In SX Microcontrollers, SX/B Compiler and SX-Key Tool, kmonsx wrote:

I've found that using Ramtron's serial FRAM is very nice and easy.

Fast serial speeds, max speed is upwards of 15-25 mbps

uses only a few pins (parallel memory can eat pins like crazy)

non-volatile w/ no battery backup

easy to write to in SX/B or asm

Largest capacity is about 32k bytes, but you can use multiple chips in parallel all sharing a bus

[url=http://www.ramtron.com/doc/Products/serial.asp]http://www.ramtron.com/doc/Products/serial.asp[/url]

I'm using one of the FM25256 in a project right now at about 7mbps and it works perfectly.

Keith

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