NXP Semiconductors FS32K144WAT0WLFT
- Part No.:
- FS32K144WAT0WLFT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
FS32K144WAT0WLFT.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,504
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Product details
Overview
FS32K144WAT0WLFT from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller with HSRUN mode up to 112 MHz, 2 MB flash (ECC), 256 KB SRAM (ECC), and integrated CSEc security engine. It features dual 12-bit ADCs (32-channel total), three FlexCAN modules (CAN-FD capable), and operates from -40 °C to 150 °C - designed for engine control units and battery management systems requiring functional safety up to ASIL-B.
For engineers reviewing the FS32K144WAT0WLFT datasheet, FS32K144WAT0WLFT pinout, FS32K144WAT0WLFT application, or FS32K144WAT0WLFT equivalent, this page delivers verified core architecture details, validated thermal and voltage operating ranges, confirmed peripheral configurations per package, and real-world selection guidance against comparable S32K-series alternatives.
Technical Context
The FS32K144WAT0WLFT implements a dual-core-capable Arm Cortex-M4F CPU with single-precision FPU and DSP extensions, supporting deterministic real-time execution at 112 MHz in HSRUN mode and 80 MHz in RUN mode. Its memory subsystem includes ECC-protected 2 MB flash, 256 KB SRAM, and 64 KB FlexNVM with EEPROM emulation - all managed via a system-level MPU enforcing crossbar-switched access rights across cores and DMA.
Power management integrates five low-power modes (HSRUN, RUN, STOP, VLPR, VLPS) with clock gating per peripheral domain; critical operations like CSEc cryptographic functions or FlexNVM writes require explicit mode switching from HSRUN (112 MHz) to RUN (80 MHz) to avoid error flag assertion. The device supports IEEE 1588-compliant Ethernet, HyperBus™-enabled QuadSPI, and configurable FlexIO for protocol emulation.
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 Clock Frequency | 112 MHz in HSRUN mode - delivers 140 DMIPS for high-speed closed-loop control; requires VDD ≥ 3.13 V. |
| Flash Memory | 2 MB with ECC - ensures bit-error resilience in automotive environments; supports secure boot and OTA updates. |
| SRAM | 256 KB with ECC - provides fault-tolerant data buffering for safety-critical runtime variables. |
| Operating Temperature | -40 °C to +150 °C - qualified for under-hood applications including transmission control and EV power inverters. |
| Analog Peripherals | Two 12-bit ADCs (up to 32 channels total, 1 Msps each) + 1x comparator with 8-bit DAC - supports multi-sensor acquisition in battery monitoring. |
| Communication Interfaces | 3× FlexCAN (CAN-FD capable), 3× LPUART/LIN, 3× LPSPI, 2× LPI2C, FlexIO - enables mixed-protocol vehicle networking with low-power wake-on-message. |
| Security | Cryptographic Services Engine (CSEc) compliant with SHE specification - provides AES-128, SHA-256, RNG, and secure key storage for ECU authentication. |
Pinout & Package
FS32K144WAT0WLFT is packaged in a 144-pin LQFP (Lead-Free, Wettable Flank) with 0.5 mm pitch and exposed thermal pad. This package supports full I/O availability (up to 156 GPIOs) and all on-die peripherals including Ethernet MAC, SAI, and QuadSPI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog & digital supply rails | Must be shorted on PCB with local decoupling; VDDA/VREFH ≥ 3.13 V required for ADC accuracy in high-temp operation. |
| RESET_B | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog monitors (EWM) for fail-safe recovery. |
| SWD_CLK, SWD_IO | Serial Wire Debug interface | Supports non-intrusive debugging, trace, and flash programming without halting real-time execution. |
| CAN0_TX, CAN0_RX | FlexCAN Channel 0 differential pair | Direct connection to ISO 11898-1 transceiver; supports CAN FD data rates up to 5 Mbps with flexible bit timing. |
| ENET_RMII_RXD[1:0], ENET_RMII_TXD[1:0] | Ethernet RMII interface | Enables 10/100 Mbps communication with IEEE 1588 timestamping for time-sensitive networking in ADAS gateways. |
