PCA9536DP/DG,118

I/o Expanders Overview

The PCA9536DP,118 is a CMOS device providing 4-bit General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/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. It includes noise filters on SCL/SDA inputs and offers ESD protection exceeding 2000 V HBM. The device is housed in a TSSOP8 package.

I/o Expanders Feature Summary

• Provides 4-bit I2C-bus GPIO expansion
• Features polarity inversion register for active HIGH or LOW operation
• Includes internal power-on reset and glitch-free power-up
• Offers low standby current consumption

I/o Expanders Applications

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

I/o Expanders Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Ensure the procurement matches the required temperature range and RoHS compliance status as defined in the product data sheet.

I/o Expanders Selection Notes

Select this component when additional I/O is needed for systems utilizing I2C-bus or SMBus protocols. Consider the fixed slave address limitation, which allows only one device per bus segment. Evaluate the 4-bit configuration against system requirements for input/output direction control and polarity inversion needs.

I/o Expanders Part Context

The PCA9536 series enhances the NXP Semiconductors family of I2C-bus I/O expanders. The DP variant specifically denotes the TSSOP8 plastic thin shrink small outline package. This part number represents a standard surface-mount solution designed for resource-constrained embedded environments requiring simple GPIO expansion.

I/o Expanders Replacement Considerations

PCA9536D,118 serves as a direct substitute offering identical functionality in an SO8 package.