NXP Semiconductors FS32K148HAT0MLQR

Overview

FS32K148HAT0MLQR 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/80 MHz RUN operation, and integrated CSEc security engine. It supports CAN-FD, FlexCAN (3x), LPUART/LIN (3x), LPSPI (3x), LPI2C (2x), FlexIO, QuadSPI/HyperBus™, Ethernet MAC (10/100 Mbps), and SAI - deployed in vehicle body control modules requiring ASIL-B functional safety compliance.

For engineers reviewing the FS32K148HAT0MLQR datasheet, FS32K148HAT0MLQR pinout, FS32K148HAT0MLQR application, or FS32K148HAT0MLQR equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use-value analysis for automotive ECU design, and validated alternative part comparisons - all grounded in NXP's official S32K1xx Rev. 15 datasheet and orderable part number list.

Technical Context

The FS32K148HAT0MLQR implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN, 80 MHz RUN) and optional M0+ co-processor support per family spec, featuring integrated FPU, DSP extensions, and NVIC with configurable priority levels. Its clock system includes SOSC (4–40 MHz), FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and SPLL (up to 112 MHz), with dedicated TCLK (20 MHz) and SWD_CLK (25 MHz) domains.

Power management uses PMC with five defined modes: HSRUN, RUN, STOP, VLPR, VLPS - where CSEc execution and EEPROM write/erase are explicitly restricted to RUN mode (80 MHz) due to hardware arbitration constraints. Memory subsystem includes ECC-protected 2 MB flash, 64 KB FlexNVM (EEPROM emulation), 256 KB SRAM, 4 KB FlexRAM, and 4 KB code cache, all accessible via AXBS-Lite crossbar with eDMA (16-channel) and DMAMUX routing.

Key Specifications

Pinout & Package

FS32K148HAT0MLQR is packaged in a 144-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch, 20 × 20 mm body size, and exposed thermal pad. This package supports full peripheral availability including all 3 FlexCAN modules, Ethernet PHY interface pins, and dual SAI channels - confirmed as pin-to-pin compatible with other S32K14x devices in same package footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K148HAT0MLQR, FS32K146HAT0MLQR reduces memory and connectivity to lower cost while retaining pin compatibility, whereas FS32K148HRT0MLQR extends thermal capability at the expense of supply voltage range - neither is drop-in replaceable without design review.

Availability

FS32K148HAT0MLQR is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor hubs, electric power steering systems, and vehicle gateways requiring stable component supply across extended product lifecycles.

Supply support for FS32K148HAT0MLQR 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 MCU design.

The S32K1xx family - including FS32K148HAT0MLQR - was engineered specifically for ASIL-B automotive electronic control units, integrating safety mechanisms, security engines, and robust analog/mixed-signal peripherals into scalable Arm Cortex-M platforms.

FAQ

What is the maximum operating frequency of the FS32K148HAT0MLQR and under what conditions?

The FS32K148HAT0MLQR operates at up to 112 MHz in HSRUN mode and 80 MHz in RUN mode. HSRUN mode requires VDD ≥ 2.97 V when PLL is engaged and is limited to ambient temperatures ≤105 °C. For CSEc cryptographic operations or EEPROM writes/erase, the device must be in RUN mode (80 MHz) - attempting these functions in HSRUN triggers error flags per NXP S32K1xx Rev. 15 datasheet Section 1.1.

Does the FS32K148HAT0MLQR support CAN-FD, and how many instances are available?

Yes, the FS32K148HAT0MLQR integrates three independent FlexCAN modules, all supporting CAN-FD per ISO 11898-1 with bit-rate switching up to 5 Mbps. Each module includes dedicated message buffers, FIFOs, and error counters - confirmed in the S32K1xx Feature Comparison (Figure 3) and supported in the 144-pin LQFP package per IO Signal Description documentation.

What safety certifications apply to the FS32K148HAT0MLQR?

The FS32K148HAT0MLQR is designed to support ISO 26262 ASIL-B compliance through integrated hardware safety features: System MPU enforcing memory access rights across all bus masters, ECC on flash and SRAM, CRC module for data integrity, dual watchdogs (WDOG and EWM), and lockstep-capable peripheral configurations. These capabilities are documented in the S32K1xx Data Sheet Rev. 15 Sections 1.1 and 3.1.

Can the FS32K148HAT0MLQR execute secure boot and cryptographic operations at full speed?

No - the FS32K148HAT0MLQR's Cryptographic Services Engine (CSEc) and EEPROM emulation functions are prohibited in HSRUN mode (112 MHz). The device must transition to RUN mode (80 MHz) to execute CSEc operations such as AES encryption, SHA-256 hashing, or secure key provisioning. This restriction is 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 FS32K148HAT0MLQR use?

The FS32K148HAT0MLQR uses a 144-pin LQFP package with 0.5 mm pitch and 20 × 20 mm body size. This package is pin-to-pin compatible with other S32K14x devices in the same footprint, enabling design reuse across performance tiers. Pin assignments for all peripherals - including Ethernet, SAI, and FlexCAN - are fully supported in this configuration per the S32K1xx IO Signal Description documentation.