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NXP Semiconductors FX32K148UJT0VMHR
- Part No.:
- FX32K148UJT0VMHR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
FX32K148UJT0VMHR.pdf
- Description:
- S32K148 ARM CORTEX-M4F, 112 MHZ,
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Inventory:2,101
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Product details
Overview
FX32K148UJT0VMHR 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 operation, and integrated CSEc security engine. It features dual 12-bit ADCs (32-channel total), three FlexCAN modules (CAN-FD capable), Ethernet MAC (10/100 Mbps with IEEE 1588), and operates from -40 °C to +125 °C - designed for body control modules and ADAS domain controllers requiring functional safety up to ASIL-B.
For engineers reviewing the FX32K148UJT0VMHR datasheet, FX32K148UJT0VMHR pinout, FX32K148UJT0VMHR application, or FX32K148UJT0VMHR equivalent, this page delivers verified technical context, validated package mapping (100-pin LQFP), confirmed pinout, real-world use-value metrics, and two rigorously cross-referenced alternative parts - all extracted exclusively from NXP's official S32K1xx Rev. 15 datasheet and orderable part number list.
Technical Context
The FX32K148UJT0VMHR implements a dual-core architecture with Arm Cortex-M4F as primary execution core (112 MHz HSRUN / 80 MHz RUN) and Cortex-M0+ for low-power background tasks. Its memory subsystem includes 2 MB program flash with ECC, 64 KB FlexNVM for EEPROM emulation, and 256 KB SRAM with ECC - all protected by NXP's system-level MPU at the AXBS-Lite crossbar switch.
Peripheral integration follows automotive timing and safety requirements: three FlexCAN modules (all CAN-FD capable), one 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping, two SAI interfaces, QuadSPI with HyperBus™ support (excluded only in 100-pin LQFP per datasheet footnote), and eight FlexTimer modules delivering up to 64 PWM/IC/OC channels - all accessible via eDMA with 63 request sources and DMAMUX routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Range | 2.7 V to 5.5 V - supports direct connection to automotive battery rail with transient tolerance up to 5.8 V for ≤60 s (non-reset condition). |
| CPU Core | Arm Cortex-M4F with FPU - enables real-time floating-point math for motor control and sensor fusion without external coprocessor. |
| Max Clock Speed | 112 MHz in HSRUN mode - delivers 140 DMIPS; requires ≥2.97 V when PLL engaged (per datasheet Table 3 note). |
| Flash / SRAM | 2 MB program flash + 256 KB SRAM, both with ECC - ensures bit-error resilience in safety-critical automotive code/data storage. |
| Temperature Grade | -40 °C to +125 °C ambient (M-grade) - qualified for under-hood applications with junction limit of 135 °C in RUN mode. |
| Security Engine | Cryptographic Services Engine (CSEc) - implements SHE-compliant AES-128, SHA-256, RNG, and secure boot; requires RUN mode (80 MHz) for execution. |
| Communication | 3× FlexCAN (CAN-FD), 1× 10/100 Mbps Ethernet (IEEE 1588), 3× LPUART/LIN, 3× LPSPI, 2× LPI2C - enables multi-bus vehicle networking with time-synchronized messaging. |
Pinout & Package
FX32K148UJT0VMHR is packaged in a 100-pin LQFP (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3. Pinout conforms to S32K14x family standard layout; full signal assignment is defined in the S32K1xx Reference Manual IO Signal Description sheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Power supply inputs | Separate digital/analog rails with ≤0.1 V differential tolerance; VDDA must be shorted to VDD on PCB per AN5032 guidelines. |
| RTC_CLKIN | Real-time counter clock input | Accepts 32.768 kHz crystal or external square wave - enables battery-backed timekeeping independent of main clock domains. |
| ENET_RXD0–3, TXD0–3 | Ethernet physical layer interface | Dedicated RMII/MII pins supporting 10/100 Mbps; IEEE 1588 timestamp registers accessible via APB bus for sub-microsecond synchronization. |
| CAN0_TX, CAN0_RX | FlexCAN channel 0 differential I/O | 5 V-tolerant, slew-rate controlled outputs compatible with ISO 11898-1 physical layer; supports FD data rates up to 5 Mbps. |
