PCA9555RGERG4Manufacturer: TI/BB Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-VQFN -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9555RGERG4 | TI/BB | 145 | In Stock |
Description and Introduction
Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-VQFN -40 to 85 The **PCA9555RGERG4** from Texas Instruments is a versatile 16-bit I/O expander designed to enhance system flexibility by providing additional input/output ports through an I²C bus interface. This component is ideal for applications requiring expanded GPIO capabilities without increasing microcontroller pin count.  
Featuring a wide operating voltage range of 2.3V to 5.5V, the PCA9555RGERG4 supports both push-pull and open-drain output configurations, making it suitable for interfacing with various logic levels and peripheral devices. Its interrupt output pin allows efficient event-driven processing, reducing the need for continuous polling.   With individually configurable I/O pins, each port can be set as an input or output, offering adaptability in diverse designs. The device also includes internal pull-up resistors, simplifying circuit design while maintaining low power consumption.   Housed in a compact **24-pin VQFN (RGE) package**, the PCA9555RGERG4 is well-suited for space-constrained applications such as industrial controls, consumer electronics, and embedded systems. Its robust I²C compatibility ensures seamless integration with most microcontrollers, enabling scalable and efficient system expansion.   Engineers value this component for its reliability, ease of implementation, and ability to streamline complex I/O management in modern electronic designs. |
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Application Scenarios & Design Considerations
Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers 24-VQFN -40 to 85
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