PCA9534DGVR

I/o Expanders Overview

The PCA9534DGVR is a remote 8-bit I2C and SMBus low-power I/O expander 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 push-pull outputs capable of sourcing or sinking 10 mA (or 25 mA depending on specific load conditions) and includes configuration registers for setting input/output directions. It provides an interrupt output pin and a reset pin, housed in a 16-TVSOP package with an operating temperature range from -40°C to +85°C.

I/o Expanders Feature Summary

• Supports I2C and SMBus serial communication interfaces for system integration
• Includes dedicated interrupt output pin for efficient event-driven monitoring
• Features configuration registers allowing flexible input/output direction control

I/o Expanders Applications

• Portable consumer electronics requiring extended GPIO capabilities
• Industrial control systems utilizing I2C/SMBus networks
• Embedded systems needing low-power I/O expansion

I/o Expanders Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the 16-TVSOP package. Check for any recent product change notifications regarding material composition or assembly updates before finalizing procurement orders.

I/o Expanders Selection Notes

Select this component when an 8-bit I/O expander with interrupt capability is required for I2C-based designs. Compare against the TCA9534 series if a lower minimum supply voltage of 1.65 V is necessary for the application. Confirm that the 400 kHz maximum clock speed meets the system's timing requirements.

I/o Expanders Part Context

This part belongs to the PCA953x family of remote 8-bit I/O expanders. It shares functional similarities with the PCA9538 but differs in specific electrical characteristics and feature sets such as reset pin availability. It serves as a standard solution for expanding microcontroller GPIO resources in space-constrained designs.

I/o Expanders Replacement Considerations

The TCA9534PWR is listed as a manufacturer-recommended alternative. Verify pinout compatibility and electrical parameter alignment, particularly the minimum supply voltage differences between the PCA9534 and TCA9534 families.