumption in Standby mode will be around 125 uA.

Terms & ConditionsAccessibility statement