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DDR2

 

  • JEDEC standard
  • Serial Presence Detect support
  • MRS cycle with address key programs
  • 2 variations of refresh
 

Overview

DDR2 is the next-generation evolution of DDR memory technology. DDR2 memory features faster speeds, higher data bandwidths, lower power consumption and enhanced thermal performance. DDR2 memory chips will be available in Fine-pitch BGA (FBGA) chip packages for improved electrical and thermal characteristics. In addition, DDR2 memory chips will incorporate On-Die Termination (ODT) to minimize memory signal reflections at high speeds, thereby improving timing margins. DDR2 memory chips will come in capacities up to 4 Gigabits, allowing for higher-capacity modules.

features


  • 1.8 Volts operation, reducing power consumption by about 50%.
  • Memory signal termination inside the memory chip ("On-Die Termination") to prevent reflected signal transmission errors.
  • Operational enhancements to increase memory performance, efficiency and timing margins
  • CAS Latencies: 3, 4.,5

Specifications

Model
Capacity
Description
Data Rate
Voltage
CL
Pin
PC2-3200
256MB-2GB
ECC
400MHz
1.8V
CL3
240pin
ECC Registered