(Double Data Rate 4 Synchronous Dynamic Random Access Memory), published by JEDEC Solid State Technology Association
: To ensure that memory modules or systems meet the strict JEDEC compliance requirements. command protocols detailed within the standard? jesd79-4d pdf
The document is the official technical standard for DDR4 SDRAM (Double Data Rate 4 Synchronous Dynamic Random Access
The JESD79-4 series, including the "D" revision, typically covers several critical areas: Higher Speeds & Bandwidth including the "D" revision