The PCA9538 is a low power 8-bit I2C-bus GPIO expander with interrupt and reset features, designed for applications requiring additional I/O ports such as sensors, LEDs, and power switches. It offers configurable input/output pins, polarity inversion, and an interrupt output that signals when input states change. Its various package options include TSSOP16, HVQFN16, and HVQFN16, supporting operation from 2.3 V to 5.5 V. Power-on reset and active LOW reset inputs ensure reliable system initialization, making it ideal for complex embedded control designs.
Device type: 8-bit I2C-bus GPIO expander with interrupt and reset
Power supply voltage: 2.3 V to 5.5 V
Package types: TSSOP16, HVQFN16, HVQFN16
Operational current: maximum 85 mA (all I/Os sourcing) and 100 mA (ground source)
Input/output pins: 8 configurable as input or output, default inputs at reset
Polarity inversion register for active HIGH or LOW operation
Interrupt: active LOW, open-drain output, triggers on input changes
Operating temperature: -40°C to +125°C depending on package
ESD protection: exceeds 2000 V HBM
Clock frequency: 0 Hz to 400 kHz
Buy the NXP Series PCA9538 GPIO Expander: PCA9538PW118
Order the NXP PCA9538PW118 online today for flexible GPIO expansion in your embedded designs. Equipped with interrupt signals, reset capabilities, and configurable I/O pins, this device supports operation from 2.3 V to 5.5 V, making it suitable for various applications such as sensors, LEDs, and power switches. Available in multiple package options including TSSOP16 and HVQFN16, it ensures durability and ease of integration. Purchase now to enhance your system’s I/O capacity with a trusted component from NXP.
Get NXP PCA9538PW118 today—built for reliable GPIO expansion with low power consumption and robust interrupt features.
Frequently Asked Questions
Where can I buy NXP PCA9538PW118?
You can click on the BUY or RFQ button to purchase PCA9538PW118 from an authorized NXP distributor.
How do I troubleshoot issues or seek technical support for part PCA9538PW118?