[sdiy] How to use DRAM ?

[Michael Buchstaller]

as most other people, i have some 30- and 72-pin PC Memory
modules lying around. (4 MB...32 MB each)

Modern mainboards all wants DIMM´s, and everybody is throwing
out old 486 and early pentiums with such SIMM memory in them.

My idea is to use them in a sampling module or maybe a digital
delay.
But how does one access this RAM ? I have done simple things with
SRAM´s, but if i remember correctly, DRAM´s need some sort of
refreshing, and have to be re-written after reading.
How does one do this ? Has anybody used DRAM´s in a project
successfully? (without special SMD memory controllers of course)


-Michael Buchstaller