When building circuits using microcontrollers, you may encounter this situation: "The input turns HIGH or LOW on its own even ...

In other words the first time the line is pulled high and released it remains high when it should be pulled low by the pull down resistor. This stops many programs working – in particular the open ...

Description: is activated when the enable pin is low. The MIC5503 and MIC5504 have an internal pull-down resistor on the enable pin that disables the output when the enable pin is left floating. This ...

It’s my own fault. I have only myself to blame. I knew I was opening a can of worms when I first thought about writing a column on the topic of applying pull-up and pull-down resistors to the inputs ...

There is a design fault in the RP2350 chip which causes problems with GPIO use in pull down mode. In fact the problem is independent of the pull up mode selected but it shows itself more clearly with ...