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PCA9542APW/DG,118 PDF预览

PCA9542APW/DG,118

更新时间： 2024-09-17 21:12:27
品牌 Logo 应用领域
恩智浦 - NXP PC
页数 文件大小 规格书
27页 291K
描述
PCA9542A - 2-channel I2C-bus multiplexer and interrupt logic TSSOP 14-Pin

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中文翻译

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PCA9542APW/DG,118 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP,
针数：14Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：7.62
Base Number Matches：1

PCA9542APW/DG,118 数据手册

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PCA9542A  
2-channel I2C-bus multiplexer and interrupt logic  
Rev. 5.1 — 15 July 2015  
Product data sheet  
1. General description  
The PCA9542A is a 1-of-2 bidirectional translating multiplexer, controlled via the I2C-bus.  
The SCL/SDA upstream pair fans out to two SCx/SDx downstream pairs, or channels.  
Only one SCx/SDx channel is selected at a time, determined by the contents of the  
programmable control register. Two interrupt inputs, INT0 and INT1, one for each of the  
SCx/SDx downstream pairs, are provided. One interrupt output, INT, which acts as an  
AND of the two interrupt inputs, is provided.  
A power-on reset function puts the registers in their default state and initializes the I2C-bus  
state machine with no channels selected.  
The pass gates of the multiplexer are constructed such that the VDD pin can be used to  
limit the maximum high voltage which will be passed by the PCA9542A. This allows the  
use of different bus voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V, or 3.3 V parts can  
communicate with 5 V parts without any additional protection. External pull-up resistors  
pull the bus up to the desired voltage level for each channel. All I/O pins are 5 V tolerant.  
2. Features and benefits  
1-of-2 bidirectional translating multiplexer  
I2C-bus interface logic; compatible with SMBus  
2 active LOW interrupt inputs (INT0, INT1)  
Active LOW interrupt output (INT)  
3 address pins allowing up to 8 devices on the I2C-bus  
Channel selection via I2C-bus  
Powers up with all multiplexer channels deselected  
Low Ron switches  
Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses  
No glitch on power-up  
Supports hot insertion  
Low standby current  
Operating power supply voltage range of 2.3 V to 5.5 V  
5 V tolerant inputs  
0 Hz to 400 kHz clock frequency  
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per  
JESD22-C101  
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA  
Packages offered: SO14, TSSOP14  
 
 
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PCA9542APW/DG,118 替代型号

型号 品牌 替代类型 描述 数据表
PCA9542APW,118 NXP

完全替代

 PCA9542A - 2-channel I2C-bus multiplexer and interrupt logic TSSOP 14-Pin

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