NXP Semiconductors FS32K144HNT0CLLR

Overview

FS32K144HNT0CLLR 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 operation, and integrated CSEc security engine. It supports CAN-FD, FlexCAN, LPUART/LIN, LPSPI, LPI2C, FlexIO, and dual 12-bit ADCs-designed for body control modules, gateway ECUs, and battery management systems requiring ASIL-B functional safety compliance.

For engineers reviewing the FS32K144HNT0CLLR datasheet, FS32K144HNT0CLLR pinout, FS32K144HNT0CLLR application, or FS32K144HNT0CLLR equivalent, key selection criteria include its 144-pin LQFP package, -40 °C to 105 °C ambient rating (V-grade), 80/112 MHz dual-speed operation, CSEc cryptographic acceleration, and mandatory RUN-mode execution for EEPROM/CSEc writes-critical for automotive firmware update and secure boot designs.

Technical Context

The FS32K144HNT0CLLR implements a dual-core-capable architecture with Arm Cortex-M4F core featuring single-precision FPU, DSP extensions, and NVIC, paired with a configurable system-level MPU enforcing memory access rights across cores and DMA. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise low-power timing control via LPIT, LPTMR, RTC, and PDB.

Power management includes five distinct modes (HSRUN, RUN, STOP, VLPR, VLPS) with clock gating and peripheral-specific low-power availability; however, CSEc operations and FlexNVM EEPROM emulation are restricted to RUN mode (80 MHz), not HSRUN, due to hardware arbitration constraints confirmed in multiple data sheet notes.

Key Specifications

Pinout & Package

FS32K144HNT0CLLR is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized S32K14x signal mapping, supporting full I/O multiplexing per the Reference Manual's IO Signal Description sheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K144HNT0CLLR, S32K144HFT0MLLR trades cold-crank voltage margin for extended temperature capability, while S32K146HNT0CLLR adds Ethernet and audio peripherals at the cost of reduced flash density-making FS32K144HNT0CLLR optimal for cost-constrained, non-Ethernet automotive control nodes requiring maximum flash and broad voltage tolerance.

Availability

FS32K144HNT0CLLR is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, and battery management systems requiring stable component supply across long production lifecycles and stringent automotive qualification standards.

Supply support for FS32K144HNT0CLLR 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 FS32K144HNT0CLLR-is designed specifically for automotive electronic control units requiring ASIL-B compliance, secure firmware execution, and robust operation across extreme temperature and voltage conditions.

FAQ

What is the maximum operating frequency of the FS32K144HNT0CLLR, and under what conditions?

The FS32K144HNT0CLLR operates at up to 112 MHz in HSRUN mode and 80 MHz in RUN mode. The 112 MHz frequency is only permitted in HSRUN mode with ambient temperature ≤105 °C and supply voltage ≥2.7 V. CSEc security operations and FlexNVM EEPROM writes must be executed in RUN mode (80 MHz), as confirmed in multiple data sheet notes and the S32K1xx Power Modes Configuration guide.

Does the FS32K144HNT0CLLR support CAN-FD, and how many instances are available?

Yes, the FS32K144HNT0CLLR supports CAN-FD via three independent FlexCAN modules, each configurable for ISO 11898-1 CAN-FD operation up to 5 Mbps with bit-rate switching. This capability is explicitly listed in the S32K1xx Feature Comparison table and validated in the block diagram and peripheral description sections of the data sheet.

What memory protection mechanisms does the FS32K144HNT0CLLR implement for functional safety?

The FS32K144HNT0CLLR implements a system-level Memory Protection Unit (MPU) that enforces access rights across all masters (Cortex-M4F core, eDMA, Ethernet) at the Crossbar Switch level-not just core-initiated accesses. It also includes ECC on 2 MB flash and 256 KB SRAM, CRC module, internal WDOG, and external EWM-collectively supporting ASIL-B compliance per ISO 26262.

Can the FS32K144HNT0CLLR execute CSEc cryptographic functions in HSRUN mode?

No. The FS32K144HNT0CLLR cannot execute CSEc (Cryptographic Services Engine) operations or FlexNVM EEPROM writes/erase in HSRUN mode (112 MHz). Doing so triggers error flags, as explicitly stated in three separate data sheet notes. These operations must be performed in RUN mode (80 MHz), requiring software-controlled mode transition before security or non-volatile memory access.

What is the package type and pin count of the FS32K144HNT0CLLR?

The FS32K144HNT0CLLR uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. This is confirmed in the "Package" section of the data sheet and the S32K1xx Feature Comparison table, which lists "144-pin LQFP" as a supported option for the S32K144 series.