Kingston Technology Memory 512MB 400MHz DDR RegECC CL3 KVR400S4R3A/512 Data Sheet
Product codes
KVR400S4R3A/512
Memory Module Specification
DESCRIPTION:
This document describes ValueRAM's 64M x 72-bit (512MB) DDR400 CL3 SDRAM (Syn-
chronous DRAM) "single rank" Registered ECC memory module. The components on this
module include eighteen 64M x 4-bit (16M x 4-Bit x 4 bank) DDR400 SDRAM in FBGA
packages. This 184-pin DIMM uses gold contact fingers and requires +2.6V. The electrical
and mechanical specifications are as follows:
chronous DRAM) "single rank" Registered ECC memory module. The components on this
module include eighteen 64M x 4-bit (16M x 4-Bit x 4 bank) DDR400 SDRAM in FBGA
packages. This 184-pin DIMM uses gold contact fingers and requires +2.6V. The electrical
and mechanical specifications are as follows:
FEATURES:
Clock Cycle Time (tCK)
5ns (min.) / 10ns (max.)
Row Cycle Time (t
RC
)
55ns (min.)
Refresh Row Cycle Time (tRFC)
70ns (min.)
Row Active Time (tRAS)
40ns (min.) / 70,000ns (max.)
Single Power Supply of
+2.6V (+/- .1V)
Power
5.850 W operating
UL Rating
94 V - 0
Document No. VALUERAM0418-001.A00
05/13/05
Figure 1: KVR400S4R3A/512 184-Pin DIMM
KVR400S4R3A/512
512MB 64M x 72-Bit DDR400 Registered
CL3 ECC 184-Pin DIMM
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 1.200" (30.48mm).
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 1.200" (30.48mm).
A
B
5.25 ± 0.005
5.171
(131.350)
(133.350 ± 0.13)
(3
0.
48
)
1.
2
5.077
(128.950)
0.
39
3
(10.
00
)
0.
10
0
M
in
(2
.5
0
M
in
)
(19.80)
0.78
(1
7.
80)
0.
7
R (2.00)
0.0787
(3.00)
0.118
(2
.3
0
M
in
)
A
B
0.157 Max
0.050 ± 0.0039
(1.270 ± 0.10)
(3.99 Max)
(4
.0
0)
(0
.1
57
)