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NXP Semiconductors FS32K116BRT0MLFT
- Part No.:
- FS32K116BRT0MLFT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
FS32K116BRT0MLFT.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
FS32K116BRT0MLFT from NXP Semiconductors is an automotive-grade Arm® Cortex-M0+ microcontroller designed for functional safety-critical body electronics and powertrain control. It operates at up to 48 MHz, supports -40 °C to 125 °C ambient temperature, integrates 128 KB flash with ECC, 25 KB SRAM, and features CSEc security engine, FlexCAN (1 channel), and LPUART/LIN interfaces.
For engineers reviewing the FS32K116BRT0MLFT datasheet, FS32K116BRT0MLFT pinout, FS32K116BRT0MLFT application, or FS32K116BRT0MLFT equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases in automotive subsystems, and validated alternative options aligned with ISO 26262 ASIL-B requirements.
Technical Context
The FS32K116BRT0MLFT implements an Arm Cortex-M0+ core with Thumb®-2 ISA, integrated NVIC, and system-level memory protection via NXP's Crossbar-based MPU-not Arm Core MPU-enabling access rights assignment per master (Core, DMA) to protected memory regions. It uses FIRC (48 MHz) as primary clock source and supports HSRUN mode only up to 48 MHz (not 112 MHz), distinguishing it from M4F variants.
Power management includes five modes (HSRUN, RUN, STOP, VLPR, VLPS), but HSRUN mode is disabled for CSEc operations or EEPROM emulation-requiring a switch to RUN mode (48 MHz) for secure writes. Its analog subsystem comprises one 12-bit ADC (1 Msps, up to 32 channels), one comparator with 8-bit DAC, and dedicated low-power timers (LPTMR, LPIT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, Thumb-2 ISA, no FPU or DSP-optimized for deterministic low-power control tasks. |
| Max Clock Frequency | 48 MHz (FIRC-based); no SPLL support-limits high-performance compute but ensures stable timing for safety-critical functions. |
| Flash Memory | 128 KB program flash with ECC-supports robust code storage and error detection in harsh automotive environments. |
| SRAM | 25 KB on-chip SRAM with ECC-provides fault-tolerant data retention for runtime variables and stack operations. |
| Operating Temperature | -40 °C to +125 °C (M-grade)-qualified for under-hood applications including engine control modules and battery management units. |
| FlexCAN Interface | 1 channel, LIN-capable LPUART/LIN module-enables communication with sensors and actuators in distributed vehicle networks. |
| Security Engine | Cryptographic Services Engine (CSEc)-implements SHE-compliant AES, SHA, RNG, and key management for secure boot and firmware updates. |
| Package | 48-pin LQFP (LF package code)-standard footprint compatible with automated SMT assembly and thermal management in compact ECUs. |
Pinout & Package
FS32K116BRT0MLFT is housed in a 48-pin LQFP (LF) package with 0.5 mm pitch, 7 mm × 7 mm body size, and exposed thermal pad. Pin assignments are defined in the S32K11x Reference Manual IO Signal Description sheet, supporting up to 43 GPIOs with interrupt capability, dedicated debug (SWD), reset, and power/ground distribution optimized for automotive EMI resilience.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Power supply inputs | Separate digital/analog rails with ≤0.1 V differential tolerance-requires tight PCB decoupling per AN5032 to maintain ADC accuracy. |
| RESET_b | Active-low reset input | Asynchronous reset signal with internal pull-up; must be held low ≥100 ns for reliable device initialization. |
| SWD_CLK / SWD_IO | Serial Wire Debug interface | Two-pin debug port supporting full SWD protocol-enables non-intrusive firmware validation and trace without JTAG pins. |
| CAN_TX / CAN_RX | FlexCAN transceiver interface | Dedicated differential pair for CAN 2.0B communication; requires external transceiver and termination for bus compliance. |
