W641GG2JB Datasheet, PDF (37/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

6.5.1.1 Output Deiver simplified schematic
Read to other Rank
Output Data
Read to other Enable
W641GG2JB
1-Gbit GDDR3 Graphics SDRAM
VDDQ
DQ
VSSQ
6.5.1.2 Range of external resistance ZQ
Parameter
External resistance value
Symbol
ZQ
Min.
210
6.5.1.3 Termination Types and Activation
Ball
CLK, CLK#, RDQS[0:3], ZQ, RES, MF
CKE, CS0#, CS1#, RAS#, CAS#, WE#, BA0 - BA2 , A[0:11], A[12]
DM[0:3], WDQS[0:3]
DQ[0:31]
Nom.
240
Max.
270
Units
Ω
Note
Termination type
No termination
Add / CMDs
DQ
DQ
Termination activation
Always ON
Always ON
CMD bus snooping
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Publication Release Date: Apr, 22, 2011
Revision A01-002