Internet Data Sheet
HY[B/I]18T1G[40/80/16]0C2[C/F]
1-Gbit Double-Data-Rate-Two SDRAM
TABLE 32
AC Overshoot / Undershoot Specification for Clock, Data, Strobe and Mask Pins
Parameter
DDR2-400
DDR2-533
DDR2-667
DDR2-800
DDR2-1066 Unit
Maximum peak amplitude allowed for
overshoot area
0.9
0.9
0.9
0.9
0.9
V
Maximum peak amplitude allowed for
undershoot area
0.9
0.9
0.9
0.9
0.9
V
Maximum overshoot area above VDDQ
Maximum undershoot area below VSSQ
0.38
0.38
0.28
0.28
0.23
0.23
0.23
0.23
0.19
0.19
V-ns
V-ns
FIGURE 7
AC Overshoot / Undershoot Diagram for Clock, Data, Strobe and Mask Pins
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2YHUVKRRWꢌ$UHD
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0D[LPXPꢌ$PSOLWXGHꢌꢌ
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03(7ꢀꢆꢇꢀ
Rev. 1.02, 2008-01
37
09262007-3YK7-BKKG
QIMONDA [ QIMONDA AG ]
