Externer nichtvolatiler Speicher zur Zwischenspeicherung von Daten

[Andreas]

FRAM

Das hört sich doch solide an mit dem FRAM – vielen Dank!

Um noch einmal Adafruit dazu zu zitieren…

@Adafruit

FRAM allows for a lower power usage and a faster write performance. It’s excellent for low-power or inconsistent-power datalogging or data buffering where you want to stream data fast while also keeping the data when there’s no power. Unlike Flash or EEPROM there’s no pages to worry about.

Each byte can be read and written instantaneously like SRAM. FRAM allows for a ballpark of 10,000,000,000,000 read/write cycles so you don’t have to worry too much about wear leveling. The chosen FRAM chip will keep its memory for 95 years at room temperature.

– https://www.adafruit.com/product/1895

PSRAM

@Andreas

I would prefer some off-the-shelf part like the PSRAM module referenced above.

Espressif also sells nicely(?) packaged ESP-PSRAM64 modules which talk SPI. There are rumors that some PSRAM modules consume down to about 3μA-10μA in deep power-down (DPD) mode, e.g. IS66/IS67.

Maybe @roh or @weef will know something to recommend here for us.

Nur so zur Gaudi… Wäre die hier beschriebene PSRAM Technologie auch geeignet, um volatilere Einsatzszenarien abzudecken oder ist das Quatsch, weil FRAM ohnehin “far superior” ist und man sich daher nicht weiter den Kopf über Alternativen zu zerbrechen braucht?