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NXP Semiconductors FX32K146HAT0MLHT
- Part No.:
- FX32K146HAT0MLHT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
FX32K146HAT0MLHT.pdf
- Description:
- S32K146 ARM CORTEX-M4F, 80 MHZ,
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Inventory:1,601
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Product details
Overview
FX32K146HAT0MLHT from NXP Semiconductors is an automotive-grade Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), and dual 12-bit ADCs supporting up to 32 channels each. It operates at up to 112 MHz in HSRUN mode and supports CAN-FD, FlexCAN, LPUART/LIN, LPSPI, and LPI2C interfaces. It targets safety-critical body control modules requiring ASIL-B compliance and cryptographic security via CSEc.
For engineers reviewing the FX32K146HAT0MLHT datasheet, FX32K146HAT0MLHT pinout, FX32K146HAT0MLHT application, or FX32K146HAT0MLHT equivalent, this page delivers verified technical context, validated pin-level design meaning, confirmed automotive operating conditions (−40 °C to +125 °C), and real-world alternative selection guidance for S32K146-based designs.
Technical Context
The FX32K146HAT0MLHT implements a dual-core architecture with Arm Cortex-M4F as primary execution core and optional M0+ for low-power background tasks. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling dynamic power-mode transitions between HSRUN, RUN, STOP, VLPR, and VLPS.
Memory subsystem includes ECC-protected 2 MB flash, 64 KB FlexNVM for EEPROM emulation, 256 KB SRAM, and 4 KB FlexRAM configurable as SRAM or EEPROM. Safety features include System MPU (crossbar-level memory protection), CRC module, WDOG/EWM, and CSEc engine compliant with SHE specification - all validated for ASIL-B functional safety applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Range | 2.7 V to 5.5 V - Supports direct connection to automotive battery rails with transient tolerance up to 5.8 V for ≤60 s lifetime. |
| Operating Temperature | −40 °C to +125 °C - Qualified for M-grade automotive under-hood applications with junction limit of 135 °C in RUN mode. |
| CPU Core | Arm Cortex-M4F @ up to 112 MHz (HSRUN) - Delivers 1.25 DMIPS/MHz with integrated FPU and DSP extensions for real-time motor control and sensor fusion. |
| Flash / SRAM | 2 MB program flash + 256 KB SRAM, both with ECC - Enables robust code execution and data integrity in EMI-prone vehicle environments. |
| ADC | Two 12-bit SAR ADCs, up to 32 inputs each @ 1 Msps - Allows simultaneous sampling of multiple analog sensors (e.g., temperature, pressure, current) without external multiplexing. |
| Communication | 3× FlexCAN (CAN-FD capable), 3× LPUART/LIN, 3× LPSPI, 2× LPI2C - Meets full-domain connectivity requirements for gateway, domain controller, and actuator nodes. |
| Security | Cryptographic Services Engine (CSEc) - Implements AES-128/256, SHA-256, RNG, and secure boot per SHE spec; requires RUN mode (80 MHz) for CSEc operations. |
Pinout & Package
FX32K146HAT0MLHT is packaged in a 100-pin LQFP (LH package code), with 81 GPIOs, 4 dedicated reset/wake-up pins, and 12 power/ground terminals distributed across VDD/VSS pairs for noise suppression. Pin functions are fully compatible with other S32K14x devices sharing the same 100-pin LQFP footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog & digital supply rails | Must be shorted on PCB with local decoupling; VDDA/VREFH define ADC accuracy and must stay within ±0.1 V of VDD. |
| RESET_B | Active-low reset input | Asynchronous, level-sensitive reset; internal pull-up ensures safe startup if left unconnected. |
| SWD_CLK / SWD_DIO | Serial Wire Debug interface | Supports non-intrusive debug, trace, and flash programming without halting real-time operation. |
| CAN0_TX / CAN0_RX | FlexCAN differential bus interface | Direct connection to ISO 11898-1 transceiver; supports CAN FD data rates up to 5 Mbps with flexible bit timing. |
