PCA9543APW: 带有中断逻辑和复位的2通道I2C总线开关

PCA9543A/43B/43C是一款双向变换开关,通过I²C总线进行控制。SCL/SDA上游对会扇出两个下游对或通道。可选择任何单独的SCx/SDx通道或通道组合,由可编程控制寄存器的内容决定。提供两个中断输入1和1,每对下游对各一个。提供一个中断输出1,用作两个中断输入的AND。

低电平有效的复位输入允许PCA9543X从某一下游I²C总线卡在低电平状态的情况下恢复。将1引脚拉至低电平会复位I²C总线状态机并使所有通道变为取消选择状态,如同内部上电复位功能。

开关的传递门如此构造,使得VDD引脚可用于限制PCA9543X所传递的最高电压。这允许在各SCx/SDx对上使用不同的总线电压,在没有任何额外保护的情况下使1.8 V、2.5 V或3.3 V部件能够与5 V部件通信。外部上拉电阻将总线上拉至各通道想要的电压电平。所有I/O引脚均为5 V耐受。

除从地址的固定部分外,PCA9543A、PCA9543B和PCA9543C完全相同。

PCA9543APW: 产品结构框图
Outline 3d SOT402-1
数据手册 (1)
名称/描述Modified Date
2-channel I2C-bus switch with interrupt logic and reset (REV 8.0) PDF (433.0 kB) PCA9543A_43B [English]03 Apr 2014
应用说明 (2)
名称/描述Modified Date
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English]20 Jun 2007
PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (REV 2.0) PDF (807.0 kB) AN262 [English]01 Oct 2004
用户指南 (3)
名称/描述Modified Date
I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English]28 Apr 2014
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English]03 Apr 2013
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English]13 Jun 2006
手册 (3)
名称/描述Modified Date
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English]01 Aug 2014
Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP® 2-, 4-, and 8-channel... (REV 1.0) PDF (641.0 kB) 75016529 [English]01 Jul 2008
Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 (REV 1.0) PDF (1.8 MB) 75016531 [English]01 Jul 2008
封装信息 (1)
名称/描述Modified Date
plastic thin shrink small outline package; 14 leads; body width 4.4 mm (REV 1.0) PDF (285.0 kB) SOT402-1 [English]08 Feb 2016
包装 (1)
名称/描述Modified Date
TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (217.0 kB) SOT402-1_118 [English]08 Apr 2013
支持信息 (1)
名称/描述Modified Date
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]08 Oct 2009
Design Support
IBIS
订购信息
型号状态Package versionInterruptPower-on resetOperating Temperature (Cel)Reset input pinOperating voltage (VDC)InputsOutputsNo of AddressesI2C-bus (kHz)
PCA9543APWActiveSOT402-1yes-40~85yes2.3~5.5124400
封装环保信息
产品编号封装说明Outline Version回流/波峰焊接包装产品状态部件编号订购码 (12NC)Marking化学成分RoHS / 无铅 / RHF无铅转换日期EFRIFR(FIT)MTBF(小时)MSLMSL LF
PCA9543APWSOT402-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1ActivePCA9543APW,118 (9352 758 04118)PA9543APCA9543APWweek 13, 20050.02.05E811
Bulk PackActivePCA9543APW,112 (9352 758 04112)PA9543APCA9543APWweek 13, 20050.02.05E811
2-channel I2C-bus switch with interrupt logic and reset pca9543cpw
Level shifting techniques in I2C-bus design pca9685pw
PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES pca9516apw
I2C-bus specification and user manual pca9685pw
I2C-bus specification and user manual pca9685pw
I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw
Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP® 2-, 4-, and 8-channel... pca9548a
Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 lm75a
Expert mode sample code for PCA9543A PCA9543APW
PCA9543A IBIS model PCA9543APW
plastic thin shrink small outline package; 14 leads; body width 4.4 mm 74LV164_Q100
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74LV164_Q100
PCA9543A_43B
74LV164