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Internet Data Sheet
HYB18T512161B2F–20/25
512-Mbit Double-Data-Rate-Two SDRAM
TABLE 27
AC Overshoot / Undershoot Specification for Clock, Data, Strobe and Mask Pins
Parameter
–20
–25
Unit
Maximum peak amplitude allowed for overshoot area
Maximum peak amplitude allowed for undershoot area
Maximum overshoot area above VDDQ
0.9
0.9
V
0.9
0.9
V
0.23
0.23
0.23
0.23
V.ns
V.ns
Maximum undershoot area below VSSQ
FIGURE 5
AC Overshoot / Undershoot Diagram for Clock, Data, Strobe and Mask Pins
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Rev. 1.1, 2007-06
24
05152007-ZYAH-ACMZ
Date: 2008-02-26
QIMONDA [ QIMONDA AG ]
