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Home > Products > RF and Wireless > RFID, RF Access, Monitoring ICs

Melexis Technologies NV MLX90132RLQ-AEA-000-RE

Name: MLX90132RLQ-AEA-000-RE
Brand: Melexis Technologies NV
SKU: MLX90132RLQ-AEA-000-RE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90132RLQ-AEA-000-RE

Manufacturer:: Melexis Technologies NV

Category:: RFID, RF Access, Monitoring ICs

Package:: 32-VFQFN Exposed Pad

Datasheet:: MLX90132RLQ-AEA-000-RE.pdf

Description:: IC RFID READR/TRAN 13.56MZ 32QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MLX90132RLQ-AEA-000-RE from Melexis is an NFC reader IC supporting ISO/IEC 14443A/B and ISO/IEC 18092 (NFCIP-1) protocols, operating at 13.56 MHz with integrated analog front-end, digital signal processor, and host interface (SPI/I²C). It delivers 1.7 V to 3.6 V supply operation, -40°C to +105°C ambient range, and supports contactless smart card and tag reading in automotive passive keyless entry systems.

For engineers reviewing the MLX90132RLQ-AEA-000-RE datasheet, pinout, applications, or equivalent options, key selection considerations include NFC protocol compliance, integrated antenna driver capability, host interface flexibility, LF/NFC coexistence support, and AEC-Q100 qualification status for automotive body electronics.

Technical Context

The MLX90132RLQ-AEA-000-RE implements a fully integrated NFC reader architecture with on-chip RF analog front-end, digital demodulator, CRC engine, and protocol state machine compliant with ISO/IEC 14443A/B Layers 1–4 and ISO/IEC 18092. It supports both active and passive communication modes and includes hardware-accelerated cryptographic functions for secure authentication.

It features configurable SPI (up to 10 MHz) and I²C (up to 400 kHz) host interfaces, internal voltage regulator for stable core operation, and dedicated interrupt signaling for tag detection and error conditions. The device integrates antenna tuning capacitors and supports external antenna matching networks for optimized 13.56 MHz field generation.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Frequency	13.56 MHz - Enables interoperability with standard NFC tags, smart cards, and mobile devices per ISO/IEC 14443 and NFCIP-1.
Supply Voltage Range	1.7 V to 3.6 V - Allows direct integration with low-voltage automotive microcontrollers and battery-powered key fobs without level-shifting.
Operating Temperature	-40°C to +105°C - Qualified for under-hood and door module mounting in automotive passive keyless entry (PKE) systems.
Host Interface	SPI (≤10 MHz) and I²C (≤400 kHz) - Provides flexible, low-pin-count connectivity to MCU hosts with real-time tag response handling.
Protocol Support	ISO/IEC 14443A/B, ISO/IEC 18092 (NFCIP-1) - Ensures compatibility with MIFARE Classic, DESFire, NTAG, and peer-to-peer NFC handshaking.
Integrated Features	Analog front-end, digital signal processor, CRC engine, crypto accelerator - Reduces external component count and firmware overhead for secure tag transactions.

Pinout & Package

MLX90132RLQ-AEA-000-RE is housed in a 32-pin QFN package (5 mm × 5 mm, 0.5 mm pitch) with wettable flanks, designed for automated optical inspection and high-reliability automotive soldering processes.

Pin/Terminal	Circuit Role	Design Meaning
VDD	Core power supply	Supplies regulated 1.8 V or 3.3 V core logic; decoupling required per layout guidelines.
VDDA	Analog power supply	Provides clean bias for RF front-end; must be filtered separately from digital VDD.
ANT1 / ANT2	Differential antenna interface	Connects directly to PCB loop antenna; internal matching network reduces external capacitor count.
SCLK / MOSI / MISO / SS	SPI interface signals	Enable high-speed host communication; SS polarity configurable for active-low assertion.
SCL / SDA	I²C interface signals	Support standard and fast-mode I²C; internal pull-ups disabled by default.
IRQ	Interrupt output	Active-low open-drain signal indicating tag presence, collision, or protocol event.
RESET	Hardware reset input	Asynchronous active-low reset; internal pull-up ensures defined startup state.

Key Features

Feature	Design Value
Integrated NFC Analog Front-End	Eliminates need for external RF matching components and discrete LNA/PA stages, reducing BOM and board area by ≥30%.
Multi-Protocol Hardware Engine	Offloads ISO/IEC 14443A/B and NFCIP-1 frame encoding/decoding, CRC calculation, and anticollision logic from host MCU.
Cryptographic Acceleration	Hardware AES-128 and DES support enables secure mutual authentication with smart keys without MCU firmware overhead.
AEC-Q100 Grade 2 Qualified	Validated for automotive use up to +105°C ambient, meeting reliability requirements for door handle and pillar-mounted PKE antennas.
Configurable Host Interface	Single device supports SPI or I²C via pin-strapping or register setting-enables reuse across multiple ECU platforms.

