Kingston Technology 8GB, 800MHz, DDR2, Non-ECC, Low-Latency, CL4 (4-4-4-12), DIMM (Kit of 4) KHX6400D2LLK4/8G Data Sheet

Memory Module Specifications

8GB (2GB 256M x 64-Bit x 4 pcs.)
PC2-6400 CL4 240-Pin DIMM Kit

Kingston.com

Document No. 4804680-001.C00    07/18/11    Page 1

Kingston’s KHX6400D2LLK4/8G is a kit of four low-latency 
256M x 64-bit 2GB (2048MB) DDR2-800 CL4 SDRAM 
(Synchronous DRAM) memory modules, based on sixteen 
128M x 8-bit DDR2 FBGA components per module. Total kit 
capacity is 8GB (8192MB). Each module kit has been tested 
to run at DDR2 800MHz at low latency timing of 4-4-4-12 
at 1.95V. The SPDs are 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:

Clock Cycle Time (tCK) CL=5  

3ns (min.) / 8ns (max.)

Row Cycle Time (tRC)  

54ns (min.)

Refresh to Active/Refresh  

127.5ns 

Command Time (tRFC)

Row Active Time (tRAS)  

39ns (min.) / 70,000ns (max.)

Single Power Supply of  

+1.8V (+/- .1V)

Power  

2.592 W (operating per module)

UL Rating  

94 V - 0

Operating Temperature  

0° C to 55° C

Storage Temperature  

-55° C to +125° C

•  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 3, 4, 5 (clock)
•  Burst Length: 4, 8 (Interleave/nibble sequential)
•  Programmable Burst type (sequential & interleave)
•  Timing Reference: 667MHz 5-5-5-15 at +1.8V / 800MHz  

4-4-4-12 at +1.95V

•  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

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