ATMXT3432S-S-ATR Equivalent & Substitute Parts

Part Overview

The ATMXT3432S-S-ATR is a touchscreen controller manufactured by Microchip Technology, classified as a Data Acquisition component within the maXTouch™ series. This device integrates a 12-bit resolution sensor interface with dual communication protocols (I2C and SPI), designed for surface-mount applications in 144-LQFP packaging.

The ATMXT3432S-S-ATR has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems currently utilizing this controller.

Substiute Parts

ATMXT3432S-S-ATR

Microchip TechnologyIn Stock: 6864ATMXT3432S-S-ATR Datasheet

Current PartRFQ

ATMXT2952TD-C2UR001

Microchip TechnologyIn Stock: 11143ATMXT2952TD-C2UR001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMXT3432S-S-ATR is based on the following criteria derived from the provided parameters:

Manufacturer Continuity: Both the main part and substitute are manufactured by Microchip Technology, ensuring design philosophy and firmware compatibility within the maXTouch ecosystem.

Series Alignment: The substitute part belongs to the maXTouch® series, maintaining functional consistency with the original design.

Interface Protocol Compatibility: The ATMXT3432S-S-ATR operates with I2C and SPI protocols. The substitute part (ATMXT2952TD-C2UR001) supports I2C and USB interfaces. I2C protocol is common to both devices, enabling communication compatibility in systems utilizing I2C as the primary interface.

Operating Temperature Range: Both devices operate across the identical temperature range (-40°C ~ 85°C), ensuring thermal performance equivalence in target applications.

Mounting and Environmental Standards: Both components are surface-mount devices with identical Moisture Sensitivity Level (MSL 3, 168 Hours), supporting equivalent handling and storage requirements.

Product Status Transition: The substitute part maintains active product status, providing long-term availability and supply chain stability compared to the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

Active Product Status: The ATMXT2952TD-C2UR001 maintains active product status with Microchip Technology, ensuring continued manufacturing support, technical documentation availability, and long-term supply chain viability. This contrasts with the obsolete ATMXT3432S-S-ATR, which has reached end-of-life status.

Regulatory Compliance: The substitute part meets ROHS3 compliance standards and carries REACH Unaffected designation, satisfying current environmental and regulatory requirements. The original part meets RoHS Compliant standards, representing an earlier compliance generation.

Manufacturer Support: Both components originate from Microchip Technology's maXTouch controller family, ensuring design continuity and access to manufacturer technical resources. The substitute part's active status provides access to current firmware updates and application support.

Supply Chain Availability: Current inventory data indicates 11,079 units of the substitute part available as new original stock, compared to 6,816 units of the obsolete main part. The substitute part is packaged in Tape & Reel format, supporting automated assembly processes.

Interface Consideration: Systems designed around I2C communication can transition to the ATMXT2952TD-C2UR001 without protocol modification. Applications requiring SPI interface exclusively require design evaluation for USB interface compatibility or alternative component selection.

Frequently Asked Questions (FAQ)

Q: Can the ATMXT2952TD-C2UR001 directly replace the ATMXT3432S-S-ATR in existing designs?

A: Direct replacement is possible for applications utilizing I2C as the primary communication interface. The substitute part supports I2C protocol, matching the main part's communication capability. Applications dependent on SPI interface require design modification or alternative component selection, as the substitute part implements USB instead of SPI.

Q: What are the package differences between these components?

A: The ATMXT3432S-S-ATR uses 144-LQFP (20x20) packaging, while the ATMXT2952TD-C2UR001 uses 162-UFBGA (10x5) packaging. Both are surface-mount technologies with identical Moisture Sensitivity Level ratings. PCB layout and footprint redesign is required for physical substitution.

Q: Are the operating temperature ranges equivalent?

A: Yes. Both components operate across the identical temperature range of -40°C to 85°C, ensuring thermal performance equivalence in target applications.

Q: What is the significance of the product status difference?

A: The ATMXT3432S-S-ATR is classified as obsolete, indicating Microchip Technology has discontinued manufacturing and support. The ATMXT2952TD-C2UR001 maintains active status, ensuring continued availability, technical support, and firmware updates from the manufacturer.

Q: How do the voltage supply specifications compare?

A: The ATMXT3432S-S-ATR supports dual voltage ranges (2.57V ~ 3.47V and 3.14V ~ 10.5V), providing flexibility for multiple power supply configurations. The ATMXT2952TD-C2UR001 operates at a fixed 3.3V supply voltage. System power architecture must accommodate this specification difference during substitution.

Q: Are both components RoHS compliant?

A: Yes. The ATMXT3432S-S-ATR meets RoHS Compliant standards. The ATMXT2952TD-C2UR001 meets the more recent ROHS3 Compliant standard, representing current environmental compliance requirements.

Q: What is the resolution specification for the substitute part?

A: The ATMXT3432S-S-ATR specifies 12-bit resolution. The ATMXT2952TD-C2UR001 does not provide resolution specification in the available technical parameters. Applications requiring confirmed 12-bit resolution performance require consultation of the substitute part's detailed datasheet.