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模拟I2C

  • PCA9538 8bit I2C bus and SMBus

    The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallelInput/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applicationsand was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.I/O expanders provide a simple solution when additional I/O is needed for ACPI powerswitches, sensors, push-buttons, LEDs, fans, etc.

    标签: SMBus 9538 8bit PCA

    上传时间: 2014-01-24

    上传用户:youmo81

  • PCA9539 PCA9539R 16-bit I2C-bu

    The PCA9539; PCA9539R is a 24-pin CMOS device that provides 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion with interrupt and reset forI2C-bus/SMBus applications and was developed to enhance the NXP Semiconductorsfamily of I2C-bus I/O expanders. I/O expanders provide a simple solution when additionalI/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.

    标签: 9539 PCA 9539R C-bu

    上传时间: 2013-11-10

    上传用户:ewtrwrtwe

  • PCA9518A I2C 中继器集线器与扩展器

    PCA9518 是一款采用BiCMOS 工艺的总线集线器,通过它可以扩展I2C 和SMBus 系统。PCA9518 在保持总线操作模式和特性的情况下,通过缓存数据线(SDA)和时钟线(SCL)的数据实现I2C 总线扩展,使总线最大容性负载为400pF。

    标签: 9518A 9518 PCA I2C

    上传时间: 2013-11-16

    上传用户:黄华强

  • 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.

    标签: 2channel 9540B 9540 mult

    上传时间: 2014-12-28

    上传用户:nshark

  • 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-buses that connect to the same downstreamI2C-bus slave devices. I2C-bus commands are sent by either I2C-bus master and are usedto select one master at a time. Either master at any time can gain control of the slavedevices if the other master is disabled or removed from the system. The failed master isisolated from the system and will not affect communication between the on-line masterand the slave devices on the downstream I2C-bus.

    标签: master C-bus 9541 PCA

    上传时间: 2013-10-09

    上传用户:3294322651

  • 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400PF。SDA 和SCL 引脚具有耐压保护功能,当PCA9519 掉电时,均呈现出高阻抗特性。

    标签: C-bus SMBus 9519 PCA

    上传时间: 2013-11-23

    上传用户:brilliantchen

  • 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 inputs, INT0 and INT1, one for each of theSCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as anAND of the two interrupt inputs, is provided.

    标签: 2channel 9542A 9542 mult

    上传时间: 2013-12-07

    上传用户:europa_lin

  • 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,输出中断的状态由四个输入中断通过“与”逻辑控制。

    标签: 9544A 9544 PCA I2C

    上传时间: 2013-11-17

    上传用户:woshinimiaoye

  • 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 状态。

    标签: 9545 PCA I2C

    上传时间: 2014-01-25

    上传用户:ainimao

  • 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.

    标签: channel 9546A 9546 PCA

    上传时间: 2013-11-16

    上传用户:cc1915