Kindly someone educate me how to interpret any data data sheet for memory. I am refering to any data sheet for a ddr4 chip for example - https://www.3d-plus.com/data/doc/products/references/3dds_0758_2_ddr4_32gbx72_.pdf
Does nCK mean time for one clock cycle? for example, DDR4 that runs at 1600Mhz, nCK = 625ps.
what is the meaning when value of a parameter is given as Max(4nCK, 5ns)? Does it mean - select 4nCK or 5ns, whichever is maximum? In my example, where nCK = 625ps, 4nCK = 2.5ns. Since 5ns is bigger than 2.5ns, I will select 5ns. 5ns is 5.0/0.625 = 8nCK. so, is the value for this parameter 8nCK or 5ns?
For a given parameter, if the "unit" column has "nCK", then does it mean that value of this parameter be mentioned in cycles?
Am I the only one who does not know how to read datasheet for ddr as I could not find any useful information when I searched for "how to read ddr4 data sheet"?