ATMXT3432S-S-ATR

Overview

The ATMXT3432S-S-ATR is a maXTouch series touchscreen controller from Microchip Technology, designed for automotive applications. It supports up to 112 reconfigurable touch channels or 162 equivalent channels in ultrawide mode. The device enables large, curved, and free-form touch displays, supporting formats such as 20-inch 16:9 and 34-inch 7:1 screens. It meets ASIL-A/B functional safety standards under ISO 26262 and includes firmware authentication for secure Over-the-Air updates per ISO 21434:2021.

Feature Summary

• Supports up to 112 reconfigurable touch channels or 162 equivalent channels in ultrawide mode
• Meets ASIL-A/B functional safety standards compliant with ISO 26262
• Enables secure Over-the-Air (OTA) firmware updates via integrated authentication per ISO 21434:2021
• Designed for large, curved, and free-form touch displays up to 34 inches

Applications

• Automotive infotainment systems requiring large display support
• Curved or free-form touchscreen interfaces in vehicles
• Safety-critical touch controls meeting ASIL-A/B standards

Procurement Notes

Verify the exact package type and interface configuration against the official datasheet before procurement. Confirm that the S-ATR suffix corresponds to the required reel packaging and temperature grade. Ensure compatibility with the target vehicle’s main computer for OTA update implementation. Check for any recent Product Change Notifications (PCNs) affecting component specifications.

Selection Notes

Select this model when high channel count and functional safety certification are required. Compare with ATMXT2496M1 if fewer channels suffice. Verify that the system design supports ultrawide mode for expanded channel equivalence. Ensure the host processor can handle the communication interface and firmware verification process securely.

Part Context

This component belongs to Microchip’s maXTouch M1 series of single-chip touchscreen controllers. It is part of an expanding range aimed at automotive markets, including variants like ATMXT3072M1 and ATMXT2496M1. The series emphasizes scalability, safety compliance, and cybersecurity for modern vehicle displays.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Consider evaluating other maXTouch M1 series devices such as ATMXT3072M1 or ATMXT2496M1 based on channel requirements and form factor constraints.