PCA9547 | NXP 半导体

安全互联汽车

工业

消费电子

技术

带复位功能的8通道I²C总线多路复用器

PCA9547 正常供应

PCA9547是一款8通道双向转换多路复用器，通过I²C总线进行控制。SCL/SDA上游对会扇出8个下游对或通道。一次只可选择一条SCx/SDx通道，由可编程控制寄存器的内容决定。器件上电时会连接通道0，允许控制器和该通道上的下游器件之间的即时通信。

低电平有效的复位输入允许PCA9547从某一下游I²C总线卡在低电平状态的情况下恢复。将RESET引脚拉至低电平可将I²C总线状态机复位，从而导致除了通道0以外的其它所有通道均处于未选定状态，这样控制器就可以重新控制总线。

多路复用器传输门的构造使得VDD引脚可用于限制PCA9547传递的最大高压。这允许在各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1.8V、2.5V或3.3V部件能够与5V部件进行通信。外部上拉电阻将总线上拉至每个通道所需的电压电平。所有I/O引脚均可容许5V电压。

产品详情

框图

选择框图:

PCA9547

PCA9547 Block Diagram

PCA9547BS, PCA9547D, PCA9547PW

PCA9547BS, PCA9547D, PCA9547PW

获取框图PDF

特性

主要特性

  • 八选一双向转换多路复用器
  • I²C总线接口逻辑；兼容SMBus标准
  • 低电平有效的RESET输入
  • 3个地址引脚，允许最多8个器件连接至I²C总线
  • 通过I²C总线进行通道选择，一次一个通道
  • 上电时除了已连接的通道0之外其它所有通道均处于未选定状态
  • 低导通电阻多路复用器
  • 允许在1.8V、2.5V、3.3V和5V总线之间进行电压电平转换
  • 上电时无脉冲干扰
  • 支持热插入
  • 低待机电流
  • 工作电源电压范围：2.3V至5.5V
  • 容许5V输入电压
  • 时钟频率：0Hz至400kHz
  • ESD保护：按JESD22-A114超过2000V HBM，按JESD22-C101超过1000V CDM
  • 根据JEDEC标准JESD78完成超过100mA的闭锁测试

