NXP Semiconductors FS32K144ULT0VLHT

Overview

FS32K144ULT0VLHT 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 features dual 12-bit ADCs (up to 32 channels), three FlexCAN modules (CAN-FD capable), and operates across -40 °C to +105 °C for body control module and powertrain sensor interface applications.

For engineers reviewing the FS32K144ULT0VLHT datasheet, FS32K144ULT0VLHT pinout, FS32K144ULT0VLHT application, or FS32K144ULT0VLHT equivalent, this page delivers verified technical context, package-specific pin mapping, safety-critical timing parameters, real-world automotive use cases, and validated alternative parts - all grounded in NXP's S32K1xx Rev. 15 datasheet and orderable part number list.

Technical Context

The FS32K144ULT0VLHT implements a dual-core architecture with Arm Cortex-M4F as primary execution core (112 MHz HSRUN / 80 MHz RUN) and optional M0+ co-processor support, backed by AXBS-Lite crossbar switch and eDMA controller with 63 request sources. Its safety design includes System MPU enforcing memory access rights per master (Core, DMA, Ethernet), ECC on flash/SRAM, CRC module, and dual watchdog (WDOG + EWM).

Clock architecture integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and RTC_CLKIN (32 kHz), enabling deterministic low-power mode transitions (HSRUN/RUN/STOP/VLPR/VLPS). Security execution requires explicit mode switching: CSEc cryptographic operations and EEPROM emulation are prohibited in HSRUN mode and must execute in RUN mode (80 MHz) to avoid error flag assertion.

Key Specifications

Pinout & Package

FS32K144ULT0VLHT is housed in a 144-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, 20 × 20 mm body size, and exposed thermal pad. This package supports full peripheral availability including all three FlexCAN interfaces, dual ADCs, Ethernet MAC, and 156 GPIOs - subject to pin multiplexing constraints documented 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 FS32K144ULT0VLHT, the FS32K144HFT0VLHT trades peak performance for lower power and cost in non-HSRUN applications, while the FS32K146ULT0VLHT extends memory and connectivity headroom without altering pin compatibility or safety architecture - making it a drop-in upgrade path for scalable platform designs.

Availability

FS32K144ULT0VLHT is available at Aetrix Electronics and suitable for automotive body control, electric power steering, ADAS gateway, and onboard charger applications requiring stable component supply, long-term lifecycle assurance, and ASIL-B compliant silicon.

Supply support for FS32K144ULT0VLHT 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, high-performance automotive, industrial, and IoT solutions. Founded in 2006 as a spin-off from Philips, NXP holds leadership in automotive MCUs and radar technology.

The S32K1xx family - including FS32K144ULT0VLHT - was designed specifically for ASIL-B automotive applications such as body electronics, chassis control, and electrification systems, with built-in safety mechanisms and security engines aligned to ISO 26262 and EVITA standards.

FAQ

What is the maximum operating frequency of the FS32K144ULT0VLHT and under what conditions?

The FS32K144ULT0VLHT operates at up to 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 80 MHz is disabled in VLPR/VLPS modes, and CSEc or EEPROM operations are prohibited in HSRUN mode - FS32K144ULT0VLHT must switch to RUN mode (80 MHz) to execute those functions safely.

Does the FS32K144ULT0VLHT support CAN-FD, and how many instances are available?

Yes, the FS32K144ULT0VLHT integrates three independent FlexCAN modules, each supporting CAN-FD (ISO 11898-1) with data rates up to 5 Mbps. All three modules are fully accessible in the 144-pin LQFP package and support time-triggered communication, loopback self-test, and hardware message filtering - essential for automotive domain controller applications.

What safety mechanisms are implemented in the FS32K144ULT0VLHT to meet ASIL-B requirements?

The FS32K144ULT0VLHT implements multiple ASIL-B–aligned safety mechanisms: System MPU enforcing memory access rights per bus master, ECC on 2 MB flash and 256 KB SRAM, CRC acceleration module, dual watchdog (internal WDOG + external EWM), and lockstep-capable peripherals. These are documented in NXP's S32K1xx Functional Safety Manual and certified per ISO 26262 Part 5.

Can the FS32K144ULT0VLHT execute cryptographic operations while running at 112 MHz?

No. The FS32K144ULT0VLHT cannot execute CSEc (Cryptographic Services Engine) operations or EEPROM writes/erases in HSRUN mode (112 MHz). Attempting these functions triggers error flags. Per NXP's datasheet Rev. 15, FS32K144ULT0VLHT must transition to RUN mode (80 MHz) before initiating any CSEc or EEPROM activity to ensure reliable execution and prevent system faults.

What is the ADC resolution and channel count supported by the FS32K144ULT0VLHT?

The FS32K144ULT0VLHT integrates two independent 12-bit SAR ADC modules, each supporting up to 32 analog input channels (64 total), with 1 Msps sampling rate per module. Conversion results include hardware averaging and configurable offset/gain calibration - enabling precise current sensing, battery monitoring, and temperature acquisition in automotive subsystems.