Non-volatile memory, system including the memory and method for controlling the memory

A method for controlling a non-volatile memory that includes a plurality of bit lines, a plurality of source lines, a discharge line selectively coupled to the source lines, and a plurality of memory cells of a non-volatile type, each memory cell being coupled between a respective bit line and a respective source line, the method comprising:

• biasing a selected source line to a first operating voltage in order to carry out a reading or programming operation in a selected one of the memory cells that is coupled to the selected source line;
• supplying a current to a selected bit line that is coupled to the selected memory cell;
• and
• coupling the selected source line to the discharge line while isolating unselected source lines from the discharge line, so as to form a conductive path between the selected source line and a reference-voltage terminal during the reading or programming operation.

A portable electronic device comprising:

• a controller;
• a memory coupled to the controller;
• a user interface operatively coupled to the controller;
• a wireless interface operatively coupled to the controller;
• a battery operatively coupled to the controller;
• and
• a non-volatile memory operatively coupled to the controller, the non-volatile memory comprising:
• a plurality of bit lines;
• a plurality of source lines;
• a plurality of memory cells of a non-volatile type, each memory cell being coupled between a respective bit line and a respective source line;
• one or more discharge lines coupled to a reference-voltage terminal;
• and
• a plurality of controlled switches coupled between a respective source line and a respective discharge line, selectively controllable for connecting the respective source line to the respective discharge line so as to form a conductive path between the respective source line and the reference-voltage terminal.