Skip to main content
Associate III
July 10, 2024
Question

Suitble Hyperram for STM32H735

Hi

I'm designing a PCB using the STM32H735 based on the eval kit STM32H735G-DK.

Since the HyperRAM  S70KL1281 on the eval is EOL I'm looking for an alternative

I have read a few posts with issues on this subject and I'm usure which part i should go with

I have identified following candidates from posts:

S70KL1282 

S27KL0642 (64Mbit)

APS12808L-3OBM

both 128 or 64Mit will be fine. Do you have recommendation on this? 

Thanks

Kristian Vang

 

 

This topic has been closed for replies.

3 replies

BarryWhit
Lead
July 10, 2024

from Infineon AN229785: Migrating from S70KL1281/S70KS1281 to S70KL1282/S70KS1282

Migrate.jpg

 

It's a shame Infineon doesn't recommend a replacement part on the product page when they EOL. I thought that was standard practice.

 

Also look at these threads:

Issues setting up HyperRAM S70KL1282 with STM32H735 (OP has problems, LCE's boards just worked with minor tweak)

Solved: Write/Read issues with HyperRAM S70KL1282 OSPI 

 
 
"- If someone's post helped resolve your issue, please thank them by clicking ""Accept as Solution"".- Please post an update with details once you've solved your issue. Your experience may help others."
July 11, 2024

S70KL1281 is not hard to find

LCE
Principal III
July 11, 2024

I had the same problem, I have the selected the S70KL1282, have my custom boards now for 4 weeks.

I only changed the latency from 6 to 7, everything running smoothly.