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PCA9554APWRG4 from TI,Texas Instruments

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PCA9554APWRG4

Manufacturer: TI

Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9554APWRG4 TI 74 In Stock

Description and Introduction

Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85 The **PCA9554APWRG4** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility by providing additional GPIO (General-Purpose Input/Output) ports. This CMOS-based component simplifies microcontroller interfacing, enabling efficient control of multiple peripherals while conserving valuable I/O resources.  

Featuring an I²C interface with selectable addresses, the PCA9554APWRG4 supports up to eight devices on the same bus, making it ideal for applications requiring scalable I/O expansion. Each of its eight I/O pins can be independently configured as inputs or outputs, with internal pull-up resistors eliminating the need for external components in many designs.  

With a wide operating voltage range of **2.3V to 5.5V**, the device is compatible with various logic levels, ensuring seamless integration into mixed-voltage systems. It also includes interrupt output functionality, reducing polling overhead by alerting the host controller to input state changes.  

Common applications include industrial automation, consumer electronics, and embedded systems where space and power efficiency are critical. The **TSSOP-16** package ensures compact PCB footprint while maintaining robust performance.  

The PCA9554APWRG4 combines reliability with ease of use, making it a practical choice for designers seeking efficient I/O expansion solutions.

Application Scenarios & Design Considerations

Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TSSOP -40 to 85

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