W641GG2JB Datasheet, PDF (59/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
6.13.1.3 Basic Write Burst / DM Timing
1-Gbit GDDR3 Graphics SDRAM
CLK#
CLK
nominal WDQS
WDQS
DQ
DMx
early WDQS
WDQS
late WDQS
WDQS
tDQSS
tWPRE
tDQSH
Preamble ^{tDS tDH}
tDQSL
tDQSH
tWPST
tDS tDH _Postamble
tDIPW
D0 D1 D2
tDS tDH
Data masked
min(tDQSS)
D3
tDIPW
Data masked
max(tDQSS)
Don‘t care
DMx:Represents one DM line
Note: WDQS can only transition when data is applied at the chip input and during pre- and postambles.
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Publication Release Date: Apr, 22, 2011
Revision A01-002