NXP Semiconductors FS32K148UGT0VLQT

Overview

FS32K148UGT0VLQT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM, and integrated CSEc security engine. It operates at up to 112 MHz in HSRUN mode (−40 °C to +105 °C), supports CAN-FD, Ethernet, FlexIO, and IEEE-1588 timing - deployed in vehicle body control modules requiring functional safety up to ASIL-B.

For engineers reviewing the FS32K148UGT0VLQT datasheet, FS32K148UGT0VLQT pinout, FS32K148UGT0VLQT application, or FS32K148UGT0VLQT equivalent, key selection considerations include its 176-pin LQFP package, dual 12-bit ADCs (1 Msps), FlexCAN with FD support, CSEc cryptographic acceleration, and mandatory RUN-mode execution for EEPROM/CSEc operations - critical for secure boot and OTA update designs.

Technical Context

The FS32K148UGT0VLQT implements a dual-core architecture with Arm Cortex-M4F as primary core and optional M0+ for low-power co-processing. Its memory subsystem includes ECC-protected 2 MB flash, 64 KB FlexNVM for EEPROM emulation, and 4 KB FlexRAM configurable as SRAM or EEPROM backup - all accessible via AXBS-Lite crossbar switch with DMA routing through DMAMUX.

Timing and safety are enforced by eight 16-bit FlexTimers (64 channels total), LPIT with four channels, RTC with 32-bit counter, and system-level protection including NXP's System MPU (crossbar-based), CRC module, WDOG/EWM watchdogs, and ASIL-B-capable fault detection logic - aligned with ISO 26262 requirements for automotive ECU applications.

Key Specifications

Pinout & Package

FS32K148UGT0VLQT is housed in a 176-pin LQFP package (16 × 16 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per S32K1xx Reference Manual IO Signal Description sheets; I/O count reaches up to 156 GPIOs with interrupt capability, including dedicated CAN-FD, Ethernet PHY, SAI, and QuadSPI signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K148UGT0VLQT, FS32K146UGT0VLQT reduces memory and connectivity for cost-sensitive body ECUs, while FS32K148UJT0VLQT extends lighting control capability without compromising gateway performance - both maintain pin compatibility and ASIL-B readiness.

Availability

FS32K148UGT0VLQT is available at Aetrix Electronics and suitable for automotive body control, electric power steering, and gateway ECU applications requiring stable component supply, long lifecycle commitment, and AEC-Q100 qualification.

Supply support for FS32K148UGT0VLQT 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 family - including FS32K148UGT0VLQT - was designed specifically for automotive electronic control units demanding ASIL-B compliance, robust security, and multi-protocol connectivity in harsh environments.

FAQ

What is the maximum operating frequency of the FS32K148UGT0VLQT and under what conditions?

The FS32K148UGT0VLQT achieves up to 112 MHz in HSRUN mode, but only within the −40 °C to +105 °C ambient temperature range and with VDD ≥ 2.97 V. At lower voltages or above 105 °C, it must operate in RUN mode at 80 MHz - a hard requirement enforced by internal voltage/frequency lock logic to ensure timing margin integrity.

Does the FS32K148UGT0VLQT support CAN-FD, and how many instances are available?

Yes, the FS32K148UGT0VLQT integrates three independent FlexCAN modules, all supporting CAN-FD protocol up to 5 Mbps data phase. Each module includes dedicated message buffers, RAM-based filtering, and built-in loopback/self-test modes - enabling concurrent high-speed communication with radar, camera, and domain controllers.

Can CSEc cryptographic operations be executed in HSRUN mode on the FS32K148UGT0VLQT?

No. CSEc (Cryptographic Services Engine) operations - including AES encryption, SHA hashing, and secure key generation - trigger error flags if attempted in HSRUN mode (112 MHz). The FS32K148UGT0VLQT must be switched to RUN mode (80 MHz) before initiating any CSEc command or EEPROM write/erase sequence, as documented in the S32K1xx Data Sheet Rev. 15.

What package type and pin count does the FS32K148UGT0VLQT use?

The FS32K148UGT0VLQT uses a 176-pin LQFP package (16 mm × 16 mm, 0.5 mm pitch) with exposed thermal pad. This package supports up to 156 GPIOs and is pin-compatible with other S32K14x devices in the same footprint - enabling scalable design reuse across performance tiers within the family.

Is Ethernet connectivity supported on the FS32K148UGT0VLQT, and what standards does it implement?

Yes, the FS32K148UGT0VLQT includes a full 10/100 Mbps IEEE-802.3 Ethernet MAC with IEEE-1588-2008 Precision Time Protocol (PTP) hardware timestamping. It supports RMII/MII interfaces and includes TSO/LRO offload engines - enabling deterministic time-synchronized communication for ADAS sensor fusion and zonal gateway architectures.