TCA9548APWR

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TCA9548APWR

+Nomenclature

IC BUS SWITCH 1 X 8:1 24TSSOP

  • FabricantTexas Instruments

  • Pièce fabricant #TCA9548APWR

  • Package TSSOP (PW)-24

  • En stock7353

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Spécifications

Attribut Valeur
Package Tape & Reel (TR),Cut Tape (CT)
Series TCA
ProductStatus Active
Type Bus Switch
Circuit 1 x 8:1
IndependentCircuits 1
VoltageSupplySource Single Supply
Voltage-Supply 1.65V ~ 5.5V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 24-TSSOP (0.173, 4.40mm Width)

Présentation

Description

The TCA9548APWR is an I2C switch with an 8-channel multiplexer, manufactured by Texas Instruments. It enables multiple I2C devices with the same address to be connected to a single I2C bus, significantly expanding the I2C communication capability in complex systems. The device features one upstream SDA/SCL pair and eight downstream pairs, allowing users to select which downstream channel to enable by writing to control registers.
Operating in a voltage range from 1.65V to 5.5V, the TCA9548APWR supports standard-mode (up to 100 kbit/s), fast-mode (up to 400 kbit/s), and fast-mode plus (up to 1 Mbit/s) I2C speeds. It is especially useful in systems where multiple identical devices need to be managed independently, as it prevents address conflicts.
Its low power consumption and high ESD protection make it suitable for various applications, including consumer electronics, industrial systems, and automotive applications. The device is available in a 24-pin TSSOP package, making it compact and easy to integrate into PCB designs.

Equivalent

The TCA9548APWR is an I2C switch/multiplexer. Equivalent products include the PCA9548A from NXP, which serves a similar function. Another alternative is the MAX7367 from Maxim Integrated. These devices allow multiple I2C devices to be connected to a single I2C bus, enabling channel selection for communication. Ensure compatibility in terms of voltage, package type, and temperature range when selecting an equivalent.

Features

The TCA9548APWR is an I²C bus switch with an 8-channel multiplexer function. Key features include:
1. I²C Interface: It operates on an I²C bus, allowing multiple devices to communicate over the same data lines without interference.

2. 8-Channel Multiplexer: It provides eight separate I²C channels, enabling one controller to control up to eight I²C buses.
3. Voltage Range: It supports a wide supply voltage range from 1.65V to 5.5V, suitable for various systems.
4. Channel Selection: Channels can be individually enabled or disabled through I²C commands, providing flexibility in bus management.
5. Low Standby Current: The device is designed for low power consumption, featuring a low standby current.
6. Addressing: Multiple TCA9548A devices can coexist on the same I²C bus with programmable slave addresses.
7. ESD Protection: The device includes high ESD protection, enhancing its durability and reliability.
8. Package: Available in a TSSOP package, facilitating easy incorporation into designs.
These features make the TCA9548APWR ideal for applications requiring I²C bus expansion and efficient channel management.

Pinout

The TCA9548APWR is an I2C bus switch with a pin count of 24. It is used to expand the I2C bus capacity by allowing one master device to communicate with multiple slave devices through 8 configurable downstream channels. Each channel can be individually enabled or disabled, allowing for flexible communication pathways. This feature is particularly useful in applications where multiple I2C devices need to be managed or isolated without interference.
The device operates on a supply voltage ranging from 1.65V to 5.5V and supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) I2C bus speeds. The TCA9548APWR also includes features like low standby current and a power-on reset to ensure reliable operation. It is packaged in a TSSOP-24, which is a thin-shrink small outline package with 24 pins, and is suitable for applications like server management, industrial control, and consumer electronics where multiple I2C devices need to be controlled efficiently.

Manufacturer

The TCA9548APWR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. TI is well-known for its focus on developing analog chips and embedded processors, which are used in a wide range of applications including consumer electronics, automotive, industrial equipment, and telecommunications. The company is renowned for its innovation in the semiconductor industry and provides solutions that enhance the performance and efficiency of electronic products.

Application

The TCA9548APWR is a 1-to-8 I2C multiplexer used in applications requiring multiple I2C devices to communicate with a single I2C master. Key application areas include:
1. Consumer Electronics: Managing I2C signals in complex devices like TVs and gaming consoles.
2. Industrial Automation: Facilitating communication between different sensors and controllers.
3. Automotive Systems: Enabling multiple sensors and subsystems in automotive electronics.
4. IoT Devices: Connecting various sensors and actuators in smart home and industrial IoT setups.
5. Test and Measurement Equipment: Allowing multiple test points with a single I2C interface.
6. Embedded Systems: Expanding I2C capabilities in microcontroller-based projects.
The device simplifies complex designs by providing reliable communication paths.

Package

The TCA9548APWR is an I2C multiplexer from Texas Instruments, housed in a TSSOP-24 (Thin Shrink Small Outline Package) type. This package features 24 pins and is used to facilitate the control of multiple I2C buses, allowing for expansion and improved communication flexibility in electronic designs.

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