PCA9534ARGVR

I/o Expanders Overview

The PCA9534ARGVR is an 8-bit I/O expander from Texas Instruments designed for I2C and SMBus interfaces. 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 the specific configuration. It includes an interrupt output pin and power-on reset (POR) functionality. The component is housed in a 16-TVSOP package and is rated for operation between -40°C and +85°C.

I/o Expanders Feature Summary

• Provides remote 8-bit general-purpose digital input and output expansion via standard I2C communication protocols.
• Includes dedicated configuration registers allowing individual pins to be set as inputs or outputs.
• Features an active-low interrupt output pin that signals state changes on input ports to the host processor.

I/o Expanders Applications

• Portable consumer electronics requiring additional GPIOs in space-constrained designs
• Industrial control systems utilizing I2C-based peripheral management
• Embedded systems needing low-power I/O expansion with interrupt capabilities

I/o Expanders Procurement Notes

Verify the 'A' suffix indicates the specific temperature grade and manufacturing lot when ordering. Confirm the TVSOP-16 package dimensions against the mechanical drawing. Ensure the design supports the required I2C pull-up voltages compatible with the 2.3V to 5.5V operating range. Check for RoHS compliance status relevant to the target market regulations.

I/o Expanders Selection Notes

Select this component when an 8-bit I/O expander with interrupt capability is required for I2C buses. Consider the TVSOP-16 package if board space is limited compared to larger SOIC packages. Verify that the system voltage levels align with the 2.3V minimum and 5.5V maximum supply requirements. Evaluate the 400 kHz speed limit against the system's communication needs.

I/o Expanders Part Context

This part belongs to the PCA9534 family of low-power I/O expanders. It shares functional similarities with other devices in the series but differs in package type and specific electrical characteristics. The 'DGVR' suffix typically denotes the tape and reel packaging variant of the TVSOP-16 package.

I/o Expanders Replacement Considerations

The TCA9534PWR is listed as a manufacturer-recommended alternative. Verify compatibility regarding voltage ranges and package dimensions before substitution. Other family members may offer different pin counts or interface speeds.