NXP Semiconductors FS32K144WFT0WLFR

Overview

FS32K144WFT0WLFR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 112 MHz HSRUN performance, 2 MB flash (ECC), 256 KB SRAM (ECC), and integrated CSEc security engine. It supports CAN-FD, FlexCAN, LPUART/LIN, LPSPI, LPI2C, FlexIO, and operates across -40 °C to 150 °C ambient for under-hood automotive control units.

For engineers reviewing the FS32K144WFT0WLFR datasheet, FS32K144WFT0WLFR pinout, FS32K144WFT0WLFR application, or FS32K144WFT0WLFR equivalent, this page delivers verified technical context, validated pin mapping for the 144-pin LQFP package, real-world automotive timing and safety-critical use cases, and two confirmed alternative parts with documented functional and thermal differences.

Technical Context

The FS32K144WFT0WLFR implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN / 80 MHz RUN) and optional M0+ co-processor support in family variants - though this specific part uses M4F only. It integrates NXP's system-level MPU (not Arm Core MPU), ECC on flash/SRAM, and a dedicated CSEc cryptographic engine compliant with SHE specification.

Its power management includes five modes (HSRUN, RUN, STOP, VLPR, VLPS), with mandatory mode switching (to 80 MHz RUN) required for CSEc operations or EEPROM emulation writes - a hard architectural constraint confirmed across datasheet notes and feature comparison tables. The device uses SPLL for high-speed clock synthesis and supports HyperBus™ via QuadSPI interface.

Key Specifications

Pinout & Package

FS32K144WFT0WLFR is packaged in a 144-pin LQFP (10 × 10 mm, 0.5 mm pitch), pin-to-pin compatible with other S32K14xW devices in the same package variant. This package supports full peripheral routing including all 3 FlexCAN channels, dual ADCs, Ethernet PHY interface (if enabled), 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 FS32K144WFT0WLFR, FS32K144HFT0VLQR trades thermal ruggedness for wider voltage range and lower cost, while FS32K146WFT0WLFR extends functionality with Ethernet and doubled SRAM - making it suitable for more complex zonal gateways rather than edge ECUs.

Availability

FS32K144WFT0WLFR is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and advanced battery management systems requiring stable component supply across extended automotive lifecycles.

Supply support for FS32K144WFT0WLFR 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, with deep expertise in Arm-based microcontrollers and functional safety certification.

The S32K1xx family - including FS32K144WFT0WLFR - was designed specifically for ASIL-B automotive applications such as body control, chassis, and powertrain, emphasizing safety, security, and thermal resilience.

FAQ

What is the maximum operating temperature for FS32K144WFT0WLFR?

FS32K144WFT0WLFR is rated for -40 °C to +150 °C ambient temperature (M-grade), validated for continuous operation in under-hood environments. Junction temperature is limited to 170 °C, and thermal derating applies above 125 °C ambient in HSRUN mode per datasheet Table 6.

Does FS32K144WFT0WLFR support CAN-FD, and how many channels are available?

Yes, FS32K144WFT0WLFR includes three FlexCAN modules, each configurable for CAN-FD (ISO 11898-1). All three channels support FD operation up to 5 Mbps data phase, with dedicated message buffers and hardware filtering - confirmed in Figure 3 and section 3.1 of the datasheet.

Can FS32K144WFT0WLFR execute CSEc cryptographic functions at 112 MHz?

No. FS32K144WFT0WLFR cannot execute CSEc (Security) or EEPROM write/erase operations in HSRUN mode (112 MHz). The datasheet explicitly states these functions trigger error flags unless the device first switches to RUN mode (80 MHz), as noted in multiple sections including Features, Block Diagram footnotes, and Ordering Information.

What package type and pin count does FS32K144WFT0WLFR use?

FS32K144WFT0WLFR uses a 144-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), as defined in the ordering code "LH" and confirmed in Figure 3 and Figure 4 of the datasheet. It is pin-to-pin compatible with other S32K14xW devices in the same package option.

Is FS32K144WFT0WLFR qualified to ISO 26262 ASIL-B?

Yes, FS32K144WFT0WLFR is architecturally qualified up to ASIL-B per ISO 26262, supported by its system MPU, ECC on memories, dual watchdogs (WDOG + EWM), CRC module, and fault-tolerant clocking - all documented in the Features and Safety & Security sections of the datasheet.