I just ordered samples ... so I hope they're available. They (the 256 kbit parts) are, in fact, 5-volt parts, though I'm looking at some larger-capacity (2MB) versions that are 3 volt types.

These 5-volt parts are fast enough (20 MHz) to do the job and, since there's no need to wait for a page write during programming, there are benefits for that task, in that I can use the device to sample the waveform I want to store, hence, don't have to process it in any way. The "normal" flash requires one to wait for a few milliseconds while it updates the page when writing, and, while it's not difficult to process that mode, it is MUCH quicker and easier simply to capture a sample.

A small PLD (16V8 or 22V10) can provide the necessary commands and control the process adequately. What I believe I can do with the FRAM part is generate the command and address (0x0000), then halt the clock until a start strobe occurs, which starts the clock again and routes the source data. An external stop strobe ends the sampling process.

I know there's many a slip 'twixt cup and lip, but this looks pretty reasonable.

RE