PCA9534RGVR

I/o Expanders Overview

The PCA9534RGVR is a remote 8-bit I/O expander manufactured by Texas Instruments, designed for low-power applications. It interfaces via I2C and SMBus protocols with a maximum clock frequency of 400 kHz. The device operates within a supply voltage range of 2.3 V to 5.5 V and supports an output current of 25 mA. It features configuration registers and an interrupt output pin. The component is housed in a VQFN-16 package, suitable for surface mount installation. It functions reliably across an operating temperature range from -40°C to +85°C and includes 2 kV ESD protection.

I/o Expanders Feature Summary

• Supports I2C and SMBus serial communication interfaces for system integration.
• Includes dedicated configuration registers to define input or output directions.
• Provides an interrupt output pin to signal state changes on inputs.

I/o Expanders Applications

• Portable battery-powered equipment requiring low power consumption.
• Systems needing additional general-purpose I/O lines via serial buses.
• Embedded controllers expanding input/output capabilities in compact designs.

I/o Expanders Procurement Notes

Verify the specific suffix RGVR corresponds to the VQFN-16 package and reel packaging format when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the supplier provides valid traceability data for the Texas Instruments part number to guarantee authenticity and quality standards are met during acquisition.

I/o Expanders Selection Notes

Select this component when an 8-bit expansion is required with I2C connectivity. The VQFN-16 package suits space-constrained PCB layouts. Verify that the system voltage aligns with the 2.3 V to 5.5 V operational range. Consider the interrupt feature if real-time input monitoring is necessary for the application design requirements.

I/o Expanders Part Context

This part belongs to the PCA9534 series of remote I/O expanders from Texas Instruments. It shares core functionality with variants like PCA9534PWR but differs in package type. The series is designed for low-power I2C/SMBus applications. Other family members include TSSOP and SSOP packages, offering flexibility for different board space constraints while maintaining identical electrical performance characteristics.

I/o Expanders Replacement Considerations

PCA9534DGVR serves as a functional substitute with identical electrical specifications but utilizes a TVSOP-16 package instead of VQFN-16. Verify pin compatibility and footprint differences before substitution. The PCA9534PWR offers the same functionality in a TSSOP-16 package. Ensure mechanical fitment matches the existing design constraints when considering these alternatives.