PCA9540BDP: 2通道I2C总线多路复用器

PCA9540B是一款二选一双向变换多路复用器,通过I²C总线进行控制。SCL/SDA上游对会扇出两个SCx/SDx下游对或通道。一次只选择一条SCx/SDx通道,由可编程控制寄存器的内容决定。

上电复位功能会将寄存器设为其默认状态并初始化I²C总线状态机而不选择任何通道。

多路复用器的传递门如此构造,使得VDD引脚可用于限制PCA9540B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。外部上拉电阻可将总线上拉至该通道想要的电压电平。所有I/O引脚均为5 V耐受。

Outline 3d SOT505-1
数据手册 (1)
名称/描述Modified Date
2-channel I2C-bus multiplexer (REV 6.0) PDF (287.0 kB) PCA9540B [English]05 May 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 (2)
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
封装信息 (1)
名称/描述Modified Date
plastic thin shrink small outline package; 8 leads; body width 3 mm (REV 1.0) PDF (240.0 kB) SOT505-1 [English]08 Feb 2016
包装 (1)
名称/描述Modified Date
TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (214.0 kB) SOT505-1_118 [English]15 Apr 2013
支持信息 (1)
名称/描述Modified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English]30 Sep 2013
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)
PCA9540BDPActiveSOT505-1-40~852.3~5.5121400
PCA9540BDP/DGNo Longer ManufacturedSOT505-1-40~852.3~5.5121400
PCA9540BDP/GNo Longer ManufacturedSOT505-1-40~852.3~5.5121400
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
PCA9540BDPSOT505-1Reflow_Soldering_ProfileReel 13" Q1/T1ActivePCA9540BDP,118 (9352 760 36118)9540BPCA9540BDPweek 12, 20050.02.05E811
PCA9540BDP/DGSOT505-1Reflow_Soldering_ProfileReel 13" Q1/T1WithdrawnPCA9540BDP/DG,118 (9352 933 84118)9540BAlways Pb-free0.02.05E811
PCA9540BDP/Q900SOT505-1Reflow_Soldering_ProfileReel 13" Q1/T1DevelopmentPCA9540BDP/Q900J (9353 320 86118)Standard Marking0.02.05E8
2-channel I2C-bus multiplexer pca9540b
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
PCA9540B IBIS model PCA9540BDP
plastic thin shrink small outline package; 8 leads; body width 3 mm pesd5v0l7bas
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... pesd5v0l7bas
PCT2075