PCA9544ADManufacturer: PHILIPS, NXP PCA9544A; 4-channel I²C multiplexer with interrupt logic |
|||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9544AD | PHILIPS, NXP | 43 | In Stock |
Description and Introduction
PCA9544A; 4-channel I²C multiplexer with interrupt logic The **PCA9544AD** from Philips is a versatile **I²C bus multiplexer** designed to enable communication between multiple I²C-compatible devices over a single bus. This component is particularly useful in systems where multiple I²C slave devices share the same address, or when isolation between different segments of the bus is required.  
Featuring **four bidirectional channels**, the PCA9544AD allows a master device to select one of four downstream I²C buses, ensuring seamless data transfer without address conflicts. The device operates with a **supply voltage range of 2.3V to 5.5V**, making it compatible with a wide variety of low-voltage and standard logic systems.   Key functionalities include **interrupt handling**, which notifies the master controller when a downstream device requires attention, and **low standby current consumption**, enhancing energy efficiency in power-sensitive applications. The PCA9544AD also supports **hot insertion**, reducing the risk of bus contention during dynamic system reconfiguration.   With its compact **TSSOP-20 package**, the PCA9544AD is well-suited for space-constrained designs, including embedded systems, industrial controls, and consumer electronics. Its robust performance and ease of integration make it a reliable choice for expanding I²C bus capabilities in complex electronic systems. |
|||
Application Scenarios & Design Considerations
PCA9544A; 4-channel I²C multiplexer with interrupt logic
|
|||
Alternative Part Number
|
|||
For immediate assistance, call us at +86 533 2716050 or email [email protected]
Specializes in hard-to-find components chips