Table of Contents
1 特性................................................................................... 1
2 应用................................................................................... 1
3 说明................................................................................... 1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings........................................ 4
6.2 ESD Ratings............................................................... 4
6.3 Recommended Operating Conditions.........................4
6.4 Thermal Information....................................................5
6.5 Electrical Characteristics.............................................5
6.6 I
2
C Interface Timing Requirements.............................6
6.7 RESET Timing Requirements..................................... 7
6.8 Switching Characteristics............................................7
6.9 Typical Characteristics................................................8
7 Parameter Measurement Information.......................... 11
8 Detailed Description......................................................15
8.1 Overview................................................................... 15
8.2 Functional Block Diagram......................................... 16
8.3 Feature Description...................................................17
8.4 Device Functional Modes..........................................18
8.5 Programming............................................................ 18
8.6 Register Maps...........................................................20
9 Power Supply Recommendations................................29
9.1 Power-On Reset Requirements................................ 29
10 Layout...........................................................................31
10.1 Layout Guidelines................................................... 31
10.2 Layout Example...................................................... 32
11 Device and Documentation Support..........................33
11.1 Documentation Support.......................................... 33
11.2 接收文档更新通知................................................... 33
11.3 支持资源..................................................................33
11.4 Trademarks............................................................. 33
11.5 Electrostatic Discharge Caution.............................. 33
11.6 术语表..................................................................... 33
4 Revision History
Changes from Revision C (December 2018) to Revision D (October 2021) Page
• 添加了特性：
提供功能安全
................................................................................................................................1
• 将提到的旧术语实例全局更改为控制器和目标。................................................................................................ 1
• Corrected the pin number for pins A0, SCL, SDA, and VCC in the TCA9539-Q1 Layout ............................... 32
Changes from Revision B (April 2016) to Revision C (December 2018) Page
• Changed the appearance of the PW pinout image ............................................................................................3
• Removed (5 V) from the V
CC
label in 图 9-1 ....................................................................................................25
Changes from Revision A (September 2015) to Revision B (April 2016) Page
• 将器件状态从
产品预发布
更改为
量产数据
......................................................................................................... 1
Changes from Revision * (January 2014) to Revision A (September 2015) Page
• 添加了“ESD 等级”表、“特性说明”部分、“器件功能模式”、“应用和实施”部分、“电源相关建议”部
分、“布局”部分、“器件和文档支持”部分以及“机械、封装和可订购信息”部分.......................................1
TCA9539-Q1
ZHCSEZ2D – JANUARY 2014 – REVISED OCTOBER 2021
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