DDR4 tCL, tRFC1, tREFi Calculator

RAM Frequency (MT/s):

CAS Latency to Absolute Latency(ns)

CAS Latency:

Absolute Latency (ns):

tRFC:

Convert tRFC(ns) to tRFC1 value:

tRFC(ns):

tRFC1:

Convert tRFC1 value to tRFC(ns):

tRFC1:

tRFC(ns):

This calculator assumes 8Gb chips for tRFC of 350ns. For 16Gb Use tRFC of 550ns. (JESD79-4B)

tREFi cycles at 7.8µS tREFi:

tREFi: