2
TCA9543A
ZHCSC97B –MARCH 2014–REVISED NOVEMBER 2019
www.ti.com.cn
Copyright © 2014–2019, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 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.................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 I
2
C Interface Timing Requirements........................... 6
6.7 Switching Characteristics.......................................... 7
6.8 Interrupt and Reset Timing Requirements................ 7
6.9 Typical Characteristics.............................................. 8
7 Parameter Measurement Information .................. 9
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 12
8.5 Programming........................................................... 12
8.6 Register Maps......................................................... 14
9 Application and Implementation ........................ 17
9.1 Application Information............................................ 17
9.2 Typical Application .................................................. 17
10 Power Supply Recommendations ..................... 20
10.1 Power-On Reset Requirements ........................... 20
11 Layout................................................................... 22
11.1 Layout Guidelines ................................................. 22
11.2 Layout Example .................................................... 22
12 器器件件和和文文档档支支持持 ..................................................... 23
12.1 接收文档更新通知 ................................................. 23
12.2 支持资源................................................................ 23
12.3 商标 ....................................................................... 23
12.4 静电放电警告......................................................... 23
12.5 Glossary................................................................ 23
13 机机械械、、封封装装和和可可订订购购信信息息....................................... 23
4 修修订订历历史史记记录录
Changes from Revision A (February 2015) to Revision B Page
• Changed the Pin Configuration images appearance.............................................................................................................. 3
• Changed V
CC
= 3.3 V to V
CC
= 2.5 V in Figure 16 .............................................................................................................. 17
Changes from Original (September 2012) to Revision A Page
• 已添加 添加了
引脚配置和功能
部分、ESD
额定值
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
• 已添加 向数据表添加了 D 封装............................................................................................................................................... 1
• Changed Handling Ratings table to ESD Ratings.................................................................................................................. 4
• Added D package to the Thermal Information table. ............................................................................................................. 4