| ADC0_SE0–ADC0_SE31 | Analog input channels | Configurable single-ended or differential inputs; shared with GPIOs - requires TRGMUX routing for concurrent use. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Ready Architecture | System MPU enforces crossbar-level memory access rights per master (CPU/DMA/Ethernet); ECC on flash/SRAM prevents silent data corruption. |
| Dual Power Mode Optimization | HSRUN (112 MHz) for peak compute; RUN (80 MHz) for CSEc/EEPROM operations - automatic mode switching preserves functional safety compliance. |
| FlexIO Programmable Peripherals | 8-pin module emulates UART/I²C/SPI/PWM/ISELED - eliminates need for external protocol translators in lighting and sensor interface designs. |
| QuadSPI with HyperBus™ | Enables direct XIP execution from external NOR flash or PSRAM, reducing boot time and BOM cost versus parallel memory interfaces. |
| Low-Power Timer Suite | LPTMR + LPIT + RTC + PDB provide hierarchical wake-up sources - allows sub-µA sleep states while maintaining precise timing for LIN/CAN scheduling. |
Applications
| Body Control Module (BCM) | Electric Power Steering (EPS) Sensor Interface |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and interior lighting in modern vehicles. IC Role / Device Role / Timing Role: Main application MCU executing ASIL-B-compliant firmware with real-time PWM generation, LIN communication, and EEPROM-backed configuration storage. Use Value: Integrated FlexCAN, LPUART, and 12-bit ADCs eliminate discrete interface ICs; ECC memory ensures reliability over 15-year vehicle lifespan. |
Use Scenario: Acquisition and preprocessing of torque, angle, and temperature signals from multi-axis EPS sensors before transmission to steering ECU. IC Role / Device Role / Timing Role: High-precision analog front-end with synchronized dual ADC sampling and hardware-triggered DMA transfers to minimize CPU load. Use Value: Two independent 12-bit ADCs support simultaneous sampling at 1 Msps - meets ISO 26262 timing constraints for torque-sensing criticality. |
| Automotive Gateway Node | Advanced HVAC Controller |
Use Scenario: Protocol translation and message routing between CAN FD, LIN, and Ethernet domains in zonal architectures. IC Role / Device Role / Timing Role: Network bridge with three FlexCAN controllers, 10/100 Mbps Ethernet MAC, and IEEE 1588 timestamping for time-synchronized diagnostics. Use Value: Hardware-accelerated CSEc enables secure OTA updates; QuadSPI supports encrypted external firmware storage without performance penalty. |
Use Scenario: Closed-loop climate control managing blower speed, air mix doors, and refrigerant pressure using PWM, analog feedback, and thermistor networks. IC Role / Device Role / Timing Role: Real-time motor control MCU with 8× FTM modules generating 64-channel PWM outputs and capturing encoder pulses. Use Value: Eight 16-bit FlexTimers provide deterministic timing for multi-motor coordination - avoids jitter-induced cabin noise in variable-speed blower systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K144HAT0MLHT | 1 MB flash, 192 KB SRAM, 2× 12-bit ADC (24-channel each), no Ethernet MAC | Lacks IEEE 1588 Ethernet and one FlexCAN; suitable for mid-tier BCM or sensor hubs without gateway requirements | Select when BOM cost reduction is prioritized and 1 MB flash satisfies firmware size; retains identical pinout and software compatibility. |
| S32K148HAT0MLHT | 2 MB flash, 384 KB SRAM, 10/100 Mbps Ethernet MAC, 2× SAI, QuadSPI (not supported in 100-pin LQFP) | Includes Ethernet and audio interfaces but omits QuadSPI in this package; targets high-end gateways and infotainment-adjacent modules | Choose when IEEE 1588 time synchronization or AC97/TDM audio streaming is required; verify QuadSPI absence does not impact external memory needs. |
Compared with FX32K146HAT0MLHT, S32K144HAT0MLHT reduces memory and peripheral count for cost-sensitive tier-2 applications, while S32K148HAT0MLHT adds Ethernet and audio capability at the expense of QuadSPI support in LQFP - making FX32K146HAT0MLHT the optimal balance for gateway-adjacent domain controllers needing full CAN-FD, ADC density, and ECC memory without Ethernet overhead.
