W942508CH Datasheet, PDF (7/47 Pages) Winbond – 8M x 4 BANKS x 8 BIT DDR SDRAM

6. BLOCK DIAGRAM
CLK
CLK
CKE
DLL
CLOCK
BUFFER
CS
RAS
CAS
WE
COMMAND
DECODER
CONTROL
SIGNAL
GENERATOR
A10
A0
A9
A11
A12
BA1
BA0
ADDRESS
BUFFER
MODE
REGISTER
REFRESH
COUNTER
COLUMN
COUNTER
COLUMN DECODER
CELL ARRAY
BANK #0
SENSE AMPLIFIER
PREFETCH REGISTER
DATA CONTROL
CIRCUIT
COLUMN DECODER
CELL ARRAY
BANK #2
SENSE AMPLIFIER
W942508CH
COLUMN DECODER
CELL ARRAY
BANK #1
SENSE AMPLIFIER
DQ
BUFFER
COLUMN DECODER
CELL ARRAY
BANK #3
SENSE AMPLIFIER
DQ0
DQ7
DQS
DM
NOTE:
The cell array configuration is 8912 * 1024 * 8
Publication Release Date: May 21, 2003
-7-
Revision A3