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DESCRIPTION:
This document describes ValueRAM's 64M x 64-bit (512MB) DDR2-400 CL3 SDRAM
( Synchronous DRAM) memory module. The components on this module include eight
64M x 8-bit (16M x 8-bit x 4 Bank) DDR2-400 SDRAM in FBGA packages. This 240-pin
DIMM uses gold contact fingers and requires +1.8V. The electrical and mechanical
specifications are as follows:
FEATURES:
Clock Cycle Time (tCK) CL=3 5ns (min.) / 8ns (max.)
Row Cycle Time (t RC) 55ns (min.)
Refresh to Active/Refresh Command Time (tRFC) 105ns
Row Active Time (tRAS) 40ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 1.368 W (operating)
UL Rating 94 V - 0 | 
