The PCA9517 is a CMOS integrated circuit that provides level shifting between lowvoltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) I2c-bus or SMBus applications.While retaining all the operating modes and features of the I2c-bus system during thelevel shifts, it also permits extension of the I2c-bus by providing bidirectional buffering forboth the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF. Usingthe PCA9517 enables the system designer to isolate two halves of a bus for both voltageand capacitance. The SDA and SCL pins are over voltage tolerant and arehigh-impedance when the PCA9517 is unpowered.
标签： translating Level 9517 PCA
上传时间： 2013-12-25
上传用户：wsf950131
The PCA9537 is a 10-pin CMOS device that provides 4 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.
上传时间： 2013-10-13
上传用户：wuchunzhong
PCA9517 是一款基于CMOS 工艺的低电压I2c 中继器，在I2c 总线或SMBus 应用中进行高低电压转换。PCA9517 能够在电平转换期间保持总线所有的操作模式和特性，通过数据线（SDA）和时钟线（SCL）的双向缓存实现I2c 总线扩展，总线最大容性负载为400pF。PCA9517 能够隔离器件总线两端的电压和容性负载。SDA 和SCL 引脚具有过压保护功能，在掉电的情况下为高阻状态。
上传时间： 2013-10-08
上传用户：zgz317
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.
上传时间： 2014-01-24
上传用户：youmo81
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.
上传时间： 2013-11-10
上传用户：ewtrwrtwe
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。
上传时间： 2013-11-16
上传用户：黄华强
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.
上传时间： 2014-12-27
上传用户：nshark
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.
上传时间： 2013-10-09
上传用户：3294322651
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。
上传时间： 2013-11-23
上传用户：brilliantchen
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.
上传时间： 2013-12-06
上传用户：europa_lin
