mt18htf25672az Micron Semiconductor Products, mt18htf25672az Datasheet - Page 2

• Manufacturer Part Number: mt18htf25672az
• Description: 2gb, 4gb X72, Dr, Ecc 240-pin Ddr2 Sdram Udimm
• Manufacturer: Micron Semiconductor Products

Table 2:
Table 3:
Table 4:
PDF: 09005aef83c6d17f/Source: 09005aef83c6d1c0
HTF18C256_512x72AZ.fm - Rev. A 9/09 EN
Refresh count
Row address
Device bank address
Device page size per bank
Device configuration
Column address
Module rank address
MT18HTF25672AZ-1GA__
MT18HTF25672AZ-80E__
MT18HTF25672AZ-800__
MT18HTF25672AZ-667__
MT18HTF51272AZ-80E__
MT18HTF51272AZ-800__
MT18HTF51272AZ-667__
Part Number
Part Number
Addressing
Part Numbers and Timing Parameters – 2GB Modules
Base device: MT47H128M8
Part Numbers and Timing Parameters – 4GB Modules
Base device: MT47H256M8
1
1
Notes: 1. All part numbers end with a two-place code (not shown) that designating component and
2. For component data sheets, refer to Micron’s Web
PCB revisions. Consult factory for current revision codes. Example: MT18HTF25672AZ-
667H1.
Module
Density
Module
Density
2GB
2GB
2GB
2GB
4GB
4GB
4GB
2
2
, 1Gb DDR2 SDRAM
, 2Gb DDR2 SDRAM
Configuration
Configuration
2GB, 4GB (x72, DR, ECC) 240-Pin DDR2 SDRAM UDIMM
256 Meg x 72
256 Meg x 72
256 Meg x 72
256 Meg x 72
512 Meg x 72
512 Meg x 72
512 Meg x 72
2
1Gb (128 Meg x 8)
Bandwidth
Bandwidth
16K A[13:0]
Module
Module
8.5 GB/s
6.4 GB/s
6.4 GB/s
5.3 GB/s
6.4 GB/s
6.4 GB/s
5.3 GB/s
1K A[9:0]
8 BA[2:0]
2 S#[1:0]
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2GB
1KB
8K
1.875ns/1066 MT/s
Memory Clock/
Memory Clock/
site.
2.5ns/800 MT/s
2.5ns/800 MT/s
3.0ns/667 MT/s
2.5ns/800 MT/s
2.5ns/800 MT/s
3.0ns/667 MT/s
Data Rate
Data Rate
©2009 Micron Technology, Inc. All rights reserved.
2Gb (256 Meg x 8)
32K A[14:0]
8 BA[2:0]
1K A[9:0]
2 S#[1:0])
4GB
1KB
8K
(CL-
(CL-
Latency
Latency
t
t
7-7-7
5-5-5
6-6-6
5-5-5
5-5-5
6-6-6
5-5-5
RCD-
RCD-
Features
t
t
RP)
RP)