Voltage, Current, Resistance Digital Logic Input/Output What is a Pull-up Resistor Let's say you have an MCU with one pin configured as an input. If there is nothing connected to the pin and your program reads the state of the pin, will it be high (pulled to VCC) or low (pulled ...
The function of a pull-up or pull-down resistor is toconduct awayany undesired electrical chargeso that it cannot impact the input pin's state. (Pull-upresistors prevent the pin from floating by forcingthe signalto VCC when it is not being actively driven.) For this, the resistance of th...
When the button is not pressed, the input pin is pulled high. The value of the pull-up resistor controls the voltage on the input pin. For condition 1, you don't want the resistor's value too low. The lower the resistance, the more power will be used when the button is hit. You...
It is easy to show how to calculate the pull-up resistor usingOhm’s Law: R1 = Vcc/I = 5V/1mA = 5KΩ Another thing is that the larger the pull-up resistance, the slower the pin is to respond to voltage changes.
The appropriate value for the pull-up (or pull-down) resistor is limited by two factors. The first factor is power dissipation. If the resistance value is too low, a high current will flow through the pull-up resistor, heating the device and using up an unnecessary amount of power when ...
1.The Method for Computing the Pull-up Resistor for OC and OD Gate Circuit;OC和OD门上拉电阻阻值的计算技巧 2.Solution methods are: to add resistance in the bus of control group of weapon system;解决方案是:在武器控制组合内部的总线加上拉电阻; 3.Careful consideration must be used when selecti...
网络电阻 网络释义 1. 电阻 ...波动作(Vbus pulsing)、信号线上的提升电阻(Pull-Up Resistance)阻值、下拉电阻 (Pull-Down Resistance)阻值等, … www.docin.com|基于 1 个网页
100K impedance, resistance and you pull a 10K if the voltage point for *100=4.5V (5/100+10) that can be on the high level. When this node is required to be low, just connect it to the ground, and there is a 10K load between the power and the ground:Use a pull-up resistor:
Due to the adoption of the pull-up resistance circuit for preventing reverse current filling, the public signal end is protected from being influenced by the drain current of the connected power supply when a local equipment power supply does not work, and transmission of information with other ...
1) pull-up resistor 工作电阻(器)2) wording resittance 工作电阻3) working resistance 工作电阻,运行电阻4) Elector mechanical actuator/attenuator 机电作动/阻尼器5) motor-operated rheostat 电动操作变阻器6) running capacitor 工作电容器补充资料:50t炼钢电弧炉电抗器、电阻器(SVC)(大冶钢厂) 50t...