mt46v128m4bn Micron Semiconductor Products, mt46v128m4bn Datasheet - Page 6

• Manufacturer Part Number: mt46v128m4bn
• Description: 512mb X4, X8, X16 Ddr Sdram
• Manufacturer: Micron Semiconductor Products

Functional Block Diagrams
Figure 3:
PDF: 09005aef80a1d9d4/Source: 09005aef82a95a3a
512Mb_DDR_x4x8x16_D2.fm - 512Mb DDR: Rev. L; Core DDR Rev. A 4/07 EN
BA0, BA1
A0–A12,
RAS#
CAS#
WE#
CKE
CK#
CS#
CK
15
128 Meg x 4 Functional Block Diagram
ADDRESS
REGISTER
MODE REGISTERS
CONTROL
LOGIC
15
The 512Mb DDR SDRAM is a high-speed CMOS, dynamic random-access memory
containing 536,870,912 bits. It is internally configured as a 4-bank DRAM.
COUNTER
REFRESH
13
12
2
13
ADDRESS
2
ROW-
MUX
COLUMN-
COUNTER/
CONTROL
ADDRESS
LOGIC
LATCH
BANK
13
DECODER
ADDRESS
BANK0
LATCH
ROW-
&
11
1
8192
SENSE AMPLIFIERS
(8,192 x 2,048 x 8)
DM MASK LOGIC
I/O GATING
DECODER
MEMORY
COLUMN
6
BANK0
ARRAY
2048
(x8)
BANK1
BANK2
16384
BANK3
Micron Technology, Inc., reserves the right to change products or specifications without notice.
8
8
512Mb: x4, x8, x16 DDR SDRAM
8
LATCH
READ
Out
CK
CK
DRIVERS
WRITE
FIFO
4
4
&
Functional Block Diagrams
CK
In
MUX
COL0
MASK
DATA
COL0
8
2
1
1
4
4
GENERATOR
REGISTERS
©2000 Micron Technology, Inc. All rights reserved.
INPUT
DQS
4
1
1
4
4
DATA
1
1
4
DQS
1
DRVRS
CK
DLL
RCVRS
DQ0–DQ3
DQS
DM