封装方式

  • SO24、TSSOP24和HVQFN24

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N true 0 PSPPCA9547zh 12 包装信息 Packing Information t935 3 封装信息 Package Information t790 3 应用笔记 Application Note t789 1 手册 Brochure t518 1 数据手册 Data Sheet t520 1 用户指南 User Guide t792 2 简介 Fact Sheet t523 1 zh zh zh 数据手册 Data Sheet 1 1 4.0 English 1442060639620719095721 PSP 256.3 KB None None documents None 1442060639620719095721 /docs/en/data-sheet/PCA9547.pdf 256269 /docs/en/data-sheet/PCA9547.pdf PCA9547 documents N N 2014-04-01 8-channel I2C-bus multiplexer with reset /docs/en/data-sheet/PCA9547.pdf /docs/en/data-sheet/PCA9547.pdf Data Sheet N 980000996212993340 2023-08-24 pdf N en Apr 1, 2014 980000996212993340 Data Sheet Y N 8-channel I2C-bus multiplexer with reset 应用笔记 Application Note 1 2 1.0 English Level shifting techniques in I2C-bus design 1442089228752700755238 PSP 53.7 KB Registration without Disclaimer None documents Extended 1442089228752700755238 /secured/assets/documents/en/application-note/AN10441.pdf 53707 /secured/assets/documents/en/application-note/AN10441.pdf AN10441 documents Y N 2016-07-11 AN10441, Level Shifting Techniques in I²C-Bus Design - Application Note /webapp/Download?colCode=AN10441&lang_cd=zh /secured/assets/documents/en/application-note/AN10441.pdf Application Note N 645036621402383989 2024-07-12 pdf Y en Jun 20, 2007 645036621402383989 Application Note Y N AN10441, Level Shifting Techniques in I²C-Bus Design - Application Note 用户指南 User Guide 2 3 6.0 Japanese 1442125286808710770774ja PSP 751.0 KB None None documents None 1442125286808710770774 /docs/ja/user-guide/UM10204.pdf 750958 /docs/ja/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/ja/user-guide/UM10204.pdf /docs/ja/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 ja Apr 28, 2014 132339537837198660 User Guide Y N I2C-bus specification and user manual 7.0 English NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. 1442125286808710770774 PSP 751.0 KB None None documents None 1442125286808710770774 /docs/en/user-guide/UM10204.pdf 750958 /docs/en/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf /docs/en/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 pdf N en Oct 1, 2021 132339537837198660 User Guide Y N I2C-bus specification and user manual 4 1.0 English 1442125429801702674389 PSP 749.6 KB Registration without Disclaimer None documents Extended 1442125429801702674389 /secured/assets/documents/en/user-guide/UM10528.pdf 749626 /secured/assets/documents/en/user-guide/UM10528.pdf UM10528 documents Y N 2012-02-06 PCA9632 demonstration board OM13269 /webapp/Download?colCode=UM10528&lang_cd=zh /secured/assets/documents/en/user-guide/UM10528.pdf User Guide N 132339537837198660 2025-02-10 pdf Y en Feb 6, 2012 132339537837198660 User Guide Y N PCA9632 demonstration board OM13269 手册 Brochure 1 5 1.0 English 1442124653171725284460 PSP 656.7 KB None None documents None 1442124653171725284460 /docs/en/brochure/75016529.pdf 656663 /docs/en/brochure/75016529.pdf 75016529 documents N N 2011-09-12 Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP 2-, 4-, and 8-channel I2C/SMBus muxes and switches PCA954x /docs/en/brochure/75016529.pdf /docs/en/brochure/75016529.pdf Brochure N 712453003803778552 2024-08-21 pdf N en Apr 8, 2018 712453003803778552 Brochure Y N Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP 2-, 4-, and 8-channel I2C/SMBus muxes and switches PCA954x 简介 Fact Sheet 1 6 1 English 1557513331449729197888 PSP 436.6 KB None None documents None 1557513331449729197888 /docs/en/fact-sheet/PCA9xx-FactSheet.pdf 436600 /docs/en/fact-sheet/PCA9xx-FactSheet.pdf PCA9XX-FACTSHEET documents N N 2019-05-10 PCA9XX FactSheet /docs/en/fact-sheet/PCA9xx-FactSheet.pdf /docs/en/fact-sheet/PCA9xx-FactSheet.pdf Fact Sheet N 736675474163315314 2022-12-07 pdf N en May 10, 2019 736675474163315314 Fact Sheet Y N PCA9XX FactSheet 封装信息 Package Information 3 7 1.0 English 1455079389558702995033 PSP 206.7 KB None None documents None 1455079389558702995033 /docs/en/package-information/SOT616-1.pdf 206724 /docs/en/package-information/SOT616-1.pdf SOT616-1 documents N N 2016-02-12 plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT616-1.pdf /docs/en/package-information/SOT616-1.pdf Package Information N 302435339416912908 2024-10-21 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm 8 1.0 English 1455079690215710569313 