Why use 10k pull-up resistor?

The 10k resistor (R2) is there the make sure the voltage on the pin is held at a stable high level. “High” as in a value close to the supply voltage. The reason that I chose the value 10k is that from my experience I know that 10k to 100k pull-up resistors usually work fine in almost all circuits.

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What is pull-down device?

The device connected to the ground is the pull down device while the device connected to VDD is the pull up device. The pull down device must be say an nmos transistor, while the pull up device can be a resistor an nmos load transistor or a pmos transistor. What is pull-down resistor in microcontroller? What is Pull-down Resistors. Similarly to pull-up resistors, pull-down resistors ensure the voltage between VCC and a microcontroller pin is actively controlled when the switch is open. However, instead of pulling a pin to a high value, such resistors pull the pin to a low valued instead.

What is the typical value of a pull-up resistor?

The short and easy answer is that you want a resistor value on the order of 10kΩ for the pull-up. A low resistor value is called a strong pull-up (more current flows), a high resistor value is called a weak pull-up (less current flows). How do you hook up a pull-down resistor? Pull up resistors pull up a pin to a HIGH state. Pull down resistors pull down a pin to a LOW state. When connected to a switch such a pushbutton, the states of the pins can then be switched to the other when switched on.

What is the role of WR and RD pin?

Pin 16 (WR): Writing Signal to write content on external RAM. Pin 17 (RD): Reading Signal to read contents of external RAM. Are pull-ups the hardest exercise? Pull-ups are one of the hardest exercises. So if you don't master them on your first try, keep working! One of the hardest exercises out there, pull-ups can humble even the strongest gym-goer.

Are pull-ups harder for taller guys?

A Short Physics Lesson for Tall People

Range of Motion–If you have longer arms, you'll have a larger range of motion necessary to do a pull-up, than someone with shorter arms. If you have longer legs, squats will require a greater range of motion. Can the average person do a pull-up? Adults – Data for adults is harder to come by, but my research has led me to conclude the following. Men should be able to perform at least 8 pull-ups, and 13-17 reps is considered fit and strong. And women should be able to perform between 1-3 pull-ups, and 5-9 reps is considered fit and strong.

Are pull-up registers required in I2C *?

SDA and SCL lines of I2C pins needs pull up resistors for sure. Open drain and Open collector terminals needs pull up resistors to maintain the logic levels stable. SDA and SCL lines are likewise. They need pull up resistors to do so the data transmission.