Kingston KHX6400D21G User Manual

TECHNOLOGY

Memory Module Specification

KHX6400D2/1G

1GB 128M x 64-Bit PC2-6400

CL5 240-Pin DIMM

DESCRIPTION:

This document describes Kingston's 128M x 64-bit 1GB (1024MB) DDR2-800 CL5 SDRAM
(Synchronous DRAM) memory module, based on sixteen 64M x 8-bit DDR2 FBGA components.
This module has been tested to run at DDR2 800MHz at low latency timing of 5-5-5-15 at 2.0V. 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 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 +2.0V
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

PERFORMANCE:

Clock Cycle Time (tCK) CL=5 3ns (min.) / 8ns (max.)
Row Cycle Time (tRC) 54ns (min.)
Refresh to Active/Refresh Command Time (tRFC) 105ns
Row Active Time (tRAS) 39ns (min.) / 70,000ns (max.)
Single Power Supply of +1.8V (+/- .1V)
Power 1.922 W (operating)
UL Rating 94 V - 0

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

Document No. 4804264-001.D00

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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.

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