Kingston KHX6400D2K24G User Manual

TECHNOLOGY

Memory Module Specification

KHX6400D2K2/4G

4GB (2GB 256M x 64-Bit x 2 pcs.)

DESCRIPTION:

Kingston's KHX6400D2K2/4G is a kit of two 256M x 64-bit 2GB (2048MB) DDR2-800 CL5
SDRAM (Synchronous DRAM) memory modules, based on sixteen 128M x 8-bit DDR2 FBGA
components. Total kit capacity is 4GB (4096MB). Each module pair has been tested to run at DDR2
800MHz at latency timing of 5-5-5-15 at 1.85V. The SPD is programmed to JEDEC standard latency
667Mhz timing of 5-5-5-15 at 1.8V. Each 240-pin 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: 5-5-5-15 at +1.8V / 5-5-5-15 at +1.85V
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

PC2-6400 CL5 240-Pin DIMM Kit

PERFORMANCE:

Clock Cycle Time (tCK) CL=5 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 60ns (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 2.016 W (operating per module)
UL Rating 94 V - 0

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

Y

G

O

L

O

N

H

C

Y

G

E

O

T

L

O

N

H

C

E

T

Keyed

Document No. 4804737-001.B00

08/09/07

Page 1

MODULE DIMENSIONS:

Kingston Technology

Units: millimeters

5.00

4.00

2.50

1.50±0.10

4.00

3.80

2.50±0.20

1.00

2.7

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.

Document No. 4804737-001.B00 Page 2