Bull power supply vdd12v typical bull vddq 12v typical bull vpp 25v typical bull vddspd22v to 36v bull nominal and dynamic on die termination odt for data strobe and mask signals bull low power auto self refresh lpasr bull data bus inversion dbi for data bus bull on die vrefdq generation and calibration bull single rank bull on board i2 serial presence detect spd eeprom bull 16 internal banks 4 groups of 4 banks each bull fixed burst chop bc of 4 and bu