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PCA9554DGVR from TI,Texas Instruments

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PCA9554DGVR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
PCA9554DGVR TI 997 In Stock

Description and Introduction

Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-TVSOP -40 to 85 The **PCA9554DGVR** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance system flexibility by providing additional GPIO ports for microcontrollers or processors. This low-power CMOS device simplifies interfacing with peripheral components, making it ideal for applications requiring expanded I/O capabilities without increasing the complexity of the main controller.  

Featuring interrupt output functionality, the PCA9554DGVR can alert the host controller of input state changes, reducing the need for continuous polling. Its I²C interface supports standard (100 kHz) and fast (400 kHz) modes, ensuring compatibility with a wide range of host devices. Each of the eight I/O pins can be independently configured as an input or output, with internal pull-up resistors eliminating the need for external components in many cases.  

Operating within a voltage range of 2.3V to 5.5V, this expander is suitable for both 3.3V and 5V systems. Its compact TSSOP-16 package makes it a space-efficient solution for embedded designs, including industrial controls, consumer electronics, and IoT devices. With robust ESD protection and low standby current consumption, the PCA9554DGVR delivers reliable performance in power-sensitive applications.  

This versatile component simplifies system expansion while maintaining efficiency, making it a practical choice for designers seeking scalable I/O solutions.

Application Scenarios & Design Considerations

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

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