NXP Semiconductors FS32K144HAT0MLFR

Overview

FS32K144HAT0MLFR 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 unit (ECU) applications.

For engineers reviewing the FS32K144HAT0MLFR datasheet, FS32K144HAT0MLFR pinout, FS32K144HAT0MLFR application, or FS32K144HAT0MLFR equivalent, this page delivers verified technical context, package-specific pin mapping, safety-critical power mode behavior, real-world automotive use cases, and validated alternative part options - all grounded in NXP's S32K1xx Rev. 15 datasheet and orderable part number documentation.

Technical Context

The FS32K144HAT0MLFR implements a dual-core-capable architecture with Arm Cortex-M4F core (Armv7, Thumb-2 ISA), integrated DSP, single-precision FPU, and configurable NVIC. Its clock system includes 4–40 MHz SOSC, 48 MHz FIRC, 8 MHz SIRC, 128 kHz LPO, and SPLL supporting up to 112 MHz in HSRUN mode.

Power management uses PMC with five modes: HSRUN (112 MHz), RUN (80 MHz), STOP, VLPR, and VLPS. Critical constraints apply: CSEc security operations and EEPROM writes/erase are prohibited in HSRUN mode and require switching to RUN mode (80 MHz); memory protection is enforced via NXP's system MPU at crossbar level, not Arm Core MPU.

Key Specifications

Pinout & Package

FS32K144HAT0MLFR is housed in a 144-pin LQFP (16 × 16 mm, 0.5 mm pitch) package. This package supports full peripheral availability including all three FlexCAN interfaces, dual ADCs, Ethernet MAC (if enabled), and 156 GPIOs - subject to pin multiplexing as defined in the S32K1xx Reference Manual IO Signal Description sheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K144HAT0MLFR, FS32K146HAT0MLFR offers more SRAM and FlexTimer resources but fewer I/Os, while FS32K144HFT0MLFR shares identical pinout and feature set but sacrifices high-temp reliability - making FS32K144HAT0MLFR the optimal choice for thermally demanding ASIL-B ECU designs requiring maximum I/O flexibility.

Availability

FS32K144HAT0MLFR is available at Aetrix Electronics and suitable for engine control units, ADAS sensor hubs, electric power steering systems, and vehicle gateway modules requiring stable component supply across extended automotive lifecycles.

Supply support for FS32K144HAT0MLFR 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 MCUs.

The S32K1xx family - including FS32K144HAT0MLFR - was designed specifically for ASIL-B automotive body, chassis, and powertrain applications, emphasizing safety-certified peripherals, robust security, and seamless integration into AUTOSAR-based software stacks.

FAQ

What is the maximum operating frequency of the FS32K144HAT0MLFR, and under what conditions is it valid?

The FS32K144HAT0MLFR achieves 112 MHz in HSRUN mode, which is its highest operational frequency. This speed is only valid within the -40 °C to +125 °C ambient temperature range and requires VDD ≥ 2.7 V. However, CSEc security operations and EEPROM writes/erase are explicitly prohibited at 112 MHz and require switching to RUN mode (80 MHz) - a critical constraint documented in NXP's S32K1xx Rev. 15 datasheet Section 1.1 and Figure 3.

Does the FS32K144HAT0MLFR support CAN-FD, and how many CAN interfaces does it include?

Yes, the FS32K144HAT0MLFR integrates three FlexCAN modules, each supporting CAN-FD per ISO 11898-1 with data rates up to 5 Mbps and payload lengths up to 64 bytes. All three CAN controllers are accessible in the 144-pin LQFP package, with dedicated TX/RX pins mapped per the IO Signal Description sheet - enabling concurrent communication across powertrain, chassis, and body networks without protocol translation.

What safety certifications and hardware safety features does the FS32K144HAT0MLFR provide?

The FS32K144HAT0MLFR is designed to support ISO 26262 ASIL-B compliance through ECC on 2 MB flash and 256 KB SRAM, NXP's system-level MPU (enforced at the AXBS-Lite crossbar), CRC module, dual watchdogs (WDOG + EWM), and lockstep-capable peripheral design. It does not include Arm Core MPU, but NXP's system MPU protects memory regions for all masters - CPU, DMA, and Ethernet - satisfying memory isolation requirements for decomposition.

Can the FS32K144HAT0MLFR execute cryptographic operations while running at 112 MHz?

No. The FS32K144HAT0MLFR cannot execute CSEc (Cryptographic Services Engine) operations or EEPROM writes/erase while in HSRUN mode at 112 MHz. Doing so triggers error flags per NXP's datasheet Section 1.1 and Figure 3 notes. The device must transition to RUN mode (80 MHz) before initiating any CSEc command or flash/EEPROM programming sequence - a mandatory runtime coordination requirement for secure boot and OTA update implementations.

What package type and pin count does the FS32K144HAT0MLFR use, and is it pin-compatible with other S32K14x variants?

The FS32K144HAT0MLFR uses a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch). Per NXP's S32K1xx datasheet Section 3.1 and Figure 3, all S32K14x devices sharing the same package - including FS32K142, FS32K144, FS32K146, and FS32K148 - are pin-to-pin compatible. This enables hardware reuse across performance tiers while maintaining identical PCB layout and interconnect design.