PCA9536YZPR

I/o Expanders Overview

The PCA9536YZPR is a CMOS device providing 4 bits of general-purpose parallel input/output expansion for I2C and SMBus applications. It operates within a power supply voltage range of 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. The component features five-volt tolerant I/Os, an active low interrupt output, and internal pull-up resistors. Packaged in an X2SON-8 format, it includes noise filters on SCL/SDA inputs and an internal power-on reset mechanism to ensure reliable operation across industrial temperature ranges.

I/o Expanders Feature Summary

• Provides four-bit GPIO expansion compatible with standard I2C and SMBus protocols
• Features polarity inversion registers and configuration control for flexible pin direction management
• Includes an active low interrupt output to signal asynchronous events without continuous polling

I/o Expanders Applications

• ACPI power switch control interfaces
• Sensor and pushbutton input expansion
• LED and fan status monitoring systems

I/o Expanders Procurement Notes

Verify the specific suffix YZPR against official Texas Instruments documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperatures and voltage levels before procurement. Cross-reference manufacturer part numbers to avoid counterfeit components.

I/o Expanders Selection Notes

Select this component when a compact solution for expanding I/O lines is required in space-constrained designs. It is suitable for applications needing remote I/O control via serial interfaces. Consider the X2SON-8 package size and low standby current characteristics for portable or battery-operated devices requiring minimal power consumption.

I/o Expanders Part Context

This part belongs to the PCA9536 family of remote I/O expanders developed to enhance Philips family IC capabilities. It serves as a bridge between microcontrollers and peripheral devices, allowing system designers to add functionality without consuming additional processor pins. The series is widely used in embedded systems requiring simple, cost-effective interface solutions.

I/o Expanders Replacement Considerations

Direct substitutes include the PCA9536DRG4 and PCA9536D from Texas Instruments. NXP Semiconductors offers the PCA9536PW and PCA9536BS as compatible alternatives. Verify pinout and electrical specifications match before substitution.