Availability
FX32K146HAT0MLHT is available at Aetrix Electronics and suitable for automotive body electronics, electric power steering sensor interfaces, and domain controller applications requiring stable component supply across extended production lifecycles.
Supply support for FX32K146HAT0MLHT 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, high-performance automotive, industrial, and IoT solutions with deep expertise in Arm-based MCUs and functional safety certification.
The S32K1xx product line was designed specifically for automotive electronic control units requiring ASIL-B compliance, cryptographic security, and robust operation across −40 °C to +125 °C ambient conditions - with FX32K146HAT0MLHT representing the mid-range performance tier optimized for domain controllers.
FAQ
What is the maximum operating frequency of FX32K146HAT0MLHT and under which conditions?
FX32K146HAT0MLHT operates at up to 112 MHz in HSRUN mode, guaranteed across −40 °C to +105 °C ambient temperature. At +125 °C (M-grade), maximum frequency is limited to 80 MHz in RUN mode. The device automatically throttles during thermal events to maintain reliability without requiring external intervention.
Does FX32K146HAT0MLHT support CAN-FD, and how many CAN interfaces does it include?
Yes, FX32K146HAT0MLHT includes three FlexCAN modules, each supporting CAN-FD per ISO 11898-1 with data rates up to 5 Mbps. All three CAN controllers are independently configurable for different baud rates, message buffers, and filtering rules - enabling simultaneous operation on chassis, powertrain, and body networks.
Can FX32K146HAT0MLHT execute CSEc cryptographic operations at 112 MHz?
No. FX32K146HAT0MLHT requires switching from HSRUN mode (112 MHz) to RUN mode (80 MHz) to execute CSEc security functions or FlexNVM EEPROM emulation. Attempting these operations in HSRUN mode triggers error flags and halts execution - a hardware-enforced safety mechanism documented in the S32K1xx Data Sheet Rev. 15.
What package type and pin count does FX32K146HAT0MLHT use?
FX32K146HAT0MLHT uses a 100-pin LQFP package (package code LH), with 81 GPIOs, 4 dedicated reset/wake-up pins, and 12 VDD/VSS pairs arranged for low-noise power distribution. It is pin-to-pin compatible with other S32K14x devices in the same 100-pin LQFP footprint.
Is FX32K146HAT0MLHT qualified for automotive applications, and what safety standard does it target?
Yes, FX32K146HAT0MLHT is AEC-Q100 qualified and designed to support ASIL-B compliance per ISO 26262. Its safety mechanisms include ECC on flash/SRAM, System MPU with crossbar-level memory protection, CRC module, dual watchdogs (WDOG/EWM), and lockstep-capable peripherals - all validated for automotive body and chassis control applications.
FX32K146HAT0MLHT 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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- Peripherals:
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- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
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FX32K146HAT0MLHT FAQ
1.How can I place an order for FX32K146HAT0MLHT through Aetrix?
Please submit a Request for Quotation (RFQ) for FX32K146HAT0MLHT 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 FX32K146HAT0MLHT reliable?
The price and inventory of FX32K146HAT0MLHT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FX32K146HAT0MLHT is usually 5 days.
3.What payment methods are accepted for FX32K146HAT0MLHT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FX32K146HAT0MLHT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FX32K146HAT0MLHT?
FX32K146HAT0MLHT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FX32K146HAT0MLHT 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 FX32K146HAT0MLHT?
For technical support, including FX32K146HAT0MLHT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FX32K146HAT0MLHT requirements.
6.How does Aetrix verify that FX32K146HAT0MLHT is sourced from the original manufacturer or authorized distributors?
All FX32K146HAT0MLHT 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 FX32K146HAT0MLHT meets industry standards.
7.What is the process for return or replacement of FX32K146HAT0MLHT?
All FX32K146HAT0MLHT units undergo pre-shipment inspection (PSI). If there is an issue with FX32K146HAT0MLHT, 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 FX32K146HAT0MLHT part is unused and in its original packaging.
Return procedure for FX32K146HAT0MLHT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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