MT18HTF25672AZ-667H1 Micron Technology Inc, MT18HTF25672AZ-667H1 Datasheet - Page 12

• Manufacturer Part Number: MT18HTF25672AZ-667H1
• Description: MODULE DDR2 SDRAM 2GB 240UDIMM
• Manufacturer: Micron Technology Inc
• Series: -r

Specifications of MT18HTF25672AZ-667H1

• Main Category: DRAM Module
• Sub-category: DDR2 SDRAM
• Module Type: 240UDIMM
• Device Core Size: 72b
• Organization: 256Mx72
• Total Density: 2GByte
• Chip Density: 1Gb
• Access Time (max): 900ns
• Maximum Clock Rate: 667MHz
• Operating Supply Voltage (typ): 1.8V
• Operating Current: 1.136A
• Number Of Elements: 18
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 240
• Mounting: Socket
• Memory Type: DDR2 SDRAM
• Memory Size: 2GB
• Speed: 667MT/s
• Features: -
• Package / Case: 240-UDIMM
• Lead Free Status / Rohs Status: Compliant

DRAM Operating Conditions
Table 10: Module and Component Speed Grades
DDR2 components may exceed the listed module speed grades; module may not be available in all listed speed grades
Design Considerations
PDF: 09005aef83c6d17f
htf18c256_512x72az.fm - Rev. B 2/10 EN
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. Module speed grades cor-
relate with component speed grades.
-80E
-800
-667
-53E
-40E
Simulations
Micron memory modules are designed to optimize signal integrity through carefully de-
signed terminations, controlled board impedances, routing topologies, trace length
matching, and decoupling. However, good signal integrity starts at the system level. Mi-
cron encourages designers to simulate the signal characteristics of the system's memo-
ry bus to ensure adequate signal integrity of the entire memory system.
Power
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 en-
sure the required supply voltage is maintained.
2GB, 4GB (x72, ECC, DR) 240-Pin DDR2 SDRAM UDIMM
12
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Component Speed Grade
DRAM Operating Conditions
-187E
-25E
-37E
-25
-5E
-3
© 2009 Micron Technology, Inc. All rights reserved.