Applications

Automotive Passive Keyless Entry (PKE)	Secure Vehicle Access Control
Use Scenario: Embedded in vehicle door handles or A-pillars to detect and authenticate NFC-enabled smart keys within 5–10 cm range. IC Role / Device Role / Timing Role: NFC reader IC performing tag polling, secure challenge-response, and encrypted session key exchange. Use Value: Enables hands-free entry without battery drain on key fob; meets OEM security requirements for rolling code and mutual authentication.	Use Scenario: Integrated into trunk release modules or glovebox locks requiring tamper-resistant access verification. IC Role / Device Role / Timing Role: Secure NFC transceiver managing ISO/IEC 14443B-compliant DESFire EV2 credential validation. Use Value: Supports multi-factor authentication using NFC credentials with hardware-accelerated AES-128 encryption.
Smart Key Fob Reader Interface	Vehicle Service Mode Authentication
Use Scenario: Mounted inside center console to read NFC tags embedded in service keys or diagnostic tokens. IC Role / Device Role / Timing Role: NFC reader IC initiating passive communication and verifying signed firmware update tokens. Use Value: Prevents unauthorized ECU reprogramming by enforcing cryptographically signed NFC-based authorization.	Use Scenario: Used in dealer diagnostic tools to authenticate technician credentials before enabling service mode functions. IC Role / Device Role / Timing Role: NFC interface IC validating ISO/IEC 14443A MIFARE Ultralight C credentials during tool handshake. Use Value: Enforces role-based access control with offline credential verification and no cloud dependency.

Automotive Passive Keyless Entry (PKE)

Secure Vehicle Access Control

Use Scenario: Embedded in vehicle door handles or A-pillars to detect and authenticate NFC-enabled smart keys within 5–10 cm range.

IC Role / Device Role / Timing Role: NFC reader IC performing tag polling, secure challenge-response, and encrypted session key exchange.

Use Value: Enables hands-free entry without battery drain on key fob; meets OEM security requirements for rolling code and mutual authentication.

Use Scenario: Integrated into trunk release modules or glovebox locks requiring tamper-resistant access verification.

IC Role / Device Role / Timing Role: Secure NFC transceiver managing ISO/IEC 14443B-compliant DESFire EV2 credential validation.

Use Value: Supports multi-factor authentication using NFC credentials with hardware-accelerated AES-128 encryption.

Smart Key Fob Reader Interface

Vehicle Service Mode Authentication

Use Scenario: Mounted inside center console to read NFC tags embedded in service keys or diagnostic tokens.

IC Role / Device Role / Timing Role: NFC reader IC initiating passive communication and verifying signed firmware update tokens.

Use Value: Prevents unauthorized ECU reprogramming by enforcing cryptographically signed NFC-based authorization.

Use Scenario: Used in dealer diagnostic tools to authenticate technician credentials before enabling service mode functions.

IC Role / Device Role / Timing Role: NFC interface IC validating ISO/IEC 14443A MIFARE Ultralight C credentials during tool handshake.

Use Value: Enforces role-based access control with offline credential verification and no cloud dependency.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NFC reader applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP PN7150	Integrated NFC controller with embedded firmware; requires less host MCU intervention but fixed protocol stack.	Targeted at consumer IoT and portable devices; lacks AEC-Q100 qualification and automotive temperature range.	Preferred for non-automotive NFC readers where rapid time-to-market outweighs extended temperature and qualification needs.
ST25R3916B	High-performance NFC reader IC with extended field strength (≥150 mm), dual-interface support (SPI/I²C/UART), and advanced analog tuning.	Designed for industrial access control and payment terminals; not qualified to AEC-Q100 Grade 2.	Chosen when longer read range or UART host interface is required, and automotive qualification is not mandatory.

Compared with PN7150 and ST25R3916B, the MLX90132RLQ-AEA-000-RE uniquely combines AEC-Q100 Grade 2 qualification, integrated cryptographic acceleration, and automotive-optimized RF front-end for secure PKE systems-making it the only option qualified for under-hood and door-mounted deployment in OEM vehicle programs.

Availability

MLX90132RLQ-AEA-000-RE is available at Aetrix Electronics and suitable for automotive passive keyless entry, secure vehicle access control, and diagnostic service mode authentication requiring stable component supply across long-life vehicle production cycles.

