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