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TCA9548APWR

Name: TCA9548APWR
Rating: 4.7 (12 reviews)

IC BUS SWITCH 1 X 8:1 24TSSOP

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Mfr。パート #TCA9548APWR
パッケージ TSSOP (PW)-24
データシート
在庫中3050

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仕様

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)

概要

Description

The TCA9548APWR is a versatile I2C multiplexer designed for applications requiring multiple I2C devices on a single bus. It allows you to connect up to eight different I2C channels, enabling the communication with multiple peripherals that may share the same address, thereby avoiding conflicts.
The device operates with a supply voltage range of 1.65V to 5.5V, making it compatible with both 3.3V and 5V systems. It features two control pins (A0, A1, A2) that select which of the eight channels to activate, allowing for dynamic switching between different devices.
The TCA9548APWR supports fast-mode I2C communication, with speeds of up to 1 MHz, and has an integrated reset function for seamless operation. It's commonly used in various applications, including sensor networks, display systems, and any scenario where multiple I2C devices need to be managed without address conflicts. Its compact packaging (16-pin TSSOP) makes it suitable for space-constrained designs.

Features

The TCA9548APWR is an I2C multiplexer designed to expand the number of I2C devices that can be connected to a microcontroller or microprocessor. Key features include:
1. Channels: It supports 8 channels, allowing up to 8 I2C buses to be selected.
2. Voltage Range: Operates between 1.65V and 5.5V, making it compatible with a wide range of systems.
3. I2C Addressing: Features a fixed I2C address, with the ability to select channels using I2C commands.
4. Low Power Consumption: Consumes minimal power during operation, enhancing battery life in portable applications.
5. High-Speed Operation: Supports fast-mode (up to 400 kHz) and standard-mode (up to 100 kHz) I2C communication.
6. Error Handling: Provides fault isolation, allowing for one faulty device not to affect the others.
7. Small Package: Available in a compact TSSOP package, suitable for space-constrained designs.
Overall, the TCA9548APWR is ideal for applications requiring multiple I2C devices without using additional GPIO pins.

Package

The TCA9548APWR is packaged in a TSSOP-24 (Thin Shrink Small Outline Package) form factor. This surface-mount package is designed for space efficiency and typically measures 4.4 mm x 6.5 mm.

Pinout

The TCA9548APWR is an I²C multiplexer with 16 pins. Its primary function is to allow multiple I²C devices with the same address to connect to a single I²C bus by selectively enabling one of the eight channels at a time.
Pin Count: 16 pins
Key Functions:
- VCC (Pin 1): Power supply input (2.3V to 5.5V).
- GND (Pin 4): Ground.
- SDA (Pin 2): Serial Data Line for I²C.
- SCL (Pin 3): Serial Clock Line for I²C.
- A0, A1, A2 (Pins 5, 6, 7): Address pins to set the I²C address.
- CH0-CH7 (Pins 8-15): Multiplexer channel control pins for connecting to different devices.
- RESET (Pin 16): Reset pin for the device.
This device effectively increases the number of I²C devices that can be controlled from a single microcontroller.

Manufacturer

The TCA9548APWR is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930, Texas Instruments specializes in designing and manufacturing a wide range of analog and digital semiconductor devices, including microcontrollers, processors, and interface solutions. The company is well-known for its innovations in analog technology and its extensive portfolio of integrated circuits (ICs) that serve various applications, such as automotive, industrial, consumer electronics, and communications. Texas Instruments is recognized for its commitment to quality and reliability in electronic components, making it a key player in the semiconductor industry.

Application

The TCA9548APWR is an I2C multiplexer used in various application areas, including expanding I2C bus connections, interfacing multiple I2C devices with the same address, sensor data acquisition, and managing communication between multiple microcontrollers. It's commonly utilized in embedded systems, robotics, consumer electronics, and industrial automation to enhance system flexibility and scalability while minimizing wiring complexity.

Equivalent

Equivalent products to the TCA9548APWR include the PCA9548A, TCA9548A, and similar I2C multiplexer chips from various manufacturers like NXP and Texas Instruments. These chips also feature multiple channels for I2C bus expansion and address selection but may vary in specifications such as voltage range and channel count. Always check datasheets for compatibility and specific requirements.