W641GG2JB Datasheet, PDF (21/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
6.1.3.1 Power Up Sequence
VDD
VDDQ
VREF
tATS tATH
1-Gbit GDDR3 Graphics SDRAM
RES
CKE
CKE#
CLK
Com
DM
A8
BA0,
BA1
RDQS
WDQS
DQ
DES
DES
PA
EMR
MRS
PA
ARF
ARF
ACT
CODE
CODE
RA
All Banks
All Banks
CODE
CODE
RA
BA0=H, BA0=L,
BA1=L BA1=L
RA
min. 200 uS
VDD and
CLK stable
700 cycles
tRP
tMRD
tMRD
tRP
tRFC
tRFC
1000 cycles
MRS:MRS command
With DLL Reset
EMR: EMRS command
DES:Deselect
PA: PREALL command
ARF: AUTO REFRESH command
A.C.: Any command
Don’t Care
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Publication Release Date: Apr, 22, 2011
Revision A01-002