Memory Module Specification
KVR266S4R25/512I
512MB 64M x 72-Bit DDR266 CL2.5
Registered ECC 184-Pin DIMM
DESCRIPTION:
This document describes ValueRAM's 64M x 72-bit (512MB) DDR266 CL2.5 SDRAM
(Synchronous DRAM) "single rank" Registered ECC "Intel
®
Certified" memory module.
The components on this module include eighteen 64M x 4-bit (16M x 4-bit x 4 Bank)
DDR266 components in TSOP packages. This 184-pin DIMM uses gold contact fingers and
requires +2.5V. The electrical and mechanical specifications are as follows:
FEATURES:
Clock Cycle Time (tCK)
Row Cycle Time (t
RC
)
Refresh Row Cycle Time (tRFC)
Row Active Time (tRAS)
Single Power Supply of
Power
UL Rating
7.5ns (min.) / 12ns (max.)
65ns (min.)
75ns (min.)
45ns (min.) / 120,000ns (max.)
+2.5V (+/- .2V)
5.175 W (operating)
94 V - 0
Note:
The module defined in this data sheet is one of several configurations available under this part number. While
all configurations are compatible, the DRAM combination and/or the module height may vary from what is described
here. However, in no configuration will the module height exceed 1.250" (31.75mm).
Figure 1: KVR266S4R25/512I 184-Pin DIMM
Document No. VALUERAM0403-001.A00
03/24/05
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