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| TCA9546A Datasheet, PDF (3/31 Pages) Texas Instruments – Low Voltage 4-Channel I2C and SMBus Switch with Reset Function | |||
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6 Pin Configuration and Functions
D OR PW PACKAGE
(TOP VIEW)
A0 1
A1 2
RESET 3
SD0 4
SC0 5
SD1 6
SC1 7
GND 8
16 VCC
15 SDA
14 SCL
13 A2
12 SC3
11 SD3
10 SC2
9 SD2
TCA9546A
SCPS205A â APRIL 2014 â REVISED FEBRUARY 2015
PIN
NAME
NO.
D, PW
A0
1
A1
2
RESET
3
SD0
4
SC0
5
SD1
6
SC1
7
GND
8
SD2
9
SC2
10
SD3
11
SC3
12
A2
13
SCL
14
SDA
15
VCC
16
Pin Functions
DESCRIPTION
Address input 0. Connect directly to VCC or ground.
Address input 1. Connect directly to VCC or ground.
Active low reset input. Connect to VCC or VDPUM(1) through a pull-up resistor, if not used.
Serial data 0. Connect to VDPU0(1) through a pull-up resistor.
Serial clock 0. Connect to VDPU0(1) through a pull-up resistor.
Serial data 1. Connect to VDPU1(1) through a pull-up resistor.
Serial clock 1. Connect to VDPU1(1) through a pull-up resistor.
Ground
Serial data 2. Connect to VDPU2(1) through a pull-up resistor.
Serial clock 2. Connect to VDPU2(1) through a pull-up resistor.
Serial data 3. Connect to VDPU3(1) through a pull-up resistor.
Serial clock 3. Connect to VDPU3(1) through a pull-up resistor.
Address input 2. Connect directly to VCC or ground.
Serial clock line. Connect to VDPUM(1) through a pull-up resistor.
Serial data line. Connect to VDPUM(1) through a pull-up resistor.
Supply power
(1) VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the master I2C master reference voltage and VDPU0-VDPU3
are the slave channel reference voltages.
Copyright © 2014â2015, Texas Instruments Incorporated
Product Folder Links: TCA9546A
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