HYB18T512161B2F Datasheet, PDF (24/37 Pages) Qimonda AG – 512-Mbit x16 DDR2 SDRAM

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 V_DDQ
Maximum undershoot area below V_SSQ
0.9
0.9
V
0.9
0.9
V
0.23
0.23
V.ns
0.23
0.23
V.ns
FIGURE 5
AC Overshoot / Undershoot Diagram for Clock, Data, Strobe and Mask Pins
0D[LP XP$PSOLWXGH
2YH UVK RRW$UH D
9'' 4
966 4 
0D[LP XP$PSOLWXGH
7LP HQV
8Q GHUV KRRW$ UH D
Rev. 1.1, 2007-06
24
05152007-ZYAH-ACMZ