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PCA9545APWR from PHILIPS

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PCA9545APWR

Manufacturer: PHILIPS

4-Channel I2C And SMBus Multiplexer With Interrupt Logic And Reset Functions 20-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9545APWR PHILIPS 59 In Stock

Description and Introduction

4-Channel I2C And SMBus Multiplexer With Interrupt Logic And Reset Functions 20-TSSOP -40 to 85 The **PCA9545APWR** from Philips is a versatile **I²C-bus multiplexer** designed to enable communication between multiple I²C buses. This component allows a master device to select one of four downstream I²C channels, facilitating efficient data transfer in complex systems where multiple I²C devices share the same bus.  

Featuring **low on-state resistance**, the PCA9545APWR ensures minimal signal distortion while maintaining compatibility with **I²C Fast-mode Plus (1 MHz)** and **Standard-mode (100 kHz)** operations. Its bidirectional voltage-level translation capability supports mixed-voltage systems, making it suitable for interfacing devices with different logic levels.  

The device includes **interrupt inputs** for each channel, enabling efficient monitoring of connected peripherals. Additionally, its **power-down mode** reduces power consumption when inactive, enhancing energy efficiency in battery-powered applications.  

Housed in a compact **TSSOP-20 package**, the PCA9545APWR is ideal for space-constrained designs, including embedded systems, industrial controls, and consumer electronics. Its robust performance and ease of integration make it a reliable solution for expanding I²C connectivity in multi-bus environments.  

With Philips' proven expertise in semiconductor solutions, the PCA9545APWR delivers consistent performance, ensuring seamless communication across diverse I²C-based applications.

Partnumber Manufacturer Quantity Availability
PCA9545APWR TI 4000 In Stock

Description and Introduction

4-Channel I2C And SMBus Multiplexer With Interrupt Logic And Reset Functions 20-TSSOP -40 to 85 The **PCA9545APWR** from Texas Instruments is a versatile **4-channel I²C multiplexer** designed to manage multiple I²C bus segments efficiently. This component enables communication between a single master device and up to four downstream I²C buses, allowing seamless expansion of peripheral connectivity in complex systems.  

Featuring **bidirectional voltage-level translation**, the PCA9545APWR supports mixed-voltage applications, ensuring compatibility between devices operating at different logic levels. Its low **on-resistance** minimizes signal distortion, preserving data integrity across channels.  

The device includes **interrupt inputs** for each channel, enabling efficient event-driven communication and reducing the need for continuous polling. Additionally, its **software-configurable channel selection** provides flexibility in system design, making it ideal for applications such as industrial control, embedded systems, and multi-sensor environments.  

Housed in a compact **TSSOP-20 package**, the PCA9545APWR is optimized for space-constrained designs while maintaining robust performance. With a wide operating voltage range and low standby current, it is well-suited for power-sensitive applications.  

Engineers value the PCA9545APWR for its **reliability, ease of integration, and enhanced I²C bus management**, making it a practical solution for expanding I²C connectivity in modern electronic systems.

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