Marantz SA12 - Functional Block Diagram; 1 Meg X 16 SDRAM

162
16Mb: x16
SDRAM
11
11
11
RAS#
REFRESH
CONTROLLER
2,048
REFRESH
COUNTER
CAS#
256
256 (x16)
8
COLUMN-
ADDRESS BUFFER
BURST COUNTER
ROW-
ADDRESS
MUX
CLK
CS#
WE#
CKE
256 (x16)
BANK1
MEMORY
ARRAY
(2,048 x 256 x 16)
SENSE AMPLIFIERS
I/O GATING
DQM MASK LOGIC
CONTROL
LOGIC
COLUMN
DECODER
COLUMN-
ADDRESS LATCH
8
MODE REGISTER
ROW-
ADDRESS
LATCH
11
ROW
DECODER
11
COMMAND
DECODE
DQ0-
DQ15
A0-A10, BA
16
8
DQML,
DQMH
256
2,048
BANK0
MEMORY
ARRAY
(2,048 x 256 x 16)
ROW
DECODER
ROW-
ADDRESS
LATCH
11
12
ADDRESS
REGISTER
12
SENSE AMPLIFIERS
I/O GATING
DQM MASK LOGIC
DATA
INPUT
REGISTER
DATA
OUTPUT
REGISTER
16
16
FUNCTIONAL BLOCK DIAGRAM
1 Meg x 16 SDRAM