NXP Semiconductors FS32K144UST0VLHT

Overview

FS32K144UST0VLHT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM, and integrated CSEc security engine. It operates at up to 112 MHz in HSRUN mode (−40 °C to +105 °C), supports FlexCAN with CAN-FD, dual 12-bit ADCs (1 Msps), and IEEE-1588 Ethernet - deployed in vehicle body control modules requiring ASIL-B functional safety compliance.

For engineers reviewing the FS32K144UST0VLHT datasheet, FS32K144UST0VLHT pinout, FS32K144UST0VLHT application, or FS32K144UST0VLHT equivalent, key selection criteria include its 144-pin LQFP package, 112 MHz HSRUN performance with FPU, ECC-protected memory, CSEc cryptographic acceleration, and support for low-power LPUART/LPSPI/LPI2C interfaces in automotive ECU designs.

Technical Context

The FS32K144UST0VLHT implements a dual-core execution environment via Arm Cortex-M4F core with DSP extensions and single-precision FPU, paired with configurable NVIC and DWT/ITM debug infrastructure. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling dynamic power-mode transitions across HSRUN, RUN, STOP, VLPR, and VLPS.

Memory architecture includes 2 MB program flash with ECC, 64 KB FlexNVM with EEPROM emulation, 256 KB SRAM with ECC, and 4 KB FlexRAM usable as SRAM or EEPROM backup. Safety features include System MPU (crossbar-level memory protection), CRC module, WDOG/EWM watchdogs, and CSEc implementing SHE-compliant cryptographic primitives - all validated for ASIL-B compliance per ISO 26262.

Key Specifications

Pinout & Package

FS32K144UST0VLHT 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 S32K14x family layout, supporting full peripheral mapping including three FlexCAN channels, dual ADC modules, and IEEE-1588 Ethernet MAC interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K144HFT0VLHT, FS32K144UST0VLHT delivers 40% higher CPU throughput in HSRUN mode for time-critical control loops; versus MPC5744P, it offers native CAN-FD, IEEE-1588 Ethernet, and hardware-accelerated cryptography - reducing software overhead in secure, high-speed automotive networks.

Availability

FS32K144UST0VLHT is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, vehicle gateways, and ADAS sensor hubs requiring stable component supply across extended product lifecycles.

Supply support for FS32K144UST0VLHT 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 automotive-grade reliability.

The S32K1xx family was designed specifically for automotive electronic control units requiring ASIL-B compliance, featuring integrated safety mechanisms, cryptographic acceleration, and robust power management for under-hood deployment.

FAQ

What is the maximum operating frequency of the FS32K144UST0VLHT and under what conditions?

The FS32K144UST0VLHT achieves a maximum operating frequency of 112 MHz in HSRUN mode, validated across −40 °C to +105 °C ambient temperature. This mode requires VDD ≥ 2.7 V and disables CSEc execution and EEPROM writes - those operations must occur in RUN mode (80 MHz). The device automatically transitions between modes via PMC register configuration.

Does the FS32K144UST0VLHT support CAN-FD, and how many channels are available?

Yes, the FS32K144UST0VLHT integrates three independent FlexCAN modules, each supporting CAN-FD per ISO 11898-1 with data rates up to 5 Mbps. All three channels are fully accessible in the 144-pin LQFP package, with dedicated TX/RX pins routed to separate CAN transceivers - enabling multi-domain communication in gateway or domain controller applications.

What safety certifications apply to the FS32K144UST0VLHT?

The FS32K144UST0VLHT is designed to support ASIL-B compliance per ISO 26262, with hardware safety mechanisms including ECC on flash and SRAM, System MPU for crossbar-level memory protection, dual watchdogs (WDOG and EWM), CRC module, and lockstep-capable peripherals. NXP provides FMEDA reports and safety manuals to support customer safety case development.

How does the CSEc (Cryptographic Services Engine) function in the FS32K144UST0VLHT?

The CSEc in FS32K144UST0VLHT implements SHE-compliant cryptographic functions including AES-128/256 encryption/decryption, SHA-256 hashing, and ECDSA signature generation/verification. It operates independently of the main CPU, accelerating secure boot, key provisioning, and OTA update authentication - but requires switching from HSRUN to RUN mode (80 MHz) for execution due to hardware arbitration constraints.

What package type and pin count does the FS32K144UST0VLHT use?

The FS32K144UST0VLHT uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. This package supports full peripheral mapping including all three FlexCAN channels, dual 12-bit ADC modules, IEEE-1588 Ethernet MAC, and 156 GPIOs - making it suitable for space-constrained automotive ECU designs requiring high I/O density and thermal performance.