Menu
Product
Email
PDF
Order now
TCA9548A Low-Voltage 8-Channel I2C Switch with Reset
SCPS207H
May 2012 – September 2024
TCA9548A
PRODUCTION DATA
CONTENTS
SEARCH
TCA9548A Low-Voltage 8-Channel I2C Switch with Reset
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
I2C Interface Timing Requirements
5.7
Reset Timing Requirements
5.8
Switching Characteristics
5.9
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.4
Device Functional Modes
7.4.1
RESET Input
7.4.2
Power-On Reset
7.5
Programming
7.5.1
I2C Interface
7.5.2
Device Address
7.5.3
Bus Transactions
7.5.3.1
Writes
7.5.3.2
Reads
7.5.4
Control Register
7.5.5
RESET Input
7.5.6
Power-On Reset
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.3.1
Power-On Reset Requirements
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DGS|24
MPSS138
PW|24
MPDS363A
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND024AD
Orderable Information
scps207h_oa
scps207h_pm
search
No matches found.
Full reading width
Full reading width
Comfortable reading width
Expanded reading width
Card for each section
Card with all content
Data Sheet
TCA9548A Low-Voltage 8-Channel I
2
C Switch with Reset
1
Features
1-to-8 Bidirectional translating switches
I
2
C Bus and SMBus compatible
Active-low reset input
Three address pins, allowing up to eight TCA9548A devices on the I
2
C bus
Channel selection through an I
2
C Bus, in any combination
Power up with all switch channels deselected
Low R
ON
switches
Allows voltage-level translation between 1.8V, 2.5V, 3.3V, and 5V buses
No glitch on power up
Supports hot insertion
Low standby current
Operating power-supply voltage range of 1.65V to 5.5V
5-V Tolerant inputs
0 to 400kHz Clock frequency
Latch-up performance exceeds 100mA Per JESD 78, class II
ESD Protection exceeds JESD 22
±2000V Human-body model (A114-A)
200V Machine model (A115-A)
±1000V Charged-device model (C101)
2
Applications
Servers
Routers (telecom switching equipment)
Factory Automation
Products with I
2
C target address conflicts (such as multiple, identical temperature sensors)