NXP Semiconductors

PCA9675PW,118  

I/O Expanders

PCA9675PW,118 Description

The PCA9675PW,118 from NXP Semiconductors is a high-performance 16-bit I/O expander designed for I²C-bus and SMBus applications. Operating within a 2.3V to 5.5V supply range, it offers flexible voltage compatibility for diverse embedded systems. With a 1 MHz clock frequency, this device ensures efficient data transfer, making it suitable for high-speed communication requirements. Housed in a 24-pin TSSOP package, it is optimized for surface-mount (SMT) applications, providing space-saving benefits in compact designs.

PCA9675PW,118 Features

• 16 configurable I/O pins with 300µA source/42mA sink current capability, enabling direct drive of LEDs or other peripherals.
• Interrupt output pin for efficient event-driven system design, reducing polling overhead.
• Power-On Reset (POR) ensures reliable initialization at startup.
• Wide voltage range (2.3V–5.5V) supports mixed-voltage systems without level shifters.
• I²C/SMBus-compatible interface with 1 MHz operation, ideal for high-speed control applications.
• Bulk packaging for cost-effective volume production.

PCA9675PW,118 Applications

This I/O expander excels in scenarios requiring additional GPIOs or low-latency control, such as:

• Industrial automation: Expanding microcontroller I/Os for sensor arrays or actuator control.
• Consumer electronics: LED dimming, keypad scanning, or display backlight management.
• Embedded systems: Bridging voltage domains in multi-supply designs.
• IoT devices: Efficient peripheral management in space-constrained applications.

Conclusion of PCA9675PW,118

The PCA9675PW,118 stands out for its high current drive, interrupt capability, and broad voltage range, making it a versatile solution for expanding I/O in modern electronics. Its I²C/SMBus compatibility and 1 MHz performance ensure seamless integration into high-speed systems, while the compact TSSOP package suits space-sensitive designs. For engineers seeking a reliable, feature-rich I/O expander, this device offers a compelling balance of performance and flexibility.

PCA9675PW,118 Documents

Download datasheets and manufacturer documentation for PCA9675PW,118

Datasheets :

PCA9675