US 12,487,938 B2
Storage device, controller, and operating method of controller, capable of improving efficiency of program mode
Joo Young Lee, Icheon (KR); and Hoe Seung Jung, Icheon (KR)
Assigned to SK hynix Inc., Icheon (KR)
Filed by SK hynix Inc., Icheon (KR)
Filed on Sep. 12, 2023, as Appl. No. 18/465,882.
Claims priority of application No. 10-2023-0047387 (KR), filed on Apr. 11, 2023.
Prior Publication US 2024/0345960 A1, Oct. 17, 2024
Int. Cl. G06F 12/0877 (2016.01)
CPC G06F 12/0877 (2013.01) 19 Claims
OG exemplary drawing
 
1. A storage device comprising:
a memory including a plurality of memory cells; and
a controller configured to:
write first data to the memory according to a cache program mode;
comparing a size of second data to be written in the memory and a reference value, the second data following the first data;
determine whether to switch the cache program mode to a normal program mode based on a comparison result; and
write the second data to the memory according to the determined program mode,
wherein a program period of the cache program mode is greater than a program period of the normal program mode, and
wherein when the first data is written to the memory according to the cache program mode, the second data is input to the memory during a first program period of writing the first data, and when the first data is written to the memory according to the normal program mode, the second data is input to the memory after the first program period is over.