Memory Module Specification
KVR667D2D4P5/4G
4GB 512M x 72-Bit DDR2-667
CL5 Registered w/Parity 240-Pin DIMM
DESCRIPTION:
This document describes ValueRAM's 512M x 72-bit 4GB (4096MB) DDR2-667 CL5 SDRAM
(Synchronous DRAM) "dual rank" Registered w/Parity memory module. The components on
this module include eighteen stacked 512M x 4-Bit (thirty-six 256M x 4-bit) DDR2-667 SDRAM.
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=5 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 54ns (min.)
Refresh to Active/Refresh Command Time (tRFC) 127.5ns
Row Active Time (tRAS) 39ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 5.940 W (operating)
UL Rating 94 V - 0
Figure 1: KVR667D2D4P5/4G 240-Pin DIMM
Document No. VALUERAM0527-001.A00
12/06/06