NXP Semiconductors FS32K142WAT0WLHT

Overview

FS32K142WAT0WLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with HSRUN mode up to 112 MHz, 256 KB flash, 32 KB SRAM, and integrated CSEc security engine. It operates from 3.13 V to 5.5 V across −40 °C to +150 °C ambient, supporting CAN-FD, LPUART, LPSPI, and FlexIO in safety-critical vehicle control modules.

For engineers reviewing the FS32K142WAT0WLHT datasheet, FS32K142WAT0WLHT pinout, FS32K142WAT0WLHT application, or FS32K142WAT0WLHT equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing/security constraints - including mandatory RUN-mode execution for CSEc operations and EEPROM emulation.

Technical Context

The FS32K142WAT0WLHT implements a dual-core-capable architecture with Arm Cortex-M4F core (Armv7, Thumb-2 ISA), single-precision FPU, and configurable NVIC. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise low-power timing via LPIT, LPTMR, and RTC.

Power management includes five modes (HSRUN, RUN, STOP, VLPR, VLPS) with PMC-controlled clock gating; memory protection uses NXP's system MPU at crossbar level-not Arm Core MPU-enforcing access rights per master (Core, DMA, Ethernet) to protected regions. CSEc cryptographic operations and FlexNVM writes require explicit transition from HSRUN (112 MHz) to RUN (80 MHz) mode.

Key Specifications

Pinout & Package

FS32K142WAT0WLHT is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the S32K14xW family layout; all 64 pins are electrically defined and functionally validated per S32K1xx Reference Manual IO Signal Description sheets.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K142WAT0WLHT, FS32K144WAT0WLHT offers expanded memory and peripheral count for scalable designs, while FS32K142MAT0WLHT trades thermal grade for broader voltage tolerance - both share identical pinout and software compatibility, enabling reuse of driver stacks and PCB layouts.

Availability

FS32K142WAT0WLHT is available at Aetrix Electronics and suitable for engine control units, electric power steering modules, ADAS sensor hubs, and vehicle gateway controllers requiring stable component supply across extended automotive lifecycles.

Supply support for FS32K142WAT0WLHT 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 ASIL-certified microcontrollers and hardware security engines.

The S32K1xx family - including FS32K142WAT0WLHT - was designed specifically for automotive electronic control units requiring functional safety (ISO 26262), security (SHE/CSEc), and real-time performance in extreme temperature environments.

FAQ

What is the maximum operating temperature for FS32K142WAT0WLHT?

The FS32K142WAT0WLHT is qualified for ambient operation from −40 °C to +150 °C, making it suitable for under-hood automotive applications such as engine control and transmission modules. This rating applies in RUN mode at ≤80 MHz; junction temperature is limited to 170 °C under these conditions per the S32K14xW datasheet thermal specifications.

Does FS32K142WAT0WLHT support CAN-FD?

Yes, FS32K142WAT0WLHT includes one FlexCAN module with optional CAN-FD support per the S32K14xW feature comparison table. It supports ISO 11898-1 CAN FD up to 5 Mbps and is compatible with standard CAN transceivers. The device requires external transceiver hardware and proper PCB layout for bus termination and ESD protection.

Why must CSEc operations be executed in RUN mode instead of HSRUN mode on FS32K142WAT0WLHT?

FS32K142WAT0WLHT triggers error flags during CSEc (Cryptographic Services Engine) execution or EEPROM writes/erase when operating in HSRUN mode (112 MHz). This restriction is enforced by hardware to maintain timing integrity and prevent conflicts with high-speed memory access. The device must switch to RUN mode (80 MHz) to safely execute security operations - a requirement explicitly documented in the S32K1xx datasheet Rev. 15.

What package type and pin count does FS32K142WAT0WLHT use?

FS32K142WAT0WLHT uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. This package is pin-to-pin compatible with other S32K14xW devices in the same footprint, including FS32K144WAT0WLHT, enabling scalable design reuse across memory/peripheral variants without PCB redesign.

Is FS32K142WAT0WLHT compatible with NXP S32 Design Studio?

Yes, FS32K142WAT0WLHT is fully supported by NXP S32 Design Studio, including GCC toolchain, SDK libraries, configuration tools (S32 Configuration Tool), and debug integration via SWD. The device is also compatible with IAR Embedded Workbench and Arm Keil MDK, as confirmed in the S32K1xx datasheet ecosystem section and official NXP documentation.