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HYS72T64000HP-25F Datasheet, PDF (24/65 Pages) Qimonda AG – 240-Pin Registered DDR2 SDRAM Modules | |||
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Internet Data Sheet
HYS72T[64/128/256]xxxHPâ[25F/2.5/3/3S/3.7]âB
240-Pin Registered DDR2 SDRAM
FIGURE 2
Method for calculating transitions and endpoint
W+=
W536 7 H QG SRLQW
92+ [P9
92+ [P9
92/ [P9
92/ [P9
7 7
W+=W536 7 HQG SRLQ W
77
977[P9
977[P9
977[P 9
977[P9
W/=
W53 5(EHJLQSRLQW
7 7
W/=W535( E HJLQ SRLQ W
7 7
'46
'46
FIGURE 3
Differential input waveform timing - tDS and tDS
W'6 W'+
W'6 W'+
9' '4
9,+DF PLQ
9,+GF PLQ
95 ()GF
9,/GF PD[
9,/DF PD[
96 6
FIGURE 4
Differential input waveform timing - tlS and tlH
&.
&.
W,6 W,+
W,6 W,+
9' '4
9,+DF PLQ
9,+GF PLQ
95 ()GF
9,/GF PD[
9,/DF PD[
96 6
Rev. 1.1, 2007-03
24
03292006-EO3M-LEK7
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