Pull-up Resistor
A resistor connected between a signal line and power supply voltage to ensure a defined high state when no other device drives the line.
component
Pull-up Resistor
A pull-up resistor is a Resistor connected between a signal line and the positive Voltage supply to ensure a defined high state.
Definition
Pull-up Resistors are used in digital circuits to ensure signal lines have a defined state when not actively driven. Common in I2C, buttons, and open-drain outputs.