The PCA9538 is an 8-bit I2C-bus and SMBus low power I/O port with interrupt and reset features, suitable for GPIO expansion in industrial and system management applications. It offers configurable input/output pins, polarity inversion, power-on reset, and an interrupt output to signal input changes. Available in several compact packages, it supports wide voltage operation from 2.3 V to 5.5 V, including 5 V tolerant I/Os, low standby current, and robust ESD protection, ideal for sensor interfaces, LEDs, fans, and power switches.
NXP PCA9538BS118 I/O Port Expander Specifications:
Supply Voltage: 2.3 V to 5.5 V
Power-On Reset: Yes, internal
Input/Output Pins: 8, configurable as input or output
Input Voltage Range: Up to Vpp (5.5 V)
Output Current: Max 25 mA per pin, total 85 mA
Standby Current: 1 nA (I2C active), 175 nA (standby)
Operating Temperature: -40°C to +125°C (depending on package), -40°C to +85°C (standard)
I2C Clock Frequency: 0 to 400 kHz
Package Types: HVQFN16, SO16, TSSOP16
Interrupt Output: Active LOW, open-drain
Polarity Inversion: Yes, configurable
Reset: Active LOW, with external reset pin
ESD Protection: Exceeds 2000 V HBM
Junction Temperature: Max +125°C
Pin Count: 16 pins
Isolation: High-impedance inputs when configured as input
Soldering: Compatible with reflow and wave processes, PCB footprints provided
Buy the NXP PCA9538 Reliable I/O Port for Industrial Applications
Enhance your industrial automation and system management solutions with the PCA9538 I/O port expander. Featuring low power consumption, flexible configuration, reset, and interrupt functions, it provides reliable GPIO expansion for sensors, LEDs, fans, and power switches. Supported by multiple compact packages like HVQFN16, SO16, and TSSOP16, it ensures easy integration into your designs. Order now online to improve your system efficiency with this robust I2C-bus device designed for industrial-grade performance and durability.
Get NXP PCA9538 today—built for low power, configurable I/O expansion, reset, and interrupt signaling in industrial systems.
Frequently Asked Questions
Where can I buy NXP PCA9538BS118?
You can click on the BUY or RFQ button to purchase PCA9538BS118 from an authorized NXP distributor.
How do I troubleshoot issues or seek technical support for part PCA9538BS118?