MT46V128M4 データシートの表示（PDF） - Micron Technology
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MT46V128M4 Datasheet PDF : 91 Pages
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Figure 4: 64 Meg x 8 Functional Block Diagram
512Mb: x4, x8, x16 DDR SDRAM
Functional Block Diagrams
CKE
CK#
CK
CS#
WE#
CAS#
RAS#
CONTROL
LOGIC
BANK3
BANK2
BANK1
MODE REGISTERS
15
A0–A12,
BA0, BA1
15
ADDRESS
REGISTER
REFRESH 13
COUNTER
ROW-
13
ADDRESS
MUX
13
BANK0
ROW-
ADDRESS
LATCH
&
DECODER
8192
BANK0
MEMORY
ARRAY
(8,192 x 1,024 x 16)
SENSE AMPLIFIERS
16384
2
BANK
CONTROL
LOGIC
2
COLUMN-
ADDRESS
10
11
COUNTER/
LATCH
1
I/O GATING
DM MASK LOGIC
1024
(x16)
COLUMN
DECODER
CK
8
16
READ
LATCH 8
MUX
DATA
DLL
8
DQS
GENERATOR
DRVRS
1
COL0
INPUT
DQS
16
REGISTERS
1
MASK
WRITE
1
16
FIFO
2
&
DRIVERS
8
16
CK CK
8
Out
In DATA
1
1
1
RCVRS
8
8
8
CK
1
COL0
DQ0–DQ7
DQS
DM
Figure 5: 32 Meg x 16 Functional Block Diagram
CKE
CK#
CK
CS#
WE#
CAS#
RAS#
CONTROL
LOGIC
REFRESH
COUNTER
13
BANK3
BANK2
BANK1
A0–A12,
BA0, BA1
MODE REGISTERS
15
13
15
ADDRESS
REGISTER
ROW-
13
ADDRESS
MUX
BANK0
ROW-
ADDRESS
LATCH
&
DECODER
8192
BANK0
MEMORY
ARRAY
(8,192 x 512 x 32)
SENSE AMPLIFIERS
16384
2
BANK
CONTROL
LOGIC
2
COLUMN-
ADDRESS
9
10
COUNTER/
LATCH
1
I/O GATING
DM MASK LOGIC
512
(x32)
COLUMN
DECODER
CK
16
32
READ
MUX
LATCH 16
DATA
DLL
16
DQS
GENERATOR
DRVRS
2
COL0
INPUT
DQS
32
REGISTERS
2
MASK
WRITE
32
FIFO
&
DRIVERS
2
4
16
32
CK
CK
16
Out
In DATA
2
2
2
RCVRS
16
16
16
CK
2
COL0
DQ0–DQ15
LDQS, UDQS
LDM, UDM
PDF: 09005aef80a1d9d4/Source: 09005aef82a95a3a
512Mb_DDR_x4x8x16_D2.fm - 512Mb DDR: Rev. N; Core DDR Rev. B 2/09 EN
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