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NXP Semiconductors FX32K146HAT0MLQT
- Part No.:
- FX32K146HAT0MLQT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
FX32K146HAT0MLQT.pdf
- Description:
- S32K146 ARM CORTEX-M4F, 80 MHZ,
- Quantity:
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Inventory:1,025
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Product details
Overview
FX32K146HAT0MLQT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), 112 MHz HSRUN/80 MHz RUN operation, and integrated CSEc security engine. It features dual 12-bit ADCs (up to 32 channels each), three FlexCAN modules (CAN-FD capable), and operates across -40 °C to +125 °C for engine control unit applications.
For engineers reviewing the FX32K146HAT0MLQT datasheet, FX32K146HAT0MLQT pinout, FX32K146HAT0MLQT application, or FX32K146HAT0MLQT equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options aligned with ISO 26262 ASIL-B requirements.
Technical Context
The FX32K146HAT0MLQT implements a dual-core architecture with Arm Cortex-M4F (primary) and Cortex-M0+ (auxiliary) execution units, supporting concurrent real-time control and safety monitoring. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable power modes including HSRUN, RUN, STOP, VLPR, and VLPS.
Memory subsystem includes ECC-protected 2 MB program flash, 64 KB FlexNVM for EEPROM emulation, 256 KB SRAM, and 4 KB FlexRAM usable as SRAM or EEPROM. Safety mechanisms include System MPU (crossbar-level memory protection), CRC module, WDOG/EWM watchdogs, and CSEc cryptographic engine compliant with SHE specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4F with Single Precision FPU and DSP extensions; enables floating-point math and signal processing in motor control loops. |
| Max Clock Frequency | 112 MHz in HSRUN mode (80 MHz in RUN mode); supports high-speed real-time response for powertrain timing-critical tasks. |
| Flash Memory | 2 MB with ECC; provides robust code storage for complex AUTOSAR-based ECU firmware with error detection/correction. |
| SRAM | 256 KB with ECC; ensures data integrity for runtime variables, stack, and safety-critical buffers in ASIL-B systems. |
| Operating Temperature | -40 °C to +125 °C (M-grade); qualified for under-hood automotive environments including engine control and transmission modules. |
| Security Engine | Cryptographic Services Engine (CSEc); implements SHE-compliant AES, SHA, RNG, and secure boot for firmware authentication and key management. |
| Analog Peripherals | Two 12-bit ADCs (up to 32 inputs each, 1 Msps); supports simultaneous sampling of multiple sensor signals (e.g., throttle position, coolant temp, O2). |
| Communication Interfaces | Three FlexCAN modules (CAN-FD capable), three LPSPI, two LPI2C, three LPUART/LIN; enables full vehicle network integration with legacy and next-gen protocols. |
Pinout & Package
FX32K146HAT0MLQT is packaged in a 100-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch, optimized for automotive PCB thermal management and mechanical reliability. Pinout conforms to S32K14x family standard layout, enabling compatibility across K142/K144/K146/K148 variants sharing same package footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Power supply and analog reference | Separate digital/analog domains with tight coupling required; decoupling per AN5032 ensures ADC accuracy and noise immunity. |
| PTA0–PTA31, PTB0–PTB31, etc. | GPIO / peripheral multiplexing | Up to 156 GPIOs with interrupt capability; pins support flexible remapping via IOMUX for routing CAN, SPI, ADC, or PWM signals to available pads. |
| CAN0_TX / CAN0_RX | FlexCAN differential interface | Direct connection to external CAN transceiver; supports ISO 11898-1 physical layer and CAN-FD data rates up to 5 Mbps. |
| ADC0_SE0–ADC0_SE31 | Analog input channels | 32 dedicated single-ended inputs per ADC module; supports simultaneous sampling for multi-sensor fusion in closed-loop control. |
| JTAG_TMS / SWD_DIO | Debug interface | Serial Wire Debug (SWD) and JTAG support non-intrusive debugging, trace, and flash programming during development and field diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| ECC on Flash & SRAM | Hardware-implemented error correction prevents silent data corruption in safety-critical code and runtime data storage. |
