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PCA9546A PDF预览

PCA9546A

更新时间： 2024-09-18 04:54:07
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
28页 1060K
描述
4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION

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PCA9546A 数据手册

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PCA9546A  
4-CHANNEL I2C AND SMBus SWITCH  
WITH RESET FUNCTION  
www.ti.com  
SCPS148D–OCTOBER 2005–REVISED OCTOBER 2006  
FEATURES  
•
•
•
•
1-of-4 Bidirectional Translating Switches  
I2C Bus and SMBus Compatible  
Active-Low Reset Input  
•
•
•
Supports Hot Insertion  
Low Standby Current  
Operating Power-Supply Voltage Range of  
2.3 V to 5.5 V  
Three Address Pins, Allowing up to Eight  
Devices on the I2C Bus  
Channel Selection Via I2C Bus  
•
•
•
5.5-V Tolerant Inputs  
•
•
0 to 400-kHz Clock Frequency  
Power Up With All Switch Channels  
Deselected  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78  
•
•
Low RON Switches  
•
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
Allows Voltage-Level Translation Between  
1.8-V, 2.5-V, 3.3-V, and 5-V Buses  
•
No Glitch on Power Up  
– 1000-V Charged-Device Model (C101)  
DESCRIPTION/ORDERING INFORMATION  
The PCA9546A is a quad bidirectional translating switch controlled via the I2C bus. The SCL/SDA upstream pair  
fans out to four downstream pairs, or channels. Any individual SCn/SDn channel or combination of channels can  
be selected, determined by the contents of the programmable control register.  
An active-low reset (RESET) input allows the PCA9546A to recover from a situation in which one of the  
downstream I2C buses is stuck in a low state. Pulling RESET low resets the I2C state machine and causes all  
the channels to be deselected, as does the internal power-on reset function.  
ORDERING INFORMATION  
TA  
PACKAGE(1)  
ORDERABLE PART NUMBER  
PCA9546ARVR  
PCA9546ARGYR  
PCA9546AD  
TOP-SIDE MARKING  
PREVIEW  
QFN – RGV  
QFN – RGY  
Reel of 2500  
Reel of 1000  
Tube of 40  
PD546A  
PCA9546ADG4  
PCA9546ADR  
SOIC – D  
Reel of 2500  
Reel of 250  
PCA9546A  
PCA9546ADRG4  
PCA9546ADT  
PCA9546ADTG4  
PCA9546ADW  
Tube of 40  
Reel of 2000  
Reel of 250  
PCA9546A  
PREVIEW  
–40°C to 85°C  
SOIC – DW  
PCA9546ADWR  
PCA9546ADWT  
PCA9546APW  
Tube of 90  
Reel of 2000  
Reel of 250  
PCA9546APWE4  
PCA9546APWR  
PCA9546APWRE4  
PCA9546APWT  
PCA9546APWTE4  
PCA9546ADGVR  
PCA9546ADGVT  
TSSOP – PW  
TVSOP – DGV  
PD546A  
Reel of 2000  
Reel of 250  
PD546A  
PREVIEW  
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at  
www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005–2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...28

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PCA9546A 替代型号

型号 品牌 替代类型 描述 数据表
TCA9546A TI

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