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PCA9548APW,118 PDF预览

PCA9548APW,118

更新时间： 2024-11-07 15:47:35
品牌 Logo 应用领域
恩智浦 - NXP PC光电二极管接口集成电路
页数 文件大小 规格书
30页 313K
描述
PCA9548A - 8-channel I²C-bus switch with reset TSSOP2 24-Pin

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PCA9548APW,118 技术参数

是否Rohs认证：符合生命周期：Active
零件包装代码：TSSOP2包装说明：TSSOP-24
针数：24Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：0.61
Is Samacsys：N接口集成电路类型：INTERFACE CIRCUIT
JESD-30 代码：R-PDSO-G24JESD-609代码：e4
长度：7.8 mm湿度敏感等级：1
功能数量：1端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压：5.5 V
最小供电电压：2.3 V标称供电电压：2.5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：4.4 mm
Base Number Matches：1

PCA9548APW,118 数据手册

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PCA9548A  
8-channel I2C-bus switch with reset  
Rev. 5.1 — 1 October 2015  
Product data sheet  
1. General description  
The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. The  
SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual  
SCx/SDx channel or combination of channels can be selected, determined by the  
contents of the programmable control register.  
An active LOW reset input allows the PCA9548A to recover from a situation where one of  
the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets  
the I2C-bus state machine and causes all the channels to be deselected as does the  
internal Power-on reset function.  
The pass gates of the switches are constructed such that the VDD pin can be used to limit  
the maximum high voltage which will be passed by the PCA9548A. This allows the use of  
different bus voltages on each pair, so that 1.8 V or 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 6 V tolerant.  
2. Features and benefits  
1-of-8 bidirectional translating switches  
I2C-bus interface logic; compatible with SMBus standards  
Active LOW reset input  
Three address pins allowing up to eight devices on the I2C-bus  
Channel selection via I2C-bus, in any combination  
Power-up with all switch 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  
6 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  
Three packages offered: SO24, TSSOP24, and HVQFN24  
 
 
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PCA9548APW,118 替代型号

型号 品牌 替代类型 描述 数据表
PCA9548AD,118 NXP

完全替代

 PCA9548A - 8-channel I²C-bus switch with rese
PCA9548AD,112 NXP

完全替代

 PCA9548A - 8-channel I²C-bus switch with rese
PCA9548ABS,118 NXP

完全替代

 PCA9548A - 8-channel I²C-bus switch with rese

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