Memory Module Specification
KVR266X64SC25/512
DESCRIPTION:
This document describes ValueRAM's 64M x 64-bit (512MB) CL2.5 SDRAM (Synchronous
DRAM) DDR266 memory module. The components on this module include sixteen
32M x 8-bit (8M x 8-bit x 4 Bank / 133MHz, 7.5ns, CL2.5) DDR266 SDRAM in uBGA
packages. This 200-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
Operating (IDD0)
UL Rating
7.5ns (min.) / 12ns (max.)
65ns (min.)
75ns (min.)
45ns (min.) / 120,000ns (max.)
+2.5V (+/- .25V)
2.900 W
94 V - 0
512MB 64M x 64-Bit DDR266
CL2.5 200-Pin SODIMM
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).
2.66
(67.60)
2.50
(63.60)
0.16
鹵
0.039
(4.00
鹵
0.10)
Full R 2x
0.24
(6.0)
1
39 41
199
0.086
2.15
0.456
11.40
0.07
(1.8)
0.098
2.45
2
40 42
0.17
(4.20)
0.096
(2.40)
Z
1.896
(47.40)
Units : Inches (Millimeters)
Y
200
Tolerances :
鹵.006(.15)
unless otherwise specified
Figure 1: KVR266X64SC25/512 200-Pin DDR266
Document No. VALUERAM0249-001.A00
06/12/02
0.79
(20.00)
2-
f
0.07
(1.80)
1.25
(31.75)
1
