PCA9535RGER

I/o Expanders Overview

The PCA9535RGER is a 16-bit I/O expander designed for I2C and SMBus interfaces, manufactured by Texas Instruments. It operates within a supply voltage range of 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. The device features an interrupt output capability and includes configuration registers for flexible pin direction control. Packaged in a VQFN-24 form factor suitable for surface mount applications, it functions across a temperature range of -40°C to +85°C. The component provides ESD protection rated at 2 kV and offers an output current capability of -20 mA.

I/o Expanders Feature Summary

• Supports bidirectional data transfer via I2C and SMBus protocols
• Includes dedicated interrupt output pin for efficient event handling
• Features configuration registers for individual I/O pin direction setting

I/o Expanders Applications

• Portable systems requiring low power consumption
• Industrial control panels with limited bus lines
• Consumer electronics utilizing I2C/SMBus communication

I/o Expanders Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape/reel specifications match your assembly requirements. Confirm RoHS compliance status and moisture sensitivity level before storage and reflow soldering processes. Check for any recent product change notifications that may affect pinout or electrical characteristics.

I/o Expanders Selection Notes

Select this component when a 16-bit expansion is required on an I2C bus with a supply voltage starting at 2.3 V. Ensure the system logic levels are compatible with the specified operating range. Consider the VQFN-24 package constraints regarding thermal dissipation and PCB layout space compared to other available packages in the series.

I/o Expanders Part Context

This part belongs to the PCA9535 family of remote I/O expanders. It shares functional similarities with variants like the PCA9535PWR but differs in packaging. The RGER suffix specifically denotes the VQFN-24 package configuration. Other family members may offer different voltage ranges or pin counts.

I/o Expanders Replacement Considerations

The TCA9535RGER serves as a direct functional substitute with a wider voltage range starting at 1.65 V. Verify pin compatibility and register mapping before substitution. The PCA9535RTWR offers the same functionality in a WQFN-24 package.