Kingston KHX6400D2B1-2G, KHX6400D2B2G User Manual

TECHNOLOGY

Memory Module Specification

KHX6400D2B1/2G

2GB 256M x 64-Bit PC2-6400

DESCRIPTION:

This document describes Kingston's 256M x 64-bit 2GB (2048MB) DDR2-800 CL5 SDRAM
(Synchronous DRAM) memory module, based on sixteen 128M x 8-bit DDR2 FBGA components.
The SPD is programmed to JEDEC standard latency 800MHz timing of 5-5-5-15 at 1.8V. This 240­pin DIMM uses gold contact fingers and requires +1.8V. The electrical and mechanical specifica­tions are as follows:

FEATURES:

Power supply : Vdd: 1.8V ± 0.1V, Vddq: 1.8V ± 0.1V
Double-data-rate architecture; two data transfers per clock cycle
Bidirectional data strobe(DQS)
Differential clock inputs(CK and CK)
DLL aligns DQ and DQS transition with CK transition
Programmable Read latency 5 (clock)
Burst Length: 4, 8 (Interleave/nibble sequential)
Programmable Burst type (sequential & interleave)
Timing Reference: 800MHz 5-5-5-15 at +1.8V
Edge aligned data output, center aligned data input
Auto & Self refresh, 7.8us refresh interval (8K/64ms refresh)
Serial presence detect with EEPROM
High Performance Heat Spreader
PCB : Height 1.180” (30.00mm), double sided component

CL5 240-Pin DIMM

PERFORMANCE:

Clock Cycle Time (tCK) CL=5 2.5ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 57.5ns (min.)
Refresh to Active/Refresh Command Time (tRFC) 127.5ns
Row Active Time (tRAS) 45ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 1.225 W (operating)
UL Rating 94 V - 0

Operating Temperature 0o C to 55o C
Storage Temperature -55o C to +125o C

Document No. 4805598-001.A00

05/21/10

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MODULE DIMENSIONS:

Units: millimeters

Kingston Technology

2.7

5.00

4.00

2.50

1.50±0.10

w/ Heatsink Assembly

4.00

3.80

2.50±0.20

1.00

1.270 ± 0.10

3.00

0.80±0.05

0.20

4.00

For more information, go to www.kingston.com

All Kingston products are tested to meet our published specifications. Some motherboards or system configurations may not
operate at the published HyperX memory speeds and timing settings. Kingston does not recommend that any user attempt to
run their computers faster than the published speed. Overclocking or modifying your system timing may result in damage to
computer components.

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