Open-collector/ Open-drain是用于多个device间使用一个连接线来双向(Bi-directionally)通信的技术。 如图所示 因为Collector的pin没有和任何其他device连接所以叫Open Collector。BJT的情况叫做Open-Collector,MOSFET的情况叫做Open-drain。理论上BJT和MOSFET一样。 在input有high信号的话,transistor则为ON,此时Output和Groud...
(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制和监视功能。)但是在配置GPIO管脚的时候,常会见到两种模式:开漏(open-drain,漏极开路)和...
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制和监视...
In open drain configuration, the logic behind the pin can drive it only to ground (logic 0). The other possible state ishigh impedance(Hi-Z). The implementation involves the use of a single transistor. If its drain terminal is open (the device is off) the pin is left floating to Hi-...
求翻译:High voltage, high current, open drain input/output port是什么意思?待解决 悬赏分:1 - 离问题结束还有 High voltage, high current, open drain input/output port问题补充:匿名 2013-05-23 12:26:38 高电压、 高电流、 开放的排水渠输入/输出端口...
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制和监视...
There is not any open drain input, but open drain output. If you want to use it as input in the same time you need to write to output buffer logical 1 GPIOx_PDOR (PTA17 equals to GPIO0[7] ). In that case output transistor will be closed and on the pin will be logical 1. You...
Open-Drain&Push-Pull 在配置GPIO(General Purpose Input Output)管脚的时候,常会见到两种模式:开漏(open-drain,漏极开路)和推挽(push-pull)。对此两种模式,有何区别和联系,下面整理了一些资料,来详细解释一下: 一、Push-Pull推挽输出 1、原理 输出的器件是指输出脚内部集成有一对互补的MOSFET:...
An improved pull-up transistor is provided for use as an open drain input/output structure. The transistor includes a source and a drain that define a channel between them. An impurity implantation region in the channel does not reach both the source and the drain. The impurity can reach onl...
Purpose: a structure of a bright ditch input/output terminal and its manufacturing method of semiconductor device is provided, it can be applied to a MASKROM embedded MCUs and an EPROM embedded MCUs, a grid line width of the enhancement transistor for being greater than the impurity implantation...