HYB18T512400B2C Datasheet, PDF (37/69 Pages) Qimonda AG – 512-Mbit Double-Data-Rate-Two SDRAM

Internet Data Sheet
HY[B/I]18T512[40/80/16]0B2[C/F](L)
512-Mbit Double-Data-Rate-Two SDRAM
TABLE 37
AC Overshoot / Undershoot Spec. for Clock, Data, Strobe and Mask Pins
Parameter
DDR2-400 DDR2-533 DDR2-667 DDR2-800 Unit
Maximum peak amplitude allowed for overshoot area 0.9
0.9
0.9
0.9
V
Maximum peak amplitude allowed for undershoot area 0.9
0.9
0.9
0.9
V
Maximum overshoot area above V_DDQ
Maximum undershoot area below V_SSQ
0.38
0.28
0.23
0.23
V.ns
0.38
0.28
0.23
0.23
V.ns
FIGURE 7
AC Overshoot / Undershoot Diagram for Clock, Data, Strobe and Mask Pins
0D[LPXP$PSOLWXGH
9ROWV9
2YHUVKRRW$UHD
9_''4
0D[LPXP$PSOLWXGH
9₆₆₄
8QGHUVKRRW$UHD
7LPHQV
03(7
Rev. 1.12, 2007-05
37
10062006-YPTZ-CDR7