简单型双线总线缓冲器 | NXP 半导体

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简单型双线总线缓冲器

PCA9525DP
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PCA9525是一款单片CMOS集成电路，适用于I²C总线、SMBus、DDC、PMBus及其他基于类似原理的系统应用中的总线缓冲。

该缓冲器可扩展总线负载限制，方法是缓冲SCL和SDA线路，从而使缓冲器两侧实现可允许的最大总线电容。

PCA9525包括一个用于时钟信号的单向缓冲器和一个用于数据信号的双向缓冲器。因此，不支持用于部署时钟延伸的从器件。

在其最基本的实施中，缓冲器允许将延伸的从器件连接至一个（或多个）主器件。在此情况下，所有主器件均置于PCA9525的Sxx_IN侧。

方向引脚(DIR)进一步增强了此功能，因为它允许保留单向时钟信号，从而允许主器件位于缓冲器的两侧。

使能(EN)功能允许隔离总线扇区。可以使系统的各个部分相继上线。这意味着可以轻松控制各种组件的启动、工作速度和负载。

产品详情

特征

  • 简单阻抗隔离缓冲器，适合于双线式总线
  • 4 mA最大静态开漏下拉功能，支持宽范围的总线标准
  • 使用I²C总线（标准模式、快速模式）、SMBus（标准和高功率模式）和PMBus
  • 快速切换时间允许在超过1 MHz频率的条件下操作
  • 启用允许将总线区段断开
  • 输入迟滞提供抗噪性
  • 工作电压范围：2.7 V至5.5 V
  • 极低电源电流
  • 满足大多数常用双线总线应用的快速安装需要

目标应用

  • 电子信息和显示
  • 游戏机/盒
  • 游戏机网络
  • 电视/投影仪/显示器互连(DDC)
  • 电源管理系统
  • 台式和便携式电脑
  • 安全系统

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N true 0 PSPPCA9525DPzh 3 包装信息 Packing Information t935 1 数据手册 Data Sheet t520 1 用户指南 User Guide t792 1 zh 0 false zh zh 数据手册 Data Sheet 1 1 1.0 English 1442062948792713423544 PSP 214.9 KB None None documents None 1442062948792713423544 /docs/en/data-sheet/PCA9525.pdf 214944 /docs/en/data-sheet/PCA9525.pdf PCA9525 documents N N 2011-07-04 Simple 2-wire bus buffer /docs/en/data-sheet/PCA9525.pdf /docs/en/data-sheet/PCA9525.pdf Data Sheet N 980000996212993340 2022-12-07 pdf N en Feb 25, 2011 980000996212993340 Data Sheet Y N Simple 2-wire bus buffer 用户指南 User Guide 1 2 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 包装信息 Packing Information 1 3 1.0 English Packing info for TSSOP8 package 1442131705242712040486 PSP 218.8 KB None None documents None 1442131705242712040486 /docs/en/packing/SOT505-1_118.pdf 218803 /docs/en/packing/SOT505-1_118.pdf SOT505-1_118 documents N N 2013-04-17 TSSOP8; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 /docs/en/packing/SOT505-1_118.pdf /docs/en/packing/SOT505-1_118.pdf Packing Information N 145666923842250347 2024-10-21 pdf N en Apr 15, 2013 145666923842250347 Packing Information Y N TSSOP8; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 false 0 PCA9525DP downloads zh-Hans true 1 Y PSP 包装信息 1 /docs/en/packing/SOT505-1_118.pdf 2013-04-17 1442131705242712040486 PSP 3 Apr 15, 2013 Packing Information Packing info for TSSOP8 package None /docs/en/packing/SOT505-1_118.pdf English documents 218803 None 145666923842250347 2024-10-21 N /docs/en/packing/SOT505-1_118.pdf TSSOP8; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 /docs/en/packing/SOT505-1_118.pdf documents 145666923842250347 Packing Information N en None Y pdf 1.0 N N TSSOP8; Reel pack; SMD, 13"Q1/T1 Standard product orientationOrderable part number ending ,118 or JOrdering code (12NC) ending 118 218.8 KB SOT505-1_118 N 1442131705242712040486 数据手册 1 /docs/en/data-sheet/PCA9525.pdf 2011-07-04 1442062948792713423544 PSP 1 Feb 25, 2011 Data Sheet None /docs/en/data-sheet/PCA9525.pdf English documents 214944 None 980000996212993340 2022-12-07 N /docs/en/data-sheet/PCA9525.pdf Simple 2-wire bus buffer /docs/en/data-sheet/PCA9525.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1.0 N N Simple 2-wire bus buffer 214.9 KB PCA9525 N 1442062948792713423544 用户指南 1 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 2 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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