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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 Semiconduct

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 b

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 t

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, determine

PCA9544 是NXP 公司生產(chǎn)的I2C 總線擴(kuò)展器件，通過(guò)它可以將1 路I2C 總線擴(kuò)展為4路。在對(duì)內(nèi)部控制寄存器進(jìn)行相應(yīng)配置后，可選擇4 路下行I2C 總線中的任1 路與上行I2C總線連接。具

The PCA9544A provides 4 interrupt inputs, one for each channeland one open drain interrupt output. When an interrupt is generated byany device, it will be detected by the PCA9544A and the interruptoutput will be driven LOW. The

PCA9544A 是NXP 公司生產(chǎn)的I2C 總線多路復(fù)用器，通過(guò)該器件可以將一路I2C 總線擴(kuò)展為4 路I2C 總線。將1 路上行SDA/SCL 通道擴(kuò)展為4 路下行通道。通過(guò)對(duì)內(nèi)部可編程寄存器進(jìn)行配置

PCA9545A/45B/45C 是一款I(lǐng)2C 總線擴(kuò)展器件，通過(guò)它可以將一路I2C 總線擴(kuò)展為四路，在對(duì)內(nèi)部控制寄存器進(jìn)行相應(yīng)配置后，可同時(shí)選擇一路或者多路下行I2C 總線與上行I2C 總線相連。

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,

PCA9546A 是一款I(lǐng)2C 多路復(fù)用器和開關(guān)，能實(shí)現(xiàn)I2C 總線擴(kuò)展、電平轉(zhuǎn)換及總線功能恢復(fù)