Microcontroller including a digital potentiometer

An apparatus, comprising:

• an electronic device including electronic device circuitry;
• and
• a microcontroller connected to the electronic device, the microcontroller comprising:
• a microcontroller packaging;
• a digital potentiometer arranged in the microcontroller packaging and including:
• a resistor ladder including a plurality of resistors arranged in series, and a plurality of selectively controllable potentiometer switches;
• a first resistor terminal connected to the resistor ladder;
• a wiper terminal connected to the resistor ladder;
• a first pin connected to the first resistor terminal;
• and
• a second pin connected to the wiper terminal;
• wherein the first pin and the second pin are exposed through the microcontroller packaging and connectable to the electronic device;
• a microcontroller memory arranged in the microcontroller packaging, the microcontroller memory storing a wiper select signal;
• and
• a processor arranged in the microcontroller packaging, the processor to transmit the wiper select signal to the digital potentiometer to selectively control the plurality of potentiometer switches to control the resistance between the first resistor terminal and the wiper terminal, and thereby selectively control a resistance through the electronic device circuitry of the electronic device.

An apparatus, comprising:

• a microcontroller, comprising:
• a microcontroller packaging;
• a digital potentiometer provided in the microcontroller packaging and including:
• a resistor ladder including a plurality of resistors arranged in series and a plurality of potentiometer switches;
• a first resistor terminal connected to the resistor ladder;
• a wiper terminal connected to the resistor ladder;
• wherein the plurality of potentiometer switches are selectively controllable to selectively connect at least a subset of the plurality of resistors between the first resistor terminal and the wiper terminal to define a resistance between the first resistor terminal and the wiper terminal;
• and
• a charge pump to apply a charge pump voltage to respective potentiometer switches of the plurality of potentiometer switches.