Micron Technology, Inc. reserves the right to change products or specifications without notice.
2006 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.
2Gb: x4, x8, x16 DDR2 SDRAM
Features
Table 1: Key Timing Parameters
Data Rate (MHz)
Speed Grade
-187E
-25E
-25
-3
CL = 3
400
400
400
400
CL = 4
533
533
533
533
CL = 5
800
800
667
667
CL = 6
800
800
800
n/a
CL = 7
1066
n/a
n/a
n/a
t
RC
(ns)
54
55
55
55
Table 2: Addressing
Parameter
Configuration
Refresh count
Row address
Bank address
Column address
512 Meg x 4
64 Meg x 4 x 8 banks
8K
A[14:0] (32K)
BA[2:0] (8)
A[11, 9:0] (2K)
256 Meg x 8
32 Meg x 8 x 8 banks
8K
A[14:0] (32K)
BA[2:0] (8)
A[9:0] (1K)
128 Meg x 16
16 Meg x 16 x 8 banks
8K
A[13:0] (16K)
BA[2:0] (8)
A[9:0] (1K)
Part Numbers
Figure 1: 2Gb DDR2 Part Numbers
Example Part Number:
MT47H256M8EB-25 :C
-
MT47H
Configuration
Package
Speed
:
Revision
Configuration
512 Meg x 4
256 Meg x 8
128 Meg x 16
Package
84-Ball 11.5mm x 14mm FBGA
60-Ball 11.5mm x 14mm FBGA
84-Ball 9.0mm x 12.5mm FBGA
60-Ball 9.0mm x 11.5mm FBGA
84-Ball 9.0mm x 12.5mm FBGA (lead solder)
HG
HG
RT
EB
PK
-187E
-25E
-25
-3
512M4
256M8
128M16
Power
Standard
:A/:C
Revision
IT
Industrial Temperature
Blank
Speed Grade
tCK = 1.875ns, CL = 7
tCK = 2.5ns, CL = 5
tCK = 2.5ns, CL = 6
tCK = 3ns, CL = 5
Note:
1. Not all speeds and configurations are available.
FBGA Part Number System
Due to space limitations, FBGA-packaged components have an abbreviated part marking that is different from the
part number. For a quick conversion of an FBGA code, see the FBGA Part Marking Decoder on Micron’s Web site:
http://www.micron.com.
CCMTD-1725822587-6523
2Gb_DDR2.pdf – Rev. J 09/18 EN
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2006 Micron Technology, Inc. All rights reserved.
2Gb: x4, x8, x16 DDR2 SDRAM
Features
Contents
Important Notes and Warnings ......................................................................................................................... 8
State Diagram .................................................................................................................................................. 9
Industrial Temperature ............................................................................................................................... 10
General Notes ............................................................................................................................................ 11
Truth Tables ............................................................................................................................................... 72
Burst Type .................................................................................................................................................. 80
CAS Latency (CL) ........................................................................................................................................ 82
READ with Precharge .................................................................................................................................. 98
READ with Auto Precharge ......................................................................................................................... 100
Table 26: Address and Control Balls ................................................................................................................ 57
Table 27: Clock, Data, Strobe, and Mask Balls ................................................................................................. 57
Table 28: AC Input Test Conditions ................................................................................................................ 57
Table 29: DDR2-400/533 Setup and Hold Time Derating Values (
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