ETC KVR266X72C2/256

Memory Module Specification
KVR266X72C2/256
CL2 DDR266 SDRAM 184-Pin ECC
Dual In-Line Memory Module (DIMM)
DESCRIPTION:
This document describes ValueRAM's 32M x 72-bit (256MB), CAS Latency 2 (CL2)
SDRAM (Synchronous DRAM) DDR266 ECC memory module. The components on this
module include eighteen 16M x 8-bit (4M x 8-bit x 4 Bank / 133MHz, 7.5ns, CL2
components) DDR SDRAM 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 (tRC)
Refresh Row Cycle Time (tRFC)
Row Active Time (tRAS)
Single Power Supply of
Power (IDD1)
UL Rating
7.5ns (min.) / 12ns (max.)
65ns (min.)
75ns (min.)
45ns (min.) / 120Kns (max.)
+2.5V (+/- .25V)
3.937 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).
Units : Inches (Millimeters)
1.250”
(31.75)
(17.80)
0.700”
0.393”
(10.00)
0.250
(6.350)
0.157
(4.00)
0.1496
(3.80)
2.175
0.071
(1.80)
0.100
0.26
(6.62)
(2.50 )
2.886”
(73.30)
5.250”
(133.35)
1
0.000”
(00.00)
0.000”
(00.00)
0.118
(3.00)
0.039 ± 0.002
(1.000 ± 0.050)
0.0787
(2.00)
0.0078 ±0.006
(0.20 ±0.15)
0.050
(1.270)
0.1575
(4.00)
Figure 1: KVR266X72C2/256 184-Pin DDR SDRAM Module
Document No. VALUERAM0235-001.A00
03/12/02