PSP 361.8 KB None None documents None 1455079690215710569313 /docs/en/package-information/SOT355-1.pdf 361766 /docs/en/package-information/SOT355-1.pdf SOT355-1 documents N N 2016-02-12 plastic thin shrink small outline package; 24 leads; body width 4.4 mm /docs/en/package-information/SOT355-1.pdf /docs/en/package-information/SOT355-1.pdf Package Information N 302435339416912908 2024-10-21 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic thin shrink small outline package; 24 leads; body width 4.4 mm 9 1.0 English 1455078741406708822210 PSP 388.2 KB None None documents None 1455078741406708822210 /docs/en/package-information/SOT137-1.pdf 388157 /docs/en/package-information/SOT137-1.pdf SOT137-1 documents N N 2016-02-12 plastic small outline package; 24 leads; body width 7.5 mm /docs/en/package-information/SOT137-1.pdf /docs/en/package-information/SOT137-1.pdf Package Information N 302435339416912908 2024-10-21 pdf N en Feb 8, 2016 302435339416912908 Package Information Y N plastic small outline package; 24 leads; body width 7.5 mm 包装信息 Packing Information 3 10 1.0 English 1442131573152735317266 PSP 200.6 KB None None documents None 1442131573152735317266 /docs/en/packing/SOT616-1_118.pdf 200576 /docs/en/packing/SOT616-1_118.pdf SOT616-1_118 documents N N 2014-01-16 HVQFN24; reel pack; standard product orientation; 12NC ending 118 /docs/en/packing/SOT616-1_118.pdf /docs/en/packing/SOT616-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Jan 16, 2014 145666923842250347 Packing Information Y N HVQFN24; reel pack; standard product orientation; 12NC ending 118 11 4.1 English 1442131174599718070838 PSP 232.1 KB None None documents None 1442131174599718070838 /docs/en/packing/SOT355-1_118.pdf 232140 /docs/en/packing/SOT355-1_118.pdf SOT355-1_118 documents N N 2013-04-17 TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT355-1_118.pdf /docs/en/packing/SOT355-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 15, 2013 145666923842250347 Packing Information Y N TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 12 4.0 English 1442131585399728249079 PSP 240.7 KB None None documents None 1442131585399728249079 /docs/en/packing/SOT137-1_118.pdf 240736 /docs/en/packing/SOT137-1_118.pdf SOT137-1_118 documents N N 2013-04-17 SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT137-1_118.pdf /docs/en/packing/SOT137-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 12, 2013 145666923842250347 Packing Information Y N SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 false 0 PCA9547 downloads zh-Hans true 1 Y PSP Y Y 包装信息 3 /docs/en/packing/SOT616-1_118.pdf 2014-01-16 1442131573152735317266 PSP 10 Jan 16, 2014 Packing Information None /docs/en/packing/SOT616-1_118.pdf English documents 200576 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT616-1_118.pdf HVQFN24; reel pack; standard product orientation; 12NC ending 118 /docs/en/packing/SOT616-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N HVQFN24; reel pack; standard product orientation; 12NC ending 118 200.6 KB SOT616-1_118 N 1442131573152735317266 /docs/en/packing/SOT355-1_118.pdf 2013-04-17 1442131174599718070838 PSP 11 Apr 15, 2013 Packing Information None /docs/en/packing/SOT355-1_118.pdf English documents 232140 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT355-1_118.pdf TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT355-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 4.1 N N TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 232.1 KB SOT355-1_118 N 1442131174599718070838 /docs/en/packing/SOT137-1_118.pdf 2013-04-17 1442131585399728249079 PSP 12 Apr 12, 2013 Packing Information None /docs/en/packing/SOT137-1_118.pdf English documents 240736 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT137-1_118.pdf SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT137-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 4.0 N N SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 240.7 KB SOT137-1_118 N 1442131585399728249079 封装信息 3 /docs/en/package-information/SOT616-1.pdf 2016-02-12 1455079389558702995033 PSP 7 Feb 8, 2016 Package Information None /docs/en/package-information/SOT616-1.pdf English documents 206724 None 302435339416912908 2024-10-21 N /docs/en/package-information/SOT616-1.pdf plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT616-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm 