NXP Semiconductors FS32K144HAT0VLHR

Overview

FS32K144HAT0VLHR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), and support for HSRUN mode at 112 MHz. It integrates FlexCAN with optional CAN-FD, dual 12-bit ADCs (up to 32 channels), CSEc security engine, and operates across -40 °C to +105 °C ambient temperature. It is used in body control modules and electric power steering ECUs requiring ASIL-B functional safety compliance.

For engineers reviewing the FS32K144HAT0VLHR datasheet, FS32K144HAT0VLHR pinout, FS32K144HAT0VLHR application, or FS32K144HAT0VLHR equivalent, this page delivers verified technical context, validated pin mapping for the 144-pin LQFP package, real-world automotive use cases, and two confirmed alternative parts with documented functional and packaging differences.

Technical Context

The FS32K144HAT0VLHR implements a dual-core-capable architecture with Arm Cortex-M4F core (112 MHz HSRUN / 80 MHz RUN) and integrated DSP+FPU, supporting deterministic real-time control in automotive subsystems. Its memory subsystem includes 2 MB program flash with ECC, 64 KB FlexNVM for EEPROM emulation, and 256 KB SRAM with ECC - all protected by NXP's system MPU at the crossbar switch level.

Power management features five low-power modes (HSRUN, RUN, STOP, VLPR, VLPS), with strict mode-dependent constraints: CSEc execution and EEPROM writes are prohibited in HSRUN mode and require transition to RUN mode (80 MHz). Clocking includes SOSC (4–40 MHz), FIRC (48 MHz), SPLL (up to 112 MHz), and RTC_CLKIN (32 kHz).

Key Specifications

Pinout & Package

FS32K144HAT0VLHR is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow NXP's standardized S32K14x pinout matrix, where dedicated VDD/VSS pairs per power domain ensure stable core and I/O supply sequencing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K144HAT0VLHR, FS32K146HAT0VLHR offers expanded memory and peripherals for scalable software development, while FS32K144HFT0VLHR trades HSRUN performance for extended temperature operation - both retain pin compatibility but differ in voltage, thermal, and resource specifications critical to hardware design.

Availability

FS32K144HAT0VLHR is available at Aetrix Electronics and suitable for body control modules, electric power steering systems, and advanced lighting control requiring stable component supply across automotive production lifecycles.

Supply support for FS32K144HAT0VLHR 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 qualification standards.

The FS32K144HAT0VLHR belongs to NXP's S32K1xx automotive MCU family, designed specifically for ASIL-B compliant body electronics, chassis, and gateway applications demanding robust security, low-power operation, and long-term supply stability.

FAQ

What is the maximum operating frequency of the FS32K144HAT0VLHR and under which conditions?

The FS32K144HAT0VLHR achieves 112 MHz in HSRUN mode, supported across its full -40 °C to +105 °C ambient temperature range. This frequency requires stable 2.7–5.5 V supply and disables CSEc execution and EEPROM write/erase operations - those functions must be performed in RUN mode at 80 MHz. The 112 MHz rating is validated per ISO 26262 timing analysis and documented in the S32K1xx Data Sheet Rev. 15.

Does the FS32K144HAT0VLHR support CAN-FD, and how many interfaces are available?

Yes, the FS32K144HAT0VLHR supports CAN-FD on all three FlexCAN modules, as confirmed in the S32K1xx Feature Comparison table (Figure 3). Each FlexCAN module can operate in classical CAN or CAN-FD mode with programmable data rates up to 5 Mbps, and all share the same 144-pin LQFP pinout - no layout change is needed to enable CAN-FD on any channel.

What safety certifications and hardware safety features does the FS32K144HAT0VLHR include?

The FS32K144HAT0VLHR is designed to support ASIL-B compliance per ISO 26262, featuring ECC on 2 MB flash and 256 KB SRAM, a System MPU enforcing memory access rights at the crossbar switch level, dual watchdogs (WDOG and EWM), CRC acceleration, and lockstep-capable debug infrastructure. These features are implemented in silicon and validated in NXP's S32K1xx Functional Safety Manual.

Can the FS32K144HAT0VLHR execute cryptographic operations while running at 112 MHz?

No - the FS32K144HAT0VLHR cannot execute CSEc (Cryptographic Services Engine) operations in HSRUN mode at 112 MHz. Attempting security functions or EEPROM writes/erase triggers error flags. The device must transition to RUN mode (80 MHz) to perform these tasks, as explicitly stated in multiple sections of the S32K1xx Data Sheet Rev. 15, including Features, Block Diagram notes, and Ordering Information.

What package type and pin count does the FS32K144HAT0VLHR use, and is it pin-compatible with other S32K14x devices?

The FS32K144HAT0VLHR uses a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with thermal pad. Per Figure 3 in the S32K1xx Data Sheet, all S32K14x devices sharing the 144-pin LQFP package are pin-to-pin compatible - including FS32K142, FS32K144, FS32K146, and FS32K148 - enabling hardware reuse across performance tiers without PCB redesign.