About NirAlon

NirAlon · 2024-10-13

Hello all,Regarding the STM32H725 bulk capacitors:Question 1:Is the capacitors required values taken into consideration the capacitance degradation Vs DC bias?For example:The SMPS input required is 4.7uF (10uF recommended)Looking at the STM32H735G-DK...

NirAlon · 2024-10-10

Hello all,In my design, I wish to use the STM32H725RGV6 (VFQFPN 68pin)In this package, there is no embedded LDO.There is no explanation or design example for the use the embedded SMPS in this package...should I connect the SMPS output directly to VCO...

NirAlon · 2023-02-22

Regarding P/N: STM32WB55 in a WLCSP100 package:Q1: When VBAT is not in use, can I connect it to GND?Q2: When VDDA is not in use, it must be connected to VDD, but is it still requires a 10 nF + 1 μF capacitors?Q3: If VDDA is not in use, can I connect ...

NirAlon · 2022-07-13

Hello all,While searching online, I came across this specification regarding USB FS:For full-speed communications, the data rate is specified to be 12 Mbps +/- 0.25%.I've decided to test this specification by connecting a STM32F415 MCU to a PC using ...

NirAlon · 2024-10-14

OK, thanks againNir

NirAlon · 2024-10-14

Hi,Thanks for the replyThere is not much capacitance you can squeeze from a 0402 case, maybe ~3.8uF @ 3.3V at best...For example: p/n GRM155C80J106ME18 10uF/6.3VAnd to think that when you buy an evaluation board, you get an electrical design that sho...

NirAlon · 2024-10-10

Hi Kaouthar,Thanks for the quick response!A small correction, the VQFPN68 package does have a VCAP pin, the VDDLDO is not available.Just to make sure I understood you, the configuration for VQFPN68 should look something like this?Thanks again,Nir

NirAlon · 2023-03-02

Thanks a lot!

NirAlon · 2022-07-17

Thanks you all for the interesting discussion,Just to be clear, I have no intention to push the clock specification to its limit.My actual MCU crystal have a +/-50ppm tolerance (under all conditions) which would be more than enough to meet the specif...

User statistics

User Activity

STM32H725 Bulk capacitors values

STM32H725RGV6 - How to connect SMPS when no available VDDLDO

STM32WB55 WLCSP100 Power supply connections when not in use.

STM32F415 USB Full Speed Clock Accuracy

Re: STM32H725 Bulk capacitors values

Re: STM32H725 Bulk capacitors values

Re: STM32H725RGV6 - How to connect SMPS when no available VDDLDO

Re: STM32WB55 WLCSP100 Power supply connections when not in use.

Re: STM32F415 USB Full Speed Clock Accuracy