PCA9538DGVR

I/o Expanders Overview

The PCA9538DGVR is a low-power I/O expander manufactured by Texas Instruments, designed for remote I/O expansion via I2C and SMBus interfaces. It provides eight general-purpose digital input/output pins within a 16-pin TVSOP package. The device operates on a supply voltage ranging from 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. It features configuration registers, an interrupt pin, and a reset pin for system control. The component functions reliably across a temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Supports I2C and SMBus serial communication protocols for efficient data transfer.
• Includes dedicated interrupt output and reset pin capabilities for system monitoring and recovery.
• Configurable input/output direction settings allow flexible port management.

I/o Expanders Applications

• Remote I/O expansion in embedded systems requiring additional digital ports.
• Consumer electronics utilizing low-power interface requirements.
• Industrial control panels needing reliable signal expansion over standard buses.

I/o Expanders Procurement Notes

Verify the specific suffix DGVR confirms the TVSOP-16 package and reel packaging format. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the source document explicitly lists this part number as active or end-of-life to avoid supply chain disruptions during production planning.

I/o Expanders Selection Notes

Select this component when eight bidirectional I/O lines are required with I2C compatibility. The 2.3 V to 5.5 V operating range suits both 3.3 V and 5 V logic systems. Consider the TVSOP-16 package constraints for PCB layout density compared to SOIC or TSSOP alternatives within the same family.

I/o Expanders Part Context

This part belongs to the PCA9538 series of low-power I/O expanders. It shares functional similarities with variants like PCA9538DWR (SOIC) and PCA9538PWR (TSSOP), differing primarily in physical package dimensions and thermal characteristics while maintaining identical electrical specifications and interface protocols.

I/o Expanders Replacement Considerations

Direct package replacements include PCA9538DWR for SOIC-16 and PCA9538PWR for TSSOP-16. Verify pinout compatibility before substitution. Other series members like PCA9534 offer similar functionality but may differ in specific feature sets or availability status.