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NXP Semiconductors FS32K146HRT0MLLT
- Part No.:
- FS32K146HRT0MLLT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
FS32K146HRT0MLLT.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,492
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Product details
Overview
FS32K146HRT0MLLT 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. It operates at up to 112 MHz in HSRUN mode and supports -40 °C to +125 °C ambient temperature. Designed for body control modules and powertrain sensor interfaces, it integrates FlexCAN with optional CAN-FD, CSEc security engine, and multiple low-power peripherals.
For engineers reviewing the FS32K146HRT0MLLT datasheet, FS32K146HRT0MLLT pinout, FS32K146HRT0MLLT application, or FS32K146HRT0MLLT equivalent, key selection criteria include ASIL-B capable safety architecture, HSRUN/RUN mode switching constraints for EEPROM/CSEc operations, 156 GPIO count, and 100-pin LQFP package compatibility across S32K14x family members.
Technical Context
The FS32K146HRT0MLLT implements a dual-core execution environment via Arm Cortex-M4F core with integrated FPU and DSP extensions, supporting deterministic real-time control in automotive applications. Its clock system includes SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with configurable power modes (HSRUN, RUN, STOP, VLPR, VLPS) managed by PMC.
Memory subsystem features ECC-protected 2 MB flash, 64 KB FlexNVM for EEPROM emulation, 256 KB SRAM, and 4 KB FlexRAM usable as SRAM or EEPROM backup. Safety mechanisms include System MPU (crossbar-level memory protection), CRC module, WDOG/EWM watchdogs, and CSEc cryptographic engine compliant with SHE specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4F with FPU and DSP extensions - enables floating-point math and signal processing in motor control and sensor fusion. |
| Max Clock Frequency | 112 MHz in HSRUN mode - delivers high computational throughput for time-critical automotive tasks. |
| Flash Memory | 2 MB with ECC - ensures reliable program storage and error detection/correction in harsh environments. |
| SRAM | 256 KB with ECC - provides robust data buffering for real-time OS and safety-critical variables. |
| ADC | Two 12-bit SAR ADCs, up to 32 channels each - supports simultaneous sampling of multiple vehicle sensors (e.g., temperature, pressure). |
| FlexCAN | Three modules, CAN-FD capable - enables high-bandwidth communication on modern automotive networks. |
| Operating Temperature | -40 °C to +125 °C (M-grade) - qualified for under-hood and transmission control unit deployment. |
| Security | Cryptographic Services Engine (CSEc) per SHE spec - provides hardware-accelerated AES, SHA, RNG, and secure boot. |
Pinout & Package
FS32K146HRT0MLLT is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch), pin-compatible with other S32K14x devices in the same package option. This package supports full peripheral routing including three FlexCAN interfaces, dual ADCs, Ethernet MAC, and 156 GPIO signals mapped across dedicated I/O banks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Power and analog reference supply | Separate but tightly coupled domains (VDD–VDDA differential ≤ ±0.1 V) ensure stable ADC performance and noise immunity. |
| PTA0–PTA31, PTB0–PTB31, etc. | GPIO multiplexed I/O | 156 total pins support configurable pull-up/down, interrupt, and peripheral function mapping per IO Signal Description sheet. |
| CAN0_TX / CAN0_RX | FlexCAN differential transceiver interface | Supports CAN-FD up to 5 Mbps - requires external CAN transceiver and termination for bus compliance. |
| JTAG_TMS / JTAG_TCK / SWD_DIO / SWD_CLK | Debug interface | Serial Wire Debug (SWD) primary; JTAG fallback - enables non-intrusive debugging and flash programming in production test. |
| RTC_CLKIN | Real-time counter external clock input | Accepts 32.768 kHz crystal or buffered oscillator - maintains accurate timekeeping during low-power STOP/VLPS modes. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B capable safety architecture | System MPU enforces crossbar-level memory access rights for Core/DMA/Ethernet masters - meets ISO 26262 requirements without software overhead. |
| Flexible power management | Five distinct power modes (HSRUN/RUN/STOP/VLPR/VLPS) with configurable clock gating - enables <1 µA STOP current and sub-10 µs wake-up latency. |
| Secure boot & runtime protection | CSEc implements SHE-compliant crypto primitives and secure key storage - prevents unauthorized firmware updates and runtime tampering. |
| Dual 12-bit ADC with 1 Msps | Two independent modules, each with up to 32 analog inputs and hardware trigger synchronization - eliminates CPU polling for synchronized sensor acquisition. |
| QuadSPI with HyperBus™ support | Enables direct XIP execution from external NOR flash - reduces BOM cost and simplifies code update architecture in telematics gateways. |
| FlexIO programmable peripheral | 8-pin module emulates UART/I²C/SPI/PWM/ISELED - replaces discrete logic and reduces PCB layer count in lighting and actuator control. |
Applications
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC actuators in modern vehicles. IC Role / Device Role / Timing Role: Main application MCU executing AUTOSAR BSW and application software with deterministic timing via FlexTimers and LPIT. Use Value: 156 GPIO and three LPUART/LIN interfaces enable direct connection to >20 vehicle subsystems without external I/O expanders. |
