带有复位的8位I2C总线和SMBus I/O端口

PCA9557 正常供应

PCA9557是一款硅CMOS电路，为SMBus和I²C总线应用提供并行输入/输出扩展。PCA9557由8位输入端口寄存器、8位输出端口寄存器和I²C总线/SMBus接口组成。具有低电流消耗和高阻抗开漏输出引脚IO0。

通过写入I/O配置寄存器，系统主器件可将PCA9557的I/O用作输入或输出。通过写入高电平有效的极性反转寄存器，系统主器件还可反转PCA9557输入。最后，通过在复位输入中加入低电平，系统主器件可在超时时使PCA9557复位。

上电复位会将寄存器设为其默认状态并初始化I²C总线/SMBus状态机。1引脚可引发相同的复位/初始化而无需使部件断电。

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产品详情

框图

Block diagram: PCA9557BS, PCA9557D, PCA9557PW

获取框图PDF

特征

  • PCA9556具有更低电压、更高性能迁移路径
  • 8通用输入/输出扩展器/收集器
  • 输入/输出配置寄存器
  • 高电平有效的极性反转寄存器
  • I²C总线和SMBus接口逻辑
  • 内部上电复位
  • SCL/SDA输入上有噪音滤波器
  • 低电平有效的复位输入
  • 3个地址引脚允许I²C总线/SMBus上最多有8个器件
  • IO0上的高阻抗开漏
  • 上电时没有脉冲干扰
  • 上电时使所有通道配置为输入
  • 低待机电流
  • 2.3 V至5.5 V的工作电源电压范围
  • 5 V耐受输入/输出
  • 0 kHz至400 kHz时钟频率
  • ESD保护：按JESD22-A114超过2000 V HBM，按JESD22-A115超过150 V MM，按JESD22-C101超过1000 V CDM
  • 已按照JEDEC标准JESD78完成闭锁测试，超过100 mA
  • 提供三种封装：SO16、TSSOP16、HVQFN16

