ATA663254-GBQW

Specialized ICS Overview

The ATA663254-GBQW is an automotive-grade LIN System Basis Chip (SBC) from Microchip Technology, integrating a LIN transceiver compliant with LIN 2.0 through 2.2A and ISO 17987-4 standards with a linear low-drop voltage regulator. It operates within a supply voltage range of 5V to 28V, delivering a regulated 5.0V output at up to 85mA with ±2% tolerance. The device supports Normal, Silent, Sleep, and Fail-Safe modes, achieving typical current consumption as low as 9μA in Sleep mode. Key features include wake-up capability via the LIN bus, VCC undervoltage detection with open-drain reset output, and protection against short circuits and overtemperature conditions.

Specialized ICS Feature Summary

• Integrated LIN transceiver supporting data rates up to 20 kBd with slope control for secure communication.
• Linear low-drop voltage regulator providing 5.0V output with 85mA current capability and ±2% accuracy.
• Low power consumption: typically 9μA in Sleep mode and 47μA in Silent mode.
• Fail-safe operation with automatic switching upon undervoltage or overtemperature events.

Specialized ICS Applications

• Automotive convenience electronics slave nodes
• LIN bus systems requiring integrated power regulation
• Applications needing remote wake-up capabilities

Specialized ICS Procurement Notes

Verify component authenticity through authorized Microchip distributors. Confirm package type availability, as the ATA663254 is offered in both 8-Lead VDFN and SOIC packages. Ensure ordering suffixes match specific packaging requirements such as tape and reel quantities. Check for recent Product Change Notifications (PCNs) regarding manufacturing site updates or material changes before finalizing procurement.

Specialized ICS Selection Notes

Select the ATA663254 when a 5V regulator is required; use the ATA663231 for 3.3V applications. Consider the 8-Lead SOIC package if thermal dissipation constraints favor that form factor over the VDFN. Ensure external capacitors meet the recommended MLC specifications for stability. Verify that the application environment stays within the -40°C to +150°C operating temperature range.

Specialized ICS Part Context

The ATA663254 belongs to the ATA663201/03/31/54 family of LIN system basis chips. This family shares compatible footprints between the SBC variants (ATA663231/54) and standalone voltage regulators (ATA663201/03). The ATA663254 specifically provides the 5V regulator option, distinguishing it from the 3.3V ATA663231 within the same functional architecture.

Specialized ICS Replacement Considerations

The ATA663231 is a direct pin-compatible alternative offering a 3.3V regulator instead of 5V. Standalone regulators like the ATA663201 or ATA663203 provide only voltage regulation without the LIN transceiver functionality. No other cross-model substitutes are documented in the provided source material.