An electronic device (100, 200) comprising a target chip and an integrated circuit, wherein the integrated circuit comprises a power supply pin, a configuration pin, a switchable pull-up resistor, and a control unit, wherein the integrated circuit is capable of providing a control signal for the target chip by using the configuration pin; a first end of the switchable pull-up resistor is connected to the power supply pin, a second end of the switchable pull-up resistor is connected to the configuration pin, and a control end of the switchable pull-up resistor is connected to the control unit; the power supply pin is configured to receive a power supply voltage of the integrated circuit; and the control unit is configured to control the switchable pull-up resistor to be in an off state before the target chip is powered on, wherein the control unit is specifically configured to: control the switchable pull-up resistor to be in the off state before a target time point, wherein the target time point is not earlier than a time point at which a power-on voltage of the target chip reaches a target voltage, characterised in that the integrated circuit further comprises a power supply control pin; and the control unit is further configured to: output a power-on signal by using the power supply control pin, wherein the power-on signal is used to connect a path for powering on the target chip; and calculate the target time point based on a time point of outputting the power-on signal and a delay for the power-on voltage of the target chip to reach the target voltage. a first end of the switchable pull-up resistor is connected to the power supply pin, a second end of the switchable pull-up resistor is connected to the configuration pin, and a control end of the switchable pull-up resistor is connected to the control unit; the power supply pin is configured to receive a power supply voltage of the integrated circuit; and the control unit is configured to control the switchable pull-up resistor to be in an off state before the target chip is powered on, wherein the control unit is specifically configured to: control the switchable pull-up resistor to be in the off state before a target time point, wherein the target time point is not earlier than a time point at which a power-on voltage of the target chip reaches a target voltage, characterised in that the integrated circuit further comprises a power supply control pin; and control the switchable pull-up resistor to be in the off state before a target time point, wherein the target time point is not earlier than a time point at which a power-on voltage of the target chip reaches a target voltage, characterised in that the integrated circuit further comprises a power supply control pin; and the control unit is further configured to: output a power-on signal by using the power supply control pin, wherein the power-on signal is used to connect a path for powering on the target chip; and calculate the target time point based on a time point of outputting the power-on signal and a delay for the power-on voltage of the target chip to reach the target voltage. output a power-on signal by using the power supply control pin, wherein the power-on signal is used to connect a path for powering on the target chip; and calculate the target time point based on a time point of outputting the power-on signal and a delay for the power-on voltage of the target chip to reach the target voltage.