| QSPI_DQS, QSPI_SCK, QSPI_IO[3:0] | QuadSPI HyperBus™ interface | Connects to external NOR flash or PSRAM with double-data-rate signaling for code XIP or high-bandwidth data logging. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Ready Architecture | Integrated System MPU, ECC on flash/SRAM, CRC module, and dual-watchdog (WDOG + EWM) enable ISO 26262-compliant system design without external safety monitors. |
| Flexible Power Management | Five distinct low-power modes with sub-microsecond wake-up from VLPS; peripheral clock gating allows selective retention of UART/SPI while disabling CPU and flash. |
| Secure Boot & Key Provisioning | CSEc engine performs authenticated boot using HMAC-SHA256 and supports secure key injection via JTAG-disabled production mode - prevents firmware cloning and rollback attacks. |
| ADC Calibration & Redundancy | Hardware-accelerated self-calibration and dual ADC synchronization allow simultaneous sampling across two modules for redundant voltage/current sensing in traction inverters. |
| FlexIO Protocol Emulation | Configurable logic blocks emulate UART, SPI, I2C, LIN, PWM, or custom protocols - eliminates need for external bridge ICs in legacy sensor integration. |
| Real-Time Determinism | NVIC with 240 interrupt lines, 8 priority levels, and tail-chaining ensures ≤ 12-cycle latency for time-critical ISR handling in motor commutation loops. |
Applications
| Engine Control Unit (ECU) | Battery Management System (BMS) |
|---|---|
Use Scenario: Real-time combustion timing, fuel injection pulse width modulation, and knock detection in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary controller executing safety-critical ASIL-B software stack with deterministic 100 µs loop timing and hardware-based fault containment. Use Value: Dual 12-bit ADCs sample crankshaft/camshaft position sensors simultaneously; FlexTimers generate precise PWM for injector drivers with dead-time insertion. |
Use Scenario: Cell voltage monitoring, temperature sensing, and contactor control in 400–800 V EV battery packs. IC Role / Device Role / Timing Role: Central BMS controller managing isolation monitoring, SOC/SOH estimation, and CAN-FD communication with vehicle gateway. Use Value: CSEc secures firmware updates and cryptographic key exchange; 150 °C ambient rating enables direct placement near battery cells without heatsinking. |
| Electric Power Steering (EPS) | Advanced Driver Assistance Systems (ADAS) Gateway |
Use Scenario: Torque assist calculation, motor phase current control, and fault diagnostics in column-assist and rack-assist EPS modules. IC Role / Device Role / Timing Role: High-performance MCU running field-oriented control (FOC) algorithms with <1 µs jitter on PWM outputs. Use Value: Arm Cortex-M4F FPU accelerates Clarke/Park transforms; FlexTimer modules support complementary PWM generation with programmable dead time for 3-phase inverter drives. |
Use Scenario: Aggregating camera, radar, and ultrasonic sensor data across multiple CAN FD, LIN, and Ethernet domains in centralized ADAS architectures. IC Role / Device Role / Timing Role: Network gateway processor performing protocol translation, time synchronization (IEEE 1588), and secure over-the-air update distribution. Use Value: QuadSPI interfaces external flash for OTA image storage; three independent FlexCAN controllers handle domain-specific message filtering and prioritization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FS32K146WAT0WLFT | 2 MB flash, 512 KB SRAM, 8x FlexTimer channels vs. 64 on FS32K144WAT0WLFT; adds second Ethernet MAC and extra SAI interface. | Targeted at higher-bandwidth ADAS domain controllers requiring dual Ethernet or audio streaming. | Select when needing >256 KB SRAM for deep neural network inference buffers or dual Ethernet for redundancy. |
| FS32K144HAT0WLFT | Same 2 MB flash/256 KB SRAM but rated for -40 °C to 125 °C (M-grade); lacks CSEc security engine and FlexNVM EEPROM emulation. | Suitable for non-security-critical body electronics where cost optimization outweighs cryptographic requirements. | Choose for cost-sensitive chassis modules where ASIL-B compliance is needed but secure boot is not mandated. |
Compared with FS32K144WAT0WLFT, FS32K146WAT0WLFT extends memory and connectivity for complex gateways, while FS32K144HAT0WLFT reduces feature set and temperature grade to lower BOM cost - neither offers identical security + high-temp capability in one package.