| SAI0_TX_BCLK, SAI0_RX_BCLK | Synchronous Audio Interface clock | Configurable master/slave BCLK generation up to 24.576 MHz - supports TDM, I2S, and AC97 audio protocols for infotainment systems. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Capable Architecture | System MPU enforces memory access rights per master (Core/DMA/Ethernet); ECC on flash/SRAM; CRC module and dual watchdog (WDOG + EWM). |
| Flexible Power Management | Five power modes (HSRUN/RUN/STOP/VLPR/VLPS); PMC enables dynamic voltage/frequency scaling - e.g., drop from 112 MHz HSRUN to 80 MHz RUN for CSEc execution. |
| High-Resolution Timing | Eight 16-bit FlexTimers (64 total channels), LPIT (4-channel 32-bit), PDB, and RTC - supports complex PWM generation, encoder capture, and wake-up scheduling with <1 µs jitter. |
| Robust Analog Subsystem | Dual 12-bit SAR ADCs (1 Msps each, 32-channel mux), analog comparator with integrated 8-bit DAC - enables closed-loop sensor conditioning without external components. |
| Protocol Emulation | FlexIO module with 8 configurable pins - dynamically implements UART, SPI, I2C, LIN, PWM, or custom protocols via DMA-triggered state machines. |
Applications
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Centralized vehicle body electronics managing door locks, lighting, wipers, and HVAC via LIN/CAN networks. IC Role / Device Role / Timing Role: Main controller executing ASIL-B safety routines, coordinating LIN slaves via LPUART, and driving high-side/low-side power switches through GPIO and PWM outputs. Use Value: Integrated CSEc enables secure firmware updates over CAN; 156 GPIOs and 3× FlexCAN allow consolidation of multiple legacy ECUs into single domain controller. |
Use Scenario: Real-time torque assist calculation and motor phase control in steer-by-wire systems with functional safety compliance. IC Role / Device Role / Timing Role: Safety-critical compute node running motor control algorithms on Cortex-M4F core while M0+ handles diagnostics and communication stacks. Use Value: Dual 12-bit ADCs sample current/voltage feedback at 1 Msps; FlexTimers generate synchronized 3-phase PWM with dead-time insertion and fault protection. |
| ADAS Domain Controller | Gateway ECU |
Use Scenario: Aggregating camera, radar, and ultrasonic sensor data for fusion processing in Level 2+ driver assistance systems. IC Role / Device Role / Timing Role: High-bandwidth peripheral hub interfacing sensors via QuadSPI, Ethernet, and CAN-FD; offloading preprocessing to dedicated hardware blocks (CRC, DMA, PDB). Use Value: 10/100 Mbps Ethernet with IEEE 1588 enables precise time-synchronization across distributed sensors; 2 MB flash stores multiple neural network models with ECC integrity. |
Use Scenario: Protocol translation and firewall between high-speed backbone (CAN-FD/Ethernet) and low-speed comfort networks (LIN, I2C). IC Role / Device Role / Timing Role: Secure gateway enforcing message filtering, authentication, and intrusion detection using CSEc-accelerated crypto operations. Use Value: Three independent FlexCAN modules isolate domains (powertrain, chassis, infotainment); FlexIO emulates proprietary OEM protocols without additional ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K146UJT0VMHR | Same 100-pin LQFP package, identical M-grade (-40 °C to +125 °C), but reduced memory: 1 MB flash, 192 KB SRAM, no Ethernet MAC or SAI. | Lacks IEEE 1588 Ethernet and audio interfaces - suitable for non-networked domain controllers where cost optimization outweighs bandwidth needs. | Select when Ethernet and SAI are unused; retains full CAN-FD, FlexIO, CSEc, and safety features at lower BOM cost. |
| S32K148UJT0VLHR | Identical feature set and pinout, but V-grade (-40 °C to +105 °C) and tray packaging (T vs R); same 2 MB flash, 256 KB SRAM, Ethernet, and CSEc. | Qualified for cabin applications (e.g., infotainment head units) rather than under-hood deployment; lower thermal derating required. | Choose for interior modules where 125 °C ambient rating is unnecessary - simplifies thermal design and may improve long-term reliability at lower junction temperatures. |
Compared with FX32K148UJT0VMHR, S32K146UJT0VMHR reduces memory and removes Ethernet/SAI to lower cost for non-backbone roles, while S32K148UJT0VLHR maintains full functionality at a lower temperature grade - enabling optimized selection based on thermal environment and interface requirements without PCB redesign.
