!link!: Jesd79-4d Pdf

: JEDEC standards, including JESD79-4D, detail specific operating and storage temperature ranges, as well as voltage specifications to ensure reliable operation.

Once you have the PDF, here are tips for finding specific information quickly: jesd79-4d pdf

DDR4 mandates a pin with an external 240Ω ±1% resistor. Two commands: : JEDEC standards