搜索：I2C接口 - 虫虫下载站

单片机编程  PCA9540B 2channel I2C bus mult

The PCA9540B is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C-bus.The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.Only one SCx/SDx channel is selected at a time, determined by the contents of theprogrammable control register.

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单片机编程  PCA9541 2 to 1 I2C-bus master

The PCA9541 is a 2-to-1 I2C-bus master selector designed for high reliability dual masterI2C-bus applications where system operation is required, even when one master fails orthe controller card is removed for maintenance. The two masters (for example, primaryand back-up) are located on separate I2C ...

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单片机编程  PCA9519 4通道I2C-bus SMBus 中继器

PCA9519 是一个4 通道的I2C 总线/SMBus 中继器，可以实现将低电压两线串行总线接口的处理器与标准的I2C 总线或SMBus I/O 相连。该中继器在电平转换中保持I2C 总线系统所有的模式和特点的同时，允许通过给数据总线（SDA）和时钟总线（SCK）提供双向缓冲区来扩展I2C 总线，从而使I2C 总线或SMBus 在高电压下最大容限电容为400 ...

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单片机编程  PCA9542A 2channel I2C bus mult

The PCA9542A is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C-bus.The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.Only one SCx/SDx channel is selected at a time, determined by the contents of theprogrammable control register. Two interrupt inp ...

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单片机编程  PCA9544A I2C多路复用器

PCA9544A 是NXP 公司生产的I2C 总线多路复用器，通过该器件可以将一路I2C 总线扩展为4 路I2C 总线。将1 路上行SDA/SCL 通道扩展为4 路下行通道。通过对内部可编程寄存器进行配置，在同一时间可以任意选择一对SCx/SDx 线。器件拥有四路输入中断，INT0到INT3，分别对应着四路下行通道。该器件还有一个输出中断，输出中断的状 ...

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单片机编程  PCA9545A/PCA9545B/PCA9545C I2C

PCA9545A/45B/45C 是一款I2C 总线扩展器件，通过它可以将一路I2C 总线扩展为四路，在对内部控制寄存器进行相应配置后，可同时选择一路或者多路下行I2C 总线与上行I2C 总线相连。该器件具有四个中断输入INT0 - INT3 和一个中断输出INT ，分别对应四路下行I2C总线和一路上行I2C 总线，四个中断输入相“与”后控制中断输出INT ...

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单片机编程  PCA9549D/PCA9549PW/PCA9549B I2

PCA9549 是一款8 路选择开关器件，通过I2C 总线接口对开关进行控制

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单片机编程  PCA9546A 4 channel I2C bus swi

The PCA9546A is a quad bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individualSCx/SDx channel or combination of channels can be selected, determined by thecontents of the programmable control register.

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单片机编程  PCA9555 16bit I2C-bus and SMBu

The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lo ...

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单片机编程  PCA9546A I2C多路复用器和开关

PCA9546A 是一款I2C 多路复用器和开关，能实现I2C 总线扩展、电平转换及总线功能恢复

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