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
- Expert mode sample code for PCA9543A (REV 1.0) TXT PCA9543A_1 12/10/2014
IBIS
- PCA9543A IBIS model (REV 1.0) ZIP PCA9543A 9/2/2014
订购信息
| 型号 | 状态 | Package version | Interrupt | Power-on reset | Operating Temperature (Cel) | Reset input pin | Operating voltage (VDC) | Inputs | Outputs | No of Addresses | I2C-bus (kHz) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9543APW | Active | SOT402-1 | yes | -40~85 | yes | 2.3~5.5 | 1 | 2 | 4 | 400 |
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 | EFR | IFR(FIT) | MTBF（小时） | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9543APW | | SOT402-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9543APW,118 (9352 758 04118) | PA9543A | PCA9543APW |    | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9543APW,112 (9352 758 04112) | PA9543A | PCA9543APW | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 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
