The PCA9547 is an octal bidirectional translating multiplexer controlled by the I2C-bus.The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Only oneSCx/SDx channel can be selected at a time, determined by the contents of theprogrammable control register. The device powers up with Channel 0 connected, allowingimmediate communication between the master and downstream devices on that channel.
上传时间： 2014-12-28
上传用户：270189020
The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. TheSCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individualSCx/SDx channel or combination of channels can be selected, determined by thecontents of the programmable control register.An active LOW reset input allows the PCA9548A to recover from a situation where one ofthe downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets theI2C-bus state machine and causes all the channels to be deselected as does the internalPower-on reset function.
上传时间： 2013-10-13
上传用户：bakdesec
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-drain output pin, IO0. The system master can enable the PCA9557’s I/O as either input or output by writing to the configuration register. The system master can also invert the PCA9557 inputs by writing to the active HIGH polarity inversion register. Finally, the system master can reset the PCA9557 in the event of a time-out by asserting a LOW in the reset input. The power-on reset puts the registers in their default state and initializes the I2C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to occur without de-powering the part.
上传时间： 2014-01-18
上传用户：bs2005
PCA9698 是一款40 位I2C 输入/输出扩展器，能够实现I2C/SMBus 应用中40 位GPIO 的扩展
上传时间： 2013-11-21
上传用户：文993
关键词 CAN报文对象的FIFO模式应用摘 要 CAN通信实验
上传时间： 2013-11-03
上传用户：kernor
The P82B715 I2C Buffer was designed toextend the range of the local I2C bus out to50 Meters. This application note describesthe results of testing the buffer on severaldifferent types of cables to determine themaximum operating distances possible. Theresults are summarized in a table for easyreference.
标签： extender P82B715 Using I2C
上传时间： 2014-12-28
上传用户：lou45566
I2C BUS（Inter IC BUS）是NXP 推出的芯片间串行传输总线，它以2 根连线实现了完善的双向同步数据传送，可以极方便地构成多机系统和外围器件扩展系统。I2C 总线采用了器件地址的硬件设置方法，通过软件寻址完全避免了器件的片选线寻址方法，从而使硬件系统具有最简单而灵活的扩展方法。I2C 总线的2 根线（串行数据——SDA，串行时钟——SCL）连接到总线上的任何一个器件，每个器件都应有一个唯一的地址，而且都可以作为一个发送器或接收器。此外，器件在执行数据传输时也可以被看作是主机或从机。
上传时间： 2013-11-05
上传用户：qb1993225
本实验是基于EasyFPGA030的I2C总线接口模块设计，用EasyFPGA030开发套件通过I2C协议实现对二线制I2C串行EEPROM的读写操作，先把数据写入EEPROM，然后再读取出来显示在数码管上
上传时间： 2013-10-21
上传用户：edisonfather
关键词 CAT9534、I2C 总线、SMBus、I/O 扩展器摘 要CAT9534 是一款带中断的8 位并行I2C/SMBus 输入/输出端口扩展器件
上传时间： 2013-10-21
上传用户：rocwangdp
关键词 I2C/SMBus、I/O 口扩展摘 要CAT9554 是是一款基于I2C 和SMBus 接口的8 位通用型输入输出(GPIO)扩展器件
上传时间： 2013-12-31
上传用户：woshinimiaoye
