This document describes ValueRAM's KVR26N19S6/4 is a 512M x 64-bit (4GB) DDR4-2666 CL19 SDRAM (Synchronous DRAM), 1Rx16, memory module, based on four 512M x 16-bit FBGA components. The SPD is programmed to JEDEC standard  latency DDR4-2666 timing of 19-19-19 at 1.2V. Each 288-pin DIMM uses gold contact fingers. 
  
   
  
   
  
  • Power Supply: VDD = 1.2V Typical
  
  • VDDQ = 1.2V Typical
  
  • VPP = 2.5V Typical
  
  • VDDSPD = 2.2V to 3.6V
  
  • Nominal and dynamic on-die termination (ODT) for data, strobe, and mask signals
  
  • Low-power auto self refresh (LPASR)
  
  • Data bus inversion (DBI) for data bus
  
  • On-die VREFDQ generation and calibration
  
  • Single-rank
  
  • On-board I2 serial presence-detect (SPD) EEPROM
  
  • 8 internal banks; 2 groups of 4 banks each
  
  • Fixed burst chop (BC) of 4 and burst length (BL) of 8 via the mode register set (MRS)
  
  • Selectable BC4 or BL8 on-the-fly (OTF)
  
  • Fly-by topology
  
  • Terminated control command and address bus
  
  • PCB: Height 1.23” (31.25mm)
  
  • RoHS Compliant and Halogen-Free