FAQ Category

DDR2 SDRAM FAQs

Recent Questions

• Do I need a separate voltage regulator to supply Vref power?
  
• Should the DLL be disabled?
  
• Can you explain how on-die termination (ODT) affects power consumption?
  
• Is VREF allowed to float during self refresh mode?
  
• What is the DDR2 RDQS pin for?
  
• Should DDR2 SDRAM always have ODT turned on?
  
• What is the maximum clock rate for DDR2 when it’s used with a single-ended DQS?
  
• Is DDR2-1066 a JEDEC standard?
  
• Can DDR2-1066 be used with two slots?
  
• Are there any supply voltage savings with 1.5V DDR2 SDRAM versus 1.55V DDR2 SDRAM?
  

More

• Do I need a separate voltage regulator to supply Vref power?
  
• Can you explain how on-die termination (ODT) affects power consumption?
  
• Will the device run at a slow clock (well under the slowest data sheet speed)?
  
• Should the DLL be disabled?
  
• What is meant by "In Development," "Advanced," "Sampling," "Production," "Not Recommended," "End of Life," or "Obsolete," part status?
  
• Should DDR2 SDRAM always have ODT turned on?
  
• How much power does the Vref power pin draw?
  
• What is the maximum clock rate for DDR2 when it’s used with a single-ended DQS?
  
• What is the DDR2 RDQS pin for?
  
• Is DDR2-1066 a JEDEC standard?
  

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