NXP Semiconductors FS32K148HFT0MLQR

Overview

FS32K148HFT0MLQR 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), Ethernet MAC (10/100 Mbps with IEEE 1588), and operates from -40 °C to +125 °C - designed for body control modules and ADAS domain controllers requiring functional safety up to ASIL-B.

For engineers reviewing the FS32K148HFT0MLQR datasheet, FS32K148HFT0MLQR pinout, FS32K148HFT0MLQR application, or FS32K148HFT0MLQR equivalent, this page delivers verified specifications, package mapping (100-pin LQFP), validated alternatives, real-world use cases in automotive networking and secure firmware updates, and supply-chain support for production ramp-up.

Technical Context

The FS32K148HFT0MLQR implements a dual-core execution environment via Arm Cortex-M4F (primary) and M0+ (co-processor for low-power tasks), with tightly coupled memory subsystems including 4 KB FlexRAM (configurable as SRAM or EEPROM emulation) and 4 KB code cache. Its clock architecture integrates SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), enabling dynamic mode switching between HSRUN, RUN, STOP, VLPR, and VLPS.

Power management is governed by the PMC with hardware-enforced mode transitions; CSEc cryptographic operations and EEPROM writes are explicitly restricted to RUN mode (80 MHz), not HSRUN, due to timing-critical flash access constraints. Safety mechanisms include System MPU (crossbar-level memory protection), ECC on flash/SRAM, CRC module, WDOG, EWM, and ISO 26262-compliant design up to ASIL-B.

Key Specifications

Pinout & Package

FS32K148HFT0MLQR is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch), with 73 GPIOs, dedicated power/ground pins, and function-mapped peripheral signals including CAN_H/L, ETH_RMII, SAI, and QuadSPI. Pin assignments follow the S32K14x family layout; pin compatibility is guaranteed across all 100-pin LQFP variants in the S32K14x series.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K148HFT0MLQR, S32K146HFT0VLQR reduces cost and footprint for non-Ethernet applications, while MPC5748G offers higher memory capacity and dual Ethernet but requires revalidation of security architecture and lacks native CAN-FD optimization.

Availability

FS32K148HFT0MLQR is available at Aetrix Electronics and suitable for automotive body control modules, ADAS domain controllers, secure gateways, and electric power steering systems requiring stable component supply, long lifecycle assurance, and AEC-Q100 qualification.

Supply support for FS32K148HFT0MLQR 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 silicon.

The S32K1xx family - including FS32K148HFT0MLQR - was engineered specifically for automotive electronic control units requiring ASIL-B compliance, real-time performance, and integrated hardware security, targeting next-generation zonal architectures and software-defined vehicles.

FAQ

What is the maximum operating frequency of the FS32K148HFT0MLQR and under what conditions?

The FS32K148HFT0MLQR operates at up to 112 MHz in HSRUN mode, which requires VDD ≥ 2.97 V and ambient temperature ≤ +105 °C. At +125 °C (M-grade), maximum frequency is limited to 80 MHz in RUN mode. This distinction is enforced by hardware to maintain timing closure and flash reliability - the device automatically throttles when thermal or voltage limits are exceeded. FS32K148HFT0MLQR must switch to RUN mode for CSEc or EEPROM operations regardless of temperature.

Does the FS32K148HFT0MLQR support CAN-FD, and how many instances are available?

Yes, the FS32K148HFT0MLQR integrates three independent FlexCAN modules, each supporting CAN-FD per ISO 11898-1:2015 with bit rates up to 5 Mbps in FD mode. All three CAN instances are fully functional in the 100-pin LQFP package, with dedicated TX/RX pins mapped to separate port groups to avoid signal contention. FS32K148HFT0MLQR also supports protocol-specific features like ISO 11898-3 for fault-tolerant physical layer interfacing.

What security features does the FS32K148HFT0MLQR provide, and are they certified?

The FS32K148HFT0MLQR includes the Cryptographic Services Engine (CSEc), compliant with the Secure Hardware Extension (SHE) specification, offering AES-128 encryption/decryption, SHA-256 hashing, true random number generation, and secure boot key management. It is certified to ISO/SAE 21434 cybersecurity engineering standards and supports UNECE R155 compliance through hardware-rooted trust anchors. FS32K148HFT0MLQR requires explicit mode switching to RUN (80 MHz) for CSEc execution - a documented architectural constraint, not a limitation.

Is QuadSPI or HyperBus™ supported on the FS32K148HFT0MLQR in its 100-pin LQFP package?

No, QuadSPI with HyperBus™ support is explicitly excluded from the 100-pin LQFP variant of the FS32K148HFT0MLQR, as confirmed in the S32K1xx Data Sheet footnote on page 5. While the S32K148 die includes QuadSPI IP, pinmuxing constraints in the 100-pin LQFP package prevent routing of required QSPI_A_DATA[3:0], QSPI_A_SCLK, and QSPI_A_SS_B signals. FS32K148HFT0MLQR relies on internal flash and FlexNVM for code/data storage; external XIP is not supported in this package.

What is the GPIO count and interrupt capability of the FS32K148HFT0MLQR?

The FS32K148HFT0MLQR provides 73 GPIO pins across multiple port groups (PTA–PTD, PTE), all supporting configurable pull-up/down, slew rate control, and digital filter. Each GPIO can generate edge-triggered interrupts routed to the NVIC, with up to 16 concurrent interrupt sources supported via the Interrupt Router (IRQ). FS32K148HFT0MLQR also supports DMA request generation directly from GPIO state changes - critical for low-latency event handling in automotive applications like door latch detection or brake pedal sensing.