NXP Semiconductors FS32K146HAT0VLQR

Overview

FS32K146HAT0VLQR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 2 MB flash, 256 KB SRAM (both with ECC), and dual 12-bit ADCs supporting up to 32 channels each. It operates at up to 112 MHz in HSRUN mode and supports -40 °C to 105 °C ambient temperature - designed for body control modules, battery management systems, and motor control in ISO 26262 ASIL-B–capable applications.

For engineers reviewing the FS32K146HAT0VLQR datasheet, FS32K146HAT0VLQR pinout, FS32K146HAT0VLQR application, or FS32K146HAT0VLQR equivalent, key selection considerations include its dual FlexCAN modules with optional CAN-FD support, CSEc cryptographic engine, 8x FlexTimer modules (64 PWM/IC/OC channels), and 156 GPIOs with interrupt capability - all validated for automotive powertrain and chassis subsystems.

Technical Context

The FS32K146HAT0VLQR integrates an Arm Cortex-M4F core with single-precision FPU and DSP extensions, executing at up to 112 MHz in HSRUN mode (1.25 DMIPS/MHz) and switching to 80 MHz RUN mode for CSEc security operations or EEPROM emulation. Its memory subsystem includes 2 MB program flash with ECC, 64 KB FlexNVM for data flash/EEPROM emulation, and 256 KB SRAM with ECC - all protected by NXP's system-level MPU at the AXBS-Lite crossbar switch.

Peripheral architecture features three LPUART/LIN modules, three LPSPI, two LPI2C, three FlexCAN interfaces (two with CAN-FD), one 10/100 Mbps Ethernet MAC with IEEE 1588, two SAI audio interfaces, and a FlexIO module capable of UART/I²C/SPI/PWM emulation - all supported by 16-channel eDMA with DMAMUX routing across 63 request sources.

Key Specifications

Pinout & Package

FS32K146HAT0VLQR is packaged in a 144-pin LQFP (10 × 10 mm, 0.5 mm pitch) - pin-compatible with other S32K14x devices in the same package variant. This package supports full peripheral access including all three FlexCAN interfaces, dual ADCs, Ethernet PHY interface, and 156 GPIOs (with multiplexed functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with FS32K146HAT0VLQR, FS32K144HAT0MLQR reduces memory and removes Ethernet to lower cost, while FS32K148HAT0MLQR adds Ethernet and audio interfaces - making FS32K146HAT0VLQR the optimal balance of CAN-FD bandwidth, memory headroom, and ASIL-B safety features for mid-tier automotive ECUs.

Availability

FS32K146HAT0VLQR is available at Aetrix Electronics and suitable for body control modules, battery management systems, and electric power steering applications requiring stable component supply across automotive production lifecycles.

Supply support for FS32K146HAT0VLQR 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 S32K1xx family - including FS32K146HAT0VLQR - was engineered specifically for ASIL-B automotive control applications, emphasizing integrated safety mechanisms (ECC, MPU, WDOG), robust power management, and automotive-grade signal integrity.

FAQ

What is the maximum operating frequency of the FS32K146HAT0VLQR and under what conditions?

The FS32K146HAT0VLQR achieves up to 112 MHz in HSRUN mode, but only when supplied with ≥2.97 V and operating within -40 °C to +105 °C ambient temperature. At 112 MHz, CSEc security operations and EEPROM emulation are disabled; the device must drop to 80 MHz RUN mode to execute those functions - a hardware-enforced constraint documented in the S32K1xx Data Sheet Rev. 15.

Does the FS32K146HAT0VLQR support CAN-FD, and how many interfaces are available?

Yes, the FS32K146HAT0VLQR integrates three FlexCAN modules, with two supporting CAN-FD (ISO 11898-1) at up to 5 Mbps data rate. All three CAN interfaces are accessible in the 144-pin LQFP package, enabling redundant networking or multi-domain communication - confirmed in the S32K1xx Feature Comparison table and Pin Multiplexing documentation.

What safety certifications apply to the FS32K146HAT0VLQR?

The FS32K146HAT0VLQR is qualified to ISO 26262 ASIL-B for hardware elements, with built-in safety mechanisms including ECC on flash/SRAM, system-level MPU, CRC module, dual watchdogs (WDOG and EWM), and lockstep-capable peripherals. These capabilities are validated per NXP's S32K1xx Functional Safety Manual and supported by FMEDA reports available under NDA.

How much on-chip memory does the FS32K146HAT0VLQR provide, and what types are included?

The FS32K146HAT0VLQR includes 2 MB of program flash memory with ECC, 64 KB of FlexNVM for data flash or EEPROM emulation (also with ECC), 256 KB of SRAM with ECC, and 4 KB of FlexRAM usable as additional SRAM or EEPROM emulation - all detailed in the "Memories and Memory Interfaces" chapter of the S32K1xx Data Sheet Rev. 15.

Is the FS32K146HAT0VLQR pin-compatible with other S32K14x devices in the same package?

Yes, all S32K14x devices sharing the 144-pin LQFP package - including FS32K142, FS32K144, FS32K146, and FS32K148 - are fully pin-to-pin compatible per the S32K1xx Data Sheet Rev. 15 Feature Comparison section. This allows hardware reuse across performance tiers while maintaining identical PCB layout and connector assignments.