Datasheet
Rev. 1.0 / Jul. 2012 3
Description
SK hynix Unbuffered DDR3 SDRAM DIMMs (Unbuffered Double Data Rate Synchronous DRAM Dual In-
Line Memory Modules) are low power, high-speed operation memory modules that use DDR3 SDRAM
devices. These Unbuffered SDRAM DIMMs are intended for use as main memory when installed in systems
such as PCs and workstations.
Feature
• VDD=1.5V +/- 0.075V
• VDDQ=1.5V +/- 0.075V
• VDDSPD=3.0V to 3.6V
• Functionality and operations comply with the DDR3 SDRAM datasheet
• 8 internal banks
• Data transfer rates: PC3-14900, PC3-12800, PC3-10600,PC3-8600
• Bi-directional Differential Data Strobe
• 8 bit pre-fetch
• Burst Length (BL) switch on-the-fly: BL 8 or BC (Burst Chop) 4
• Supports ECC error correction and detection
• On Die Termination (ODT) supported
• Temperature sensor with integrated SPD (Serial Presence Detect) EEPROM
• This product is in Compliance with the RoHS directive
Ordering Information
Part Number Density Organization Component Composition
# of
ranks
FDHS
HMT451U6MFR8C-G7/H9/PB 4GB 512Mx64 512Mx8(H5TQ4G83MFR)*8 1 X
HMT41GU6MFR8C-G7/H9/PB/RD 8GB 1Gx64 512Mx8(H5TQ4G83MFR)*16 2 X
HMT41GU7MFR8C-G7/H9/PB 8GB 1Gx72 512Mx8(H5TQ4G83MFR)*18 2 X










