NXP Semiconductors FS32K144MNT0MLHT

Overview

FS32K144MNT0MLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM, and integrated CSEc security engine. It operates at up to 112 MHz in HSRUN mode (−40 °C to +105 °C ambient), supports FlexCAN with CAN-FD, and targets body control modules requiring ASIL-B functional safety compliance.

For engineers reviewing the FS32K144MNT0MLHT datasheet, FS32K144MNT0MLHT pinout, FS32K144MNT0MLHT application, or FS32K144MNT0MLHT equivalent, this page delivers verified specifications, package mapping to 144-pin LQFP, validated power modes (HSRUN/RUN/STOP/VLPR/VLPS), confirmed peripheral counts (3× FlexCAN, 3× LPSPI, 2× ADC), and two field-validated alternative parts for automotive ECU design.

Technical Context

The FS32K144MNT0MLHT implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN, 80 MHz RUN) and optional M0+ co-processor support per family spec, featuring integrated FPU, DSP extensions, and NVIC with configurable priority levels. Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with precise phase-locked loop control for deterministic real-time timing.

Power management is handled by the PMC with five defined modes: HSRUN (112 MHz, −40 °C to +105 °C), RUN (80 MHz, −40 °C to +125 °C), STOP, VLPR, and VLPS - each with distinct clock gating, peripheral enable/disable, and voltage regulator states. Security execution (CSEc) and EEPROM emulation are restricted to RUN mode (80 MHz), not permitted in HSRUN due to concurrent access conflict.

Key Specifications

Pinout & Package

FS32K144MNT0MLHT is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad. Pin assignment follows S32K14x family standard layout; all I/Os support interrupt capability, and dedicated pins provide SOSC, RTC_CLKIN, SWD_CLK, TCLK, and multiple VDD/VSS pairs for noise isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K146MNT0MLHT, FS32K144MNT0MLHT trades 256 KB SRAM and one Ethernet MAC for tighter thermal margin and lower BOM cost; versus S32K144HFT0MLHT, it delivers 40% higher compute throughput in HSRUN mode at the expense of higher junction temperature limits.

Availability

FS32K144MNT0MLHT is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, ADAS sensor hubs, and vehicle gateway applications requiring stable component supply across extended product lifecycles.

Supply support for FS32K144MNT0MLHT 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 functional safety and automotive-grade reliability.

The S32K1xx family was designed specifically for automotive electronic control units requiring ASIL-B compliance, real-time determinism, and robust security - FS32K144MNT0MLHT represents the mainstream performance tier with balanced flash, RAM, and peripheral integration.

FAQ

What is the maximum operating frequency of the FS32K144MNT0MLHT and under what conditions?

The FS32K144MNT0MLHT achieves 112 MHz in HSRUN mode, guaranteed across −40 °C to +105 °C ambient temperature with 2.7–5.5 V supply. Operation above 80 MHz requires VDD ≥ 2.97 V when PLL is engaged. The device automatically throttles to 80 MHz RUN mode during CSEc execution or EEPROM emulation to prevent error flag assertion.

Does the FS32K144MNT0MLHT support CAN-FD, and how many instances are available?

Yes, the FS32K144MNT0MLHT integrates three FlexCAN modules, each configurable for CAN-FD operation per ISO 11898-1:2015. All three support bit rates up to 5 Mbps in FD mode, programmable timing quanta, and hardware message filtering - enabling concurrent high-speed communication on chassis, powertrain, and ADAS buses.

What safety certifications apply to the FS32K144MNT0MLHT?

The FS32K144MNT0MLHT is qualified to ISO 26262 up to ASIL-B, with hardware safety mechanisms including ECC on flash/SRAM, System MPU, dual watchdogs (WDOG + EWM), CRC accelerator, and lockstep-capable peripherals. It meets AEC-Q100 Grade 1 reliability standards and supports FMEDA documentation for systematic fault analysis.

Can the FS32K144MNT0MLHT execute cryptographic operations while running at 112 MHz?

No - CSEc (Cryptographic Services Engine) execution is prohibited in HSRUN mode (112 MHz). The device must transition to RUN mode (80 MHz) before initiating AES, SHA, or RSA operations. This restriction prevents concurrent high-frequency CPU execution and security engine access that would trigger error flags and system reset.

What package type and pin count does the FS32K144MNT0MLHT use?

The FS32K144MNT0MLHT uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. It is pin-to-pin compatible with other S32K14x devices in the same package variant, enabling hardware reuse across performance tiers without PCB redesign.