NXP Semiconductors FS32K142HFT0VLFR

Overview

FS32K142HFT0VLFR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with HSRUN mode up to 112 MHz, 512 KB flash, 64 KB SRAM, and integrated CSEc security engine. It operates from 2.7 V to 5.5 V across −40 °C to +105 °C ambient, supporting CAN-FD, LPUART, LPSPI, and FlexIO for body control module and gateway applications.

For engineers reviewing the FS32K142HFT0VLFR datasheet, FS32K142HFT0VLFR pinout, FS32K142HFT0VLFR application, or FS32K142HFT0VLFR equivalent, this page delivers verified core architecture, memory mapping, power mode constraints, peripheral availability per package, and real-world safety/security trade-offs - all specific to the VLFR (−40 °C to +105 °C, LQFP-48) variant.

Technical Context

The FS32K142HFT0VLFR implements a dual-core capable architecture with Arm Cortex-M4F CPU (112 MHz HSRUN / 80 MHz RUN), FPU, DSP extensions, and NVIC. Its clock system integrates SOSC (4–40 MHz), FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and SPLL (up to 112 MHz), with automatic mode switching required for CSEc or EEPROM operations.

Power management includes five modes (HSRUN, RUN, STOP, VLPR, VLPS), where CSEc execution and FlexNVM writes are prohibited in HSRUN mode and require transition to RUN mode (80 MHz). Memory protection uses NXP's system MPU at crossbar level-not Arm Core MPU-enforcing access rights per master (CPU, DMA, Ethernet).

Key Specifications

Pinout & Package

FS32K142HFT0VLFR is housed in a 48-pin LQFP (LF48) package with 0.5 mm pitch, 7 mm × 7 mm body, and exposed thermal pad. Pinout conforms to S32K14x family assignment for 48-pin LQFP, supporting up to 43 GPIOs, 2×12-bit ADC (16-channel total), 3×LPUART, 3×LPSPI, 2×FlexCAN (1 with CAN-FD), and SWD debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K142HFT0VLHT and S32K144HFT0VLFR, FS32K142HFT0VLFR delivers optimal balance of performance, security, and pin count for mid-tier automotive controllers - retaining full CSEc and CAN-FD capability while minimizing layout complexity and BOM cost in 48-pin LQFP.

Availability

FS32K142HFT0VLFR is available at Aetrix Electronics and suitable for automotive body control modules, gateway units, electric power steering interfaces, and ADAS subsystems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for FS32K142HFT0VLFR 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 focused on automotive, industrial, IoT, and communications applications, with deep expertise in secure microcontrollers and radar technology.

The S32K1xx family is designed specifically for automotive electronic control units (ECUs), emphasizing functional safety (ASIL-B), security (SHE/CSEc), and low-power operation in harsh environments - targeting body electronics, chassis, and gateway systems.

FAQ

What is the maximum operating frequency of the FS32K142HFT0VLFR and under what conditions?

The FS32K142HFT0VLFR achieves 112 MHz in HSRUN mode, but only when ambient temperature is ≤105 °C and supply voltage is ≥2.7 V. Operation at 112 MHz prohibits CSEc execution or FlexNVM writes - those functions require switching to RUN mode at 80 MHz. This constraint is enforced by hardware and documented in the S32K1xx Data Sheet Rev. 15.

Does the FS32K142HFT0VLFR support CAN-FD, and which channels are enabled in the 48-pin LQFP package?

Yes, the FS32K142HFT0VLFR supports CAN-FD on one FlexCAN channel (CAN0) in the 48-pin LQFP package. The second FlexCAN (CAN1) is not routed to pins in this package variant. CAN-FD compliance follows ISO 11898-1 and supports data rates up to 5 Mbps with flexible data phase arbitration.

What memory resources are allocated in the FS32K142HFT0VLFR, and how is ECC applied?

The FS32K142HFT0VLFR includes 512 KB of program flash with end-to-end ECC, 64 KB of SRAM with ECC, 4 KB of FlexRAM (configurable as SRAM or EEPROM emulation), and 2 KB of FlexNVM for data storage. ECC coverage is hardware-managed and transparent to software, correcting single-bit errors and detecting double-bit faults in both flash and SRAM.

Can the FS32K142HFT0VLFR operate at 3.3 V supply, and are there any restrictions?

Yes, the FS32K142HFT0VLFR operates fully across 2.7 V to 5.5 V, including standard 3.3 V rails. No restrictions apply at 3.3 V - all peripherals, clocks, and security features function identically. The device does not require separate VDDA or VREFH supplies beyond standard decoupling, and VDD–VDDA differential must remain within ±0.1 V.

How many ADC channels are accessible on the FS32K142HFT0VLFR in 48-pin LQFP, and what is their resolution and speed?

The FS32K142HFT0VLFR provides access to 16 analog input channels via its dual 12-bit SAR ADC modules (ADC0 and ADC1), with 1 Msps aggregate sampling rate per module. In the 48-pin LQFP package, all 16 channels are routed to dedicated pins - no multiplexing reduction - enabling simultaneous sampling of torque, position, and current signals in EPS applications.