PCA9543A

2-channel I2C-bus switch with interrupt logic and reset

Generaldescription ThePCA9543A/43B/43Cisabidirectionaltranslatingswitch,controlledbytheI2C-bus. TheSCL/SDAupstreampairfansouttotwodownstreampairs,orchannels. Features ■1-of-2bidirectionaltranslatingswitches ■I2C-businterfacelogic;compatiblewithSMBusstanda

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PCA9543A

具有中斷、復(fù)位和電壓轉(zhuǎn)換功能的 2 通道 2.3V 至 5.5V I2C/SMBus 開關(guān)

PCA9543A 是一款由 I2C 總線控制的雙路雙向轉(zhuǎn)換開關(guān)。SCL/SDA 上行對擴(kuò)展到兩個(gè)下行對，或者通道。根據(jù)可編程控制寄存器的內(nèi)容，可選擇任一單獨(dú)的 SCn/SDn 通道或者這兩個(gè)通道。提供兩個(gè)中斷輸入 (INT1-INT0)，每個(gè)中斷輸入針對一個(gè)下行對。一個(gè)中斷輸出 (INT) 可作為兩個(gè)中斷輸入的與運(yùn)算結(jié)果。\n\n一個(gè)低電平有效復(fù)位 (RESET) 輸入使得 PCA9543A 能夠在其中一個(gè)下行 I2C 總線長時(shí)間處于低電平的情況下恢復(fù)。 將 RESET 下拉為低電平會(huì)使 I2C 狀態(tài)機(jī)復(fù)位，并且使這兩個(gè)通道取消選中，這一功能與內(nèi)部上電復(fù)位功能的作用一樣。\n\n由于開關(guān)上有導(dǎo); ? 2 選 1 雙向轉(zhuǎn)換開關(guān)\n? 與 I2C 總線和系統(tǒng)管理總線 (SMBus) 兼容\n? 兩個(gè)低電平有效中斷輸入\n? 低電平有效中斷輸出\n? 低電平有效復(fù)位輸入\n? 兩個(gè)地址引腳，允許在 I2C 總線上使用多達(dá)四個(gè) PCA9543A 器件\n? 以任意組合通過 I2C 總線實(shí)現(xiàn)通道選擇\n? 加電時(shí)所有開關(guān)通道取消選定\n? 低 RON 開關(guān)\n? 支持 1.8V、2.5V、3.3V 和 5V 總線間的電壓電平轉(zhuǎn)換\n? 加電時(shí)無干擾\n? 支持熱插入\n? 低待機(jī)電流\n? 工作電源電壓范圍為 2.3V 至 5.5V\n? 5.5V 耐壓輸入\n? 0 至 400kHz 時(shí)鐘頻;

PCA9543A

TWO-CHANNEL I2C-BUS SWITCH WITH INTERRUPT LOGIC AND RESET

PCA9543A

2-channel I2C-bus switch with interrupt logic and reset

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PCA9543A

Smart, simple solutions for the 12 most common design concerns

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PCA9543AD

2-channel I2C-bus switch with interrupt logic and reset

Generaldescription ThePCA9543A/43B/43Cisabidirectionaltranslatingswitch,controlledbytheI2C-bus. TheSCL/SDAupstreampairfansouttotwodownstreampairs,orchannels. Features ■1-of-2bidirectionaltranslatingswitches ■I2C-businterfacelogic;compatiblewithSMBusstanda

恩XP

PCA9543AD

2-channel I2C-bus switch with interrupt logic and reset

The PCA9543A/43B is a bidirectional translating switch, controlled by the I2C-bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any individual SCx/SDx channels or combination of channels can be selected, determined by the contents of the programmable control register. Two; 1-of-2 bidirectional translating switches\nI2C-bus interface logic; compatible with SMBus standards\n2 active LOW interrupt inputs\nActive LOW interrupt output\nActive LOW reset input\n2 address pins allowing up to 4 devices on the I2C-bus\nAlternate address versions A and B allow up to a total of 1;

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PCA9543APW

2-channel I2C-bus switch with interrupt logic and reset

The PCA9543A/43B is a bidirectional translating switch, controlled by the I2C-bus. The SCL/SDA upstream pair fans out to two downstream pairs, or channels. Any individual SCx/SDx channels or combination of channels can be selected, determined by the contents of the programmable control register. Two; 1-of-2 bidirectional translating switches\nI2C-bus interface logic; compatible with SMBus standards\n2 active LOW interrupt inputs\nActive LOW interrupt output\nActive LOW reset input\n2 address pins allowing up to 4 devices on the I2C-bus\nAlternate address versions A and B allow up to a total of 1;

恩XP

PCA9543APW

2-channel I2C-bus switch with interrupt logic and reset

Generaldescription ThePCA9543A/43B/43Cisabidirectionaltranslatingswitch,controlledbytheI2C-bus. TheSCL/SDAupstreampairfansouttotwodownstreampairs,orchannels. Features ■1-of-2bidirectionaltranslatingswitches ■I2C-businterfacelogic;compatiblewithSMBusstanda

恩XP

PCA9543A_09

2-channel I2C-bus switch with interrupt logic and reset

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