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PCA9548ABS,118

Name: PCA9548ABS,118
Rating: 4.7 (12 reviews)

IC INTFACE SPECIALIZED 24HVQFN

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資料表 PCA9548ABS,118 DataSheet
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規格

Part Status	Active
Applications	Translating Switch
Interface	I2C, SMBus
Voltage - Supply	2.3V ~ 3.6V, 4.5V ~ 5.5V
Package / Case	24-VFQFN Exposed Pad
Supplier Device Package	24-HVQFN (4x4)
Mounting Type	Surface Mount
Base Product Number	PCA9548

概述

Description

The PCA9548ABS,118 is an I2C multiplexer designed to expand I2C bus capabilities. It allows a single I2C master to communicate with multiple I2C devices, each with a unique address, effectively increasing the number of devices that can be connected to a single bus.
Key features of the PCA9548 include:
- Eight Channels: It can route signals from one of its eight selectable channels to the I2C master.
- Addressing: The device has a fixed I2C address, allowing it to be easily integrated into existing I2C networks.
- Interruption Handling: It supports interrupt signaling, which enables efficient communication by notifying the master of changes in the state of connected devices.
- Voltage Range: Operates within a supply voltage range of 2.3V to 5.5V, making it versatile for various applications.
This multiplexer is commonly used in applications where a large number of sensors or peripherals need to be managed without requiring unique addresses for each device, thus simplifying I2C bus management.

Features

The PCA9548A is an I2C bus multiplexer designed to expand the number of I2C devices that can be connected to a microcontroller. It enables the connection of up to eight I2C buses to a single I2C master, allowing multiple devices with the same address to operate on the same bus.
Key features include:
1. 8 I2C Channel Multiplexing: Connects one master to eight slave devices.
2. Select Lines: Uses 3 select lines (S0, S1, S2) to control which channel is active.
3. I2C Compatibility: Operates at standard (100 kHz) and fast mode (400 kHz).
4. Low Power Consumption: Designed for efficient power use.
5. Voltage Levels: Compatible with a wide range of supply voltages (1.8V to 5.5V).
6. Interrupt Output: Provides an interrupt signal for bus events.
7. Multiple Devices: Can be cascaded to control more than eight I2C devices.
The PCA9548A is ideal for applications needing multiple I2C devices with the same address or where I2C bus capacitance needs to be managed.

Package

The PCA9548ABS,118 is available in a TSSOP-24 (Thin Shrink Small Outline Package) package type.

Pinout

The PCA9548ABS,118 is an I2C bus multiplexer with a total of 16 pins. Its primary function is to allow multiple I2C buses to be connected to a single master device while enabling selective communication with any of the attached slave devices.
### Pin Count and Functions:
1. VDD (Pin 1): Power supply.
2. GND (Pin 2): Ground.
3. SDA (Pin 3): Serial Data Line (I2C).
4. SCL (Pin 4): Serial Clock Line (I2C).
5. A0 - A3 (Pins 5-8): Address selection pins for I2C address configuration.
6. P0 - P7 (Pins 9-16): I2C channel outputs for connecting to slave devices.
The PCA9548A can isolate and switch between up to eight I2C buses, allowing for flexible device management and reduced signal interference. Each channel can be individually enabled or disabled through the I2C interface, enhancing system design efficiency.

Manufacturer

The PCA9548ABS,118 is manufactured by NXP Semiconductors, a global semiconductor company known for its automotive, security, and IoT solutions. NXP specializes in designing and producing a wide range of semiconductor products, including microcontrollers, processors, and connectivity solutions for various applications such as automotive, industrial, and consumer electronics. The PCA9548A is an I2C-bus multiplexer that allows multiple I2C devices to communicate on a single bus, enhancing system design flexibility and efficiency. NXP is recognized for its innovation and commitment to enabling secure connectivity in various technology sectors.

Application

The PCA9548ABS,118 is an I2C multiplexer commonly used in applications requiring multiple I2C device connections. Key areas include sensor networks, display interfaces, and communication systems where multiple I2C devices need to communicate over a single bus. It is beneficial in embedded systems, robotics, and consumer electronics, enabling efficient management of multiple I2C devices without address conflicts.

Equivalent

The PCA9548ABS,118 is an I2C multiplexer. Equivalent products include:
1. TCA9548A
2. PCA9548AD
3. PCA9548APW
These alternatives may have similar functionalities and specifications, but it's essential to check the datasheets for compatibility regarding supply voltage, I2C address, and multiplexing capabilities.