NXP Semiconductors FS32K144MAT0VLHR

Overview

FS32K144MAT0VLHR 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 125 °C for engine control unit (ECU) and battery management applications.

For engineers reviewing the FS32K144MAT0VLHR datasheet, FS32K144MAT0VLHR pinout, FS32K144MAT0VLHR application, or FS32K144MAT0VLHR equivalent, key selection considerations include ASIL-B functional safety support, HSRUN/RUN mode switching constraints for EEPROM/CSEc operations, 144-pin LQFP package compatibility, and FlexIO-based protocol emulation capability.

Technical Context

The FS32K144MAT0VLHR implements a dual-core architecture with Arm Cortex-M4F (primary) and optional M0+ co-processor support, executing at up to 112 MHz in HSRUN mode (with 1.25 DMIPS/MHz) and 80 MHz in RUN mode. Its clock system integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling precise timing control for real-time automotive tasks.

Power management includes five low-power modes (HSRUN, RUN, STOP, VLPR, VLPS), with PMC-enforced restrictions: CSEc cryptographic operations and FlexNVM writes/erases are prohibited in HSRUN mode and require explicit transition to 80 MHz RUN mode. Memory protection uses NXP's system MPU at the AXBS-Lite crossbar level-not Arm Core MPU-enforcing access rights per master (Core, DMA, Ethernet).

Key Specifications

Pinout & Package

FS32K144MAT0VLHR is housed in a 144-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions align with S32K14x family I/O multiplexing; all GPIOs support interrupt capability and configurable pull-up/down.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K146HAT0VLHR and S32K144HAT0VLHR, FS32K144MAT0VLHR uniquely delivers 112 MHz HSRUN operation within a 125 °C ambient envelope-making it the only option among the three for thermally constrained, performance-intensive engine control applications requiring both speed and thermal resilience.

Availability

FS32K144MAT0VLHR is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and battery management systems requiring stable component supply, long-term automotive lifecycle support, and ASIL-B functional safety certification.

Supply support for FS32K144MAT0VLHR 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 Arm-based MCUs and functional safety certification.

The S32K1xx product line targets automotive electronic control units requiring ASIL-B compliance, featuring integrated safety mechanisms, cryptographic security, and robust real-time performance for powertrain, chassis, and body applications.

FAQ

What is the maximum operating frequency of the FS32K144MAT0VLHR and under what conditions?

The FS32K144MAT0VLHR achieves 112 MHz in HSRUN mode, but only when ambient temperature is ≤125 °C and supply voltage is ≥2.7 V. Operation above 125 °C ambient is unsupported; at 125 °C, the device must run in RUN mode at 80 MHz. This constraint is enforced by hardware and documented in the thermal characteristics table of the datasheet.

Does the FS32K144MAT0VLHR support CAN-FD, and how many instances are available?

Yes, the FS32K144MAT0VLHR integrates three FlexCAN modules, each supporting CAN-FD (ISO 11898-1). All three support data rates up to 5 Mbps in FD mode and are independently configurable for different bit timing, message filtering, and RAM allocation-enabling concurrent high-speed communication on powertrain, chassis, and body networks.

Can the FS32K144MAT0VLHR execute CSEc cryptographic operations while running at 112 MHz?

No. The FS32K144MAT0VLHR explicitly prohibits CSEc (Cryptographic Services Engine) execution and FlexNVM write/erase operations in HSRUN mode (112 MHz). The device must transition to RUN mode (80 MHz) before initiating these functions; attempting them in HSRUN triggers error flags and halts secure operation-this behavior is hardwired and non-bypassable.

What package type and pin count does the FS32K144MAT0VLHR use?

The FS32K144MAT0VLHR uses a 144-pin LQFP package (16 mm × 16 mm, 0.5 mm pitch) with exposed thermal pad. It is pin-compatible with other S32K14x devices in the same package variant, enabling hardware reuse across performance tiers while maintaining identical footprint and thermal interface requirements.

How does the memory protection architecture work in the FS32K144MAT0VLHR?

The FS32K144MAT0VLHR implements NXP's system MPU at the AXBS-Lite crossbar switch-not the Arm Core MPU-granting per-master (CPU, DMA, Ethernet) access rights to protected memory regions. This allows fine-grained isolation of safety-critical code/data from non-safety partitions, meeting ASIL-B requirements without relying on core-level enforcement alone.