mt18htf25672az Micron Semiconductor Products, mt18htf25672az Datasheet - Page 10

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

DRAM Operating Conditions
Table 10:
Design Considerations
Simulations
Power
PDF: 09005aef83c6d17f/Source: 09005aef83c6d1c0
HTF18C256_512x72AZ.fm - Rev. A 9/09 EN
Module and Component Speed Grades
DDR2 components may exceed the listed module speed grades
Module Speed Grade
-1GA
Recommended AC operating conditions are given in the DDR2 component data sheets.
Component specifications are available on Micron’s Web site at www.micron.com. Mod-
ule speed grades correlate with component speed grades, as shown in Table 10.
-80E
-800
-667
-53E
-40E
Micron memory modules are designed to optimize signal integrity through carefully
designed terminations, controlled board impedances, routing topologies, trace length
matching, and decoupling. However, good signal integrity starts at the system level.
Micron encourages designers to simulate the signal characteristics of the system’s mem-
ory bus to ensure adequate signal integrity of the entire memory system.
Operating voltages are specified at the DRAM, not at the edge connector of the module.
Designers must account for any system voltage drops at anticipated power levels to
ensure the required supply voltage is maintained.
2GB, 4GB (x72, DR, ECC) 240-Pin DDR2 SDRAM UDIMM
10
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Component Speed Grade
-187E
Electrical Specifications
-25E
-37E
-25
-5E
-3
©2009 Micron Technology, Inc. All rights reserved.