STM32F37x SRAM size

bpacan · ‎2013-08-13

Posted on August 13, 2013 at 14:23

Hi, I have a simple question regarding internal SRAM size of STM32F373Rx processor. Datasheet (rev.3, table 2 on page 10) specifies SRAM size of 24kB for 128kB Flash units,

but I can read and write up to 32kB of SRAM (tested with ST-Link on 128k and 256k Flash units). What am I missing?

#stm32f373

Tesla DeLorean · ‎2013-08-13

Posted on August 13, 2013 at 15:36

What am I missing?

Probably that they have the same die tested to different levels of thoroughness.

Tips, Buy me a coffee, or three.. PayPal Venmo
Up vote any posts that you find helpful, it shows what's working..

emalund · ‎2013-08-13

Posted on August 13, 2013 at 18:11

it is common for the manufacturers to sell as a lesser memory size a chip made with a larger size that fails in the memory above what is specified for the lesser variant.

DO NOT rely on memory beyond what is specified for the chip to work, someon did so, and spent ages hunting an intermittent bug.

Erik