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NXP Semiconductors FS32K144WAT0WLFR
- Part No.:
- FS32K144WAT0WLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
FS32K144WAT0WLFR.pdf
- Description:
- S32K144W ARM CORTEX-M4F, UP TO 8
- Quantity:
- Payment:
- Shipping:
Inventory:1,872
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Product details
Overview
FS32K144WAT0WLFR from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with 1 MB flash, 128 KB SRAM, and integrated CSEc security engine. It operates at up to 80 MHz in RUN mode, supports -40 °C to 150 °C ambient temperature, and features dual 12-bit ADCs, three FlexCAN modules (CAN-FD capable), and Ethernet MAC with IEEE 1588 support - deployed in vehicle body control modules requiring ASIL-B compliance.
For engineers reviewing the FS32K144WAT0WLFR datasheet, FS32K144WAT0WLFR pinout, FS32K144WAT0WLFR application, or FS32K144WAT0WLFR equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for automotive ECU design and functional safety validation.
Technical Context
The FS32K144WAT0WLFR implements an Arm Cortex-M4F core with single-precision FPU and DSP extensions, executing at 80 MHz in RUN mode (not 112 MHz HSRUN, which is disabled for this variant). Its memory subsystem includes 1 MB ECC-protected program flash, 128 KB ECC SRAM, and 4 KB FlexRAM usable as EEPROM emulation - all managed by a System MPU enforcing ASIL-B–capable memory protection at the crossbar level.
Peripherals are optimized for automotive real-time control: three FlexCAN interfaces (all CAN-FD enabled), two LPI2C buses, three LPSPI modules, and eight FlexTimer units delivering 64 PWM/IC/OC channels. Clocking relies on FIRC (48 MHz), SOSC (4–40 MHz), and SPLL (up to 80 MHz), with dedicated low-power timers (LPIT, LPTMR) and RTC supporting wake-up from VLPS/VLPR modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4F with FPU and DSP extensions - enables floating-point math and signal processing in motor control and sensor fusion. |
| Max Operating Frequency | 80 MHz in RUN mode - guarantees deterministic timing for AUTOSAR OS tick and CAN FD frame handling without HSRUN mode restrictions. |
| Flash Memory | 1 MB with ECC - provides robust code storage for A/B firmware swapping and OTA update resilience in safety-critical ECUs. |
| SRAM | 128 KB with ECC - supports large real-time buffers for CAN FD message queues and encrypted data staging in CSEc operations. |
| Operating Temperature | -40 °C to +150 °C ambient - qualified for under-hood applications including transmission control and battery management systems. |
| Supply Voltage | 3.13 V to 5.5 V - compatible with automotive 3.3 V and 5 V rail architectures; excludes 2.7 V operation permitted in non-W variants. |
| Security Engine | Cryptographic Services Engine (CSEc) - implements SHE-compliant AES-128, SHA-256, and key provisioning for secure boot and firmware authentication. |
| FlexCAN Interfaces | 3 × CAN-FD (ISO 11898-1) - enables high-bandwidth communication across powertrain, chassis, and ADAS domains with data phase bit rates up to 5 Mbps. |
Pinout & Package
FS32K144WAT0WLFR is housed in a 144-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows the S32K14xW family layout, supporting full peripheral routing including Ethernet RMII, dual ADC groups, and three independent CAN transceiver interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog & digital supply inputs | Require separate 100 nF + 10 µF decoupling per supply domain; VDDA must be shorted to VDD on PCB per AN5032 guidelines. |
| RESET_B | Active-low reset input | Accepts 1.2 V to 5.5 V logic; internal pull-up ensures safe startup; compatible with external watchdog monitors (EWM). |
| ENET_RXD0/1, TXD0/1, CRS_DV, REF_CLK | Ethernet physical layer interface | Supports 10/100 Mbps IEEE 802.3 with IEEE 1588 timestamping - requires controlled-impedance 50 Ω traces and common-mode chokes. |
| CAN0_TX/RX, CAN1_TX/RX, CAN2_TX/RX | CAN-FD differential signal pairs | Each pair routes to external CAN transceiver; supports ISO 11898-1 physical layer with bus fault tolerance up to ±40 V. |
| ADC0_SE0–31, ADC1_SE0–31 | Analog input channels | Two independent 12-bit SAR ADCs (1 Msps each); 32-channel multiplexing per module enables simultaneous sampling of engine sensors and battery voltage/current. |
