Dataram, back in the day, made 'generic' core memory planes. That is, the had a relatively speaking simple electrical interface, and many vendors just implemented whatever was needed to hook it up to the vendors (usually) proprietary interface.
I have a couple I've been (very) slowly trying to get working with a modern-ish microcontroller with USB connectivity.
You can buy FRAM (Ferroelectric RAM) which are effectively the same thing just in smaller package. But I have seen them only about few kB. However the amount of R/W operations is effectively unlimited,
It is the future, and has been the future for almost 40 years already! I bet that's what the hoverboards will use inside their microcontrollers — gotta drive those portable fusion reactors reliably!
I have a couple I've been (very) slowly trying to get working with a modern-ish microcontroller with USB connectivity.
I think MRAM is the future though.