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SSTUB32868 Key Features

  • 28-bit data register supporting DDR2
  • Supports 2 rank by 4 DIMM density by integrating equivalent functionality of two JEDEC-standard DDR2 registers (that is,
  • Parity checking function across 22 input data bits
  • Parity out signal
  • Controlled multi-impedance output impedance drivers enable optimal signal integrity and speed
  • Meets or exceeds SSTUB32868 JEDEC standard speed performance
  • Supports up to 450 MHz clock frequency of operation
  • Programmable for normal or high output drive
  • Optimized pinout for high-density DDR2 module design
  • Chip-selects minimize power consumption by gating data outputs from changing state

SSTUB32868 Description

The SSTUB32868 is a 1.8 V 28-bit 1 : 2 register specifically designed for use on two rank by four (2R × 4) and similar high-density Double Data Rate 2 (DDR2) memory modules. It is similar in function to the JEDEC-standard 14-bit DDR2 register, but integrates the functionality of the normally required two registers in a single package, thereby freeing up board real-estate and facilitating routing to acmodate...