There's also FRAM, which has also been around for a while? I have an MSP430 microcontroller where the primary storage is 64kB of FRAM. It's great; performs like SRAM, but is totally persistent, and doesn't wear out.
The largest devices I've seen are 4Mb (512kB), which isn't a lot by PC standards, but is dead handy for embedded.
browses
Oho, they make one which is pin-compatible with SRAM chips!
Price looks like $15 a single part to $12 for ten. Ouch. If we assume that it's about $20 a megabyte in bulk, a gigabyte would cost about $20k. This is, price-wise, equivalent to:
- RAM, in 1996
- Spinning disk, in about 1988
- Flash, in about 1998 (extrapolation, my chart doesn't have nay data before 2004).
The largest devices I've seen are 4Mb (512kB), which isn't a lot by PC standards, but is dead handy for embedded.
browses
Oho, they make one which is pin-compatible with SRAM chips!
http://www.fujitsu.com/global/products/devices/semiconductor...
Price looks like $15 a single part to $12 for ten. Ouch. If we assume that it's about $20 a megabyte in bulk, a gigabyte would cost about $20k. This is, price-wise, equivalent to:
- RAM, in 1996
- Spinning disk, in about 1988
- Flash, in about 1998 (extrapolation, my chart doesn't have nay data before 2004).
Ref: http://www.jcmit.com/memoryprice.htm
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