NXP Semiconductors FS32K116LIT0MFMT

Overview

FS32K116LIT0MFMT from NXP Semiconductors is an automotive-grade Arm® Cortex-M0+ microcontroller designed for safety-critical body electronics and powertrain control. It operates at up to 48 MHz, supports -40 °C to 125 °C ambient temperature, integrates 128 KB flash with ECC, 25 KB SRAM (including FlexRAM), and features CSEc security engine, 12-bit ADC, and FlexCAN with LIN support.

For engineers reviewing the FS32K116LIT0MFMT datasheet, FS32K116LIT0MFMT pinout, FS32K116LIT0MFMT application, or FS32K116LIT0MFMT equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases in automotive subsystems, and two validated alternative parts with functional and thermal distinctions.

Technical Context

The FS32K116LIT0MFMT implements a single-core Arm Cortex-M0+ CPU with Thumb®-2 ISA, operating at up to 48 MHz in RUN mode and supporting HSRUN mode only on M4F variants - not applicable here. Its memory subsystem includes 128 KB program flash with ECC, 4 KB FlexRAM usable as SRAM or EEPROM emulation, and 25 KB total system RAM (21 KB SRAM + 4 KB FlexRAM).

Power management uses PMC with five low-power modes (RUN, STOP, VLPR, VLPS, LLS), while safety architecture includes System MPU, CRC module, WDOG, EWM, and CSEc cryptographic engine compliant with SHE specification. Peripherals include one 12-bit ADC (up to 32 channels), one FlexCAN (LIN-capable), three LPUART/LIN modules, two LPSPI, one LPI2C, eight FTM channels, LPIT, LPTMR, RTC, and TRGMUX.

Key Specifications

Pinout & Package

FS32K116LIT0MFMT is packaged in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), pin-compatible with other S32K11x devices in the same footprint. This package supports full I/O access for core peripherals including CAN, UART, SPI, ADC, and GPIO with dedicated power/ground pins for noise-sensitive analog domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K116LIT0MFMT, FS32K142HIT0MLQT offers higher compute throughput and expanded connectivity but increases BOM cost and layout complexity, while MC9S12XEP100MALR provides drop-in replacement for aging S12X systems at the expense of modern security and power efficiency.

Availability

FS32K116LIT0MFMT is available at Aetrix Electronics and suitable for automotive body control, engine sensor interface, electric power steering subsystems, and transmission control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for FS32K116LIT0MFMT 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 functional safety and embedded security.

The S32K1xx family was designed specifically for ASIL-B automotive applications including body electronics, chassis control, and powertrain subsystems, emphasizing robustness, security, and low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the FS32K116LIT0MFMT?

The FS32K116LIT0MFMT operates at a maximum frequency of 48 MHz in RUN mode. Unlike M4F variants in the S32K14x series, it does not support HSRUN mode or PLL-based frequency scaling. This fixed-clock architecture simplifies timing analysis and meets deterministic latency requirements for body control applications. The FS32K116LIT0MFMT achieves consistent 48 MHz performance across its full -40 °C to 125 °C operating range.

Does the FS32K116LIT0MFMT support CAN FD?

No, the FS32K116LIT0MFMT does not support CAN FD. It integrates a single FlexCAN module compliant with ISO 11898-1 (Classical CAN), with LIN protocol support enabled through its LPUART peripherals. CAN FD capability is available only in S32K14x-series devices such as FS32K144 or FS32K146. For FS32K116LIT0MFMT designs requiring higher bandwidth, dual Classical CAN channels or LIN clusters are recommended alternatives.

What memory protection mechanisms are implemented in the FS32K116LIT0MFMT?

The FS32K116LIT0MFMT implements NXP's System MPU (Memory Protection Unit) at the crossbar switch level, enforcing access rights for all masters (CPU, DMA). It also includes ECC on 128 KB flash and 21 KB SRAM, CRC module for data integrity checks, and dual watchdogs (WDOG and EWM) for fault detection. These mechanisms collectively satisfy ASIL-B requirements per ISO 26262 for automotive control units, and are fully documented in the S32K1xx Reference Manual.

Can the FS32K116LIT0MFMT execute secure boot from internal flash?

Yes, the FS32K116LIT0MFMT supports secure boot using its integrated Cryptographic Services Engine (CSEc). The CSEc validates digital signatures of boot images stored in internal flash using SHA-256 and AES-128-GCM, ensuring only authenticated firmware executes. Secure boot configuration is enforced via immutable fuses programmed during manufacturing, and the FS32K116LIT0MFMT's ECC-protected flash prevents bit-flip corruption of signed images during long-term operation.

What is the ADC resolution and channel count supported by the FS32K116LIT0MFMT?

The FS32K116LIT0MFMT integrates a 12-bit successive approximation register (SAR) ADC with up to 32 analog input channels. It achieves ±1 LSB integral nonlinearity across its full operating temperature range (-40 °C to 125 °C) when used with proper PCB layout and decoupling. The ADC supports hardware-triggered conversions via TRGMUX, enabling synchronization with timer events or external signals - critical for engine timing and motor control applications.