| PTA0–PTA31, PTB0–PTB11 | GPIO multiplexing ports | 43 total configurable I/Os with programmable pull-up/down, slew rate control, and glitch filtering-suited for switch sensing and PWM output. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 26262 ASIL-B capable architecture | System MPU enforces memory access rights across all masters (Core, DMA), CRC module validates data integrity, and WDOG/EWM provide dual watchdog supervision. |
| Functional safety peripherals | LPIT (4-channel), LPTMR, and PDB enable precise timing for safety state monitoring, wake-up sequencing, and hardware-triggered diagnostics. |
| Secure firmware execution | CSEc supports AES-128/256, SHA-256, and true RNG-enables authenticated boot, encrypted OTA updates, and key provisioning without external secure element. |
| Automotive-qualified mixed-signal integration | Single 12-bit ADC with 32-channel mux and 1 Msps sampling-meets resolution and speed requirements for throttle position, temperature, and pressure sensing. |
| Low-power operation | VLPR/VLPS modes achieve sub-μA sleep current; LPUART/LPSPI retain communication capability during deep sleep-extends battery life in always-on modules. |
Applications
| Body Control Module (BCM) | Door Module Control |
|---|---|
|
Use Scenario: Centralized management of lighting, window lift, mirror adjustment, and door lock actuation in modern vehicles. IC Role / Device Role / Timing Role: Main controller executing ASW-compliant state machines, coordinating LIN slaves, and handling CAN message routing between domains. Use Value: 48 MHz deterministic execution, 43 GPIOs for direct sensor/actuator interfacing, and CSEc-enforced secure firmware updates prevent unauthorized reprogramming. |
Use Scenario: Localized control of power windows, central locking, and anti-pinch detection in vehicle door assemblies. IC Role / Device Role / Timing Role: Real-time motor control via PWM outputs, analog feedback acquisition from current sensors, and LIN communication with BCM. Use Value: Integrated 12-bit ADC (1 Msps) enables precise current monitoring; LPIT and LPTMR support sub-millisecond timing for safety-critical pinch detection logic. |
| Engine Start-Stop Controller | Seat Position Memory System |
|
Use Scenario: Managing automatic engine shutdown/restart based on vehicle speed, brake status, and battery voltage in mild hybrid architectures. IC Role / Device Role / Timing Role: Safety-critical supervisor monitoring crankshaft/camshaft signals, controlling starter relay, and validating battery health via ADC. Use Value: -40 °C to +125 °C operation ensures reliability under hood; ECC-protected flash prevents corruption during voltage transients during cranking. |
Use Scenario: Storing and recalling multi-position seat configurations using non-volatile memory emulation and user interface inputs. IC Role / Device Role / Timing Role: EEPROM-emulated FlexRAM stores seat profiles; GPIOs read potentiometer feedback and drive motor drivers via PWM. Use Value: 4 KB FlexRAM configured as EEPROM provides 100k-cycle endurance without external memory; CSEc secures stored user preferences against tampering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FS32K118BRT0MLFT | Same M0+ core, 256 KB flash, 32 KB SRAM, identical 48-pin LQFP package and peripheral set-only differs in memory size. | Preferred where larger firmware image or extended data logging is required without changing PCB layout or driver software. | Select when future firmware growth or diagnostic data buffering demands >128 KB flash; pin-compatible drop-in upgrade path exists. |
| S32K142WFT0VLHT | M4F core (80 MHz), 256 KB flash, 512 KB SRAM, 64-pin LQFP, supports Ethernet and dual CAN-FD-but requires higher VDD (3.13–5.5 V) and wider temperature range (-40 °C to +150 °C). | Suitable for gateway or domain controller roles requiring higher compute throughput, network connectivity, or extended thermal envelope. | Choose only if application needs >48 MHz performance, IEEE-1588 Ethernet, or operation beyond +125 °C; not pin-compatible-requires PCB redesign. |
Compared with FS32K116BRT0MLFT, FS32K118BRT0MLFT offers scalable memory within identical footprint and safety architecture, while S32K142WFT0VLHT delivers higher performance and expanded connectivity at the cost of increased power, voltage, and layout complexity.
