mt47h64m16hw-3 Micron Semiconductor Products, mt47h64m16hw-3 Datasheet - Page 7

• Manufacturer Part Number: mt47h64m16hw-3
• Description: 1gb X4, X8, X16 Ddr2 Sdram
• Manufacturer: Micron Semiconductor Products

Functional Block Diagrams
Figure 3:
PDF: 09005aef821ae8bf/Source: 09005aef821aed36
1Gb_DDR2_x4x8x16_D2.fm - 1Gb DDR2: Rev. N; Core DDR2: Rev. C 4/08 EN
BA0-BA2
A0-A14,
RAS#
CAS#
WE#
ODT
CKE
CK#
CS#
CK
18
ADDRESS
REGISTER
REGISTERS
MODE
CONTROL
256 Meg x 4 Functional Block Diagram
LOGIC
18
COUNTER
REFRESH
15
11
3
The DDR2 SDRAM is a high-speed CMOS, dynamic random access memory. It is inter-
nally configured as a multi-bank DRAM.
ADDRESS
ROW-
2
MUX
CONTROL
15
COUNTER/
COLUMN-
BANK
LOGIC
ADDRESS
LATCH
DECODER
ADDRESS
BANK 0
LATCH
ROW-
BANK 1
&
BANK 2
BANK 3
BANK 4
9
2
BANK 5
32,768
BANK 6
BANK 7
DM MASK LOGIC
(32,768 x 512 x 16)
SENSE AMPLIFIERS
I/O GATING
DECODER
COLUMN
MEMORY
8,192
(x16)
BANK 0
512
ARRAY
BANK 1
BANK 2
BANK 3
BANK 4
BANK 5
BANK 6
BANK 7
7
COL0,COL1
CK,CK#
16
16
16
LATCH
Micron Technology, Inc., reserves the right to change products or specifications without notice.
READ
DRIVERS
CK OUT
WRITE
CK IN
FIFO
&
4
4
4
4
MASK
DATA
COL0,COL1
4
16
MUX
GENERATOR
1
1
1
1
4
4
4
4
1Gb: x4, x8, x16 DDR2 SDRAM
REGISTERS
DQS
INPUT
DATA
4
Functional Block Diagrams
DQS, DQS#
1
1
1
1
4
4
4
4
2
CK,CK#
4
DRVRS
1
2
DLL
RCVRS
©2004 Micron Technology, Inc. All rights reserved.
sw1 sw2
sw1 sw2
sw1 sw2
sw1 sw2
R1
R1
R1
R1
R1
R1
ODT CONTROL
R2
R2
R2
R2
R2
R2
VssQ
sw3
sw3
sw3
sw3
R3
R3
R3
R3
R3
R3
V
DD
Q
DQS, DQS#
DQ0–DQ3
DM