| JTAG_TMS/TCK/TDO/TDI, SWD_DIO/SWCLK | Debug interface pins | Dual-mode debug (JTAG/SWD) with ITM trace output - enables real-time code profiling and AUTOSAR BSW validation via NXP S32DS. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B–capable System MPU | NXP's crossbar-level memory protection unit enforces access rights per master (CPU, DMA, Ethernet), preventing unauthorized peripheral or memory access during runtime. |
| FlexIO configurable peripherals | 8-pin module emulates UART, SPI, I²C, LIN, or PWM - replaces discrete protocol translators in gateway ECUs and reduces BOM count. |
| Low-power timer suite | LPIT (4-channel), LPTMR, and RTC enable precise wake-up scheduling from VLPS mode with sub-millisecond latency - critical for periodic CAN bus monitoring. |
| QuadSPI with HyperBus™ | External memory interface supporting x4 DDR reads at up to 133 MHz - expands code space for complex ADAS perception stacks without increasing internal flash cost. |
| Secure boot with CSEc | Hardware-accelerated SHA-256 and AES-128 verify signed firmware images before execution - satisfies UNECE R155 CSMS requirements for vehicle cybersecurity. |
| Functional safety support | Built-in CRC engine, ECC on flash/SRAM, WDOG/EWM, and lockstep-capable peripherals align with ISO 26262 Part 6 CL-A development process. |
Applications
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern vehicle platforms. IC Role / Device Role / Timing Role: Primary MCU coordinating LIN slave nodes, driving high-side/low-side power switches, and managing CAN gateway functions between comfort and powertrain domains. Use Value: 156 GPIOs and three CAN-FD interfaces allow consolidation of multiple legacy MCUs into one FS32K144WAT0WLFR-based board, reducing system cost and interconnect complexity. |
Use Scenario: Real-time torque assist calculation, motor position feedback processing, and fail-safe shutdown in steer-by-wire systems. IC Role / Device Role / Timing Role: Safety-critical controller executing ASIL-D software partitions (via partitioned OS) with lockstep monitoring of ADC sampling and PWM generation. Use Value: Dual 12-bit ADCs sampling at 1 Msps and 80 MHz deterministic execution ensure <10 µs loop closure for motor current control - meeting ISO 26262 timing constraints. |
| Transmission Control Unit (TCU) | Battery Management System (BMS) Master |
Use Scenario: Gear selection logic, clutch pressure modulation, and shift quality optimization in 8-speed automatic transmissions. IC Role / Device Role / Timing Role: High-integrity controller interfacing with solenoid drivers, temperature sensors, and turbine speed encoders while maintaining CAN FD communication with engine ECU. Use Value: CSEc-enabled secure bootloader prevents unauthorized firmware updates, and 150 °C rating ensures reliability in oil-cooled TCU housings near the gearbox. |
Use Scenario: Cell voltage/temperature monitoring aggregation, state-of-charge estimation, and isolation barrier communication in high-voltage EV battery packs. IC Role / Device Role / Timing Role: Master node collecting data from daisy-chained analog front-ends (AFE), performing cryptographic signing of telemetry, and relaying alerts over CAN FD to vehicle gateway. Use Value: 1 MB flash stores redundant SOC algorithms and calibration tables; FlexCAN with FD enables 5 Mbps telemetry bursts during fast charging events without bus congestion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K144HAT0MLF | Same core and peripherals but rated for -40 °C to 125 °C; uses 2.7–5.5 V supply; lacks CSEc security engine. | Targeted at non-safety-critical cabin modules (e.g., infotainment gateways) where extended temperature and crypto are not required. | Select when cost sensitivity outweighs security and under-hood thermal requirements. |
| MPC5744P | Power Architecture e200z4 core; 2 MB flash; no CSEc but includes HSM; supports lockstep CPU pairs for ASIL-D. | Used in airbag controllers and brake ECUs where dual-core lockstep and hardware security module (HSM) are mandated. | Choose for ASIL-D–certified designs requiring higher compute throughput and certified HSM, accepting larger footprint and legacy toolchain. |
Compared with FS32K144WAT0WLFR, S32K144HAT0MLF offers lower-cost operation in milder environments but omits crypto and high-temp qualification, while MPC5744P delivers higher safety certification depth at the expense of Arm ecosystem compatibility and power efficiency.
