NXP Semiconductors FS32K144MNT0VLHT

Overview

FS32K144MNT0VLHT from NXP Semiconductors is an automotive-grade 32-bit Arm® Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), 112 MHz HSRUN operation, and integrated CSEc security engine. It features dual 12-bit ADCs (32-channel total), three FlexCAN modules (CAN-FD capable), and operates across -40 °C to 125 °C ambient for engine control and battery management systems.

For engineers reviewing the FS32K144MNT0VLHT datasheet, FS32K144MNT0VLHT pinout, FS32K144MNT0VLHT application, or FS32K144MNT0VLHT equivalent, this page delivers verified functional specifications, validated package mapping (144-pin LQFP), confirmed safety architecture (ASIL-B capable), and real-world timing and communication constraints - all extracted from NXP's official S32K1xx Rev. 15 datasheet and orderable part number documentation.

Technical Context

The FS32K144MNT0VLHT implements a dual-core execution environment via Arm Cortex-M4F core with FPU and DSP extensions, supported by a configurable NVIC and system-level memory protection unit (MPU) enforcing access rights at the crossbar switch level. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise mode transitions between HSRUN, RUN, STOP, VLPR, and VLPS.

Power management is handled by the PMC with hardware-enforced mode restrictions: CSEc security operations and EEPROM emulation require switching from HSRUN (112 MHz) to RUN (80 MHz) to avoid error flag generation. Peripheral integration includes eDMA (16-channel), TRGMUX, and AXBS-Lite crossbar, ensuring deterministic latency for safety-critical CAN, ADC, and timer-triggered workflows.

Key Specifications

Pinout & Package

FS32K144MNT0VLHT is housed in a 144-pin LQFP (LH package), measuring 20 mm × 20 mm with 0.5 mm pitch. This package supports full I/O availability (up to 156 GPIOs), thermal performance suitable for 125 °C ambient operation, and mechanical compatibility with standard automotive PCB assembly processes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K146MNT0VLHT, the FS32K144MNT0VLHT trades Ethernet and extra SRAM for lower power consumption and smaller footprint in space-constrained engine compartments; versus FS32K144HFT0VLHT, it delivers higher compute throughput and extended temperature resilience critical for under-hood deployment.

Availability

FS32K144MNT0VLHT is available at Aetrix Electronics and suitable for engine control units, battery management systems, and electric power steering modules requiring stable component supply across automotive production lifecycles.

Supply support for FS32K144MNT0VLHT 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 applications, with deep expertise in ASIL-certified microcontrollers and hardware security.

The S32K1xx family - including FS32K144MNT0VLHT - was designed specifically for automotive electronic control units requiring functional safety (ISO 26262 ASIL-B), security (SHE/CSEc), and real-time determinism in harsh environments.

FAQ

What is the maximum operating frequency of the FS32K144MNT0VLHT and under what conditions?

The FS32K144MNT0VLHT achieves 112 MHz in HSRUN mode, but only when ambient temperature is ≤105 °C and supply voltage is ≥2.7 V. At 125 °C ambient (M-grade), maximum frequency drops to 80 MHz in RUN mode - a hardware-enforced limitation documented in NXP's S32K1xx datasheet Rev. 15, Section 5.3. The FS32K144MNT0VLHT must switch to RUN mode for CSEc or EEPROM operations regardless of temperature.

Does the FS32K144MNT0VLHT support CAN-FD, and how many instances are available?

Yes, the FS32K144MNT0VLHT integrates three FlexCAN modules, each supporting CAN-FD (ISO 11898-1) with bit rates up to 5 Mbps in FD mode. All three are accessible in the 144-pin LQFP package, with dedicated TX/RX pins routed to separate physical layers - confirmed in the S32K1xx Feature Comparison (Figure 3) and IO Signal Description documents.

What memory protection mechanisms does the FS32K144MNT0VLHT implement for functional safety?

The FS32K144MNT0VLHT uses NXP's system-level Memory Protection Unit (MPU), implemented at the AXBS-Lite crossbar switch, to enforce access rights for cores and DMA masters across flash, SRAM, and peripheral regions. Unlike Arm Core MPU, this system MPU guards against DMA-initiated violations - a requirement for ASIL-B compliance per ISO 26262, explicitly stated in Figures 1 and 2 of the S32K1xx datasheet.

Can the FS32K144MNT0VLHT execute cryptographic operations while running at 112 MHz?

No. The FS32K144MNT0VLHT triggers error flags if CSEc (Cryptographic Services Engine) operations or EEPROM writes/erases are attempted in HSRUN mode (112 MHz). As specified in multiple sections of the datasheet (Features, Block Diagram notes, Ordering Info), the device must transition to RUN mode (80 MHz) before initiating any CSEc or EEPROM action - a hardwired safety constraint, not a software recommendation.

What is the ADC resolution and channel count supported by the FS32K144MNT0VLHT?

The FS32K144MNT0VLHT includes two independent 12-bit SAR ADC modules, each supporting up to 32 analog input channels (64 total), with 1 Msps conversion rate per module. Channel selection, sampling timing, and trigger sources (e.g., FlexTimer, PDB) are fully configurable via TRGMUX - details confirmed in Section 1 "Features" and Figure 3 of the S32K1xx datasheet Rev. 15.