PCA9534ARGTRG4

I/o Expanders Overview

The PCA9534ARGTRG4 is an 8-bit I/O expander designed for I2C and SMBus communication. It operates within a supply voltage range of 1.65 V to 5.5 V, supporting low-power applications across various digital systems. The device features eight quasi-bidirectional outputs with configurable pull-up resistors. It includes configuration registers to set input or output directions for each pin. An interrupt output pin signals state changes on inputs. The component supports standard and fast-mode I2C protocols with clock frequencies up to 400 kHz. It is housed in a 16-pin WSON package suitable for space-constrained designs.

I/o Expanders Feature Summary

• Supports wide supply voltage operation from 1.65 V to 5.5 V
• Provides eight quasi-bidirectional I/O pins with internal pull-ups
• Includes dedicated interrupt output for efficient event monitoring
• Compatible with standard I2C and SMBus bus protocols

I/o Expanders Applications

• Portable consumer electronics requiring low power consumption
• Industrial control systems utilizing I2C/SMBus networks
• Embedded systems needing additional GPIO expansion

I/o Expanders Procurement Notes

Verify the specific suffix 'G4' indicates lead-free composition and RoHS compliance as per Texas Instruments standards. Confirm the 'RGT' designation corresponds to the correct 16-pin WSON package variant. Ensure compatibility with existing PCB footprints before procurement. Check for recent product change notifications regarding manufacturing site updates.

I/o Expanders Selection Notes

Select this component when an 8-bit I/O expander is required with support for voltages as low as 1.65 V. It is suitable for designs needing interrupt-driven input monitoring via a dedicated pin. Consider the WSON package size if board space is limited compared to TSSOP alternatives. Verify that the I2C address configuration meets system addressing requirements.

I/o Expanders Part Context

This part belongs to the PCA9534 family of remote 8-bit I/O expanders. It shares functional similarities with the PCA9534A series but differs in operating voltage ranges. The device complements other interface ICs by providing flexible GPIO management over serial buses. It is commonly used alongside microcontrollers requiring expanded peripheral connectivity.

I/o Expanders Replacement Considerations

The PCA9534APWRG4 is a pin-compatible alternative in a TSSOP-16 package. The PCA9534ADGVR offers similar functionality in a TVSOP-16 package. Verify voltage range specifications when substituting, as some variants may have different minimum operating voltages.