TCA6416ARTWR

Overview

The TCA6416ARTWR is a low-voltage 16-bit I2C and SMBus I/O expander manufactured by Texas Instruments. It operates within a supply voltage range of 1.65V to 5.5V, supporting flexible integration into various power domains. The device features an interrupt output, a reset input, and configuration registers for pin direction control. It includes voltage translation capabilities to interface with different logic levels. The component is housed in a 20-pin VQFN package, designed for surface-mount applications with a compact footprint suitable for space-constrained designs.

Feature Summary

• Provides 16 general-purpose digital input/output ports expandable via I2C and SMBus interfaces
• Integrates voltage translation functionality to bridge different system voltage domains
• Includes dedicated interrupt output and reset input pins for enhanced system control

Applications

• Portable consumer electronics requiring extended GPIO availability
• Industrial control systems utilizing I2C/SMBus communication protocols
• Embedded systems needing remote I/O expansion with voltage level shifting

Procurement Notes

Verify the specific suffix 'ARTWR' against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the target I2C address configuration and voltage domain requirements before procurement. Check for any recent product change notices regarding manufacturing sites or material composition updates.

Selection Notes

Select this component when a design requires 16 additional digital I/O lines controlled via standard I2C or SMBus protocols. It is appropriate for systems operating between 1.65V and 5.5V where voltage translation between core and peripheral logic is necessary. Consider the 20-pin VQFN package dimensions for PCB layout constraints.

Part Context

This part belongs to the TCA6416A family of low-voltage I/O expanders from Texas Instruments. It serves as a solution for expanding microcontroller I/O capabilities in embedded applications. The device complements other TI logic and interface products by providing simple serial expansion without complex driver requirements.

Replacement Considerations

Direct substitutes include TCA6416ARTWRG4 and variants with different suffixes such as .A or .B, which may indicate revisions or packaging differences. Verify pinout and electrical characteristics match exactly before substitution.