SPRACU1A October 2020 – June 2021 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6441 , AM6442
VPP is a new supply input on DDR4 SDRAMs. This supply must provide an average of less than 5 mA in active and standby modes and 10 to 20 mA during refresh. There is not a constant current draw during refresh. The VPP power supply and decoupling capacitors must be able to supply short bursts of current up to 60 mA during this time.