It is typically used in combination with components such as switches and transistors which physically interrupt the connection of subsequent components to ground or to v cc. Pull down resistors are connected between a particular pin on a microcontroller and the ground terminal. What Is The Purpose Of A Pull Up Resistor In A How To Choose A Pull Up Resistor Value Build Electronic What Is Pull Up And Pull Down Resistor And Where To Use Them A pull down resistor works in the same way as the previous pull up resistor except this time the logic gates input is tied to ground logic level 0 low or it may go high by the operation of a mechanical switch. What is pull down resistor . Calculation of these resistor values explained with a digital logic gate. The pull down resistor r1 which is connected with the ground or 0v. As pull up resistors pull down resistors also ...