NXP Semiconductors FS32K144MRT0VLHT

Overview

FS32K144MRT0VLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), and support for HSRUN mode at 112 MHz. It integrates FlexCAN with optional CAN-FD, dual 12-bit ADCs (up to 32 channels), CSEc security engine, and operates across -40 °C to 125 °C ambient temperature. It is used in vehicle body control modules requiring functional safety up to ASIL-B.

For engineers reviewing the FS32K144MRT0VLHT datasheet, FS32K144MRT0VLHT pinout, FS32K144MRT0VLHT application, or FS32K144MRT0VLHT equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use-value analysis, and validated alternative options - all grounded in NXP's official S32K1xx Rev. 15 datasheet and orderable part documentation.

Technical Context

The FS32K144MRT0VLHT implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN / 80 MHz RUN) and integrated DSP+FPU, paired with NXP's system-level Memory Protection Unit (MPU) enforcing crossbar-switch-level memory access control across CPU, DMA, and Ethernet masters. Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise low-power timing and deterministic real-time response.

Power management supports five modes (HSRUN, RUN, STOP, VLPR, VLPS), with mandatory mode switching - e.g., CSEc cryptographic operations or EEPROM emulation require transition from HSRUN (112 MHz) to RUN (80 MHz) to avoid error flag assertion. Analog subsystem includes two independent 12-bit SAR ADCs (1 Msps each), one analog comparator with integrated 8-bit DAC, and configurable TRGMUX for synchronized peripheral triggering.

Key Specifications

Pinout & Package

FS32K144MRT0VLHT is packaged in a 144-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, designed for automotive PCB layouts requiring thermal robustness and mechanical reliability. The package supports full pin-to-pin compatibility across S32K14x family members sharing the same pin count.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144HRT0VLHT, FS32K144MRT0VLHT enables under-hood deployment without thermal throttling; versus S32K146MRT0VLHT, it reduces silicon cost and power consumption where Ethernet is unnecessary - making it the most balanced choice for ASIL-B body control and EPS applications.

Availability

FS32K144MRT0VLHT is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, and vehicle gateway applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualification.

Supply support for FS32K144MRT0VLHT 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 MCU design.

The S32K1xx family - including FS32K144MRT0VLHT - was engineered specifically for automotive electronic control units demanding ASIL-B compliance, real-time determinism, and seamless integration with CAN FD, LIN, and Ethernet networks.

FAQ

What is the maximum operating frequency of the FS32K144MRT0VLHT?

The FS32K144MRT0VLHT operates at up to 112 MHz in HSRUN mode and 80 MHz in RUN mode. The 112 MHz frequency is only permitted in ambient temperatures up to 105 °C (HSRUN mode limit), while the full -40 °C to 125 °C range is supported at 80 MHz (RUN mode). This dual-frequency capability allows designers to optimize performance versus thermal constraints in automotive deployments.

Does the FS32K144MRT0VLHT support CAN-FD?

Yes, the FS32K144MRT0VLHT supports CAN-FD on up to two of its three FlexCAN modules, as confirmed by NXP's S32K1xx datasheet Rev. 15 feature comparison table. CAN-FD operation requires proper configuration of bit timing registers and external CAN-FD transceivers; the MCU itself handles protocol framing, error handling, and payload arbitration without software overhead.

What is the purpose of the CSEc security engine in the FS32K144MRT0VLHT?

The Cryptographic Services Engine (CSEc) in the FS32K144MRT0VLHT implements SHE-compliant functions including AES-128 encryption/decryption, SHA-256 hashing, true random number generation, and secure key storage. It enables secure boot, firmware authentication, and OTA update integrity - but must be executed in RUN mode (80 MHz), not HSRUN mode (112 MHz), to prevent error flag assertion during operation.

How many ADC channels does the FS32K144MRT0VLHT support?

The FS32K144MRT0VLHT integrates two independent 12-bit SAR ADC modules, each supporting up to 32 analog input channels - for a total of up to 64 configurable inputs. Each module achieves 1 Msps sampling rate and supports hardware triggering via FTM, PDB, or LPIT, enabling synchronized multi-sensor acquisition in motor control or battery monitoring applications.

Is the FS32K144MRT0VLHT pin-compatible with other S32K14x devices?

Yes, the FS32K144MRT0VLHT in 144-pin LQFP is pin-to-pin compatible with all other S32K14x and S32K14xW devices offered in the same 144-pin LQFP package, as explicitly stated in the S32K1xx datasheet section "Features comparison". This allows hardware reuse across variants differing in flash size, peripheral enablement, or temperature grade without PCB redesign.