ESP32WROOM32E QSPI max flash speed

grumpyEngineer12 · Postby **grumpyEngineer12** » Tue Feb 01, 2022 9:42 pm

Sorry for the dumb question, but I can't find this information anywhere.

What is the maximum supported speed for the QSPI flash memory inside the ESP32WROOM32E?

I'm trying to (and successfully) running at 80Mhz,

Just want to make sure that this is not a fluke.

Thanks!

Postby **ESP_Sprite** » Wed Feb 02, 2022 2:47 am

The -Wroom modules do not have PSRAM; I imagine you may mean the ESP32-Wrover-E? If so, those modules are OK to run the PSRAM at 80MHz. (From what I recall, the PSRAM chips themselves max out at 133MHz or something, but the ESP32 does not go that high.)

grumpyEngineer12 · Postby **grumpyEngineer12** » Wed Feb 02, 2022 3:23 am

Sorry, I mean the internal QSPI memory (4MB,8MB,16MB) not PSRAM.

Thanks.

Postby **ESP_Sprite** » Wed Feb 02, 2022 11:44 am

The flash is similar: in those modules, it should be able to run at 80MHz.