Hello,
The AM62x processor application note "AM62x DDR Board Design and Layout Guidelines" recommends 40 Ω (ohm) impedance for the single ended PCB traces.
Micron DDR4 tech note "TN-40-40: DDR4 Point-to-Point Design Guide" recommends 50 Ω (ohm) impedance for the single ended PCB traces.
40 Ω (ohm) is kind of unusual and I wonder why TI has selected this value?
What value should I use for design with AM6254 processor and Micron 32 Gb (or 16 Gb) DDR4 SDRAM?
Thanks,
Kris
