ACPI Unbuffered DDR2 SDRAM DIMMs (Unbuffered Double Data Rate Synchronous DRAM Dual In-Line Memory Modules) are high-speed operation memory modules that use DDR2 SDRAM devices.
These Unbuffered SDRAM DIMMs are intended for use as main memory when installed in systems such as PCs and workstations.


  • Compliance with JEDEC Standard
  • RoHS Compliant (Lead Free) 
  • 100% Module on System Board Testing
  • Basic Read / Write Function Test
  • Function Test with Mostly Strict Test Condition
  • High performance and reliability


  • Power Supply:

VDD=1.8V (+/- 0.1V)

  • All inputs and outputs are compatible with SSTL_1.8 interface
  • Posted CAS
  • Programmable CAS Latency 3 ,4 ,5, and 6
  • Data transfer rates:


  • Fully differential clock operations (CK & /CK)
  • Auto refresh and self refresh supported
  • 8192 refresh cycles / 64ms
  • OCD (Off-Chip Driver Impedance Adjustment)
  • On-Die Termination (ODT)
  • Serial presence detect with EEPROM
  • PCB Height : 30.00 mm
Interface SSTL18
Capacity 1/2/4GB
Temperature Normal-Temp
-Operating Temp.:0˚C~+70˚C
-Operating Temp.: -40˚C~+85˚C
Warranty Limited Lifetime Warranty
Data rate 400/533/667/800Mb/s
Voltage 1.8V +/- 0.1V
Package 60-ball FBGA for x8
84-ball FBGA for x16 
Burst length 4, 8 
Rest No
Module Type 240pin DDR2 Unbuffered DIMM Non-ECC
  • Applications

  • Embedded Application
  • Industrial motherboard
  • Digital Signage
  • Cloud Server
  • Telecom system
  • Hard held device
  • Transportation
  • Medical & healthcare
  • eHOME
  • Kiosk / POI
  • Surveillance
  • POS
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