W9864G2GH Datasheet, PDF (7/46 Pages) Winbond – 512K X 4 BANKS X 32BITS SDRAM

6. BLOCK DIAGRAM
W9864G2GH
CLK
CKE
CS
RAS
CAS
WE
CLOCK
BUFFER
COMMAND
DECODER
CONTROL
SIGNAL
GENERATOR
A10
A0
MODE
REGISTER
ADDRESS
A9
BUFFER
BS0
BS1
REFRESH
COUNTER
COLUMN
COUNTER
COLUMN DECODER
CELL ARRAY
BANK #0
SENSE AMPLIFIER
DATA CONTROL
CIRCUIT
COLUMN DECODER
CELL ARRAY
BANK #2
SENSE AMPLIFIER
COLUMN DECODER
CELL ARRAY
BANK #1
SENSE AMPLIFIER
DQ
BUFFER
DQ0
DQ31
DQM0~3
COLUMN DECODER
CELL ARRAY
BANK #3
SENSE AMPLIFIER
NOTE:
The cell array configuration is 2048 * 256 * 32
Publication Release Date:Aug. 13, 2007
-7-
Revision A09