Variable reference based sensing scheme

A system comprising:

• a memory controller;
• and
• a memory die in a same package as the memory controller, the memory die comprising:
• a crosspoint memory array;
• and
• input/output (I/O) circuitry to receive a memory access command from the memory controller to access a memory cell of the crosspoint memory array;
• control logic to:
• determine a voltage to apply across the memory cell in response to receipt of the memory access command, and
• select one of multiple reference currents based on the voltage;
• and
• sense circuitry to:
• detect a current through the memory cell in response to the applied voltage, and
• determine a state of the memory cell based on the detected current relative to the selected reference current.

A method comprising:

• receiving a memory access command to access a crosspoint memory cell;
• applying a voltage across the crosspoint memory cell in response to receipt of the memory access command;
• selecting one of multiple reference currents based on the voltage;
• detecting a current through the memory cell in response to the applied voltage;
• and
• determining a state of the memory cell based on the detected current relative to the selected reference current.