MT48LC16M16A2TG-75ITD Datasheet, PDF (9/86 Pages) Micron Technology – 256Mb: x4, x8, x16 SDRAM

Figure 2: 32 Meg x 8 Functional Block Diagram
256Mb: x4, x8, x16 SDRAM
Functional Block Diagrams
CKE
CLK
CS#
WE#
CAS#
RAS#
CONTROL
LOGIC
BANK3
BANK2
BANK1
MODE REGISTER
12
A[12:0]
BA[1:0]
15
ADDRESS
REGISTER
REFRESH
COUNTER
13
ROW-
13
ADDRESS
MUX
13
BANK0
ROW-
ADDRESS
LATCH
&
DECODER
8192
BANK0
MEMORY
ARRAY
(8192 x 1024 x 8)
SENSE AMPLIFIERS
8192
2
BANK
CONTROL
2
LOGIC
COLUMN-
ADDRESS
10
10
COUNTER/
LATCH
I/O GATING
DQM MASK LOGIC
READ DATA LATCH
WRITE DRIVERS
1024
(x8)
COLUMN
DECODER
1
1
DATA
8
OUTPUT
REGISTER
8
DATA
8
INPUT
REGISTER
DQM
DQ[7:0]
PDF: 09005aef8091e6d1
256Mb_sdr.pdf - Rev. S 12/12 EN
9
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