NXP Semiconductors FX32K144HAT0MLLR

Overview

FX32K144HAT0MLLR 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 FX32K144HAT0MLLR datasheet, FX32K144HAT0MLLR pinout, FX32K144HAT0MLLR application, or FX32K144HAT0MLLR equivalent, this page delivers verified technical context, package-specific pin mapping, safety-critical power mode behavior, real-world automotive use cases, and two validated alternative parts - all grounded in NXP's S32K1xx Rev. 15 datasheet and orderable part number list.

Technical Context

The FX32K144HAT0MLLR 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 gating per peripheral domain.

Power management includes five distinct modes: HSRUN (112 MHz, -40 °C to +105 °C), RUN (80 MHz, -40 °C to +125 °C), STOP, VLPR, and VLPS - with CSEc cryptographic operations and EEPROM emulation explicitly restricted to RUN mode to prevent error flag assertion.

Key Specifications

Pinout & Package

FX32K144HAT0MLLR is packaged in a 144-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) with thermal pad. Pin assignment follows NXP's S32K144W pinout variant for 144-pin LQFP, confirmed via S32K1xx_Orderable_Part_Number_List.xlsx and S32K1xx Reference Manual IO Signal Description sheets.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FX32K144HAT0MLLR, S32K144HAT0VLHR reduces thermal margin for cost savings in non-under-hood locations, while S32K146HAT0MLLR extends memory and timer capacity for scalable ECU platforms - both retain identical safety architecture and CAN-FD capability.

Availability

FX32K144HAT0MLLR is available at Aetrix Electronics and suitable for engine control units, ADAS sensor hubs, electric power steering systems, and body control modules requiring stable component supply across automotive production lifecycles.

Supply support for FX32K144HAT0MLLR 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 functional safety and ASIL-certified MCU design.

The S32K1xx family - including FX32K144HAT0MLLR - was engineered specifically for automotive electronic control units demanding ASIL-B compliance, real-time performance, and end-to-end security from boot to runtime.

FAQ

What is the maximum operating frequency of FX32K144HAT0MLLR and under which conditions?

FX32K144HAT0MLLR operates at up to 112 MHz in HSRUN mode, but only within the ambient temperature range of -40 °C to +105 °C. At the full M-grade rating (-40 °C to +125 °C), it is limited to 80 MHz in RUN mode. This thermal derating ensures silicon reliability and timing closure across automotive environments.

Does FX32K144HAT0MLLR support CAN-FD, and how many instances are available?

Yes, FX32K144HAT0MLLR integrates three FlexCAN modules, each supporting CAN-FD with bit-rate switching (up to 5 Mbps in data phase). All three are accessible in the 144-pin LQFP package, with dedicated TX/RX pins mapped to separate physical layers for redundancy-critical applications like powertrain gateways.

Can CSEc security functions be executed in HSRUN mode on FX32K144HAT0MLLR?

No. The FX32K144HAT0MLLR datasheet explicitly prohibits CSEc cryptographic operations (e.g., AES encryption, key derivation) and EEPROM emulation in HSRUN mode. These functions must be performed in RUN mode (80 MHz) to avoid triggering error flags and ensure deterministic execution timing required for safety certification.

What is the flash memory configuration of FX32K144HAT0MLLR, and does it include ECC?

FX32K144HAT0MLLR contains 2 MB of program flash memory with built-in Error-Correcting Code (ECC) protection. This ECC implementation detects and corrects single-bit errors and detects double-bit errors, satisfying ASIL-B requirements for memory integrity in automotive safety applications.

Which package type and pin count does FX32K144HAT0MLLR use?

FX32K144HAT0MLLR uses a 144-pin LQFP package (10 mm × 10 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 reuse across performance tiers in automotive platform strategies.