而open-drain所消耗的电流相对较小,由电阻R所限制,而R不能太小,因为当输出为低电平的时候,需要sink更低的transistor,这意味着更高的功耗。(此段原文:because the lower transistor has to sink that current when the output is low; that means higher power consumption.)而open-drain的好处之一是,允许你csho...
而open-drain所消耗的电流相对较小,由电阻R所限制,而R不能太小,因为当输出为低电平的时候,需要sink更低的transistor,这意味着更高的功耗。(此段原文:because the lower transistor has to sink that current when the output is low; that means higher power consumption.) 而open-drain的好处之一是,允许你cs...
PURPOSE:To reduce delay time and to obtain an open-drain output buffer with superior responsiveness and high noise resistance by turning on a Pch transistor until open-drain output goes to a High level when the output transits from a Low level to the High level. CONSTITUTION:A first Nch ...
【open-drain和push-pull的总结】 对于GPIO的模式的设置,在不考虑是否需要额外的上拉电阻的情况下,是设置为open-drain还是push-pull,说到底,还是个权衡的问题: 如果你想要电平转换速度快的话,那么就选push-pull,但是缺点是功耗相对会大些。 如果你想要功耗低,且同时具有“线与”的功能,那么就用open-drain的模式。
(此段原文:because the lower transistor has to sink that current when the output is low; that means higher power consumption.)而open-drain的好处之一是,允许你cshort(?)多个open-drain的电路,公用一个上拉电阻,此种做法称为wired-OR连接,此时可以通过拉低任何一个IO的pin脚使得输出为低电平。为了输出高...
【Open-Drain与Push-Pull】 GPIO的功能,简单说就是可以根据自己的需要去配置为输入或输出。(General Purpose Input Output,简称为GPIO或总线扩展器,利用工业标准I2C、SMBus™或SPI™接口简化了I/O口的扩展。当微控制器或芯片组没有足够的I/O端口,或当系统需要采用远端串行通信或控制时,GPIO产品能够提供额外的控...
The open-drain output lacks the top transistor. When the output has to go high you simply turn off the bottom transistor, but the line is now pulled high only by the pullup resistor. Your micro allows you to select between the two types, which means that by setting some bits in some ...
An open-collector/open-drain signal wire can also be bi-directional. Bi-directional means that a device can both output and input a signal on the wire at the same time. In addition to controlling the state of its pin that is connected to the signal wire (active, or non-active), a de...
What is open-drain and push-pull? How do I configure the digital output lines of my NI device to be Open-Drain (open collector) or Push-Pull (active drive)?If you are unfamiliar with what the Open-Drain or Push-Pull method means, please see the following documentation on choosing ...
Push-pull with one FTDI output as (non-)inverted data line Open drain with one FTDI output as (non-)inverted output-enable Tristate with one FTDI output as (non-)inverted data line and another FTDI output as (non-)inverted output-enable ...