Several states of microcontroller IO port output

QWE4562009

Several states of microcontroller IO port output [Copy link]

Several states of microcontroller IO port output

1. What are the differences between the open-drain output and open-drain multiplexed output of a microcontroller?

2. What are the differences between the push-pull output and push-pull multiplexed output of a microcontroller?

3. The open-drain output of the microcontroller can only output a low level, and an external pull-up resistor is required to output a high level; while the push-pull output can truly output a high level. Apart from this, what other differences are there?

Please talk about the above from the perspective of electronic application technology, not a bunch of mathematical models.

QWE4562009

Jacktang

The requirements for the answer are a bit high. I am studying electronic technology and I am not allowed to use mathematical models to explain it.

Pure language narration,,,,,,,,,,,,

QWE4562009

Jacktang posted on 2021-8-25 08:37 The requirements for answers are a bit high. I am studying electronic technology and I am not allowed to use mathematical models to explain. Pure language description,,,,,,,,,,,

Mr. Tang, how should I ask? I want to know what method to choose in what situation. IO input and output mode