PCA9557RGYRManufacturer: TI Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9557RGYR | TI | 870 | In Stock |
Description and Introduction
Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85 The **PCA9557RGYR** from Texas Instruments is a versatile **8-bit I/O expander** designed to enhance system flexibility by providing additional input/output ports through an **I²C-bus interface**. This compact and efficient component is ideal for applications requiring expanded GPIO capabilities without increasing microcontroller pin count.  
Featuring **low standby current consumption**, the PCA9557RGYR is suitable for power-sensitive designs. It supports both **input and output configurations**, with programmable polarity inversion for input ports, simplifying logic-level adaptation. The device operates across a **2.3V to 5.5V supply range**, making it compatible with various microcontrollers and embedded systems.   Key applications include industrial control systems, consumer electronics, and IoT devices where space and power efficiency are critical. The **interrupt output** function allows the host controller to monitor pin state changes efficiently, reducing polling overhead.   Housed in a **20-pin VQFN package**, the PCA9557RGYR offers a compact footprint for space-constrained designs while maintaining robust performance. Its **I²C-bus compatibility** ensures seamless integration with existing communication protocols, providing a reliable solution for expanding digital I/O in modern embedded systems.   With its combination of low power consumption, flexible configuration, and ease of use, the PCA9557RGYR is a practical choice for designers seeking efficient I/O expansion. |
|||
Application Scenarios & Design Considerations
Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-VQFN -40 to 85
|
|||
For immediate assistance, call us at +86 533 2716050 or email [email protected]
Specializes in hard-to-find components chips