W981208BH Datasheet, PDF (4/41 Pages) Winbond – 4M x 4 BANKS x 8 BIT SDRAM

BLOCK DIAGRAM
CLK
CKE
CLOCK
BUFFER
CS
RAS
CAS
WE
COMMAND
DECODER
CONTROL
SIGNAL
GENERATOR
A10
A0
A9
A11
BS0
BS1
ADDRESS
BUFFER
MODE
REGISTER
REFRESH
COUNTER
COLUMN
COUNTER
COLUMN DECODER
CELL ARRAY
BANK #0
SENSE AMPLIFIER
DATA CONTROL
CIRCUIT
COLUMN DECODER
CELL ARRAY
BANK #2
SENSE AMPLIFIER
W981208BH
COLUMN DECODER
CELL ARRAY
BANK #1
SENSE AMPLIFIER
DQ
BUFFER
COLUMN DECODER
CELL ARRAY
BANK #3
SENSE AMPLIFIER
DQ0
DQ7
DQM
Note: The cell array configuration is 4096 * 1024 * 8
-4-