PCA8550DManufacturer: NXP 4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch | |||
| Partnumber | Manufacturer | Quantity | Availability |
|---|---|---|---|
| PCA8550D | NXP | 1824 | In Stock |
Description and Introduction
4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch The **PCA8550D** from NXP Semiconductors is a highly integrated, low-power **I²C-bus controlled 8-bit I/O expander** designed to simplify digital interface expansion in embedded systems. Featuring an industry-standard I²C interface, this component enables seamless communication with microcontrollers, allowing for efficient control of multiple peripheral devices while minimizing GPIO usage.  
With **quasi-bidirectional I/O ports**, the PCA8550D supports flexible input and output configurations, making it ideal for applications such as sensor interfacing, LED control, and keypad scanning. Its **internal power-on reset** ensures reliable startup conditions, while **interrupt functionality** enhances system responsiveness by signaling input changes.   Operating across a **wide voltage range (1.65V to 5.5V)**, the PCA8550D is compatible with both 3.3V and 5V systems, offering versatility in mixed-voltage environments. Its **low standby current consumption** makes it suitable for battery-powered and energy-efficient designs.   Housed in a compact **SO16 package**, the PCA8550D is a robust solution for space-constrained applications, combining ease of integration with reliable performance. Engineers will appreciate its straightforward implementation and compatibility with standard I²C protocols, streamlining development in industrial, consumer, and IoT applications.   For detailed specifications, refer to the official datasheet to ensure proper integration within your design. |
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Application Scenarios & Design Considerations
4-bit multiplexed/1-bit latched 5-bit I2C EEPROM DIP switch
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