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TCA9803 Datasheet(PDF) 3 Page - Texas Instruments

Part # TCA9803
Description  TCA9803 Level-Translating I2C Bus Buffer/Repeater
PDF  38 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TCA9803 Datasheet(HTML) 3 Page - Texas Instruments

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1
VCCA
8
VCCB
2
SCLA
7
SCLB
3
SDAA
6
SDAB
4
GND
5
EN
Not to scale
3
TCA9803
www.ti.com
SCPS267B – MARCH 2017 – REVISED FEBRUARY 2020
Product Folder Links: TCA9803
Submit Documentation Feedback
Copyright © 2017–2020, Texas Instruments Incorporated
5 Device Comparison Table
Part Number
ICS: Current Source Value (Typical)
TCA9800
0.54 mA
TCA9801
1.1 mA
TCA9802
2.2 mA
TCA9803
3.3 mA
6 Pin Configuration and Functions
DGK Package
8-Pin VSSOP
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
NO.
NAME
1
VCCA
Supply
A-side supply voltage (0.8 V to 3.6 V)
2
SCLA
I/O
Serial clock bus, A-side. Connect to VCCA through a pull-up resistor, even if unused
3
SDAA
I/O
Serial data bus, A-side. Connect to VCCA through a pull-up resistor, even if unused
4
GND
—
Ground
5
EN
I
Active-high repeater enable input, referenced to VCCA
6
SDAB
I/O
Serial data bus, B-side. Do NOT connect to VCCB through a pull-up resistor for proper operation. If
unused, leave floating
7
SCLB
I/O
Serial clock bus, B-side. Do NOT connect to VCCB through a pull-up resistor for proper operation. If
unused, leave floating
8
VCCB
Supply
B-side and device supply voltage (1.65 V to 3.6 V)



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