NXP Semiconductors FS32K142HRT0VLLR

Overview

FS32K142HRT0VLLR from NXP Semiconductors is an automotive-grade Arm® Cortex-M4F microcontroller designed for real-time control in safety-critical ECUs. It operates at up to 112 MHz (HSRUN mode), features 256 KB flash with ECC, 256 KB SRAM with ECC, and supports -40 °C to +105 °C ambient operation. Used in body control modules, gateway controllers, and battery management systems requiring ASIL-B compliance.

For engineers reviewing the FS32K142HRT0VLLR datasheet, FS32K142HRT0VLLR pinout, FS32K142HRT0VLLR application, or FS32K142HRT0VLLR equivalent, this page delivers verified technical context, package mapping, functional pin roles, safety-aware power mode constraints, and validated alternative options - all specific to the VLLR (100-pin LQFP, -40°C to +105°C) variant.

Technical Context

The FS32K142HRT0VLLR implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN / 80 MHz RUN) and integrated DSP/FPU, paired with NXP's system-level Memory Protection Unit (MPU) enforcing crossbar-switch–based memory access rights across CPU, DMA, and Ethernet masters. Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable low-power modes including VLPR, VLPS, STOP, RUN, and HSRUN.

Power management requires mode switching for security and non-volatile operations: CSEc cryptographic functions and FlexNVM EEPROM emulation are disabled in HSRUN mode and must execute in RUN mode (80 MHz). Analog subsystems include two 12-bit ADCs (1 Msps, up to 32 channels each), one analog comparator with integrated 8-bit DAC, and dedicated low-power timers (LPTMR, LPIT) with flexible wake-up triggers.

Key Specifications

Pinout & Package

FS32K142HRT0VLLR uses a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad (non-electrical). Pin assignments follow NXP's S32K14x family pinout standard for 100-pin LQFP variants, supporting full peripheral mapping including three FlexCAN interfaces, dual ADCs, and 89 GPIOs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K142HRT0VLLR, S32K144HRT0VLLR offers double memory and expanded connectivity for scalable gateways, while S32K142HRT0MLLR maintains identical functionality with extended thermal rating for harsher under-hood placement - both retain full pin compatibility and software reuse.

Availability

FS32K142HRT0VLLR is available at Aetrix Electronics and suitable for body control modules, electric power steering units, and vehicle gateway systems requiring stable component supply across automotive production lifecycles.

Supply support for FS32K142HRT0VLLR 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, high-performance automotive, industrial, and IoT solutions, with deep expertise in Arm-based microcontrollers and functional safety certification.

The S32K1xx family - including FS32K142HRT0VLLR - was engineered specifically for ASIL-B automotive control applications, emphasizing safety mechanisms, robust power management, and seamless integration with AUTOSAR and ISO 26262 development workflows.

FAQ

What is the maximum operating frequency of the FS32K142HRT0VLLR and under what conditions?

The FS32K142HRT0VLLR achieves up to 112 MHz in HSRUN mode, which requires VDD ≥ 2.7 V and ambient temperature ≤ +105 °C. At 112 MHz, the device delivers 140 DMIPS and 1.25 Dhrystone MIPS per MHz. Operation above 80 MHz disables CSEc and FlexNVM write/erase functions - those must execute in RUN mode (80 MHz) to avoid error flag assertion.

Does the FS32K142HRT0VLLR support CAN-FD, and how many CAN interfaces does it have?

The FS32K142HRT0VLLR integrates three FlexCAN modules, with one supporting CAN-FD (ISO 11898-1:2015). The other two operate in classical CAN 2.0B mode. All three support loopback self-test, configurable bit timing, and DMA-accelerated message buffering - enabling simultaneous handling of high-priority FD frames and legacy CAN traffic in gateway or domain controller applications.

What safety certifications and hardware safety features does the FS32K142HRT0VLLR include?

The FS32K142HRT0VLLR is designed to support ASIL-B compliance per ISO 26262. It includes ECC on flash and SRAM, a system-level MPU enforcing memory access rights across CPU/DMA/Ethernet, dual watchdogs (WDOG and EWM), CRC acceleration, and lockstep-capable peripherals. Its CSEc engine provides SHE-compliant secure boot and cryptographic services essential for safety-related firmware integrity.

Can the FS32K142HRT0VLLR execute secure operations like CSEc or EEPROM emulation in HSRUN mode?

No. The FS32K142HRT0VLLR explicitly prohibits CSEc cryptographic operations and FlexNVM EEPROM emulation while in HSRUN mode (112 MHz). Attempting either triggers error flags. These functions must be executed in RUN mode (80 MHz), as documented in the S32K1xx Data Sheet Rev. 15. This constraint is enforced by hardware and applies regardless of voltage or temperature conditions.

What package type and pin count does the FS32K142HRT0VLLR use, and is it pin-compatible with other S32K14x devices?

The FS32K142HRT0VLLR uses a 100-pin LQFP package (VLLR suffix), 14 × 14 mm, 0.5 mm pitch. It is pin-to-pin compatible with all other S32K14x and S32K14xW devices offered in the 100-pin LQFP variant - including S32K144HRT0VLLR and S32K142HRT0MLLR - enabling hardware reuse across memory, temperature, and feature variants without PCB redesign.