Availability
FS32K116BRT0MLFT is available at Aetrix Electronics and suitable for automotive body electronics, powertrain control units, and battery management systems requiring stable component supply, long lifecycle support, and ASIL-B compliance.
Supply support for FS32K116BRT0MLFT 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, high-reliability solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive-grade MCU design.
The S32K1xx family-including FS32K116BRT0MLFT-is engineered specifically for ASIL-B automotive applications such as body control, chassis, and powertrain, emphasizing safety-certifiable architecture, robust EMC performance, and long-term automotive qualification.
FAQ
What is the maximum operating frequency of the FS32K116BRT0MLFT?
The FS32K116BRT0MLFT operates at a maximum frequency of 48 MHz using the Fast Internal RC oscillator (FIRC). Unlike M4F variants in the S32K1xx family, it does not support SPLL-based HSRUN mode at 112 MHz. This 48 MHz limit ensures deterministic timing and thermal stability for safety-critical automotive functions implemented in FS32K116BRT0MLFT.
Does the FS32K116BRT0MLFT support CAN FD?
No, the FS32K116BRT0MLFT integrates a single FlexCAN module compliant with CAN 2.0B only-not CAN FD. The ordering code "F" (for CAN FD) is absent in its part number structure, and the S32K11x feature comparison confirms CAN FD is exclusive to S32K14x and S32K14xW series devices. FS32K116BRT0MLFT supports standard CAN communication at up to 1 Mbps.
What package type and pin count does the FS32K116BRT0MLFT use?
The FS32K116BRT0MLFT uses a 48-pin LQFP package (package code LF), measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package supports 43 GPIOs, SWD debug, FlexCAN, LPUART, and power/ground connections-designed for automated assembly and thermal reliability in automotive control modules.
Is the FS32K116BRT0MLFT qualified for automotive safety standards?
Yes, the FS32K116BRT0MLFT is designed to support ISO 26262 ASIL-B compliance. It includes hardware safety mechanisms such as ECC on flash/SRAM, system-level MPU, CRC module, dual watchdogs (WDOG and EWM), and lockstep-capable peripherals. While certification is system-level, FS32K116BRT0MLFT provides the foundational safety features required for ASIL-B automotive applications.
Can the FS32K116BRT0MLFT execute CSEc security operations in HSRUN mode?
No, CSEc (Cryptographic Services Engine) operations-including AES encryption, key generation, or secure boot verification-cannot be executed in HSRUN mode on the FS32K116BRT0MLFT. The device must switch to RUN mode (48 MHz) to perform any CSEc or EEPROM emulation write/erase function, as confirmed in the S32K1xx Data Sheet Rev. 15 section 1.1 and Figure 3 footnotes.
FS32K116BRT0MLFT 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®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, FlexIO, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PWM, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 17K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 13x12b SAR; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
FS32K116BRT0MLFT FAQ
1.How can I place an order for FS32K116BRT0MLFT through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K116BRT0MLFT 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 FS32K116BRT0MLFT reliable?
The price and inventory of FS32K116BRT0MLFT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K116BRT0MLFT is usually 5 days.
3.What payment methods are accepted for FS32K116BRT0MLFT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K116BRT0MLFT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K116BRT0MLFT?
FS32K116BRT0MLFT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K116BRT0MLFT 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 FS32K116BRT0MLFT?
For technical support, including FS32K116BRT0MLFT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K116BRT0MLFT requirements.
6.How does Aetrix verify that FS32K116BRT0MLFT is sourced from the original manufacturer or authorized distributors?
All FS32K116BRT0MLFT 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 FS32K116BRT0MLFT meets industry standards.
7.What is the process for return or replacement of FS32K116BRT0MLFT?
All FS32K116BRT0MLFT units undergo pre-shipment inspection (PSI). If there is an issue with FS32K116BRT0MLFT, 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 FS32K116BRT0MLFT part is unused and in its original packaging.
Return procedure for FS32K116BRT0MLFT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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