Extended Data Out Dynamic Random Access Memory

storage (EDO DRAM, EDO RAM) A type of DRAM designed to

access nearby memory locations faster than FPM DRAM.

Extended Data Out DRAM (EDO-DRAM) allows the data outputs to

be kept active after the CAS signal goes inactive, using an

additional signal OE to control the data outputs. This can

be used in pipelined systems for overlapping accesses where

the next cycle is started before the data from the last cycle

is removed from the bus.

EDO DRAM is primarily used with Intel's Pentium processors

since with slower processors there is no significant

performance gain. To make use of the advanced features of EDO

an appropriate chipset, such as Triton, must be used. In

early 1995, EDO DRAM was available for computers from

Micron, Gateway 2000, and Intel Corporation; since then

other manufactures followed suit.

Note that in comparison to Burst EDO EDO is sometimes

referred to as "Standard EDO".

(1996-06-25)