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6.3.2.5.
SDQ/SDQS Signal Package Lengths
The package length data in Table 22 below should be used to tune the length of each SDQ, SDM, and
SDQS motherboard trace as required to achieve the overall length matching requirements defined in the
prior sections.
Table 22. Memory SDQ/SDM/SDQS Package Lengths
Signal
SDQ_00
SDQ_01
SDQ_02
SDQ_03
SDQ_04
SDQ_05
SDQ_06
SDQ_07
SDQ_08
SDQ_09
SDQ_10
SDQ_11
SDQ_12
SDQ_13
SDQ_14
SDQ_15
SDQ_16
SDQ_17
SDQ_18
SDQ_19
SDQ_20
SDQ_21
SDQ_22
SDQ_23
SDM_0
SDM_1
SDM_2
SDM_3
SDM_4
®
®
Intel
852GME, Intel
852GMV and Intel
Pkg
Pin
Length
Signal
Number
(mils)
AF2
785
SDQ_24
AE3
751
SDQ_25
AF4
690
SDQ_26
AH2
903
SDQ_27
AD3
682
SDQ_28
AE2
739
SDQ_29
AG4
741
SDQ_30
AH3
845
SDQ_31
AD6
607
SDQ_32
AG5
756
SDQ_33
AG7
685
SDQ_34
AE8
558
SDQ_35
AF5
734
SDQ_36
AH4
825
SDQ_37
AF7
644
SDQ_38
AH6
912
SDQ_39
AF8
622
SDQ_40
AG8
624
SDQ_41
AH9
676
SDQ_42
AG10
634
SDQ_43
AH7
710
SDQ_44
AD9
508
SDQ_45
AF10
569
SDQ_46
AE11
469
SDQ_47
AE5
838
SDQS_0
AE6
693
SDQS_1
AE9
538
SDQS_2
AH12
606
SDQS_3
AD19
492
SDQS_4
®
852PM Chipset Platforms Design Guide
System Memory Design Guidelines (DDR-SDRAM)
Pkg
Pin
Length
Signal
Number
(mils)
AH10
648
SDQ_48
AH11
622
SDQ_49
AG13
572
SDQ_50
AF14
655
SDQ_51
AG11
599
SDQ_52
AD12
460
SDQ_53
AF13
536
SDQ_54
AH13
642
SDQ_55
AH16
766
SDQ_56
AG17
558
SDQ_57
AF19
510
SDQ_58
AE20
579
SDQ_59
AD18
408
SDQ_60
AE18
458
SDQ_61
AH18
658
SDQ_62
AG19
596
SDQ_63
AH20
677
SDQ_64
AG20
730
SDQ_65
AF22
562
SDQ_66
AH22
702
SDQ_67
AF20
563
SDQ_68
AH19
644
SDQ_69
AH21
716
SDQ_70
AG22
783
SDQ_71
AG2
925
AH5
838
AH8
756
AE12
466
AH17
678
Pkg
Pin
Length
Number
(mils)
AE23
592
AH23
752
AE24
666
AH25
817
AG23
639
AF23
667
AF25
707
AG25
783
AH26
834
AE26
701
AG28
808
AF28
756
AG26
782
AF26
748
AE27
673
AD27
608
AG14
566
AE14
477
AE17
571
AG16
530
AH14
701
AE15
421
AF16
491
AF17
530
79
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