PCA9536D,118

I/o Expanders Overview

The PCA9536D,118 is a CMOS device providing 4-bit General Purpose parallel Input/Output (GPIO) expansion for I2C-bus and SMBus applications. It operates within a supply voltage range of 2.3 V to 5.5 V and supports clock frequencies from 0 Hz to 400 kHz. The component features 5 V tolerant I/Os with an internal power-on reset that initializes the device state machine upon power application. It includes noise filters on SCL and SDA inputs and offers ESD protection exceeding 2000 V HBM. The device is housed in an SO8 plastic small outline package.

I/o Expanders Feature Summary

• Provides 4-bit I2C-bus GPIO expansion
• Includes polarity inversion register for active HIGH or LOW operation
• Features low standby current consumption
• Contains internal pull-up resistors on I/O pins

I/o Expanders Applications

• ACPI power switches
• Sensors
• Push buttons
• LEDs
• Fans

I/o Expanders Procurement Notes

Verify the manufacturer origin as NXP Semiconductors when sourcing this specific part number. Confirm the package type matches the required SO8 footprint. Ensure the operating temperature range aligns with system requirements. Check for RoHS compliance status before integration into final assemblies.

I/o Expanders Selection Notes

Select this component when additional digital I/O lines are needed for systems utilizing I2C or SMBus protocols. It is suitable for resource-constrained embedded designs requiring minimal hardware overhead. Consider the fixed slave address limitation if multiple devices share the same bus segment.

I/o Expanders Part Context

This component belongs to the PCA9536 family of I/O expanders developed by NXP Semiconductors. It enhances the family's capabilities by offering a simple solution for expanding GPIO resources. The device is designed to integrate seamlessly with microcontrollers and other system masters supporting standard I2C communication.

I/o Expanders Replacement Considerations

PCA9536D,112 is a direct substitute available in tube packaging.