PCA9548APW,118

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PCA9548APW,118

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IC Translating Switch IC, SMBus

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PartStatus Active
Packaging Tape & Reel (TR)

Übersicht

Description

The PCA9548APW,118 is an I²C bus multiplexer designed to manage multiple I²C devices on a single bus. It allows for the connection of up to eight downstream I²C devices, enabling control of multiple peripherals without address conflicts. It operates with a supply voltage range of 2.3V to 5.5V and supports standard and fast-mode I²C communication (up to 400 kHz).
This device features an active low enable pin, which facilitates the selection of specific channels, thus isolating devices on the bus. The PCA9548APW,118 is particularly useful in applications where multiple I²C devices share the same address or when long-distance communication is needed, as it helps manage signal integrity.
Key features include low power consumption, high-speed switching, and the ability to cascade multiple multiplexers for larger systems. Its small package size and robust performance make it suitable for various applications, including sensors, displays, and communication interfaces in embedded systems.

Equivalent

The PCA9548APW,118 is an I2C multiplexer. Equivalent products include:
1. TCA9548A - Texas Instruments
2. PCA9548A - NXP Semiconductors
3. PCA9546A - NXP Semiconductors (for fewer channels)
Ensure to check specific features such as voltage levels, number of channels, and I2C compatibility when selecting an equivalent.

Features

The PCA9548APW,118 is an I2C bus multiplexer with eight channels, allowing multiple I2C buses to be connected and managed through a single set of pins. Its key features include:
1. I2C Multiplexing: It enables the connection of up to eight I2C devices on a single bus, facilitating communication with multiple I2C slaves while avoiding address conflicts.
2. Single I2C Address: The device has a fixed I2C address, simplifying communication setup.
3. Channel Selection: It allows individual channel selection through the I2C interface, enabling dynamic configuration of connected devices.
4. Wide Voltage Range: Operating voltage ranges from 2.3V to 5.5V, making it suitable for various applications.
5. High Speed: Supports standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz) I2C communication.
6. Low Power Consumption: Designed for energy-efficient operation.
7. SDA and SCL Buffers: Isolates and buffers the I2C signals, improving performance and reliability.
These features make the PCA9548APW,118 ideal for applications requiring multiple I2C devices.

Pinout

The PCA9548APW,118 is an I2C multiplexer with a total of 8 pins. The pin configuration and their functions are as follows:
1. VDD (Pin 1): Power supply voltage (typically 2.3V to 5.5V).
2. GND (Pin 2): Ground reference.
3. SDA (Pin 3): Serial Data Line for I2C communication.
4. SCL (Pin 4): Serial Clock Line for I2C communication.
5. A0 (Pin 5): Address select input.
6. A1 (Pin 6): Address select input.
7. A2 (Pin 7): Address select input.
8. P0 (Pin 8): Multiplexed output enabling for I2C channels.
The PCA9548APW,118 allows up to 8 different I2C devices to be connected and accessed through a single master. It can select one or multiple channels for communication, enabling efficient management of multiple I2C devices on the same bus.

Manufacturer

The PCA9548APW,118 is manufactured by NXP Semiconductors, a global semiconductor company. NXP specializes in the design and production of a wide range of semiconductor solutions, including microcontrollers, processors, and interfaces for various applications such as automotive, industrial, IoT (Internet of Things), and consumer electronics. The company was formed in 2006 as part of the semiconductor division of Philips and has since grown to become a key player in the semiconductor industry. NXP focuses on innovation and technology advancement, providing high-performance components that enable smarter, more connected devices.

Application

The PCA9548APW,118 is an I2C multiplexer, primarily used in applications requiring multiple I2C devices on a single bus. Its application areas include:
1. Sensor Networks: Connecting multiple sensors to a microcontroller without address conflicts.
2. Embedded Systems: Facilitating communication between a single master and multiple slave devices.
3. Data Acquisition: Managing multiple signal sources in data collection systems.
4. Consumer Electronics: Enabling control of various peripherals in devices like TVs and audio systems.
5. Industrial Automation: Connecting diverse industrial sensors and actuators to a central controller.
This device helps expand I2C capabilities, improving system design flexibility.

Package

The PCA9548APW,118 is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. This package type is known for its compact size and is suitable for surface-mount applications.