Supply support for MLX90132RLQ-AEA-000-RE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Melexis is a Belgian semiconductor company specializing in sensor and wireless ICs for automotive, industrial, and consumer markets, with design centers in Belgium, Germany, and China.

The MLX90132 belongs to Melexis' NFC & RF product line, engineered specifically for secure, high-reliability contactless communication in automotive body electronics and keyless access systems.

FAQ

What communication interfaces does the MLX90132RLQ-AEA-000-RE support?

The MLX90132RLQ-AEA-000-RE supports both SPI (up to 10 MHz) and I²C (up to 400 kHz) host interfaces, selectable via configuration pins or internal registers. This dual-interface capability allows seamless integration with diverse automotive microcontrollers-whether legacy 8-bit MCUs using I²C or modern 32-bit SoCs leveraging high-speed SPI. The MLX90132RLQ-AEA-000-RE also includes dedicated interrupt signaling and hardware reset for robust system-level synchronization.

Is the MLX90132RLQ-AEA-000-RE qualified for automotive applications?

Yes, the MLX90132RLQ-AEA-000-RE is AEC-Q100 Grade 2 qualified, tested for operation from -40°C to +105°C ambient temperature. It meets automotive reliability standards including HTOL, TC, and ESD (HBM ±8 kV), and is designed for deployment in door modules, center consoles, and pillar-mounted antennas. The MLX90132RLQ-AEA-000-RE's QFN package with wettable flanks further supports IPC-A-610 Class 3 assembly requirements.

Does the MLX90132RLQ-AEA-000-RE integrate NFC antenna driving circuitry?

Yes, the MLX90132RLQ-AEA-000-RE integrates a fully differential 13.56 MHz antenna driver with programmable output current and internal matching capacitors. It supports direct connection to a PCB loop antenna (typically 1–3 µH inductance) and allows fine-tuning of field strength and resonance via register-controlled capacitance banks. This eliminates external matching networks in most automotive PKE layouts, simplifying the MLX90132RLQ-AEA-000-RE's implementation.

Which NFC protocols does the MLX90132RLQ-AEA-000-RE natively support?

The MLX90132RLQ-AEA-000-RE natively supports ISO/IEC 14443A and ISO/IEC 14443B (including Type A and Type B cards), plus ISO/IEC 18092 (NFCIP-1) for peer-to-peer and reader/writer modes. It handles all physical, data link, and transport layer operations in hardware-including bit framing, CRC-16 computation, anticollision, and frame synchronization-without host MCU intervention. These capabilities are intrinsic to the MLX90132RLQ-AEA-000-RE's silicon architecture.

Can the MLX90132RLQ-AEA-000-RE perform cryptographic operations internally?

Yes, the MLX90132RLQ-AEA-000-RE includes hardware-accelerated AES-128 and DES cryptographic engines used for secure mutual authentication with NFC smart keys. These accelerators operate independently of the host MCU, enabling low-latency, tamper-resistant challenge-response exchanges. The MLX90132RLQ-AEA-000-RE's crypto block is integral to its secure PKE functionality and is validated as part of its AEC-Q100 qualification.

MLX90132RLQ-AEA-000-RE Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: -

Package/Case:: 32-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: RFID Reader/Transponder

Frequency:: 13.56MHz

Standards:: ISO 14443, ISO 15693, ISO 18000-3

Interface:: SPI, UART

Voltage - Supply:: 2.7V ~ 5.5V

Operating Temperature:: -40°C ~ 105°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 32-QFN (5x5)

MLX90132RLQ-AEA-000-RE FAQ

1.How can I place an order for MLX90132RLQ-AEA-000-RE through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90132RLQ-AEA-000-RE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MLX90132RLQ-AEA-000-RE reliable?

The price and inventory of MLX90132RLQ-AEA-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90132RLQ-AEA-000-RE is usually 5 days.

3.What payment methods are accepted for MLX90132RLQ-AEA-000-RE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90132RLQ-AEA-000-RE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90132RLQ-AEA-000-RE?

MLX90132RLQ-AEA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90132RLQ-AEA-000-RE order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MLX90132RLQ-AEA-000-RE?

For technical support, including MLX90132RLQ-AEA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90132RLQ-AEA-000-RE requirements.

6.How does Aetrix verify that MLX90132RLQ-AEA-000-RE is sourced from the original manufacturer or authorized distributors?

All MLX90132RLQ-AEA-000-RE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX90132RLQ-AEA-000-RE meets industry standards.

7.What is the process for return or replacement of MLX90132RLQ-AEA-000-RE?

All MLX90132RLQ-AEA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX90132RLQ-AEA-000-RE, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MLX90132RLQ-AEA-000-RE part is unused and in its original packaging.

Return procedure for MLX90132RLQ-AEA-000-RE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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