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PCA9546ADGVRG4 Datasheet(PDF) 1 Page - Texas Instruments

Part # PCA9546ADGVRG4
Description  4-CHANNEL I2C AND SMBus SWITCH WITH RESET FUNCTION
Download  27 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCA9546ADGVRG4 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION/ORDERING INFORMATION
PCA9546A
4-CHANNEL I2C AND SMBus SWITCH
WITH RESET FUNCTION
SCPS148E – OCTOBER 2005 – REVISED JANUARY 2008
www.ti.com
• 1-of-4 Bidirectional Translating Switches
• Low Standby Current
• I2C Bus and SMBus Compatible
• Operating Power-Supply Voltage Range of
2.3 V to 5.5 V
• Active-Low Reset Input
• 5.5-V Tolerant Inputs
• Three Address Pins, Allowing up to Eight
Devices on the I2C Bus
• 0 to 400-kHz Clock Frequency
• Channel Selection Via I2C Bus
• Latch-Up Performance Exceeds 100 mA Per
JESD 78
• Power Up With All Switch Channels
Deselected
• ESD Protection Exceeds JESD 22
• Low R
ON Switches
2000-V Human-Body Model (A114-A)
• Allows Voltage-Level Translation Between
200-V Machine Model (A115-A)
1.8-V, 2.5-V, 3.3-V, and 5-V Buses
1000-V Charged-Device Model (C101)
• No Glitch on Power Up
• Supports Hot Insertion
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)(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGV
Reel of 2500
PCA9546ARGVR
PD546A
QFN – RGY
Reel of 1000
PCA9546ARGYR
PD546A
PCA9546AD
Tube of 40
PCA9546ADG4
PCA9546ADR
SOIC – D
Reel of 2500
PCA9546A
PCA9546ADRG4
PCA9546ADT
Reel of 250
PCA9546ADTG4
Tube of 40
PCA9546ADW
PCA9546A
–40
°C to 85°C
SOIC – DW
Reel of 2000
PCA9546ADWR
Reel of 250
PCA9546ADWT
PREVIEW
PCA9546APW
Tube of 90
PCA9546APWE4
PCA9546APWR
TSSOP – PW
Reel of 2000
PD546A
PCA9546APWRE4
PCA9546APWT
Reel of 250
PCA9546APWTE4
Reel of 2000
PCA9546ADGVR
PD546A
TVSOP – DGV
Reel of 250
PCA9546ADGVT
PREVIEW
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
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 © 2005–2008, 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.


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