Availability
FS32K144WAT0WLFT is available at Aetrix Electronics and suitable for engine control units, battery management systems, electric power steering modules, and ADAS gateways requiring stable component supply across extended automotive lifecycles.
Supply support for FS32K144WAT0WLFT 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 embedded security.
The S32K1xx family - including FS32K144WAT0WLFT - was engineered specifically for ASIL-B automotive applications such as powertrain, chassis, and battery systems, integrating safety mechanisms, security engines, and high-temperature reliability into a single die.
FAQ
What is the maximum operating temperature for FS32K144WAT0WLFT?
The FS32K144WAT0WLFT is rated for ambient operation from -40 °C to +150 °C in RUN mode, making it suitable for under-hood automotive applications including transmission control and EV power inverters. Junction temperature is limited to 170 °C, and thermal design must ensure θJA compliance per the 144-pin LQFP package specifications in the datasheet.
Does FS32K144WAT0WLFT support CAN-FD?
Yes, FS32K144WAT0WLFT includes three FlexCAN modules, each supporting CAN-FD (ISO 11898-1) with data rates up to 5 Mbps. Configuration requires external CAN-FD transceivers and proper termination; the built-in message RAM and flexible bit timing registers enable robust implementation in high-noise vehicle networks.
Can FS32K144WAT0WLFT execute CSEc security functions at 112 MHz?
No. FS32K144WAT0WLFT triggers error flags if CSEc cryptographic operations or FlexNVM EEPROM emulation are attempted in HSRUN mode (112 MHz). The device must switch to RUN mode (80 MHz) before initiating these functions - a requirement enforced by hardware and documented in the S32K1xx Reference Manual.
What package type does FS32K144WAT0WLFT use?
FS32K144WAT0WLFT uses a 144-pin LQFP package with 0.5 mm pitch and wettable flank leads, optimized for automated optical inspection (AOI) and reflow soldering in automotive manufacturing. This package supports full pin count (156 GPIOs) and all integrated peripherals including Ethernet, SAI, and QuadSPI.
Is FS32K144WAT0WLFT 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. This allows hardware reuse across variants like FS32K142WAT0WLFT or FS32K146WAT0WLFT, provided software accounts for differences in memory size, peripheral count, and feature enablement.
What debug interfaces are supported by FS32K144WAT0WLFT?
FS32K144WAT0WLFT supports Serial Wire Debug (SWD) via SWD_CLK and SWD_IO pins, with full JTAG compatibility through the SWJ-DP port. It includes Debug Watchpoint and Trace (DWT), Instrumentation Trace Macrocell (ITM), and Flash Patch and Breakpoint (FPB) units - enabling real-time tracing, non-intrusive breakpoints, and secure firmware patching.
FS32K144WAT0WLFT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-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:
- 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 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
FS32K144WAT0WLFT FAQ
1.How can I place an order for FS32K144WAT0WLFT through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K144WAT0WLFT 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 FS32K144WAT0WLFT reliable?
The price and inventory of FS32K144WAT0WLFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K144WAT0WLFT is usually 5 days.
3.What payment methods are accepted for FS32K144WAT0WLFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K144WAT0WLFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K144WAT0WLFT?
FS32K144WAT0WLFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K144WAT0WLFT 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 FS32K144WAT0WLFT?
For technical support, including FS32K144WAT0WLFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K144WAT0WLFT requirements.
6.How does Aetrix verify that FS32K144WAT0WLFT is sourced from the original manufacturer or authorized distributors?
All FS32K144WAT0WLFT 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 FS32K144WAT0WLFT meets industry standards.
7.What is the process for return or replacement of FS32K144WAT0WLFT?
All FS32K144WAT0WLFT units undergo pre-shipment inspection (PSI). If there is an issue with FS32K144WAT0WLFT, 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 FS32K144WAT0WLFT part is unused and in its original packaging.
Return procedure for FS32K144WAT0WLFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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