NXP Semiconductors FS32K144HAT0MLHT

Overview

FS32K144HAT0MLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with HSRUN mode up to 112 MHz, 2 MB flash (ECC), 256 KB SRAM (ECC), and integrated CSEc security engine. It supports CAN-FD, FlexCAN, LPUART/LIN, LPSPI, LPI2C, FlexIO, and operates from -40 °C to +125 °C in 144-pin LQFP packaging - deployed in vehicle body control modules and powertrain gateways.

For engineers reviewing the FS32K144HAT0MLHT datasheet, FS32K144HAT0MLHT pinout, FS32K144HAT0MLHT application, or FS32K144HAT0MLHT equivalent, key selection considerations include HSRUN/RUN mode switching constraints for CSEc/EEPROM operations, ASIL-B capable safety architecture, 156 GPIO count, QuadSPI with HyperBus™ support, and temperature-rated operation at 125 °C ambient.

Technical Context

The FS32K144HAT0MLHT implements a dual-core-capable Arm Cortex-M4F core with single-precision FPU and DSP extensions, executing at up to 112 MHz in HSRUN mode (80 MHz in RUN mode). Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and SOSC (4–40 MHz), with configurable clock gating per peripheral domain.

Power management includes five modes - HSRUN, RUN, STOP, VLPR, VLPS - managed by PMC; CSEc cryptographic operations and EEPROM emulation are restricted to RUN mode (80 MHz) due to hardware arbitration conflict in HSRUN. Memory subsystem features ECC on 2 MB flash, 256 KB SRAM, and 64 KB FlexNVM with EEPROM emulation capability.

Key Specifications

Pinout & Package

FS32K144HAT0MLHT is housed in a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per the S32K144-specific IO Signal Description multiplexing sheet; all pins support configurable pull-up/down, slew rate control, and digital filtering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K146HAT0MLHT and S32K144HFT0MLHT, the FS32K144HAT0MLHT delivers the precise balance of ASIL-B safety features, 125 °C operation, CAN-FD, and 2 MB flash needed for mainstream body and chassis ECUs - avoiding over-specification while maintaining full pin compatibility within the S32K14x family.

Availability

FS32K144HAT0MLHT is available at Aetrix Electronics and suitable for automotive body control, electric power steering, and battery management systems requiring stable component supply across long production lifecycles and rigorous qualification standards.

Supply support for FS32K144HAT0MLHT 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 silicon.

The S32K1xx series is NXP's purpose-built automotive MCU platform targeting ASIL-B compliant applications, integrating Arm Cortex-M cores, safety mechanisms, and automotive communication interfaces into a scalable, pin-compatible family.

FAQ

What is the maximum operating frequency of the FS32K144HAT0MLHT and under what conditions?

The FS32K144HAT0MLHT achieves 112 MHz in HSRUN mode and 80 MHz in RUN mode. HSRUN mode requires VDD ≥ 2.7 V and ambient temperature ≤ 105 °C; operation above 105 °C mandates switching to RUN mode. This frequency limitation is enforced by hardware to maintain timing closure and thermal stability.

Does the FS32K144HAT0MLHT support CAN-FD, and how many instances are available?

Yes, the FS32K144HAT0MLHT integrates three FlexCAN modules, all supporting CAN-FD per ISO 11898-1 with bit-rate switching up to 5 Mbps. Each module includes dedicated message RAM, acceptance filtering, and loopback self-test capability - enabling concurrent high-speed diagnostics and control messaging on separate CAN domains.

Can CSEc security operations be executed while the FS32K144HAT0MLHT runs at 112 MHz?

No. CSEc cryptographic operations (AES, SHA, RNG) and EEPROM emulation writes/erases are explicitly prohibited in HSRUN mode (112 MHz) per hardware design. The FS32K144HAT0MLHT must transition to RUN mode (80 MHz) before initiating any CSEc command or FlexNVM write - failure triggers error flags and halts execution until mode change completes.

What is the flash memory configuration of the FS32K144HAT0MLHT, and does it include ECC?

The FS32K144HAT0MLHT contains 2 MB of program flash memory with full Error-Correcting Code (ECC) protection, plus 64 KB of FlexNVM for data flash or EEPROM emulation - also ECC-protected. This dual-ECC architecture meets ISO 26262 ASIL-B requirements for fault detection and correction in safety-critical automotive code storage.

Is the FS32K144HAT0MLHT pin-compatible with other S32K14x devices in the same package?

Yes. All S32K14x devices sharing the 144-pin LQFP package - including FS32K142HAT0MLHT, FS32K144HAT0MLHT, and FS32K146HAT0MLHT - are fully pin-to-pin compatible. Peripheral availability varies by device variant, but pin assignments, power domains, and reset behavior remain identical across the family.