PCA9534ADBRManufacturer: TI Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9534ADBR | TI | 1950 | In Stock |
Description and Introduction
Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 The **PCA9534ADBR** from Texas Instruments is an 8-bit I²C-bus and SMBus I/O expander designed to enhance the input/output capabilities of microcontrollers and embedded systems. This versatile component enables bidirectional communication, allowing each of its eight I/O pins to be independently configured as either an input or output.  
Featuring a wide operating voltage range of **1.65V to 5.5V**, the PCA9534ADBR is compatible with both low-voltage and standard logic levels, making it suitable for a variety of applications. Its I²C interface supports clock frequencies up to **400 kHz**, ensuring efficient data transfer in systems requiring multiple peripheral connections.   Key features include **interrupt output** for monitoring input changes, **low standby current consumption**, and **internal power-on reset** for reliable initialization. The device also provides **polarity inversion registers**, allowing flexible signal conditioning without external components.   Common applications include **industrial control systems**, **consumer electronics**, and **embedded computing**, where expanding I/O capabilities is essential. Its compact **TSSOP-16** package ensures space-efficient integration into PCB designs.   With robust performance and ease of integration, the PCA9534ADBR is a practical solution for designers seeking scalable I/O expansion while maintaining system simplicity. |
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Application Scenarios & Design Considerations
Remote 8-Bit I2C and Low-Power I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85
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