NXP Semiconductors FS32K142HFT0MLLT

Overview

FS32K142HFT0MLLT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 512 KB flash, 64 KB SRAM, and integrated CSEc security engine. It operates at up to 80 MHz in RUN mode, supports -40 °C to +125 °C ambient temperature, and features FlexCAN (with CAN-FD), LPUART/LIN, LPSPI, and 12-bit ADC - deployed in vehicle body control modules requiring ASIL-B compliance.

For engineers reviewing the FS32K142HFT0MLLT datasheet, FS32K142HFT0MLLT pinout, FS32K142HFT0MLLT application, or FS32K142HFT0MLLT 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 FS32K142HFT0MLLT implements a dual-core-capable architecture with Arm Cortex-M4F core (Thumb-2 ISA, single-precision FPU, DSP extensions) and configurable NVIC. Its clock system integrates SPLL (up to 80 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise low-power timing across HSRUN, RUN, STOP, VLPR, and VLPS modes.

Memory subsystem includes ECC-protected 512 KB program flash, 64 KB SRAM, 4 KB FlexRAM (configurable as SRAM or EEPROM emulation), and QuadSPI with HyperBus™ support. Safety features include System MPU (crossbar-level memory protection), CRC module, WDOG/EWM, and CSEc cryptographic engine compliant with SHE specification.

Key Specifications

Pinout & Package

FS32K142HFT0MLLT is housed in a 48-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), pin-compatible with other S32K14x devices in the same footprint. This package supports full I/O access for FlexCAN, LPUART, LPSPI, and GPIO while maintaining thermal performance for 125 °C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K142HFT0MLLT, S32K144HFT0MLLT offers scalability for future feature growth, while S32K142HFT0VLHT reduces qualification scope and packaging cost - both retain identical pinout, software compatibility, and CSEc functionality.

Availability

FS32K142HFT0MLLT is available at Aetrix Electronics and suitable for automotive body control, electronic power steering, and telematics subsystems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualification.

Supply support for FS32K142HFT0MLLT 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 Arm-based MCUs and functional safety.

The S32K1xx family is designed specifically for automotive electronics - emphasizing ASIL-B compliance, embedded security (CSEc), and robust operation across extreme temperature ranges in safety-critical ECUs.

FAQ

What is the maximum operating frequency of the FS32K142HFT0MLLT?

The FS32K142HFT0MLLT operates at up to 80 MHz in RUN mode. Although the S32K14x family supports 112 MHz in HSRUN mode, the M-grade temperature rating (-40 °C to +125 °C) restricts this device to 80 MHz to ensure thermal reliability. This frequency is fully supported across the entire specified ambient temperature range and enables deterministic real-time execution for automotive control tasks.

Does the FS32K142HFT0MLLT support CAN-FD?

Yes, the FS32K142HFT0MLLT includes one FlexCAN module with optional CAN-FD support enabled via configuration. It complies with ISO 11898-1 and supports data rates up to 5 Mbps in FD mode. The implementation requires an external CAN-FD transceiver and proper PCB layout for signal integrity - no hardware modification to the FS32K142HFT0MLLT itself is needed to activate CAN-FD functionality.

Can CSEc cryptographic operations be executed in HSRUN mode on the FS32K142HFT0MLLT?

No. CSEc (Cryptographic Services Engine) operations - including AES encryption, SHA hashing, and key generation - are explicitly prohibited in HSRUN mode per NXP documentation. Since the FS32K142HFT0MLLT is rated for 80 MHz RUN mode only, all CSEc functions execute safely in that mode. Attempting CSEc use at higher frequencies triggers error flags and requires mode transition, which is not applicable here due to the device's fixed 80 MHz limit.

What package type and pin count does the FS32K142HFT0MLLT use?

The FS32K142HFT0MLLT uses a 48-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch). This package is pin-compatible with other S32K14x variants in the same footprint, enabling scalable design reuse. It provides full access to FlexCAN, three LPUART/LIN channels, two LPSPI modules, one LPI2C, 12-bit ADC inputs, and 43 GPIOs - sufficient for mid-tier automotive ECU implementations.

Is the FS32K142HFT0MLLT qualified for automotive applications?

Yes, the FS32K142HFT0MLLT is AEC-Q100 qualified for Grade 1 (-40 °C to +125 °C ambient), making it suitable for under-hood automotive applications. It includes built-in safety mechanisms such as ECC on flash/SRAM, System MPU, CRC module, dual watchdogs (WDOG/EWM), and ASIL-B capable architecture - all validated per ISO 26262 requirements for automotive safety integrity level B.