>At 12:54 1998-03-09 -0500, Mike Keitz wrote: >But DRAM is no good for battery backup since they draw some current. Depends on how much current you define as 'some current' - Get a good brand 1M x 1, 4M x 1 or 16M x 1 into battery back-up, or self refresh mode and you're talking 100uA, 150uA or 250uA Max (for each size respectively). Same for the x8 and x16. OK, they guzzle juice if you're accessing at 25MHz! Steve Lawther http://ourworld.compuserve.com/homepages/steve_lawther/ucindex.htm