88% CONFIDENCEOverall confidence: 88%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The JEDEC release is datelined Arlington, Va., 8 March 2017; Wikipedia's[2] LPDDR table gives the same date.On 8 March 2017 JEDEC published JESD209-4B and Addendum No. 1 (JESD209-4-1), which defines LPDDR4X. The optional extension lowers the I/O supply (VDDQ) from 1.1 V to 0.6 V, a 40% cut, and adds timing for a 4266 Mbps grade.
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