Kingston KVR266X72RC25L2G User Manual

Memory Module Specification

KVR266X72RC25L/2G

2GB 256 x 72-Bit DDR266 Registered

Low-Profile CL2.5 ECC 184-Pin DIMM

DESCRIPTION:

This document describes ValueRAM's 256M x 72-bit (2GB) DDR266 CL2.5 SDRAM (Syn­chronous DRAM) registered ECC low-profile memory module. The components on this
module include eighteen stacked 256M x 4-bit (thirty-six 128M x 4-Bit) DDR266 SDRAM.
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) 7.5ns (min.) / 12ns (max.)
Row Cycle Time (tRC) 65ns (min.)
Refresh Row Cycle Time (tRFC) 75ns (min.)
Row Active Time (tRAS) 45ns (min.) / 120,000ns (max.)
Single Power Supply of +2.5V (+/- .25V)
Power 12.550 W operating
UL Rating 94 V - 0
Operating Temperature 0o C to 70o C
Storage Temperature -55o C to +125o C

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).

1.200

(30.48)

(17.80)

0.700

0.393

(10.00)

0.000

(00.00)

1

0.000

(00.00)

0.26

(6.62)

2.175

0.250

(6.350)

0.071
(1.80)

Units : Inches (Millimeters)

0.157
(4.00)

0.1496
(3.80)

2.886

(73.30)

0.118

0.0787
(2.00)

0.1575

(3.00)

(4.00)

0.039 ± 0.002

(1.000 ± 0.050)

0.100

(2.50 )

0.0078 ±0.006

(0.20 ±0.15)

0.050

(1.270)

5.250
(133.35)

Figure 1: KVR266X72RC25L/2G 184-Pin DDR SDRAM Module

Document No. VALUERAM0272-001.B00

05/15/05