NXP Semiconductors FS32K142HAT0VLLR

Overview

FS32K142HAT0VLLR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller designed for real-time control in safety-critical ECUs. It operates at up to 112 MHz (HSRUN mode), features 256 KB flash with ECC, 256 KB SRAM with ECC, and supports -40 °C to +105 °C ambient operation in a 100-pin LQFP package. It integrates FlexCAN with optional CAN-FD, dual 12-bit ADCs (1 Msps), and CSEc cryptographic engine - deployed in body control modules and chassis domain controllers.

For engineers reviewing the FS32K142HAT0VLLR datasheet, FS32K142HAT0VLLR pinout, FS32K142HAT0VLLR application, or FS32K142HAT0VLLR equivalent, this page delivers verified core architecture details, validated power mode behavior, confirmed peripheral availability per package, and precise thermal derating guidance for ASIL-B–capable designs.

Technical Context

The FS32K142HAT0VLLR implements an Arm Cortex-M4F core with single-precision FPU and DSP extensions, executing at 112 MHz in HSRUN mode (1.25 DMIPS/MHz) and 80 MHz in RUN mode. Its memory subsystem includes ECC-protected 256 KB program flash, 256 KB SRAM, and 4 KB FlexRAM usable as EEPROM emulation - with CSEc security operations requiring mode switch from HSRUN to RUN.

Peripherals are managed via AXBS-Lite crossbar switch and eDMA with DMAMUX (63 request sources). Clocking uses SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz); power management supports five modes (HSRUN, RUN, STOP, VLPR, VLPS), with HSRUN disabled for CSEc/EEPROM writes per hardware constraint.

Key Specifications

Pinout & Package

FS32K142HAT0VLLR is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined by multiplexed I/O pads supporting GPIO, UART, SPI, I2C, CAN, ADC, and timer capture/compare signals. Power domains include VDD/VDDA (2.7–5.5 V), VREFH/VREFL, and dedicated ground pins for analog/digital isolation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K142HAT0VLLR, FS32K144HAT0MLLR offers scalable memory/peripherals for future-proofing, while FS32K142HFT0VLLR trades peak frequency for extended thermal qualification - both require identical PCB layout but differ in runtime configuration and safety certification scope.

Availability

FS32K142HAT0VLLR is available at Aetrix Electronics and suitable for automotive body electronics, chassis control systems, and electric power steering applications requiring stable component supply across multi-year production cycles.

Supply support for FS32K142HAT0VLLR 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-grade reliability.

The S32K1xx family was developed specifically for ASIL-B–compliant automotive microcontrollers, emphasizing real-time determinism, hardware-based security (CSEc), and robust operation across extended temperature ranges in harsh ECU environments.

FAQ

What is the maximum operating frequency of the FS32K142HAT0VLLR, and under what conditions is it valid?

The FS32K142HAT0VLLR achieves 112 MHz in HSRUN mode, but only within its specified ambient temperature range of -40 °C to +105 °C. This frequency is invalid for CSEc cryptographic operations or EEPROM emulation - those require switching to 80 MHz RUN mode per hardware constraint documented in the S32K1xx Data Sheet Rev. 15. The FS32K142HAT0VLLR must be configured accordingly in software to avoid error flag assertion.

Does the FS32K142HAT0VLLR support CAN-FD, and how is it enabled?

Yes, the FS32K142HAT0VLLR supports CAN-FD through its two FlexCAN modules, with FD capability enabled via firmware configuration of the MCR register's FDEN bit and proper bit-timing setup. Physical layer compliance requires an external CAN-FD transceiver (e.g., TJA1043 or TCAN1042). The FS32K142HAT0VLLR does not integrate transceiver circuitry - it provides only the protocol controller logic.

What memory protection mechanisms are implemented in the FS32K142HAT0VLLR?

The FS32K142HAT0VLLR implements NXP's system-level Memory Protection Unit (MPU), which enforces access rights at the AXBS-Lite crossbar switch for all bus masters (CPU, DMA, Ethernet). Unlike Arm Core MPU, this system MPU protects against unauthorized access by any master - critical for ASIL-B partitioning. ECC is applied to both 256 KB flash and 256 KB SRAM to detect and correct single-bit errors in automotive environments.

Can the FS32K142HAT0VLLR operate from a 3.3 V supply, and are there any limitations?

Yes, the FS32K142HAT0VLLR supports 2.7 V to 5.5 V supply range, including 3.3 V nominal operation. However, at 3.3 V, maximum frequency is limited to 80 MHz (RUN mode only); 112 MHz HSRUN mode requires ≥4.5 V per electrical specifications. ADC accuracy and I/O drive strength also scale with supply voltage - full 12-bit linearity is guaranteed only above 4.5 V, though functional operation remains valid down to 2.7 V.

What debug interfaces does the FS32K142HAT0VLLR support, and are they accessible in all power modes?

The FS32K142HAT0VLLR supports Serial Wire Debug (SWD) via SWD_CLK and SWD_DIO pins, compliant with ARM CoreSight standards. Debug access is available in RUN, STOP, and VLPR modes, but not in HSRUN or VLPS - entering debug halts execution and forces mode transition. Trace capabilities (ITM, DWT, TPIU) require SWO pin routing and are active only in RUN/HSRUN modes with appropriate clock gating enabled.