Memory cell dynamic grouping using write detection

摘要

A memory system and dynamic memory cell programming process thereof is disclosed. The dynamic programming processes comprises the processes of: (a) determining a concurrent-programmable bit number in accordance with a current budget limit; (b) identifying, with a memory controller, a memory cell in a plurality of memory cells in need of programming; (c) performing programming operation on at least one of the memory cells in need of programming; (d) detecting, with a write-detection unit, an programming operation status of the memory cell being programmed and correspondingly generating a program completion indication; and (e) triggering programming operation to a subsequent one of the memory cells according to the program completion indication from the write-detection unit.

主权项

1. A memory system, comprising:
a plurality of memory cells; a power source that is in connection with the memory cells and configured to provide a program current budget that corresponds to a capability of the power source; a write-detection unit in connection with the memory cells, configured to detect a programming operation status of the memory cells being programmed, and correspondingly generating a program completion indication; and a memory controller that is
in connection with the power source and the write-detection unit,configured to trigger programming operation to a subsequent one of the memory cells according to the program completion indication, andconfigured to determine a concurrent-programmable bit number corresponding to the program current budget, and a subtractor coupled to a corresponding one of the memory cells, configured to process the concurrent-programmable bit number and produce a remaining available bit number corresponding to the program current budget during programming operation of the corresponding memory cell.