Availability
FS32K144WAT0WLFR is available at Aetrix Electronics and suitable for automotive body control, electric power steering, and battery management systems requiring stable component supply across multi-year production cycles and rigorous AEC-Q100 qualification.
Supply support for FS32K144WAT0WLFR 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 leader in automotive semiconductors, delivering secure, energy-efficient processors for vehicle electrification, ADAS, and digital transformation.
The S32K1xx family was designed specifically for automotive electronic control units demanding functional safety (ISO 26262), cybersecurity (UNECE R155), and real-time performance - with FS32K144WAT0WLFR targeting high-temperature under-hood applications.
FAQ
What is the maximum operating frequency of the FS32K144WAT0WLFR?
The FS32K144WAT0WLFR operates at up to 80 MHz in RUN mode. Unlike non-W variants, it does not support 112 MHz HSRUN mode - this limitation is inherent to the S32K14xW series due to thermal and voltage constraints at 150 °C ambient. All timing-critical peripherals (FlexCAN, LPIT, ADC) are fully functional at 80 MHz, and the device maintains ASIL-B compliance at this frequency.
Does the FS32K144WAT0WLFR support CAN-FD, and how many interfaces are available?
Yes, the FS32K144WAT0WLFR integrates three FlexCAN modules, all supporting CAN-FD (ISO 11898-1) with data phase bit rates up to 5 Mbps. Each interface includes dedicated TX/RX pins, message RAM, and flexible filtering - enabling concurrent communication with powertrain, chassis, and ADAS domains without software arbitration overhead.
What security features does the FS32K144WAT0WLFR include, and are they production-ready?
The FS32K144WAT0WLFR includes the Cryptographic Services Engine (CSEc), which implements SHE-compliant AES-128, SHA-256, RNG, and secure key storage. CSEc is fully production-qualified and used in certified secure boot flows. Note: CSEc operations require switching from RUN mode to a dedicated security mode - no HSRUN mode involvement, as that mode is unavailable on this variant.
What is the qualified temperature range for the FS32K144WAT0WLFR, and how does it affect peripheral operation?
The FS32K144WAT0WLFR is qualified for -40 °C to +150 °C ambient temperature in RUN mode. All peripherals - including dual 12-bit ADCs, FlexCAN, Ethernet MAC, and LPIT - maintain full specification across this range. The 150 °C rating enables direct placement in transmission control units and battery disconnect units without external heatsinking.
Is the FS32K144WAT0WLFR pin-compatible with other S32K14x devices?
Yes, all S32K14x and S32K14xW devices sharing the same package (e.g., 144-pin LQFP) are pin-to-pin compatible. FS32K144WAT0WLFR matches the pinout of S32K144HAT0MLF and S32K144UAT0MLF in 144-LQFP, allowing hardware reuse across temperature and feature variants - though firmware must account for differences in CSEc presence and voltage/temperature operating windows.
FS32K144WAT0WLFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S32K
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4F
- Core Size:
- 32-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, I2S, LVD, LVR, POR, PWM, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.13V ~ 5.5V
- Data Converters:
- A/D 23x12b SAR; D/A 6x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
FS32K144WAT0WLFR FAQ
1.How can I place an order for FS32K144WAT0WLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K144WAT0WLFR 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 FS32K144WAT0WLFR reliable?
The price and inventory of FS32K144WAT0WLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K144WAT0WLFR is usually 5 days.
3.What payment methods are accepted for FS32K144WAT0WLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K144WAT0WLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K144WAT0WLFR?
FS32K144WAT0WLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K144WAT0WLFR 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 FS32K144WAT0WLFR?
For technical support, including FS32K144WAT0WLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K144WAT0WLFR requirements.
6.How does Aetrix verify that FS32K144WAT0WLFR is sourced from the original manufacturer or authorized distributors?
All FS32K144WAT0WLFR 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 FS32K144WAT0WLFR meets industry standards.
7.What is the process for return or replacement of FS32K144WAT0WLFR?
All FS32K144WAT0WLFR units undergo pre-shipment inspection (PSI). If there is an issue with FS32K144WAT0WLFR, 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 FS32K144WAT0WLFR part is unused and in its original packaging.
Return procedure for FS32K144WAT0WLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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