The W9751G8KB is a 512M bits DDR2 SDRAM, and speed involving -18/-25/25I and -3

• 产品特点

  Power Supply: VDD, VDDQ = 1.8 V ± 0.1 V
  Double Data Rate architecture: two data transfers per clock cycle
  CAS Latency: 3, 4, 5, 6 and 7
  Burst Length: 4 and 8
  Bi-directional, differential data strobes (DQS and /DQS ) are transmitted / received with data
  Edge-aligned with Read data and center-aligned with Write data
  DLL aligns DQ and DQS transitions with clock
  Differential clock inputs (CLK and /CLK)
  Data masks (DM) for write data
  Commands entered on each positive CLK edge, data and data mask are referenced to both edges of /DQS
  Posted /CAS programmable additive latency supported to make command and data bus efficiency
  Read Latency = Additive Latency plus CAS Latency (RL = AL + CL)
  Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for better signal quality
  Auto-precharge operation for read and write bursts
  Auto Refresh and Self Refresh modes
  Precharged Power Down and Active Power Down
  Write Data Mask
  Write Latency = Read Latency - 1 (WL = RL - 1)
  Interface: SSTL_18