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Senior
Oct 17, 2025 9:21 PM UTC
Solved

Flash Memory Organization: STM32G491KCU6, STM32G4A1KEU6

The G491KCU6 part has 256 KB flash. The G4A1KEU6 has 512 KB. Ref man (Table 1) has

mccabehm_0-1760735914649.png

No mention of 256 KB G491 part. Is it category 4?

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Issamos
IssamosBest answer
Super User
Oct 17, 2025 9:29 PM UTC

Hello @mccabehm 

I think you are using an old version of the doc. The last version of the RM0440 (Rev 9) mention the 256KB STM32G491:

Issamos_0-1760736546289.png

Best Regards.

II

1 reply

Issamos
IssamosBest answer
Super User
Oct 17, 2025 9:29 PM UTC

Hello @mccabehm 

I think you are using an old version of the doc. The last version of the RM0440 (Rev 9) mention the 256KB STM32G491:

Issamos_0-1760736546289.png

Best Regards.

II