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NXP Semiconductors FS32K146HRT0MMHT
- Part No.:
- FS32K146HRT0MMHT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LFBGA
- Datasheet:
-
FS32K146HRT0MMHT.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100MAPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,750
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Product details
Overview
FS32K146HRT0MMHT 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, LPUART/LIN, LPSPI, LPI2C, FlexIO, and 12-bit ADCs - deployed in vehicle body control modules requiring ASIL-B functional safety compliance.
For engineers reviewing the FS32K146HRT0MMHT datasheet, FS32K146HRT0MMHT pinout, FS32K146HRT0MMHT application, or FS32K146HRT0MMHT equivalent, this page delivers verified specifications, package mapping to 100-pin LQFP, thermal limits (−40 °C to +125 °C), power mode behavior (HSRUN/RUN/STOP/VLPR/VLPS), and validated alternative parts for automotive ECU design.
Technical Context
The FS32K146HRT0MMHT implements a dual-core capable architecture with Arm Cortex-M4F core (112 MHz HSRUN, 80 MHz RUN) and optional M0+ co-processor support via software configuration. 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 crossbar level.
Peripherals include three FlexCAN modules (CAN-FD enabled), up to eight 16-bit FlexTimers (64 channels total), two 12-bit ADCs (32-channel each), LPIT, LPTMR, PDB, RTC, and QuadSPI with HyperBus™ support - all accessible via AXBS-Lite crossbar switch with eDMA and DMAMUX routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4F with FPU and DSP extension; enables real-time motor control and sensor fusion algorithms. |
| Max Clock Frequency | 112 MHz in HSRUN mode (80 MHz in RUN mode); HSRUN disabled during CSEc/EEPROM operations. |
| Flash / SRAM | 2 MB program flash + 64 KB FlexNVM + 256 KB SRAM, all with ECC - meets ISO 26262 ASIL-B memory integrity requirements. |
| Operating Temperature | −40 °C to +125 °C ambient (M-grade); junction limit 135 °C in RUN mode per thermal specs. |
| Supply Voltage | 2.7 V to 5.5 V; supports direct connection to automotive battery rail with transient tolerance up to 6.8 V (60 s lifetime). |
| Security | Cryptographic Services Engine (CSEc) compliant with SHE specification; provides AES-128, SHA-256, RNG, and secure boot. |
| Communication | 3× FlexCAN (CAN-FD), 3× LPUART/LIN, 3× LPSPI, 2× LPI2C, FlexIO, Ethernet MAC (not on this variant), SAI (not on this variant). |
Pinout & Package
FS32K146HRT0MMHT is packaged in a 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the S32K14x family pin-to-pin compatibility across 100-pin packages - confirmed in IO Signal Description sheets and Reference Manual multiplexing tables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog/digital supply rails | Must be shorted on PCB with local decoupling; VREFH ≤ VDDA + 0.1 V ensures ADC accuracy. |
| RESET_B | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog (EWM) or microcontroller reset supervisor. |
| SWD_CLK / SWD_IO | Serial Wire Debug interface | Two-pin debug port supporting full JTAG/SWD functionality including trace (ITM/TPIU) and flash patching. |
| CAN0_TX / CAN0_RX | FlexCAN differential signal pair | Requires external CAN transceiver; supports CAN-FD up to 5 Mbps with bit-rate switching. |
| ADC0_SE0–ADC0_SE31 | Analog input channels | 32 single-ended inputs shared across two 12-bit SAR ADC modules; 1 Msps conversion rate per module. |
| FLEXIO0_FLEXIO0–FLEXIO0_FLEXIO7 | Programmable I/O pins | Configurable as UART, SPI, I2C, PWM, or custom protocols; independent clock and trigger sources. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Ready Architecture | System MPU enforces memory access rights per master (core/DMA/Ethernet); ECC on flash/SRAM; CRC and WDOG/EWM coverage. |
| Multi-Mode Power Management | Five low-power modes (HSRUN/RUN/STOP/VLPR/VLPS); dynamic clock gating reduces active current to <10 mA @ 80 MHz. |
| Secure Boot & Runtime Protection | CSEc enables authenticated boot, encrypted firmware updates, and runtime key management - all isolated from application code space. |
| Flexible Timer Subsystem | Eight FlexTimer modules (64 channels), LPIT (4 channels), LPTMR, and PDB enable synchronized PWM generation, capture, and delay timing. |
| Robust Analog Integration | Dual 12-bit ADCs with hardware-triggered conversions, analog comparator with 8-bit DAC, and dedicated reference voltage inputs. |
Applications
| Body Control Module (BCM) | Door Module |
|---|---|
Use Scenario: Centralized control of lighting, window lift, mirror adjustment, and door lock actuation in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing LIN/CAN gateway logic, PWM motor control, and ADC-based position sensing. Use Value: 156 GPIOs and three FlexCAN interfaces allow consolidation of multiple legacy ECUs into one FS32K146HRT0MMHT-based unit. |
Use Scenario: Localized intelligence for power window, anti-pinch detection, and keyless entry in front/rear doors. IC Role / Device Role / Timing Role: Real-time motor control using FTM PWM outputs and ADC feedback; LIN communication to BCM. Use Value: Integrated CSEc secures over-the-air (OTA) firmware updates; 125 °C ambient rating supports under-hood mounting. |
| Seat Control Unit | Roof Module |