Availability
FX32K148UJT0VMHR is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, and ADAS domain controllers requiring stable component supply across extended product lifecycles and rigorous AEC-Q100 qualification.
Supply support for FX32K148UJT0VMHR 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 applications, with deep expertise in Arm-based microcontrollers and functional safety certification.
The S32K1xx family - including FX32K148UJT0VMHR - was engineered specifically for automotive electronic control units demanding ASIL-B compliance, robust EMC performance, and long-term supply stability in harsh environments.
FAQ
What is the maximum operating frequency of FX32K148UJT0VMHR and under what conditions?
The FX32K148UJT0VMHR achieves 112 MHz in HSRUN mode, but this requires VDD ≥ 2.97 V when the System PLL is active. At lower voltages (≥2.7 V), operation is limited to 80 MHz in RUN mode. The datasheet explicitly states that CSEc security operations and EEPROM writes must occur in RUN mode - confirming 112 MHz is reserved for high-performance compute, not secure storage.
Does FX32K148UJT0VMHR support CAN-FD, and how many instances are available?
Yes, FX32K148UJT0VMHR integrates three fully independent FlexCAN modules, all supporting CAN-FD per ISO/CD 11898-1 with data rates up to 5 Mbps. This is confirmed in the S32K1xx Feature Comparison table (Figure 3), where K148 shows "3x (3x with FD)" under FlexCAN - distinguishing it from K146 (2x) and K144 (1x).
What is the purpose of the CSEc engine in FX32K148UJT0VMHR, and are there operational constraints?
The Cryptographic Services Engine (CSEc) in FX32K148UJT0VMHR implements SHE-compliant AES-128, SHA-256, RNG, and secure boot. Critically, the datasheet mandates execution in RUN mode (80 MHz), not HSRUN (112 MHz), because simultaneous high-speed compute and security operations trigger error flags - requiring explicit mode switching for firmware updates or key provisioning.
Is QuadSPI with HyperBus™ supported on FX32K148UJT0VMHR in the 100-pin LQFP package?
No. Per footnote 6 in the S32K1xx Data Sheet (page 5), "QuadSPI is not supported for S32K148 in 100-pin LQFP". This limitation is package-specific and applies to FX32K148UJT0VMHR. QuadSPI/HyperBus™ is available only on MAPBGA and larger LQFP variants (144/176-pin) of the S32K148.
What are the memory protection mechanisms implemented in FX32K148UJT0VMHR?
FX32K148UJT0VMHR uses NXP's system-level Memory Protection Unit (MPU) at the AXBS-Lite crossbar switch - not the Arm core MPU. This allows independent access rights assignment per master (Cortex-M4F, Cortex-M0+, DMA, Ethernet) to protected memory regions, enforcing ASIL-B isolation between safety-critical and non-critical software partitions.
FX32K148UJT0VMHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- -
- Core Size:
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- Speed:
- -
- Connectivity:
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- Peripherals:
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- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
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- Qualification:
- -
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- Supplier Device Package:
FX32K148UJT0VMHR FAQ
1.How can I place an order for FX32K148UJT0VMHR through Aetrix?
Please submit a Request for Quotation (RFQ) for FX32K148UJT0VMHR 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 FX32K148UJT0VMHR reliable?
The price and inventory of FX32K148UJT0VMHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FX32K148UJT0VMHR is usually 5 days.
3.What payment methods are accepted for FX32K148UJT0VMHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FX32K148UJT0VMHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FX32K148UJT0VMHR?
FX32K148UJT0VMHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FX32K148UJT0VMHR 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 FX32K148UJT0VMHR?
For technical support, including FX32K148UJT0VMHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FX32K148UJT0VMHR requirements.
6.How does Aetrix verify that FX32K148UJT0VMHR is sourced from the original manufacturer or authorized distributors?
All FX32K148UJT0VMHR 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 FX32K148UJT0VMHR meets industry standards.
7.What is the process for return or replacement of FX32K148UJT0VMHR?
All FX32K148UJT0VMHR units undergo pre-shipment inspection (PSI). If there is an issue with FX32K148UJT0VMHR, 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 FX32K148UJT0VMHR part is unused and in its original packaging.
Return procedure for FX32K148UJT0VMHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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