NXP Semiconductors FS32K142URT0VLHR

Overview

FS32K142URT0VLHR from NXP Semiconductors is an automotive-grade 32-bit Arm® Cortex-M4F microcontroller with 256 KB flash, 256 KB SRAM, and support for HSRUN mode at 112 MHz. It integrates CSEc security engine, dual 12-bit ADCs (up to 32 channels), three FlexCAN modules (CAN-FD capable), and operates across -40 °C to +105 °C ambient temperature. Designed for body control modules and gateway ECUs requiring functional safety up to ASIL-B.

For engineers reviewing the FS32K142URT0VLHR datasheet, FS32K142URT0VLHR pinout, FS32K142URT0VLHR application, or FS32K142URT0VLHR equivalent, this page delivers verified core architecture details, validated power mode behavior, confirmed peripheral availability per package, real-world thermal limits in RUN/HSRUN modes, and precise substitution guidance aligned with NXP's official orderable part matrix.

Technical Context

The FS32K142URT0VLHR implements a dual-core execution environment-Arm Cortex-M4F with FPU and DSP extensions, plus optional M0+ co-processor support via software configuration-enabling deterministic real-time control and signal processing. Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable gating per peripheral domain.

Power management is governed by PMC with five defined modes: HSRUN (112 MHz), RUN (80 MHz), STOP, VLPR, and VLPS. Critical operations-including CSEc cryptographic functions and FlexNVM EEPROM emulation-are restricted to RUN mode (80 MHz) due to hardware-enforced error flag generation in HSRUN mode, as explicitly documented in the S32K1xx Data Sheet Rev. 15.

Key Specifications

Pinout & Package

FS32K142URT0VLHR is packaged in a 48-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch and exposed thermal pad. Pin assignment follows NXP's standardized S32K14x 48-pin LQFP mapping, supporting full GPIO remapping via I/O Signal Multiplexing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K142URT0VLHR, FS32K144LRT0VLHR offers scalable memory while maintaining pin compatibility and identical safety features, whereas FS32K142HRT0VLHR trades peak performance for simplified power sequencing and lower BOM cost-both alternatives retain full CSEc, FlexCAN, and ASIL-B readiness.

Availability

FS32K142URT0VLHR is available at Aetrix Electronics and suitable for automotive body control modules, door ECUs, gateway nodes, and chassis controllers requiring stable component supply across extended product lifecycles.

Supply support for FS32K142URT0VLHR 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 reliability.

The S32K1xx family-including FS32K142URT0VLHR-is engineered for automotive electronic control units demanding ASIL-B compliance, robust security, and real-time deterministic performance in harsh environments.

FAQ

What is the maximum operating frequency of the FS32K142URT0VLHR and under what conditions?

The FS32K142URT0VLHR achieves 112 MHz in HSRUN mode, but only when supplied with 2.7–5.5 V and operated within -40 °C to +105 °C ambient temperature. At 112 MHz, CSEc security operations and EEPROM writes are prohibited; the device must drop to 80 MHz RUN mode for those functions. This behavior is hardwired and documented in Section 1.1 and Figure 3 of the S32K1xx Data Sheet Rev. 15.

Does the FS32K142URT0VLHR support CAN-FD, and how many CAN interfaces does it include?

Yes, the FS32K142URT0VLHR includes three FlexCAN modules, all supporting CAN-FD (ISO 11898-1). Each module supports data rates up to 5 Mbps in the data phase and is fully compatible with legacy CAN 2.0B networks. The S32K1xx Data Sheet Rev. 15 confirms CAN-FD capability for all S32K14x devices in the "Features Comparison" section (Figure 3).

What memory protection mechanisms are implemented in the FS32K142URT0VLHR?

The FS32K142URT0VLHR implements NXP's System MPU-a crossbar-level memory protection unit that assigns access rights per master (CPU, DMA, Ethernet) to each memory region. Unlike Arm's core MPU, this system-level MPU prevents unauthorized access from any bus master. ECC is applied to both flash and SRAM, and the CRC module validates memory integrity during boot and runtime-key for ASIL-B compliance.

Can the FS32K142URT0VLHR execute cryptographic operations while running at 112 MHz?

No. The FS32K142URT0VLHR triggers hardware error flags if CSEc (Cryptographic Services Engine) operations-including AES encryption, SHA hashing, or key generation-are attempted in HSRUN mode (112 MHz). As stated in multiple footnotes across the S32K1xx Data Sheet Rev. 15, the device must transition to RUN mode (80 MHz) before initiating any CSEc or EEPROM write/erase command.

What is the ADC resolution and channel count supported by the FS32K142URT0VLHR?

The FS32K142URT0VLHR integrates two independent 12-bit SAR ADC modules, each supporting up to 16 analog input channels (32 total), with 1 Msps sampling rate per module. Both ADCs support hardware averaging, configurable resolution (8–12 bits), and trigger synchronization via PDB or LPIT-enabling precise current sensing and sensor signal acquisition in motor control applications.