NXP Semiconductors FS32K148UJT0VLUR

Overview

FS32K148UJT0VLUR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), and support for HSRUN mode at 112 MHz. It integrates FlexCAN with CAN-FD, 10/100 Mbps Ethernet with IEEE 1588, dual 12-bit ADCs (1 Msps), CSEc security engine, and operates from −40 °C to +105 °C. It targets body control modules, gateway ECUs, and advanced driver assistance systems requiring functional safety up to ASIL-B.

For engineers reviewing the FS32K148UJT0VLUR datasheet, FS32K148UJT0VLUR pinout, FS32K148UJT0VLUR application, or FS32K148UJT0VLUR equivalent, this page delivers verified technical context, validated pin-level functionality, confirmed safety and security features (CSEc, MPU, ECC), real-world automotive use cases, and two rigorously cross-checked alternative parts - all grounded in NXP's official S32K1xx Rev. 15 datasheet and orderable part number list.

Technical Context

The FS32K148UJT0VLUR implements a dual-core architecture with Arm Cortex-M4F as primary execution core (112 MHz HSRUN / 80 MHz RUN) and optional 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 signal-chain requirements: three FlexCAN modules (all supporting CAN-FD), one 10/100 Mbps Ethernet MAC with IEEE 1588 timestamping, two SAI interfaces, QuadSPI with HyperBus™ support, and safety-critical timers including eight FTM modules (64 channels), LPIT, LPTMR, and RTC. Power management supports five modes (HSRUN, RUN, STOP, VLPR, VLPS), with explicit mode-switching constraints for CSEc and EEPROM operations.

Key Specifications

Pinout & Package

FS32K148UJT0VLUR is packaged in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with fully validated pin mapping per NXP's S32K1xx IO Signal Description multiplexing sheets. All pins support 5 V-tolerant digital I/O, configurable pull-ups/pull-downs, and interrupt capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive MCU applications.

Compared with FS32K148UJT0VLUR, S32K146UJT0VLUR removes Ethernet/SAI to reduce cost and die size while retaining CAN-FD and safety features, whereas S32K148UJT0MLUR extends thermal qualification to 125 °C at the expense of maximum clock frequency in extreme conditions - both serve distinct automotive deployment profiles without compromising ASIL-B readiness.

Availability

FS32K148UJT0VLUR is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, and ADAS sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified assurance.

Supply support for FS32K148UJT0VLUR 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-grade MCU design.

The S32K1xx family - including FS32K148UJT0VLUR - was engineered specifically for automotive electronic control units demanding ASIL-B compliance, CAN-FD networking, and scalable performance from entry-level to high-end domain controllers.

FAQ

What is the maximum operating frequency of the FS32K148UJT0VLUR and under what conditions?

The FS32K148UJT0VLUR achieves 112 MHz in HSRUN mode, but only when ambient temperature remains ≤105 °C and supply voltage is ≥2.97 V. For CSEc cryptographic operations or EEPROM writes, the device must drop to RUN mode at 80 MHz - a hardware-enforced constraint documented in the S32K1xx datasheet Rev. 15 Section 1.1 and Figure 3 feature comparison table.

Does the FS32K148UJT0VLUR support CAN-FD, and how many instances are available?

Yes, the FS32K148UJT0VLUR integrates three independent FlexCAN modules, all supporting CAN-FD (ISO 11898-1) with data rates up to 5 Mbps. This is confirmed in the "Features comparison" section (Figure 3) and "Communications interfaces" subsection of the S32K1xx datasheet Rev. 15, enabling multi-domain vehicle networking without external CAN controllers.

What safety and security features does the FS32K148UJT0VLUR include for ASIL-B compliance?

The FS32K148UJT0VLUR includes ECC on flash and SRAM, NXP's system-level MPU at the AXBS-Lite crossbar, CRC module, dual watchdogs (WDOG and EWM), and CSEc cryptographic engine compliant with SHE. These features collectively satisfy ASIL-B requirements per ISO 26262, as detailed in Sections 1.1 (Safety and security) and 3.1 (Feature comparison) of the official datasheet.

Is the FS32K148UJT0VLUR pin-compatible with other S32K1xx devices in the same package?

Yes - all S32K1xx devices sharing the 100-pin LQFP package (e.g., S32K144UJT0VLUR, S32K146UJT0VLUR) are pin-to-pin compatible per Figure 3 footnote ("All devices which share a common package are pin-to-pin compatible") and the IO Signal Description multiplexing documentation referenced in the S32K1xx datasheet Rev. 15 Section 3.1.

What development tools and IDEs are officially supported for the FS32K148UJT0VLUR?

NXP officially supports FS32K148UJT0VLUR with S32 Design Studio (GCC-based), IAR Embedded Workbench, Green Hills MULTI, Arm Keil MDK, Lauterbach TRACE32, and iSystems winIDEA - as listed in the "Ecosystem" row of Figure 3 and Figure 4 in the S32K1xx datasheet Rev. 15, ensuring full debug, trace, and AUTOSAR stack compatibility.