Reading voltage management method and storage device

Abstract

The disclosure provides a reading voltage management method and a storage device. The method includes: selecting a first physical unit from multiple physical units; dividing a first sub-physical unit in the first physical unit into a multiple information windows dedicated to storing temperature data related to a second physical unit, in which a total quantity of the information windows is the same as a total quantity of multiple sub-physical units in the second physical unit; receiving a read command from a host system; reading first temperature data related to the second sub-physical unit among the second physical unit from the first information window according to the read command; determining a first reading voltage level according to the first temperature data; and reading the target data from the second sub-physical unit based on the first reading voltage level to respond to the read command.