ZHCSNJ4B
September 2007 – March 2021
PCA9543A
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
Switching Characteristics
6.8
Interrupt and Reset Timing Requirements
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.4
Device Functional Modes
8.4.1
RESET Input
8.4.2
Power-On Reset
8.5
Programming
8.5.1
I2C Interface
8.6
Control Register
8.6.1
Device Address
8.6.2
Control Register Description
8.6.3
Control Register Definition
8.6.4
Interrupt Handling
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PW|14
MPDS360
D|14
MPDS177G
散热焊盘机械数据 (封装 | 引脚)
PW|14
QFND305D
D|14
QFND304D
订购信息
zhcsnj4b_oa
zhcsnj4b_pm
1
特性
2 选 1 双向转换开关
与 I
2
C 总线和系统管理总线 (SMBus) 兼容
两个低电平有效中断输入
低电平有效中断输出
低电平有效复位输入
两个地址引脚，允许在 I2C 总线上使用多达四个 PCA9543A 器件
以任意组合通过 I
2
C 总线实现通道选择
加电时所有开关通道取消选定
低 R
ON
开关
支持 1.8V、2.5V、3.3V 和 5V 总线间的电压电平转换
加电时无干扰
支持热插入
低待机电流
工作电源电压范围为 2.3V 至 5.5V
5.5V 耐压输入
0 至 400kHz 时钟频率
锁断性能超过 100mA 符合 JESD78 规范要求
ESD 保护性能超过 JESD 22 规范要求
2000V 人体放电模型 (A114-A)
1000V 带电器件模型 (C101)