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PCA9557DGVR from TI,Texas Instruments

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PCA9557DGVR

Manufacturer: TI

Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TVSOP -40 to 85

Partnumber Manufacturer Quantity Availability
PCA9557DGVR TI 156 In Stock

Description and Introduction

Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TVSOP -40 to 85 The **PCA9557DGVR** from Texas Instruments is a versatile **8-bit I/O expander** designed to enhance system flexibility in microcontroller-based applications. Utilizing the **I²C-bus/SMBus interface**, this component enables efficient communication with minimal GPIO pin usage, making it ideal for space-constrained designs.  

Featuring **low standby current consumption**, the PCA9557DGVR is well-suited for power-sensitive applications. It supports both input and output configurations, with programmable polarity inversion for input ports, simplifying logic-level adaptation. The device operates over a **wide voltage range (2.3V to 5.5V)**, ensuring compatibility with various microcontrollers and peripherals.  

Key applications include **industrial controls, consumer electronics, and embedded systems**, where expanding I/O capabilities without increasing microcontroller complexity is essential. The PCA9557DGVR also includes internal pull-up resistors, reducing external component count and simplifying PCB design.  

Housed in a compact **TSSOP-16 package**, this I/O expander offers a balance of performance and footprint efficiency. Its robust design, combined with Texas Instruments' reliability, makes it a practical choice for engineers seeking scalable I/O solutions in modern electronic systems.  

For detailed specifications, refer to the official datasheet to ensure proper integration into your design.

Application Scenarios & Design Considerations

Remote 8-Bit I2C and SMBus Low-Power I/O Expander with Reset and Configuration Registers 16-TVSOP -40 to 85

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