W641GG2JB Datasheet, PDF (17/109 Pages) Winbond – 1-Gbit GDDR3 Graphics SDRAM

W641GG2JB
1-Gbit GDDR3 Graphics SDRAM
5.3 Functional Block Diagram in 2-CS Mode
A0-A7,A9, A8/AP, A10-A11
BA0-BA2
Address Buffer
A8/AP
Row Addresses A0-A11, BA0-BA2
Refresh
Counter
Row Address Buffer
Column Addresses A2-A7,A9
Column Address Buffer
/CS1
/CS0
/RAS
/CAS
/WE
RES
MF
ZQ
CKE
CLK
/CLK
Row
Decoder
Memory
Bank 4
Memory
Array
Back 0
4096
X512
X32 bit
Row
Decoder
Memory
Bank 5
Memory
Array
Back 1
4096
X512
X32 bit
Row
Decoder
Memory
Bank 6
Memory
Array
Back 2
4096
X512
X32 bit
Row
Decoder
Memory
Bank 7
Memory
Array
Back 3
4096
X512
X32 bit
DLL
Output Buffers
Input Buffers
DQ0-DQ7 DQ8-DQ15 DQ16-DQ23 DQ24-DQ31
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Publication Release Date: Apr, 22, 2011
Revision A01-002