PCA9538DGVRManufacturer: TI Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-TVSOP -40 to 85 | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA9538DGVR | TI | 2000 | In Stock |
Description and Introduction
Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-TVSOP -40 to 85 The **PCA9538DGVR** from Texas Instruments is a versatile, low-power **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 a host controller while minimizing pin usage.  
Featuring **8 programmable GPIO pins**, the PCA9538DGVR can be configured as inputs or outputs, supporting both push-pull and open-drain operations. Its **interrupt output** functionality allows immediate notification of input state changes, reducing the need for continuous polling. With an operating voltage range of **1.65V to 5.5V**, it is compatible with a wide variety of logic levels, making it suitable for mixed-voltage systems.   The device includes **internal power-on reset** circuitry, ensuring reliable initialization, and offers **low standby current consumption**, making it ideal for power-sensitive designs. Available in a compact **TSSOP-16 package**, the PCA9538DGVR is well-suited for space-constrained applications such as industrial controls, consumer electronics, and embedded systems.   Engineers benefit from its **hot-insertion protection** and **noise-filtered inputs**, enhancing robustness in electrically noisy environments. Whether expanding I/O capabilities or simplifying system design, the PCA9538DGVR provides a reliable and efficient solution for modern digital interfaces. |
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Application Scenarios & Design Considerations
Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers 16-TVSOP -40 to 85
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