PCA9536DP,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 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 provides 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
• Includes polarity inversion register for input data manipulation
• Features low standby current consumption
• Contains internal pull-up resistors on I/O pins

I/o Expanders Applications

• ACPI power switches
• Sensor interface connections
• Push button detection circuits
• LED status indication modules
• Fan control systems

I/o Expanders Procurement Notes

Verify the specific ordering suffix against official NXP documentation to confirm the TSSOP8 package type and standard marking requirements. Ensure compatibility with the required temperature range of -40 °C to +85 °C. Confirm that the fixed slave address configuration meets system bus constraints before finalizing procurement specifications.

I/o Expanders Selection Notes

Select this component when additional digital I/O lines are required for embedded systems utilizing I2C or SMBus protocols. It is suitable for designs needing configurable input/output directions and polarity inversion capabilities. Consider the TSSOP8 package dimensions for PCB layout constraints and verify that the operating voltage aligns with the system's power supply rails.

I/o Expanders Part Context

The PCA9536 series is designed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. It offers a simple solution for expanding I/O capabilities without complex hardware overhead. The device integrates essential features like power-on reset and glitch-free initialization to ensure reliable operation in various industrial and consumer electronic applications.

I/o Expanders Replacement Considerations

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