2022年5月18日 · Open-drain depends on a pullup resistor to provide the high state, while the low state is actively created by a transistor. So the pullup network has relatively high impedance to …

2016年6月27日 · Open-Drain Or Open-Collector. This jargon just described how the circuit is built. Just as described in robert bristow-johnson's link, the open-drain/collector circuit has a …

2021年4月6日 · \$\begingroup\$ To expand a bit: it's very common to have digital sensors used in industrial equipment that use open-drain outputs. It's also common that they'll be capable of …

2016年4月22日 · Open drain is useful when multiple gates or pins are connected together with an (external or internal) pull-up. If all the pin are high, they are all open circuits and the pull-up …

2024年1月29日 · The reason open-collector and open-drain is used is because you cannot tie totem-pole outputs together. If two totem-pole outputs are fighting to control the line, one …

2015年2月7日 · However, there are open-drain buffers where the buffer can drive the line LO but can not itself monitor the line to read its' current logic level. Let's take the example of a …

2016年8月16日 · When you configure the GPIO pin of a microcontroller as Output. The Output pin can either be as Open-Drain type or Push-Pull Type. Both these configurations tell us how the …

2020年9月19日 · Open-drain output plus wire-and work with some concepts in I2C system perfectly. With open-drain output, one device can output LOW. And when it is going to output …

2017年6月22日 · Open drain means that the output port is directly connected to the "drain" (normally named "D") pin of a MOSFET (NMOS most probably). It is similar with the term of …

2012年8月4日 · Apart from wired-ORing (think I2C) open drain/collector is often used to control something operating at a different voltage than the logic, often a higher voltage. With some low …