W9864G6DB Datasheet, PDF (6/48 Pages) Winbond – 1M x 4 BANKS x 16 BITS SDRAM

6. BLOCK DIAGRAM
W9864G6DB
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
COLUMN DECODER
CELL ARRAY
BANK #3
SENSE AMPLIFIER
DQ0
DQ15
UDQM
LDQM
NOTE:
The cell array configuration is 2048 * 256 * 32
-6-