MT47H256M4BT-5E:A TR Micron Technology Inc, MT47H256M4BT-5E:A TR Datasheet - Page 12

• Manufacturer Part Number: MT47H256M4BT-5E:A TR
• Description: IC DDR2 SDRAM 1GBIT 5NS 92FBGA
• Manufacturer: Micron Technology Inc

Specifications of MT47H256M4BT-5E:A TR

• Format - Memory: RAM
• Memory Type: DDR2 SDRAM
• Memory Size: 1G (256M x 4)
• Speed: 5ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 92-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1206-1

Functional Block Diagrams
Figure 3: 256 Meg x 4 Functional Block Diagram
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
BA0–BA2
A0–A13,
RAS#
CAS#
ODT
WE#
CKE
CK#
CS#
CK
17
Address
register
registers
Mode
Control
logic
17
counter
Refresh
14
11
The DDR2 SDRAM is a high-speed CMOS, dynamic random access memory. It is inter-
nally configured as a multibank DRAM.
3
14
address
Row-
MUX
2
14
control
Bank
logic
Column-
counter/
address
latch
decoder
address
Bank 0
row-
latch
and
Bank 1
Bank 2
Bank 3
Bank 4
9
2
16,384
Bank 5
Bank 6
Bank 7
DM mask logic
(16,384 x 512 x 16)
I/O gating
Sense amplifiers
Memory array
Column
decoder
8,192
(x16)
512
Bank 0
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
Bank 6
12
Bank 7
COL0, COL1
CK, CK#
16
16
16
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Read
latch
CK out
WRITE
drivers
CK in
FIFO
and
4
4
4
4
Data
COL0, COL1
Mask
4
16
1Gb: x4, x8, x16 DDR2 SDRAM
MUX
generator
1
1
1
4
4
4
4
1
DQS
registers
Input
Functional Block Diagrams
DATA
4
DQS, DQS#
1
1
1
4
4
4
4
1
2
CK, CK#
4
1
DRVRS
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
V
ss
Q
sw3
sw3
sw3
sw3
R3
R3
R3
R3
R3
R3
V
dd
Q
DQ0–DQ3
DQS, DQS#
DM