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PCA9548APWR

Name: PCA9548APWR
Rating: 4.7 (12 reviews)

IC INTERFACE SPECIALIZED 24TSSOP

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包 TSSOP24
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規格

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus	Not For New Designs
Applications	Translating Switch
Interface	I²C, SMBus
Voltage-Supply	2.3V ~ 5.5V
Package/Case	24-TSSOP (0.173, 4.40mm Width)
SupplierDevicePackage	24-TSSOP

概述

Description

The PCA9548APWR is an I²C bus multiplexer designed to facilitate communication between multiple I²C devices and a single master controller. It can be used to manage up to eight independent I²C buses, allowing for the connection of multiple peripherals without address conflicts. By selecting specific buses, the PCA9548APWR enables the master to communicate with desired devices while isolating others.
Features include:
- Eight channels for I²C control
- 2.5V to 5.5V supply voltage range
- Fast-mode and fast-mode plus compatible
- Active-low interrupt output for bus conflicts
- Low power consumption
The multiplexer is useful in applications where many I²C devices are connected, such as in sensor networks, display interfaces, or communication modules, allowing efficient management of complex I²C architectures. Its compact package and versatility make it an important component in embedded systems and IoT devices.

Features

The PCA9548APWR is an I2C bus multiplexer that enables communication with multiple I2C devices on the same bus, allowing for address conflict resolution. Key features include:
1. Multi-Channel Multiplexing: It can select one of eight downstream I2C channels.
2. I2C Compatibility: Supports standard I2C speeds of 100 kHz and fast mode up to 400 kHz.
3. Single Master Interface: Operates with a single master device, simplifying the connection of multiple slaves.
4. Data Integrity: Offers low on-resistance switches to maintain signal integrity.
5. Power Management: Low static power consumption, making it energy-efficient.
6. Active Low Select Inputs: Channels can be selected via active low control inputs.
7. Open-Drain Outputs: Supports I2C bus pull-up resistors.
8. Wide Supply Voltage Range: Operable from 2.3V to 5.5V.
9. Temperature Range: Suitable for operation from -40°C to +85°C.
These features make the PCA9548APWR ideal for applications requiring multiple I2C devices on a single bus without address conflicts.

Package

The PCA9548APWR is packaged in a TSSOP-24 (Thin Shrink Small Outline Package) format. This package type is designed for surface mounting and features 24 pins.

Pinout

The PCA9548APWR is an I²C bus multiplexer with 8 selectable downstream channels. It has a total of 16 pins.
Pin Functions:
1. VCC (Pin 1): Power supply.
2. GND (Pin 8): Ground.
3. SDA (Pin 2): Data line for I²C communication.
4. SCL (Pin 3): Clock line for I²C communication.
5. A0-A2 (Pins 4-6): Address selection pins for I²C addressing.
6. RESET (Pin 7): Active-low reset pin.
7. C0-C7 (Pins 9-16): Outputs to the downstream channels (Channel 0 to Channel 7).
This device allows multiple I²C devices to share the same bus while reducing the load on the master controller by selectively enabling and disabling channels.

Manufacturer

The PCA9548APWR is manufactured by NXP Semiconductors, a global semiconductor company headquartered in Eindhoven, Netherlands. NXP specializes in the design and production of a wide range of semiconductor products, including microcontrollers, processors, and various types of integrated circuits. The company focuses on numerous sectors such as automotive, industrial, and IoT solutions, providing innovative technologies that enable smarter and more connected devices. NXP is recognized for its expertise in secure connectivity and processing, catering to the growing demands of the electronics market.

Application

The PCA9548APWR is an I2C bus multiplexer, used in digital communication systems to enable multiple I2C devices to share a single bus. Its application areas include connecting multiple sensors, managing different I2C devices in embedded systems, facilitating communication in automotive electronics, and optimizing I2C bus management in consumer electronics. It helps in reducing bus conflicts and allows for expanded device addressing in complex systems.

Equivalent

Equivalent products to the PCA9548APWR chip include the TCA9548A, PCA9548, and the TCA9548APW. These chips serve similar purposes in I2C bus multiplexing, allowing multiple devices to communicate over a single bus. Always verify specifications to ensure compatibility for your specific application.