| System MPU (Crossbar) | Enforces memory access rights per master (CPU, DMA, Ethernet), isolating safety and non-safety partitions without Arm core MPU dependency. |
| CSEc Security Engine | Offloads cryptographic operations (AES-128/256, SHA-256, RNG) from main CPU, enabling secure boot and OTA updates without performance penalty. |
| Flexible Power Modes | HSRUN/RUN/STOP/VLPR/VLPS modes allow dynamic trade-off between latency, current draw, and wake-up time for battery-sensitive modules like body controllers. |
| FlexIO Module | Configurable logic blocks emulate UART, I²C, SPI, LIN, PWM, or custom protocols-reducing BOM count when interfacing legacy sensors or actuators. |
| QuadSPI with HyperBus™ | Supports external XIP-capable flash memory at up to 133 MHz, expanding code space beyond internal 2 MB while maintaining deterministic execution timing. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection, and exhaust gas recirculation control in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary controller executing AUTOSAR OS, managing CAN FD communication with other ECUs, and sampling crankshaft/camshaft position sensors at sub-microsecond resolution. Use Value: 112 MHz HSRUN mode enables <1 µs loop execution for spark/fuel timing; ECC memory ensures functional safety compliance under electromagnetic interference. | Use Scenario: Aggregating radar, camera, and ultrasonic sensor data for object detection and path planning in Level 2+ ADAS. IC Role / Device Role / Timing Role: Central sensor fusion hub running real-time OS, preprocessing raw ADC/SPI data, and transmitting fused results over CAN FD or Ethernet to domain controller. Use Value: Dual 12-bit ADCs sample multi-channel radar IF signals simultaneously; FlexCAN and Ethernet interfaces enable low-latency, high-bandwidth sensor networking. |
| Electric Power Steering (EPS) Controller | Vehicle Gateway Module |
Use Scenario: Closed-loop torque assist control using motor current, steering angle, and vehicle speed feedback. IC Role / Device Role / Timing Role: Safety-certified MCU executing ASIL-B motor control algorithms, monitoring fault conditions via CSEc-secured diagnostics, and communicating with body domain over LIN/CAN. Use Value: CSEc enables secure firmware updates and tamper-proof logging; 80 MHz RUN mode provides deterministic PWM generation for 20 kHz motor drive switching. | Use Scenario: Protocol translation and firewalling between high-speed backbone (Ethernet) and legacy domains (CAN, LIN, FlexRay). IC Role / Device Role / Timing Role: Gateway processor managing message routing, filtering, and security enforcement between infotainment, ADAS, and powertrain networks. Use Value: Three FlexCAN modules handle concurrent CAN FD traffic; 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping synchronizes distributed sensor clocks across domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K144HAT0MLQT | 1 MB flash, 192 KB SRAM, same 100-pin LQFP package and pinout; lacks second ADC module and one FlexCAN channel. | Suitable for cost-optimized ECUs where reduced memory and peripheral count meet functional safety requirements. | Select when application firmware fits within 1 MB flash and only two FlexCAN buses are needed. |
| S32K148HAT0MLQT | 2 MB flash, 384 KB SRAM, adds 10/100 Mbps Ethernet MAC and two SAI audio interfaces; same 100-pin LQFP package. | Required for gateway or domain controller roles needing Ethernet backhaul and audio streaming capabilities. | Choose when IEEE 1588 time synchronization or AC97/TDM audio interface is mandatory. |
Compared with S32K144HAT0MLQT, FX32K146HAT0MLQT delivers higher memory capacity and dual ADC support for enhanced sensor processing; versus S32K148HAT0MLQT, it omits Ethernet and SAI to reduce cost and power while retaining full CAN-FD and safety feature set for mid-tier automotive control.
Availability
FX32K146HAT0MLQT is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, advanced driver assistance sensor hubs, and vehicle gateway modules requiring stable component supply across automotive production lifecycles.
Supply support for FX32K146HAT0MLQT 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive qualification standards.