Use Scenario: Real-time torque calculation and motor phase control in steer-by-wire systems. IC Role / Device Role / Timing Role: Safety-critical controller running ASIL-B software with lockstep-capable peripherals and ECC-protected memory. Use Value: Dual 12-bit ADCs sample motor current and position sensors simultaneously at 1 Msps, feeding closed-loop control algorithms in M4F+FPU. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Gear shift logic, clutch control, and hydraulic pressure regulation in automatic transmissions. IC Role / Device Role / Timing Role: High-integrity timing controller using PDB-triggered FTM PWM outputs and RTC-synchronized diagnostics. Use Value: HSRUN mode (112 MHz) delivers 1.25 DMIPS/MHz for fast PID loop execution while CSEc secures firmware updates over CAN-FD. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS ECU. IC Role / Device Role / Timing Role: Sensor interface hub with QuadSPI XIP for local firmware updates and FlexIO for custom sensor protocols. Use Value: Three FlexCAN interfaces handle multi-bus sensor communication; 256 KB ECC SRAM buffers raw sensor frames for timestamped pre-processing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FS32K148HRT0MLLT | 2 MB flash, 256 KB SRAM, 100-pin LQFP, adds 10/100 Mbps Ethernet MAC and two SAI audio interfaces | Required for gateway functions integrating Ethernet backhaul and audio streaming (e.g., infotainment head units) | Select when Ethernet or SAI is mandatory; otherwise FS32K146HRT0MLLT offers identical MCU core, memory, and CAN-FD capability at lower cost. |
| FS32K144HRT0MLLT | 1 MB flash, 192 KB SRAM, 100-pin LQFP, same core/peripherals but reduced memory capacity | Suitable for cost-sensitive body electronics where full 2 MB flash is unnecessary (e.g., seat control modules) | Choose for BOM optimization where application firmware fits within 1 MB; retains identical pinout, timing, and safety features. |
Compared with FS32K146HRT0MLLT, FS32K148HRT0MLLT adds Ethernet/SAI at higher cost and power, while FS32K144HRT0MLLT reduces flash/SRAM for simpler applications - all three share identical 100-pin LQFP footprint, HSRUN/RUN mode behavior, and CSEc security implementation.
Availability
FS32K146HRT0MLLT is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, and transmission control units requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for FS32K146HRT0MLLT 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 FS32K146HRT0MLLT - was designed specifically for ASIL-B automotive applications such as body electronics, chassis control, and powertrain subsystems, emphasizing safety, security, and real-time determinism.
FAQ
What is the maximum operating frequency of the FS32K146HRT0MLLT and under what conditions?
The FS32K146HRT0MLLT achieves up to 112 MHz in HSRUN mode, enabled only when operating within the -40 °C to +105 °C ambient range. At +125 °C (M-grade), maximum frequency is limited to 80 MHz in RUN mode. The device must switch from HSRUN to RUN mode to execute CSEc security operations or FlexNVM EEPROM emulation - attempting these in HSRUN triggers error flags.
Does the FS32K146HRT0MLLT support CAN-FD, and how many interfaces are available?
Yes, the FS32K146HRT0MLLT integrates three FlexCAN modules, each supporting CAN-FD protocol per ISO 11898-1. All three interfaces are accessible in the 100-pin LQFP package and support bit rates up to 5 Mbps in FD mode. External CAN transceivers are required for physical layer compliance, and the CSEc engine can secure CAN-FD firmware updates.
What safety certifications and hardware features does the FS32K146HRT0MLLT provide for ASIL-B compliance?
The FS32K146HRT0MLLT includes System MPU for crossbar-level memory protection, ECC on flash and SRAM, CRC module, dual watchdogs (WDOG and EWM), and lockstep-capable peripherals. These features collectively support ASIL-B development per ISO 26262, validated through NXP's safety documentation and FMEDA reports - no additional external safety monitors are required for basic ASIL-B system partitioning.
How does the FS32K146HRT0MLLT manage power consumption in low-power automotive applications?
The FS32K146HRT0MLLT implements five power modes: HSRUN, RUN, STOP, VLPR, and VLPS. In STOP mode, current drops below 1 µA with RTC and selected wakeup sources active. Clock gating is applied per peripheral, and the PMC allows dynamic voltage/frequency scaling. Wake-up latency from VLPS is under 10 µs, enabling rapid response to LIN/CAN interrupts while maintaining ultra-low quiescent current.
Is the FS32K146HRT0MLLT pin-compatible with other S32K14x family members in the same package?
Yes, all S32K14x devices - including FS32K142HRT0MLLT, FS32K144HRT0MLLT, FS32K146HRT0MLLT, and FS32K148HRT0MLLT - are pin-to-pin compatible in identical packages (e.g., 100-pin LQFP). Peripheral availability depends on pin multiplexing; the FS32K146HRT0MLLT exposes all three FlexCAN interfaces, dual ADCs, and 156 GPIOs in this package, matching the superset functionality defined for the S32K14x family.
FS32K146HRT0MLLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- 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:
FS32K146HRT0MLLT FAQ
1.How can I place an order for FS32K146HRT0MLLT through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K146HRT0MLLT 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 FS32K146HRT0MLLT reliable?
The price and inventory of FS32K146HRT0MLLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K146HRT0MLLT is usually 5 days.
3.What payment methods are accepted for FS32K146HRT0MLLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K146HRT0MLLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K146HRT0MLLT?
FS32K146HRT0MLLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K146HRT0MLLT 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 FS32K146HRT0MLLT?
For technical support, including FS32K146HRT0MLLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K146HRT0MLLT requirements.
6.How does Aetrix verify that FS32K146HRT0MLLT is sourced from the original manufacturer or authorized distributors?
All FS32K146HRT0MLLT 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 FS32K146HRT0MLLT meets industry standards.
7.What is the process for return or replacement of FS32K146HRT0MLLT?
All FS32K146HRT0MLLT units undergo pre-shipment inspection (PSI). If there is an issue with FS32K146HRT0MLLT, 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 FS32K146HRT0MLLT part is unused and in its original packaging.
Return procedure for FS32K146HRT0MLLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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