TCA6416ZQSR

Overview

The TCA6416ZQSR is a low-voltage 16-bit I2C and SMBus I/O expander manufactured by Texas Instruments. It features voltage translation capabilities, allowing operation with input/output voltages ranging from 1.08 V to 3.6 V. The device includes an interrupt output, a reset input, and configuration registers for flexible pin direction control. Designed for automotive applications, it complies with AEC-Q100 standards and operates within a temperature range of -40°C to +125°C. The component is housed in a VQFN package.

Feature Summary

• Supports I2C and SMBus communication protocols for system integration
• Provides bidirectional voltage translation between host and peripheral domains
• Includes dedicated interrupt output and hardware reset functionality
• Configurable pin directions via internal configuration registers

Applications

• Automotive infotainment systems requiring expanded I/O capabilities
• Industrial control panels utilizing I2C/SMBus interfaces
• Portable electronic devices needing low-voltage interface expansion

Procurement Notes

Verify the specific suffix ZQSR against official Texas Instruments documentation to confirm automotive qualification status and tape-and-reel packaging specifications. Ensure compatibility with required operating temperatures and voltage levels before procurement. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity.

Selection Notes

Select this component when a 16-bit I/O expansion solution is required for I2C or SMBus buses with mixed voltage domains. Consider the TCA6416ZQSR for designs demanding automotive reliability and wide temperature operation. Evaluate package constraints and power consumption requirements relative to alternative expanders in the TCA6416 family.

Part Context

This part belongs to the TCA6416 family of low-voltage I/O expanders. It shares functional similarities with variants like the TCA6416APWRG4 but differs in packaging and qualification grades. The ZQSR suffix typically denotes specific automotive-grade processing and packaging configurations distinct from standard commercial versions.

Replacement Considerations

Direct substitutes include other TCA6416 variants such as TCA6416APWRG4, provided package and qualification requirements match. Verify pin-to-pin compatibility and electrical characteristics before substitution.