PCA9534ARGTR

I/o Expanders Overview

The PCA9534ARGTR is a remote 8-bit I/O expander manufactured by Texas Instruments, designed for low-power applications. It operates on an I2C and SMBus interface with a maximum clock frequency of 400 kHz. The device supports a supply voltage range from 1.65 V to 5.5 V, ensuring compatibility with various logic levels. It features an interrupt output pin and configuration registers for flexible input/output direction control. The component is housed in a VSSOP-16 package and is rated for operation within a temperature range of -40°C to +85°C.

I/o Expanders Feature Summary

• Provides 8-bit general-purpose digital input and output expansion via standard I2C/SMBus protocols.
• Includes an active-low interrupt output pin that signals state changes on inputs or mismatched outputs.
• Features individual configuration registers allowing each pin to be independently defined as input or output.

I/o Expanders Applications

• Portable consumer electronics requiring extended GPIO capabilities with minimal pin usage.
• Industrial control systems utilizing I2C-based communication architectures.
• Embedded devices needing low-power peripheral expansion in space-constrained designs.

I/o Expanders Procurement Notes

Verify the specific suffix 'ARGTR' against official Texas Instruments documentation to confirm the tape-and-reel packaging format and exact mass production status. Ensure compatibility with existing PCB footprints for the VSSOP-16 package during sourcing. Cross-reference the manufacturer's latest datasheet revision history to account for any recent design or specification updates before finalizing procurement orders.

I/o Expanders Selection Notes

Select this component when an I2C-compatible solution is required for expanding digital I/O lines in low-voltage environments. The wide supply voltage range accommodates both 1.8V and 3.3V/5V systems. Consider the interrupt functionality if real-time event detection is necessary without continuous polling. Verify that the target application does not exceed the specified operating temperature limits for the industrial grade variant.

I/o Expanders Part Context

This part belongs to the PCA9534A family of remote 8-bit I/O expanders. It shares functional similarities with other members like the PCA9534APWR but differs in package type and reel specifications. The series is widely used in embedded systems where board space is limited and I2C bus availability is sufficient for peripheral management tasks.

I/o Expanders Replacement Considerations

Direct substitutes include PCA9534APWR and PCA9534ADBR, which offer identical electrical characteristics. Verify package compatibility (TSSOP vs SSOP) and ensure the replacement matches the required reel quantity and moisture sensitivity level for assembly processes.