US 11,989,127 B2
Efficient L2P DRAM for high-capacity drives
Shay Benisty, Beer Sheva (IL)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Sep. 15, 2022, as Appl. No. 17/945,586.
Prior Publication US 2024/0095165 A1, Mar. 21, 2024
Int. Cl. G06F 12/00 (2006.01); G06F 12/0802 (2016.01); G06F 12/1027 (2016.01)
CPC G06F 12/0802 (2013.01) [G06F 12/1027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data storage device, comprising:
a memory device; and
a controller coupled to the memory device, wherein the controller is configured to:
manage a logical to physical (L2P) table comprising 32 L2P entries with each L2P entry comprising 32 bits; and
store L2P entries in the L2P table, wherein at least one memory device physical address comprises more than 32 bits, wherein 32 bits of the at least one memory device physical address is stored in a single entry of the 32 L2P entries, and wherein remaining bits of the at least one memory device physical address are stored in a separate location from the L2P table.