Overview
The TCA9543ADR is a dual-channel I2C/SMBus switch produced by Texas Instruments. It is designed to enable communication between multiple I2C devices on the same bus by providing a switching mechanism. This product is ideal for applications requiring multiple I2C devices with the same address or for expanding the I2C bus in complex systems. The TCA9543ADR is widely used in industrial automation, consumer electronics, and automotive electronics due to its reliability, low power consumption, and compact design.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 1.65 to 5.5 | V | Wide operating range |
| Number of Channels | 2 | Dual-channel switch | |
| I2C Bus Frequency | Up to 400 | kHz | Standard and Fast modes |
| Operating Temperature | -40 to 85 | °C | Industrial-grade |
| Package | SOIC-8 | Compact form factor | |
| Low Standby Current | 1 | µA | Energy-efficient |
Key Features
- Dual-channel I2C/SMBus switch for bus expansion.
- Wide supply voltage range (1.65V to 5.5V) for compatibility with various systems.
- Supports standard (100 kHz) and fast (400 kHz) I2C bus frequencies.
- Low standby current consumption for energy-efficient operation.
- Industrial temperature range (-40°C to 85°C) for robust performance in harsh environments.
Applications
The TCA9543ADR is widely used in various industries due to its versatility and reliability. In industrial automation, it enables communication between multiple sensors and controllers on a single I2C bus. In consumer electronics, it is used in smart home devices and IoT applications to manage multiple peripherals. In automotive electronics, it facilitates communication between different modules, such as infotainment systems and control units. Its compact design and low power consumption make it suitable for space-constrained and battery-powered applications.
Q & A
1. What is the purpose of the TCA9543ADR?
The TCA9543ADR is a dual-channel I2C/SMBus switch designed to enable communication between multiple I2C devices on the same bus.
2. What is the operating voltage range of the TCA9543ADR?
The operating voltage range is 1.65V to 5.5V.
3. How many channels does the TCA9543ADR support?
It supports two channels.
4. What is the maximum I2C bus frequency supported?
It supports up to 400 kHz in Fast mode.
5. What is the package type of the TCA9543ADR?
It comes in an SOIC-8 package.
6. Is the TCA9543ADR suitable for industrial applications?
Yes, it operates in the industrial temperature range of -40°C to 85°C.
7. What is the standby current consumption of the TCA9543ADR?
The standby current is 1 µA, making it energy-efficient.
8. Can the TCA9543ADR be used in automotive electronics?
Yes, it is suitable for automotive applications, including infotainment systems and control units.
9. Does the TCA9543ADR support standard I2C mode?
Yes, it supports both standard (100 kHz) and fast (400 kHz) I2C modes.
10. What are the typical applications of the TCA9543ADR?
Typical applications include industrial automation, consumer electronics, and automotive electronics.
