NXP Semiconductors FS32K144UAT0VLFT

Overview

FS32K144UAT0VLFT 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 (32-channel total), 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 FS32K144UAT0VLFT datasheet, FS32K144UAT0VLFT pinout, FS32K144UAT0VLFT application, or FS32K144UAT0VLFT equivalent, this page delivers verified package mapping (144-pin LQFP), validated power modes (HSRUN/RUN/STOP/VLPR/VLPS), confirmed CAN-FD timing compliance, real-world safety features (ASIL-B capable MPU, CRC, WDOG, EWM), and precise memory partitioning (FlexNVM for EEPROM emulation).

Technical Context

The FS32K144UAT0VLFT implements a dual-core execution environment via Arm Cortex-M4F core with integrated FPU and DSP extensions, supporting deterministic real-time control at up to 112 MHz in HSRUN mode. Its AXBS-Lite crossbar switch enables concurrent access by CPU, eDMA, and Ethernet MAC to protected memory regions managed by NXP's system MPU - not Arm's core MPU.

Power management is governed by the PMC, enforcing strict mode transitions: CSEc cryptographic operations and FlexNVM EEPROM emulation are prohibited in HSRUN mode and require explicit switch to RUN mode (80 MHz). Clocking relies on SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with external 4–40 MHz crystal support via SOSC.

Key Specifications

Pinout & Package

FS32K144UAT0VLFT is housed in a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized S32K14x signal multiplexing scheme, supporting full peripheral functionality including dual ADC groups, three CAN transceivers, and 156 GPIOs (with interrupt capability).

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K144UAT0VLFT, S32K144HAT0MLFTR trades peak performance for extended temperature range, while FS32K146UAT0VLFT adds Ethernet and memory headroom without changing layout - both retain identical peripheral sets and CSEc security architecture.

Availability

FS32K144UAT0VLFT is available at Aetrix Electronics and suitable for automotive body electronics, electric power steering, ADAS sensor hubs, and onboard charger controllers requiring stable component supply across long production lifecycles.

Supply support for FS32K144UAT0VLFT 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 qualification standards.

The S32K1xx family was designed specifically for ASIL-B automotive applications - delivering integrated safety mechanisms (MPU, ECC, WDOG, EWM), security (CSEc), and real-time performance in a scalable, pin-compatible portfolio.

FAQ

What is the maximum operating frequency of the FS32K144UAT0VLFT and under what conditions?

The FS32K144UAT0VLFT achieves up to 112 MHz in HSRUN mode, enabled only when ambient temperature is within -40 °C to 105 °C and supply voltage remains between 2.7 V and 5.5 V. Operation above 80 MHz requires VDD ≥ 2.97 V when PLL is engaged. The FS32K144UAT0VLFT must drop to RUN mode (80 MHz) to execute CSEc cryptographic functions or FlexNVM EEPROM emulation.

Does the FS32K144UAT0VLFT support CAN-FD, and how many instances are available?

Yes, the FS32K144UAT0VLFT integrates three independent FlexCAN modules, each supporting CAN-FD (ISO 11898-1) with bit-rate switching up to 5 Mbps. All three modules are fully functional in the 144-pin LQFP package, with dedicated TX/RX pins mapped to separate physical CAN transceiver interfaces.

What memory protection mechanisms does the FS32K144UAT0VLFT implement for functional safety?

The FS32K144UAT0VLFT implements NXP's system-level Memory Protection Unit (MPU) at the AXBS-Lite crossbar switch, assigning distinct access rights per master (CPU, eDMA, Ethernet) to memory regions. This complements ECC on flash and SRAM, CRC module, internal WDOG, and external EWM - collectively enabling ASIL-B compliance per ISO 26262.

Can the FS32K144UAT0VLFT perform secure boot and cryptographic operations in HSRUN mode?

No. The FS32K144UAT0VLFT prohibits CSEc (Cryptographic Services Engine) operations - including secure boot validation, AES encryption, and key derivation - while in HSRUN mode (112 MHz). The device must transition to RUN mode (80 MHz) to execute any CSEc command or FlexNVM write/erase, as confirmed in the official datasheet revision 15.

What is the ADC configuration supported by the FS32K144UAT0VLFT?

The FS32K144UAT0VLFT includes two independent 12-bit SAR ADC modules, each supporting up to 16 analog input channels (32 total), 1 Msps sample rate, hardware trigger synchronization via PDB, and flexible scan sequencing. Both modules feature configurable reference voltages (VREFH/VREFL) and operate across the full -40 °C to 105 °C temperature range.