The S32K1xx series is designed specifically for automotive electronic control units demanding ASIL-B compliance, featuring integrated safety mechanisms, cryptographic security, and robust operation across extended temperature ranges.
FAQ
What is the maximum operating frequency of the FX32K146HAT0MLQT in HSRUN mode?
The FX32K146HAT0MLQT operates at up to 112 MHz in HSRUN mode, delivering high-performance real-time processing for time-critical automotive functions such as ignition timing and fuel injection control. This frequency is supported within the -40 °C to +125 °C ambient temperature range specified for M-grade devices, and FX32K146HAT0MLQT requires switching to 80 MHz RUN mode when executing CSEc security operations or EEPROM writes.
Does the FX32K146HAT0MLQT support CAN-FD communication?
Yes, the FX32K146HAT0MLQT integrates three FlexCAN modules, each supporting CAN-FD protocol with data rates up to 5 Mbps and extended payload capacity. These modules comply with ISO 11898-1 and support bit-rate switching, making FX32K146HAT0MLQT suitable for modern automotive networks requiring higher bandwidth than classical CAN.
What safety certifications apply to the FX32K146HAT0MLQT?
The FX32K146HAT0MLQT is designed to support ISO 26262 ASIL-B compliance through hardware safety mechanisms including ECC on flash and SRAM, System MPU for memory partitioning, CRC module, dual watchdogs (WDOG/EWM), and lockstep-capable peripherals. FX32K146HAT0MLQT documentation includes FMEDA reports and safety manuals to aid functional safety analysis in automotive ECU development.
How does the CSEc security engine function in the FX32K146HAT0MLQT?
The CSEc (Cryptographic Services Engine) in FX32K146HAT0MLQT implements SHE-compliant cryptographic functions including AES-128/256 encryption/decryption, SHA-256 hashing, and true random number generation. It operates independently of the main CPU, enabling secure boot, firmware authentication, and OTA update signing without impacting real-time performance. FX32K146HAT0MLQT requires RUN mode (80 MHz) for CSEc execution, as HSRUN mode disables flash write/erase operations.
What package type and pin count does the FX32K146HAT0MLQT use?
The FX32K146HAT0MLQT uses a 100-pin LQFP package with 0.5 mm pitch, RoHS-compliant and lead-free. This package is pin-to-pin compatible with other S32K14x family members in the same footprint, including S32K144HAT0MLQT and S32K148HAT0MLQT, allowing scalable design reuse across product tiers while maintaining identical PCB layout and thermal characteristics.
FX32K146HAT0MLQT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
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- Core Size:
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- Speed:
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- Connectivity:
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- Peripherals:
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- Number of I/O:
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- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
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- Oscillator Type:
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- Operating Temperature:
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- Mounting Type:
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- Supplier Device Package:
FX32K146HAT0MLQT FAQ
1.How can I place an order for FX32K146HAT0MLQT through Aetrix?
Please submit a Request for Quotation (RFQ) for FX32K146HAT0MLQT 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 FX32K146HAT0MLQT reliable?
The price and inventory of FX32K146HAT0MLQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FX32K146HAT0MLQT is usually 5 days.
3.What payment methods are accepted for FX32K146HAT0MLQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FX32K146HAT0MLQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FX32K146HAT0MLQT?
FX32K146HAT0MLQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FX32K146HAT0MLQT 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 FX32K146HAT0MLQT?
For technical support, including FX32K146HAT0MLQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FX32K146HAT0MLQT requirements.
6.How does Aetrix verify that FX32K146HAT0MLQT is sourced from the original manufacturer or authorized distributors?
All FX32K146HAT0MLQT 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 FX32K146HAT0MLQT meets industry standards.
7.What is the process for return or replacement of FX32K146HAT0MLQT?
All FX32K146HAT0MLQT units undergo pre-shipment inspection (PSI). If there is an issue with FX32K146HAT0MLQT, 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 FX32K146HAT0MLQT part is unused and in its original packaging.
Return procedure for FX32K146HAT0MLQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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