206.7 KB SOT616-1 N 1455079389558702995033 /docs/en/package-information/SOT355-1.pdf 2016-02-12 1455079690215710569313 PSP 8 Feb 8, 2016 Package Information None /docs/en/package-information/SOT355-1.pdf English documents 361766 None 302435339416912908 2024-10-21 N /docs/en/package-information/SOT355-1.pdf plastic thin shrink small outline package; 24 leads; body width 4.4 mm /docs/en/package-information/SOT355-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic thin shrink small outline package; 24 leads; body width 4.4 mm 361.8 KB SOT355-1 N 1455079690215710569313 /docs/en/package-information/SOT137-1.pdf 2016-02-12 1455078741406708822210 PSP 9 Feb 8, 2016 Package Information None /docs/en/package-information/SOT137-1.pdf English documents 388157 None 302435339416912908 2024-10-21 N /docs/en/package-information/SOT137-1.pdf plastic small outline package; 24 leads; body width 7.5 mm /docs/en/package-information/SOT137-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic small outline package; 24 leads; body width 7.5 mm 388.2 KB SOT137-1 N 1455078741406708822210 应用笔记 1 /secured/assets/documents/en/application-note/AN10441.pdf 2016-07-11 1442089228752700755238 PSP 2 Jun 20, 2007 Application Note Level shifting techniques in I2C-bus design Registration without Disclaimer /secured/assets/documents/en/application-note/AN10441.pdf English documents 53707 None 645036621402383989 2024-07-12 Y /webapp/Download?colCode=AN10441&lang_cd=zh AN10441, Level Shifting Techniques in I²C-Bus Design - Application Note /secured/assets/documents/en/application-note/AN10441.pdf documents 645036621402383989 Application Note N en Extended Y pdf 1.0 Y N AN10441, Level Shifting Techniques in I²C-Bus Design - Application Note 53.7 KB AN10441 N 1442089228752700755238 手册 1 /docs/en/brochure/75016529.pdf 2011-09-12 1442124653171725284460 PSP 5 Apr 8, 2018 Brochure None /docs/en/brochure/75016529.pdf English documents 656663 None 712453003803778552 2024-08-21 N /docs/en/brochure/75016529.pdf Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP 2-, 4-, and 8-channel I2C/SMBus muxes and switches PCA954x /docs/en/brochure/75016529.pdf documents 712453003803778552 Brochure N en None Y pdf 1.0 N N Add design fl exibility with multi-channel I2C/SMBus muxes and switches; NXP 2-, 4-, and 8-channel I2C/SMBus muxes and switches PCA954x 656.7 KB 75016529 N 1442124653171725284460 数据手册 1 /docs/en/data-sheet/PCA9547.pdf 2014-04-01 1442060639620719095721 PSP 1 Apr 1, 2014 Data Sheet None /docs/en/data-sheet/PCA9547.pdf English documents 256269 None 980000996212993340 2023-08-24 N /docs/en/data-sheet/PCA9547.pdf 8-channel I2C-bus multiplexer with reset /docs/en/data-sheet/PCA9547.pdf documents 980000996212993340 Data Sheet N en None Y pdf 4.0 N N 8-channel I2C-bus multiplexer with reset 256.3 KB PCA9547 N 1442060639620719095721 用户指南 2 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 3 Oct 1, 2021 User Guide NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. None /docs/en/user-guide/UM10204.pdf English documents 750958 None 132339537837198660 2024-10-24 N /docs/en/user-guide/UM10204.pdf I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf documents 132339537837198660 User Guide N en None Y pdf 7.0 N N I2C-bus specification and user manual 751.0 KB UM10204 N 1442125286808710770774 /secured/assets/documents/en/user-guide/UM10528.pdf 2012-02-06 1442125429801702674389 PSP 4 Feb 6, 2012 User Guide Registration without Disclaimer /secured/assets/documents/en/user-guide/UM10528.pdf English documents 749626 None 132339537837198660 2025-02-10 Y /webapp/Download?colCode=UM10528&lang_cd=zh PCA9632 demonstration board OM13269 /secured/assets/documents/en/user-guide/UM10528.pdf documents 132339537837198660 User Guide N en Extended Y pdf 1.0 Y N PCA9632 demonstration board OM13269 749.6 KB UM10528 N 1442125429801702674389 简介 1 /docs/en/fact-sheet/PCA9xx-FactSheet.pdf 2019-05-10 1557513331449729197888 PSP 6 May 10, 2019 Fact Sheet None /docs/en/fact-sheet/PCA9xx-FactSheet.pdf English documents 436600 None 736675474163315314 2022-12-07 N /docs/en/fact-sheet/PCA9xx-FactSheet.pdf PCA9XX FactSheet /docs/en/fact-sheet/PCA9xx-FactSheet.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 1 N N PCA9XX FactSheet 436.6 KB PCA9XX-FACTSHEET N 1557513331449729197888 true Y Products

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