I need to know the lead time for these two STM products? STM32H743VIT6 and STM32F103

[KMadu.1]

We are designing a control board by using STM32H743VIT6 and STM32F103C8T6. But there is no stock available for these two STM products in any electronics part suppliers. Without these parts, we could not move further with the designing process. Therefore I need to know, How much time we have to wait until coming STM32H743VIT6 and STM32F103C8T6 is available to buy?

[Tesla DeLorean]

Unlikely to be much free stock of anything this year. You should perhaps ask your distributor when he expects his current back orders will clear.​

[KMadu.1]

Thank you for answering. As DigiKey says the manufacturer's standard lead time 45 weeks. This is a very huge time for us. Therefore I need to know is there any direct method to contact STM about this matter?

[LMI2]

I used a simple non ARM CPU and the customer is not complaining.