Use Scenario: Motorized seat positioning with memory presets, heating, and lumbar support in premium vehicles. IC Role / Device Role / Timing Role: Dual ADC acquisition for potentiometer feedback; FlexTimer-based multi-phase motor commutation. Use Value: 256 KB SRAM with ECC enables complex seat position interpolation and fault logging without external memory. |
Use Scenario: Sunroof control, panoramic roof shading, and ambient lighting coordination in high-end SUVs/coupes. IC Role / Device Role / Timing Role: LIN slave node managing stepper motor control, touch sensor interface, and RGB LED dimming. Use Value: FlexIO emulates custom lighting protocols; LPI2C handles ambient light sensor and EEPROM storage for user preferences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FS32K148HRT0MLHT | 2 MB flash, 512 KB SRAM, adds 10/100 Mbps Ethernet MAC and two SAI audio interfaces; same 100-pin LQFP package. | Required for gateways needing time-sensitive networking (IEEE 1588) or audio processing; not needed for pure body control. | Select FS32K148HRT0MLHT only if Ethernet or SAI peripherals are mandatory; otherwise FS32K146HRT0MMHT offers optimal cost/performance balance. |
| FS32K144HRT0MLHT | 1 MB flash, 192 KB SRAM, two FlexCAN modules (vs. three), no CSEc security engine; identical 100-pin LQFP footprint. | Suitable for non-security-critical LIN/CAN nodes where OTA update signing or secure boot is unnecessary. | Choose FS32K144HRT0MLHT for cost-sensitive applications without cryptographic requirements; verify CAN channel count sufficiency. |
Compared with FS32K146HRT0MMHT, FS32K148HRT0MLHT adds Ethernet/SAI but increases BOM cost and layout complexity, while FS32K144HRT0MLHT reduces flash/SRAM and removes CSEc - making it viable only where security and peripheral headroom are non-critical.
Availability
FS32K146HRT0MMHT is available at Aetrix Electronics and suitable for automotive body electronics, door modules, and seat control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for FS32K146HRT0MMHT 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 focused on automotive, industrial, IoT, and communication infrastructure solutions, with deep expertise in functional safety and security.
The S32K1xx family - including FS32K146HRT0MMHT - was designed specifically for automotive body and chassis applications demanding ASIL-B compliance, robust EMC performance, and long-term supply stability.
FAQ
What is the maximum operating frequency of the FS32K146HRT0MMHT?
The FS32K146HRT0MMHT operates at up to 112 MHz in HSRUN mode and 80 MHz in RUN mode. However, CSEc security operations and EEPROM writes/erases require switching to RUN mode (80 MHz), as these functions are prohibited in HSRUN mode per the datasheet.
Does the FS32K146HRT0MMHT support CAN-FD?
Yes, the FS32K146HRT0MMHT integrates three FlexCAN modules that support CAN-FD protocol with bit-rate switching and payloads up to 64 bytes. External CAN transceivers are required for physical layer interfacing.
What package type is used for the FS32K146HRT0MMHT?
The FS32K146HRT0MMHT uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. It is pin-to-pin compatible with other S32K14x devices in the same 100-pin LQFP configuration.
Is the FS32K146HRT0MMHT qualified for automotive applications?
Yes, the FS32K146HRT0MMHT is AEC-Q100 qualified (Grade 1: −40 °C to +125 °C), supports ISO 26262 ASIL-B development, and includes safety mechanisms like ECC, system MPU, CRC, and dual watchdogs (WDOG/EWM).
What memory features does the FS32K146HRT0MMHT include?
The FS32K146HRT0MMHT includes 2 MB program flash with ECC, 64 KB FlexNVM for data flash and EEPROM emulation, 256 KB SRAM with ECC, 4 KB FlexRAM, and 4 KB code cache - all accessible via AXBS-Lite crossbar with eDMA support.
FS32K146HRT0MMHT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LFBGA
- Series:
- S32K
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 89
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR; D/A1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
FS32K146HRT0MMHT FAQ
1.How can I place an order for FS32K146HRT0MMHT through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K146HRT0MMHT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FS32K146HRT0MMHT reliable?
The price and inventory of FS32K146HRT0MMHT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K146HRT0MMHT is usually 5 days.
3.What payment methods are accepted for FS32K146HRT0MMHT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K146HRT0MMHT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K146HRT0MMHT?
FS32K146HRT0MMHT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K146HRT0MMHT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FS32K146HRT0MMHT?
For technical support, including FS32K146HRT0MMHT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K146HRT0MMHT requirements.
6.How does Aetrix verify that FS32K146HRT0MMHT is sourced from the original manufacturer or authorized distributors?
All FS32K146HRT0MMHT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FS32K146HRT0MMHT meets industry standards.
7.What is the process for return or replacement of FS32K146HRT0MMHT?
All FS32K146HRT0MMHT units undergo pre-shipment inspection (PSI). If there is an issue with FS32K146HRT0MMHT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FS32K146HRT0MMHT part is unused and in its original packaging.
Return procedure for FS32K146HRT0MMHT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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