kingston KHX6400D2-2G User Manual
Memory Module Specications
KHX6400D2/2G
2GB 256M x 64-Bit PC2-6400
CL5 240-Pin DIMM
SPECIFICATIONS
Clock Cycle Time (tCK) CL=5 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 60ns (min.)
Refresh to Active/Refresh 127.5ns
Command Time (tRFC)
Row Active Time (tRAS) 45ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 2.016 W (operating)
UL Rating 94 V - 0
Operating Temperature 0° C to 55° C
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. This module 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. This 240-pin DIMM uses gold contact
ngers and requires +1.8V. The electrical and mechanical
specications are as follows:
Storage Temperature -55° C to +125° C
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
Continued >>
Kingston.com Document No. 4804728-001.C00 07/18/11 Page 1
continued HyperX
MODULE DIMENSIONS:
FOR MORE INFORMATION, GO TO WWW.KINGSTON.COM
All Kingston products are tested to meet our published specications. Some motherboards or system congurations 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.
Kingston.com Document No. 4804728-001.C00 07/18/11 Page 2
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