Voltage monitor and off-chip driver of memory device

An off-chip driver of a memory device, comprising:

• a connecting pad, configured to output a sensing signal corresponding to an internal voltage in the memory device;
• a pull-up circuit, comprising:
• a control switch, a first terminal of the control switch is coupled to a high reference voltage;
• and
• a pull-up switch, coupled between a second terminal of the control switch and the connecting pad;
• and
• a pull-down circuit, coupled between the connecting pad and a low reference voltage;
• and
• a control circuit, coupled to the pull-up circuit;
• wherein when the memory device is in a test mode, the control circuit turns off the control switch, and provides a bias voltage to the second terminal of the control switch to adjust a first current flowing through the pull-up circuit.

An off-chip driver of a memory device, comprising:

• a connecting pad, configured to output a sensing signal corresponding to an internal voltage in the memory device;
• a pull-up circuit, coupled between a high reference voltage and the connecting pad;
• and
• a pull-down circuit, comprising:
• a control switch, a first terminal of the control switch is coupled to a low reference voltage;
• and
• a pull-down switch, coupled between a second terminal of the control switch and the connecting pad;
• and
• a control circuit, coupled to the pull-down circuit;
• wherein when the memory device is in a test mode, the control circuit turns off the control switch, and provides a bias voltage to the second terminal of the control switch to adjust a current flowing through the pull-down switch.