STM32H753 and STM32H743 (the difference)

[VK.17]

I need a development kit/board with STM32H753 MCU.

I find similar - https://www.st.com/en/evaluation-tools/nucleo-h743zi.html  

And decide to solder STM32H753 instead of STM32H743.

I saw STM32H753I-EVAL, but it is too expensive.

What is the difference between this two MCU`s? I find only information about absence/present of the crypto peripheral module. That is all? Do they pin to pin compatible?

Can`t find any information on ST web-site.

[Tesla DeLorean]

Same designs with/without hash/crypt type functionality to address import/export issues. Same pin configurations.

>>I saw STM32H753I-EVAL, but it is too expensive

In the scale of commercial development costs, and engineering time, it doesn't really move the needle. I don't think there is a lot of margin here.

If you are a commercial client of STMicro you might be able to get a loaner directly or via distributor/representative.

There might be some H753 NUCLEO boards available through your FAE, otherwise replacing the chip remains a viable option.

[Khouloud GARSI]

Hi @VK.17​ ,

• The STM32H753 and STM32H743 MCUs are pin to pin compatible.
• The STM32H753 provides the cryptographic acceleration features  (CRYPT and HASH) while STM32H743 devices don't.

Khouloud.

[VK.17]

Does any official document from ST exist, proving this statement?

[Tesla DeLorean]

Good grief...

https://www.st.com/en/microcontrollers/stm32h743-753.html?querycriteria=productId=LN2033

"The STM32H753 integrates a crypto/hash processor providing hardware acceleration for AES-128, -192 and -256 encryption, with support for GCM and CCM, Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms."

[VK.17]

I saw this information, saw that table, compared all pins of this two mcu`s in LQFP144 package. It is look like they are similar.

But I didn`t find any information on ST web-site like - "They are pin to pin compatible". It is similar, but not obvious.

[Khouloud GARSI]

Hi @VK.17​ ,

The two MCUs share the same device ID. So, they are pin to pin compatible. Just by comparing the Pinout tables in the datasheets, you will see this compatibility.

Khouloud.

[VK.17]

Thanks, guys!!!

[After Forever]

Not only guys (: