DESCRIPTION
This document describes ValueRAM’s 256M x 64-bit 2GB
(2048MB) CL5 DDR2-667 SDRAM (Synchronous DRAM)
memory module. The components on this module include
sixteen stacked 128M x 8-bit DDR2-667 SDRAM. This 200-
pin SODIMM uses gold contact fingers and requires +1.8V.
The electrical and mechanical specifications are as follows:
SPECIFICATIONS
Clock Cycle Time (tCK) CL=5 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 54ns (min.)
Refresh to Active/Refresh 127.5ns
Command Time (tRFC)
Row Active Time (tRAS) 39ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 1.944 W (operating)
UL Rating 94 V - 0