购买/参数

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N true 0 PSPPCA9557zh 17 包装信息 Packing Information t935 4 培训资料 Training Presentation t878 1 封装信息 Package Information t790 2 应用笔记 Application Note t789 5 手册 Brochure t518 1 支持信息 Supporting Information t531 2 数据手册 Data Sheet t520 1 用户指南 User Guide t792 1 zh zh zh 数据手册 Data Sheet 1 1 7.0 English 1442061142337732570622 PSP 289.1 KB None None documents None 1442061142337732570622 /docs/en/data-sheet/PCA9557.pdf 289066 /docs/en/data-sheet/PCA9557.pdf PCA9557 documents N N 2013-12-10 8-bit I2C-bus and SMBus I/O port with reset /docs/en/data-sheet/PCA9557.pdf /docs/en/data-sheet/PCA9557.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Dec 10, 2013 980000996212993340 Data Sheet Y N 8-bit I2C-bus and SMBus I/O port with reset 应用笔记 Application Note 5 2 2.0 English 1442088992304705189883 PSP 281.2 KB None None documents None 1442088992304705189883 /docs/en/application-note/AN10814.pdf 281219 /docs/en/application-note/AN10814.pdf AN10814 documents N N 2016-07-11 Driving stepper motors using NXP I2C-bus GPIO expanders /docs/en/application-note/AN10814.pdf /docs/en/application-note/AN10814.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Oct 24, 2011 645036621402383989 Application Note Y N Driving stepper motors using NXP I2C-bus GPIO expanders 3 1.0 English 1442088353543707144903 PSP 92.3 KB Registration without Disclaimer None documents Extended 1442088353543707144903 /secured/assets/documents/en/application-note/AN256.pdf 92326 /secured/assets/documents/en/application-note/AN256.pdf AN256 documents Y N 2016-07-11 AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus /webapp/Download?colCode=AN256&lang_cd=zh /secured/assets/documents/en/application-note/AN256.pdf Application Note N 645036621402383989 2024-10-21 pdf Y en Mar 23, 2009 645036621402383989 Application Note Y N AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus 4 2.0 English 1442088835091717295604 PSP 301.0 KB None None documents None 1442088835091717295604 /docs/en/application-note/AN469.pdf 300951 /docs/en/application-note/AN469.pdf AN469 documents N N 2011-06-30 AN469 /docs/en/application-note/AN469.pdf /docs/en/application-note/AN469.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Jan 20, 2005 645036621402383989 Application Note Y N AN469 5 2.0 English 1442087835667690821743 PSP 826.2 KB None None documents None 1442087835667690821743 /docs/en/application-note/AN262.pdf 826199 /docs/en/application-note/AN262.pdf AN262 documents N N 2011-07-04 AN262 /docs/en/application-note/AN262.pdf /docs/en/application-note/AN262.pdf Application Note N 645036621402383989 2024-03-13 pdf N en Oct 1, 2004 645036621402383989 Application Note Y N AN262 6 1.0 English 1442087689485731980491 PSP 4.3 MB None None documents None 1442087689485731980491 /docs/en/application-note/AN10216.pdf 4320295 /docs/en/application-note/AN10216.pdf AN10216 documents N N 2016-07-05 AN10216 /docs/en/application-note/AN10216.pdf /docs/en/application-note/AN10216.pdf Application Note N 645036621402383989 2024-10-21 pdf N en Mar 27, 2003 645036621402383989 Application Note Y N AN10216 用户指南 User Guide 1 7 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 手册 Brochure 1 8 1.2 English 1442048914632713595335 PSP 386.1 KB None None documents None 1442048914632713595335 /docs/en/brochure/750_16534.pdf 386099 /docs/en/brochure/750_16534.pdf 750_16534 documents N N 2011-09-12 Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP Octal SMBus registered interface PCA9557 /docs/en/brochure/750_16534.pdf /docs/en/brochure/750_16534.pdf Brochure N 712453003803778552 2022-12-07 pdf N en Aug 1, 2008 712453003803778552 Brochure Y N Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP Octal SMBus registered interface PCA9557 封装信息 Package Information 2 9 1.0 English 1455079748152709896565 PSP 191.3 KB None None documents None 1455079748152709896565 /docs/en/package-information/SOT629-1.pdf 191347 /docs/en/package-information/SOT629-1.pdf SOT629-1 documents N N 2016-02-12 plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT629-1.pdf /docs/en/package-information/SOT629-1.pdf Package Information N 302435339416912908 2024-10-24 pdf N en Dec 8, 2021 302435339416912908 Package Information Y N plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm 10 1.2 English 1455079016613696797754 PSP 298.1 KB None None documents None 1455079016613696797754 /docs/en/package-information/SOT403-1.pdf 298149 /docs/en/package-information/SOT403-1.pdf SOT403-1 documents N N 2016-10-08 plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body /docs/en/package-information/SOT403-1.pdf /docs/en/package-information/SOT403-1.pdf Package Information N 302435339416912908 2024-10-24 pdf N en Dec 10, 2019 302435339416912908 Package Information Y N plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body PDF 包装信息 Packing Information 4 11 1.0 English 1450194741195707957876 PSP 193.2 KB None None documents None 1450194741195707957876 /docs/en/packing/SOT629-1_128.pdf 193234 /docs/en/packing/SOT629-1_128.pdf SOT629-1_128 documents N N 2015-12-14 HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 /docs/en/packing/SOT629-1_128.pdf /docs/en/packing/SOT629-1_128.pdf Packing Information N 145666923842250347 2024-10-18 pdf N en Dec 14, 2015 145666923842250347 Packing Information Y N HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 12 4.0 English 1442131566251699309440 PSP 215.2 KB None None documents None 1442131566251699309440 /docs/en/packing/SOT109-1_118.pdf 215180 /docs/en/packing/SOT109-1_118.pdf SOT109-1_118 documents N N 2013-04-24 SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT109-1_118.pdf /docs/en/packing/SOT109-1_118.pdf Packing Information N 145666923842250347 2024-01-23 pdf N en Apr 24, 2013 145666923842250347 Packing Information Y N SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 13 1.0 English 1442131817357697408743 PSP 264.7 KB None None documents None 1442131817357697408743 /docs/en/packing/SOT629-1_118.pdf 264742 /docs/en/packing/SOT629-1_118.pdf SOT629-1_118 documents N N 2013-04-17 HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT629-1_118.pdf /docs/en/packing/SOT629-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 17, 2013 145666923842250347 Packing Information Y N HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 14 1.0 English 1442131582751712117334 PSP 223.6 KB None None documents None 1442131582751712117334 /docs/en/packing/SOT403-1_118.pdf 223589 /docs/en/packing/SOT403-1_118.pdf SOT403-1_118 documents N N 2013-04-17 TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT403-1_118.pdf /docs/en/packing/SOT403-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 8, 2013 145666923842250347 Packing Information Y N TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 培训资料 Training Presentation 1 15 0.1 English DesignCon 2003 TecForum I2C Bus Overview 1463807226428719028720 PSP 4.4 MB None None documents None 1463807226428719028720 /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf 4351144 /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf DESIGN_CON_2003_TECFORUM_I2C_B_1 documents N N 2016-07-13 DesignCon 2003 TecForum I²C-Bus Overview /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf Training Presentation N 501713016990820713 2025-02-04 pdf N en Jan 27, 2003 501713016990820713 Training Presentation Y N DesignCon 2003 TecForum I²C-Bus Overview 支持信息 Supporting Information 2 16 1.0 English SSOP, TSSOP & VSO FOOTPRINT (WAVE SOLDERING) 1442126381432716559822 PSP 16.6 KB None None documents None 1442126381432716559822 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf 16645 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf SSOP-TSSOP-VSO-WAVE documents N N 2016-10-08 Footprint for wave soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf Supporting Information N 371282830530968666 2024-10-21 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for wave soldering 17 1.0 English Footprint for Wave Soldering 1442126382106720903168 PSP 8.3 KB None None documents None 1442126382106720903168 /docs/en/supporting-information/SO-SOJ-WAVE.pdf 8260 /docs/en/supporting-information/SO-SOJ-WAVE.pdf SO-SOJ-WAVE documents N N 2013-07-15 Footprint for Wave Soldering /docs/en/supporting-information/SO-SOJ-WAVE.pdf /docs/en/supporting-information/SO-SOJ-WAVE.pdf Supporting Information N 371282830530968666 2024-10-21 pdf N en Oct 8, 2009 371282830530968666 Supporting Information Y N Footprint for Wave Soldering false 0 PCA9557 downloads zh-Hans true 1 Y PSP Y Y 包装信息 4 /docs/en/packing/SOT629-1_128.pdf 2015-12-14 1450194741195707957876 PSP 11 Dec 14, 2015 Packing Information None /docs/en/packing/SOT629-1_128.pdf English documents 193234 None 145666923842250347 2024-10-18 N /docs/en/packing/SOT629-1_128.pdf HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 /docs/en/packing/SOT629-1_128.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 193.2 KB SOT629-1_128 N 1450194741195707957876 /docs/en/packing/SOT109-1_118.pdf 2013-04-24 1442131566251699309440 PSP 12 Apr 24, 2013 Packing Information None /docs/en/packing/SOT109-1_118.pdf English documents 215180 None 145666923842250347 2024-01-23 N /docs/en/packing/SOT109-1_118.pdf SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT109-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 4.0 N N SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 215.2 KB SOT109-1_118 N 1442131566251699309440 /docs/en/packing/SOT629-1_118.pdf 2013-04-17 1442131817357697408743 PSP 13 Apr 17, 2013 Packing Information None /docs/en/packing/SOT629-1_118.pdf English documents 264742 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT629-1_118.pdf HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT629-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 264.7 KB SOT629-1_118 N 1442131817357697408743 /docs/en/packing/SOT403-1_118.pdf 2013-04-17 1442131582751712117334 PSP 14 Apr 8, 2013 Packing Information None /docs/en/packing/SOT403-1_118.pdf English documents 223589 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT403-1_118.pdf TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 /docs/en/packing/SOT403-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118 223.6 KB SOT403-1_118 N 1442131582751712117334 培训资料 1 /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf 2016-07-13 1463807226428719028720 PSP 15 Jan 27, 2003 Training Presentation DesignCon 2003 TecForum I2C Bus Overview None /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf English documents 4351144 None 501713016990820713 2025-02-04 N /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf DesignCon 2003 TecForum I²C-Bus Overview /docs/en/supporting-information/design_con_2003_tecforum_i2c_bus_overview.pdf documents 501713016990820713 Training Presentation N en None Y pdf 0.1 N N DesignCon 2003 TecForum I²C-Bus Overview 4.4 MB DESIGN_CON_2003_TECFORUM_I2C_B_1 N 1463807226428719028720 封装信息 2 /docs/en/package-information/SOT629-1.pdf 2016-02-12 1455079748152709896565 PSP 9 Dec 8, 2021 Package Information None /docs/en/package-information/SOT629-1.pdf English documents 191347 None 302435339416912908 2024-10-24 N /docs/en/package-information/SOT629-1.pdf plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm /docs/en/package-information/SOT629-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N N plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm 191.3 KB SOT629-1 N 1455079748152709896565 /docs/en/package-information/SOT403-1.pdf 2016-10-08 1455079016613696797754 PSP 10 Dec 10, 2019 Package Information PDF None /docs/en/package-information/SOT403-1.pdf English documents 298149 None 302435339416912908 2024-10-24 N /docs/en/package-information/SOT403-1.pdf plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body /docs/en/package-information/SOT403-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.2 N N plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body 298.1 KB SOT403-1 N 1455079016613696797754 应用笔记 5 /docs/en/application-note/AN10814.pdf 2016-07-11 1442088992304705189883 PSP 2 Oct 24, 2011 Application Note None /docs/en/application-note/AN10814.pdf English documents 281219 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN10814.pdf Driving stepper motors using NXP I2C-bus GPIO expanders /docs/en/application-note/AN10814.pdf documents 645036621402383989 Application Note N en None Y pdf 2.0 N N Driving stepper motors using NXP I2C-bus GPIO expanders 281.2 KB AN10814 N 1442088992304705189883 /secured/assets/documents/en/application-note/AN256.pdf 2016-07-11 1442088353543707144903 PSP 3 Mar 23, 2009 Application Note Registration without Disclaimer /secured/assets/documents/en/application-note/AN256.pdf English documents 92326 None 645036621402383989 2024-10-21 Y /webapp/Download?colCode=AN256&lang_cd=zh AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus /secured/assets/documents/en/application-note/AN256.pdf documents 645036621402383989 Application Note N en Extended Y pdf 1.0 Y N AN256: PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus 92.3 KB AN256 N 1442088353543707144903 /docs/en/application-note/AN469.pdf 2011-06-30 1442088835091717295604 PSP 4 Jan 20, 2005 Application Note None /docs/en/application-note/AN469.pdf English documents 300951 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN469.pdf AN469 /docs/en/application-note/AN469.pdf documents 645036621402383989 Application Note N en None Y pdf 2.0 N N AN469 301.0 KB AN469 N 1442088835091717295604 /docs/en/application-note/AN262.pdf 2011-07-04 1442087835667690821743 PSP 5 Oct 1, 2004 Application Note None /docs/en/application-note/AN262.pdf English documents 826199 None 645036621402383989 2024-03-13 N /docs/en/application-note/AN262.pdf AN262 /docs/en/application-note/AN262.pdf documents 645036621402383989 Application Note N en None Y pdf 2.0 N N AN262 826.2 KB AN262 N 1442087835667690821743 /docs/en/application-note/AN10216.pdf 2016-07-05 1442087689485731980491 PSP 6 Mar 27, 2003 Application Note None /docs/en/application-note/AN10216.pdf English documents 4320295 None 645036621402383989 2024-10-21 N /docs/en/application-note/AN10216.pdf AN10216 /docs/en/application-note/AN10216.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN10216 4.3 MB AN10216 N 1442087689485731980491 手册 1 /docs/en/brochure/750_16534.pdf 2011-09-12 1442048914632713595335 PSP 8 Aug 1, 2008 Brochure None /docs/en/brochure/750_16534.pdf English documents 386099 None 712453003803778552 2022-12-07 N /docs/en/brochure/750_16534.pdf Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP Octal SMBus registered interface PCA9557 /docs/en/brochure/750_16534.pdf documents 712453003803778552 Brochure N en None Y pdf 1.2 N N Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP Octal SMBus registered interface PCA9557 386.1 KB 750_16534 N 1442048914632713595335 支持信息 2 /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf 2016-10-08 1442126381432716559822 PSP 16 Oct 8, 2009 Supporting Information SSOP, TSSOP & VSO FOOTPRINT (WAVE SOLDERING) None /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf English documents 16645 None 371282830530968666 2024-10-21 N /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf Footprint for wave soldering /docs/en/supporting-information/SSOP-TSSOP-VSO-WAVE.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for wave soldering 16.6 KB SSOP-TSSOP-VSO-WAVE N 1442126381432716559822 /docs/en/supporting-information/SO-SOJ-WAVE.pdf 2013-07-15 1442126382106720903168 PSP 17 Oct 8, 2009 Supporting Information Footprint for Wave Soldering None /docs/en/supporting-information/SO-SOJ-WAVE.pdf English documents 8260 None 371282830530968666 2024-10-21 N /docs/en/supporting-information/SO-SOJ-WAVE.pdf Footprint for Wave Soldering /docs/en/supporting-information/SO-SOJ-WAVE.pdf documents 371282830530968666 Supporting Information N en None Y pdf 1.0 N N Footprint for Wave Soldering 8.3 KB SO-SOJ-WAVE N 1442126382106720903168 数据手册 1 /docs/en/data-sheet/PCA9557.pdf 2013-12-10 1442061142337732570622 PSP 1 Dec 10, 2013 Data Sheet None /docs/en/data-sheet/PCA9557.pdf English documents 289066 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/PCA9557.pdf 8-bit I2C-bus and SMBus I/O port with reset /docs/en/data-sheet/PCA9557.pdf documents 980000996212993340 Data Sheet N en None Y pdf 7.0 N N 8-bit I2C-bus and SMBus I/O port with reset 289.1 KB PCA9557 N 1442061142337732570622 用户指南 1 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 7 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 true Y Products

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