NXP Semiconductors FX32K142HAT0MLHT

Overview

FX32K142HAT0MLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with HSRUN mode up to 112 MHz, 512 KB flash, 64 KB SRAM, and integrated CSEc security engine. It supports -40 °C to +125 °C operation, features dual 12-bit ADCs (up to 32 channels), three FlexCAN modules (CAN-FD capable), and operates across 2.7–5.5 V supply. It is used in body control modules requiring real-time safety-critical firmware execution and secure over-the-air updates.

For engineers reviewing the FX32K142HAT0MLHT datasheet, FX32K142HAT0MLHT pinout, FX32K142HAT0MLHT application, or FX32K142HAT0MLHT equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-meaningful feature analysis - all grounded in NXP's official S32K1xx Rev. 15 datasheet and orderable part number documentation.

Technical Context

The FX32K142HAT0MLHT implements a dual-core architecture with Arm Cortex-M4F as primary core and optional M0+ for low-power co-processing. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling dynamic mode switching between HSRUN (112 MHz), RUN (80 MHz), STOP, VLPR, and VLPS.

Memory subsystem includes ECC-protected 512 KB program flash, 64 KB FlexNVM for EEPROM emulation, 64 KB SRAM, and 4 KB FlexRAM configurable as SRAM or EEPROM. Safety features include System MPU, CRC module, WDOG/EWM, and CSEc cryptographic engine compliant with SHE specification - though CSEc operations require mode transition from HSRUN to RUN (80 MHz).

Key Specifications

Pinout & Package

FX32K142HAT0MLHT is packaged in a 100-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch and exposed thermal pad. This package supports full I/O access for all peripherals listed in the S32K142 feature set, including all three FlexCAN controllers, dual ADCs, and Ethernet interface signals where enabled.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FX32K142HAT0MLHT, S32K144HAT0MLHT provides scalable memory for future-proofing, while S32K142HAT0VLHT trades thermal margin for cost efficiency - both retain identical peripheral functionality, safety features, and software stack compatibility.

Availability

FX32K142HAT0MLHT is available at Aetrix Electronics and suitable for automotive body electronics, electric power steering, and battery management systems requiring stable component supply, long lifecycle support, and AEC-Q100 qualification.

Supply support for FX32K142HAT0MLHT 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 microcontrollers and functional safety.

The S32K1xx product line was designed specifically for automotive electronic control units requiring ASIL-B compliance, real-time performance, and hardware-enforced security - targeting body, chassis, and electrification applications.

FAQ

What is the maximum operating frequency of FX32K142HAT0MLHT and under what conditions?

FX32K142HAT0MLHT achieves 112 MHz in HSRUN mode, guaranteed across -40 °C to +125 °C ambient and 2.7–5.5 V supply. This frequency requires SPLL configuration and is disabled during CSEc or EEPROM operations, which mandate a switch to RUN mode (80 MHz) per NXP's datasheet Rev. 15 section 1.1 and Figure 3.

Does FX32K142HAT0MLHT support CAN-FD, and how many instances are available?

Yes, FX32K142HAT0MLHT integrates three FlexCAN modules, each supporting CAN-FD per ISO 11898-1. All three are fully functional in the 100-pin LQFP package, with dedicated TX/RX pins mapped to separate port groups - confirmed in the S32K1xx Datasheet Rev. 15 Feature Comparison table (Figure 3) and Pin Multiplexing documentation.

What memory protection mechanisms does FX32K142HAT0MLHT provide for ASIL-B compliance?

FX32K142HAT0MLHT implements NXP's system-level MPU at the crossbar switch, enforcing memory access rights per master (CPU, DMA, Ethernet). Combined with ECC on flash/SRAM, CRC module, WDOG/EWM, and CSEc, it satisfies ASIL-B requirements per ISO 26262 - detailed in Section 1.1 "Safety and security" and Figure 1 of the S32K1xx Datasheet Rev. 15.

Can FX32K142HAT0MLHT execute CSEc cryptographic operations at 112 MHz?

No. The FX32K142HAT0MLHT triggers error flags if CSEc or EEPROM write/erase commands are issued in HSRUN mode (112 MHz). As stated in multiple sections of the S32K1xx Datasheet Rev. 15 (Features 1.1, Block Diagram notes, and Figure 3 footnote), the device must transition to RUN mode (80 MHz) to execute these operations safely and reliably.

What is the ADC resolution and channel count supported by FX32K142HAT0MLHT?

FX32K142HAT0MLHT 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. Channel selection, trigger sources (PDB, LPIT), and calibration are configurable via the S32K1xx Reference Manual - verified in Section 1.1 "Mixed-signal analog" and Figure 3 of the datasheet.