IC Phoenix logo

Home ›  P  › P13 > PCA9545A

PCA9545A from PH

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

15.625ms

PCA9545A

Manufacturer: PH

4-channel I²C switch with interrupt logic and reset

Partnumber Manufacturer Quantity Availability
PCA9545A PH 10 In Stock

Description and Introduction

4-channel I²C switch with interrupt logic and reset The **PCA9545A** is a versatile **I²C-bus multiplexer** designed to enable communication between multiple I²C devices using a single bus. It features four bidirectional channels, allowing a master device to select one of four downstream I²C buses. This functionality is particularly useful in systems where multiple I²C-compatible peripherals share the same address, preventing conflicts and simplifying bus management.  

Operating with a supply voltage range of **2.3V to 5.5V**, the PCA9545A is compatible with both **3.3V and 5V** logic levels, making it suitable for a wide range of applications. It supports **hot insertion**, ensuring stable operation when devices are connected or disconnected during operation. Additionally, the device includes **interrupt inputs** for each channel, enabling efficient event-driven communication.  

The PCA9545A is commonly used in embedded systems, industrial automation, and consumer electronics where multiple I²C sensors, EEPROMs, or other peripherals must coexist on a single bus. Its low standby current consumption and compact package options further enhance its appeal for power-sensitive and space-constrained designs.  

With robust performance and ease of integration, the PCA9545A provides an efficient solution for expanding I²C bus connectivity while maintaining signal integrity and system reliability.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips