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LMI2
Senior III
Jan 20, 2020 3:15 PM UTC
Solved

How pin compatible are 100pin STM32F746VGT6 and STM32H750VBT6? Solved probably

I hope the title tells it but F746 was out of stock in a couple of European stockists and H750 was in stock and also cheaper. Both in LQFP100. I wonder am I lucky or do I have to make a new board? If buggy forum permits, that is.

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LMI2
LMI2Best answer
Senior III
Jan 20, 2020 9:33 PM UTC

I copied settings my self from CPU to CPU. It looks like they are pin compatible.

6 replies

Tesla DeLorean
Guru
Jan 20, 2020 3:52 PM UTC

The F746, F756 and F750 should all be the same die/bondout. The latter having CRYPT/HASH enabled, and less memory tested.

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RMcCa
Senior II
Jan 20, 2020 5:51 PM UTC

I'm pretty sure the H7s are not pin compatable with the F7 series. They are also quite abit more complicated and the H750 only has one sector of flash.​

Tesla DeLorean
Guru
Jan 20, 2020 5:54 PM UTC

Sorry read F7, ST and their F750 H750 naming to confuse everyone.

I'd walk down the Data Sheet columns for the 100-pin devices in both chips. Have boards where we're run 144-pin H7 and F7 interchangeably.

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LMI2
LMI2Author
Senior III
Jan 20, 2020 6:15 PM UTC

I chose the 100 pin version. Too bad. I have to check those datasheets, sometimes it is just faster to get an answer from forum.

LMI2
LMI2Author
Senior III
Jan 20, 2020 6:52 PM UTC

Power supply, special pins and ports are similar. I wonder, can ports be programmed similarly too, I mean can I have timers, uarts, ADC and so on at same pins.

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LMI2
LMI2AuthorBest answer
Senior III
Jan 20, 2020 9:33 PM UTC

I copied settings my self from CPU to CPU. It looks like they are pin compatible.