NXP Semiconductors FS32K144HFT0MMHT

Overview

FS32K144HFT0MMHT 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/80 MHz RUN 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 for engine control and body electronics applications.

For engineers reviewing the FS32K144HFT0MMHT datasheet, FS32K144HFT0MMHT pinout, FS32K144HFT0MMHT application, or FS32K144HFT0MMHT equivalent, this page delivers verified technical context, package mapping, safety-critical timing parameters, automotive power mode behavior, and validated alternative options - all specific to the FS32K144HFT0MMHT 144-pin LQFP variant with M-grade temperature rating and tape-and-reel packaging.

Technical Context

The FS32K144HFT0MMHT implements a dual-core architecture with Arm Cortex-M4F (primary) and Cortex-M0+ (auxiliary) execution units, supporting concurrent real-time control and safety monitoring. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable phase-locked loop output routing to peripherals including FlexTimers and ADCs.

Power management includes five defined modes: HSRUN (112 MHz, -40 °C to +125 °C), RUN (80 MHz), STOP, VLPR, and VLPS - with mandatory mode switching required for CSEc cryptographic operations or EEPROM emulation writes, as these functions are prohibited in HSRUN mode per hardware design constraint.

Key Specifications

Pinout & Package

FS32K144HFT0MMHT is housed in a 144-pin LQFP package (16 mm × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows NXP's standardized S32K14x signal multiplexing scheme, supporting up to 156 GPIOs depending on peripheral enable configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K144HFT0VLHT, the FS32K144HFT0MMHT enables higher-temperature deployment in engine compartments without derating, while FS32K146HFT0MLHT trades pin compatibility for expanded networking and memory - making FS32K144HFT0MMHT the preferred choice for thermally demanding, safety-critical ECU applications requiring no layout change.

Availability

FS32K144HFT0MMHT is available at Aetrix Electronics and suitable for engine control units, ADAS sensor hubs, electric power steering modules, and body control modules requiring stable component supply across automotive production lifecycles.

Supply support for FS32K144HFT0MMHT 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 functional safety and automotive-grade reliability.

The S32K1xx family - including FS32K144HFT0MMHT - was designed specifically for ASIL-B/C automotive applications such as powertrain, chassis, and advanced driver assistance systems, integrating safety mechanisms, security engines, and robust power management from silicon inception.

FAQ

What is the maximum operating frequency of the FS32K144HFT0MMHT and under what conditions?

The FS32K144HFT0MMHT achieves 112 MHz in HSRUN mode, but only within its specified ambient temperature range of -40 °C to +125 °C. At this frequency, CSEc security operations and EEPROM emulation writes are disabled; those functions require switching to 80 MHz RUN mode. The device's Arm Cortex-M4F core delivers 1.25 DMIPS/MHz performance at 112 MHz, validated across process/voltage/temperature corners per AEC-Q100.

Does the FS32K144HFT0MMHT support CAN-FD, and how many instances are available?

Yes, the FS32K144HFT0MMHT integrates three FlexCAN modules, each supporting CAN-FD (ISO 11898-1) with data rates up to 5 Mbps in FD mode. All three modules are fully functional in the 144-pin LQFP package, with dedicated TX/RX pins assigned per channel and configurable bit timing registers for mixed-speed network integration.

What safety certifications apply to the FS32K144HFT0MMHT?

The FS32K144HFT0MMHT is AEC-Q100 Grade 1 qualified (-40 °C to +125 °C) and architected to support ISO 26262 ASIL-B compliance. Key safety features include ECC on flash and SRAM, system-level MPU enforcing memory access rights per master, dual watchdogs (WDOG and EWM), CRC acceleration, and lockstep-capable peripherals - all documented in NXP's S32K1xx Functional Safety Manual.

Can the FS32K144HFT0MMHT execute CSEc cryptographic operations at 112 MHz?

No. The FS32K144HFT0MMHT explicitly prohibits CSEc (Cryptographic Services Engine) execution and EEPROM emulation writes while operating in HSRUN mode at 112 MHz. Attempting these operations triggers hardware error flags. The device must transition to RUN mode (80 MHz) to perform CSEc AES/SHA operations or FlexNVM write/erase cycles - a hardwired constraint confirmed in the S32K1xx Data Sheet Rev. 15, Section 1.1 and Figure 3 footnotes.

What package type and pin count does the FS32K144HFT0MMHT use?

The FS32K144HFT0MMHT uses a 144-pin LQFP package (16 mm × 16 mm, 0.5 mm pitch) with exposed thermal pad. This package is pin-to-pin compatible with other S32K14x devices in the same footprint, enabling hardware scalability across memory and peripheral variants without PCB redesign.