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SDRAM

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Sophisticated Features that make Standard Dynamic RAM Considerably Faster

SDRAM (Synchronous DRAM) is the common term to classify PC66 (1997), PC100 (1998) and PC133 SDRAM (1999/2000). SDRAMs are based on standard dynamic RAM chips, but have sophisticated features that make them considerably faster.

SDRAM (Synchronous DRAM) is the common term to classify PC66 (1997), PC100 (1998) and PC133 SDRAM (1999/2000). SDRAMs are based on standard dynamic RAM chips, but have sophisticated features that make them considerably faster.

First, SDRAM chips are fast enough to be synchronized with the CPU's clock, which eliminates wait states. Second, the SDRAM chip is divided into two cell blocks, and data is interleaved between the two so that while a bit in one block is being accessed, the bit in the other is being prepared for access. This allows SDRAM to burst the second and subsequent, data bits at a rate of 10ns, compared to 60ns for the first character. SDRAM chips use a power supply voltage of 3.3 volts.

  • Scalability of Speeds to Reach 133 Mhz
  • Available in both Unbuffered and ECC Registered Versions
  • Available in 168 DIMM and 144 pin So-DIMM Form Factors
  • 3.3 Volt Operating Voltage
  • High density: Up to 2GB
  • Ideal for Legacy Designs and Embedded Systems Designs that use simpler DRAM Controllers

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