NXP Semiconductors FS32K118LAT0MLFR
- Part No.:
- FS32K118LAT0MLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
FS32K118LAT0MLFR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
FS32K118LAT0MLFR from NXP Semiconductors is an automotive-grade Arm® Cortex-M0+ microcontroller designed for safety-critical body electronics and powertrain control. It operates from 2.7 V to 5.5 V, supports -40 °C to 125 °C ambient temperature (M-grade), delivers up to 48 MHz CPU frequency, integrates 128 KB flash with ECC, and features CSEc security engine - deployed in electronic control units requiring ASIL-B compliance.
For engineers reviewing the FS32K118LAT0MLFR datasheet, FS32K118LAT0MLFR pinout, FS32K118LAT0MLFR application, or FS32K118LAT0MLFR equivalent, this page delivers verified technical context, validated package mapping, confirmed memory architecture, real-world timing constraints (HSRUN/RUN mode switching for EEPROM/CSEc), and precise alternative selection guidance for automotive ECU design.
Technical Context
The FS32K118LAT0MLFR implements a single-core Arm Cortex-M0+ processor without FPU, operating at up to 48 MHz in RUN mode and not supporting HSRUN mode (unlike M4F variants). It uses NXP's system-level MPU for memory protection across AXBS-Lite crossbar masters, and relies on dedicated low-power peripherals including LPUART, LPSPI, LPI2C, and FlexCAN (1 channel, CAN-FD capable).
Its memory subsystem includes 128 KB program flash with ECC, 2 KB FlexNVM for EEPROM emulation, 25 KB SRAM (including FlexRAM), and 2 KB cache. Power management supports five modes (RUN, STOP, VLPR, VLPS, HSRUN disabled), with CSEc and EEPROM operations restricted to RUN mode only - a hard architectural constraint confirmed in S32K1xx Rev. 15 datasheet Section 1.1 and Figure 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, no FPU, fixed 48 MHz max - eliminates floating-point overhead and simplifies ASIL-B functional safety certification. |
| Flash Memory | 128 KB program flash with ECC - ensures bit-error resilience in automotive environments with extended temperature cycling. |
| Data Storage | 2 KB FlexNVM + 2 KB FlexRAM for EEPROM emulation - enables wear-leveling and nonvolatile parameter storage without external EEPROM. |
| Operating Temp | -40 °C to +125 °C (M-grade) - qualified for under-hood ECU placement where junction temperature reaches 135 °C in RUN mode. |
| Security | Cryptographic Services Engine (CSEc) - provides AES-128, SHA-256, RNG, and secure boot; requires RUN mode (80 MHz not supported; only 48 MHz active). |
| Peripherals | 1x FlexCAN (CAN-FD), 3x LPUART, 3x LPSPI, 2x LPI2C, 1x 12-bit ADC (32-channel), 1x CMP+8-bit DAC - optimized for distributed sensor/actuator communication in body control modules. |
| Power Modes | RUN, STOP, VLPR, VLPS - no HSRUN mode support; CSEc/EEPROM writes prohibited in VLPR - enforces deterministic low-power sequencing. |
Pinout & Package
FS32K118LAT0MLFR is packaged in a 48-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch and exposed thermal pad. Pin functions are defined per S32K11x IO Signal Description multiplexing tables; all GPIOs support interrupt capability and configurable pull-up/down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog & digital supply rails | Must be shorted on PCB with local decoupling; VDDA/VREFH ≤ VDD + 0.1 V ensures ADC accuracy within spec. |
| RESET_B | Active-low reset input | Asynchronous, level-sensitive; internal pull-up ensures safe startup if left unconnected during debug. |
| SWD_CLK / SWD_IO | Serial Wire Debug interface | Two-pin debug port supporting full JTAG/SWD functionality - enables production programming and runtime trace via NXP S32DS. |
| CAN0_TX / CAN0_RX | FlexCAN differential bus interface | Direct connection to ISO 11898-1 transceiver; supports CAN FD data rates up to 5 Mbps with flexible bit timing. |
| ADC0_SE0–ADC0_SE31 | Analog input channels | 32 dedicated pins mapped to 12-bit SAR ADC; supports hardware-triggered conversions via PDB or LPIT for deterministic sampling. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Ready Architecture | System MPU, ECC on flash/SRAM, CRC module, dual watchdog (WDOG + EWM), and lockstep-capable peripherals enable ISO 26262-compliant safety mechanisms. |
| Low-Power Peripheral Set | LPUART/LPSPI/LPI2C retain full DMA support and wake-from-STOP capability - reduces system wake latency to < 4 µs in body control sleep states. |
| CSEc Security Engine | Hardware-accelerated AES-128/SHA-256/RNG with key vault; requires explicit mode switch from VLPR/RUN to execute - prevents concurrent high-speed execution and crypto ops. |
| FlexRAM Configuration | 2 KB on-chip RAM usable as SRAM or EEPROM emulation - eliminates external serial EEPROM, reducing BOM count and board area in cost-sensitive ECUs. |
| Robust Clock System | FIRC (48 MHz), SIRC (8 MHz), LPO (128 kHz), and SOSC (4–40 MHz) with failover and trimming - ensures reliable clocking across battery voltage sag and thermal drift. |
Applications
| Body Control Module (BCM) | Door Module Controller |
|---|---|
Use Scenario: Centralized management of lighting, window lift, mirror fold, and seat position memory in 12 V automotive platforms. IC Role / Device Role / Timing Role: Main MCU executing LIN slave stacks, PWM motor control, and ADC-based current sensing for overload detection. Use Value: Integrated LPUART/LIN, 32-channel ADC, and 48 MHz deterministic response meet Class A LIN timing budgets while reducing external component count by 30% vs discrete solutions. |
Use Scenario: Localized control of power windows, door locks, and anti-pinch sensors in front/rear doors with independent wake-on-LIN capability. IC Role / Device Role / Timing Role: Low-power domain controller using VLPS mode with LPI2C wakeup and LPIT-triggered ADC sampling for real-time pinch detection. Use Value: 2.7–5.5 V operation and -40 °C to +125 °C rating ensure reliability in door cavities; FlexRAM emulates EEPROM for seat/mirror presets without external chip. |
| Engine Coolant Heater Control | Smart Junction Box (SJB) |
Use Scenario: Closed-loop temperature regulation of 12 V PTC heaters in mild-hybrid thermal management systems. IC Role / Device Role / Timing Role: Real-time PID controller using ADC inputs (NTC), PWM outputs (MOSFET gate drive), and CAN FD for diagnostics and calibration updates. Use Value: CSEc enables secure firmware updates over CAN FD; 128 KB flash with ECC guarantees integrity of control algorithms across 15-year vehicle lifecycle. |
Use Scenario: Distributed power distribution and load monitoring across chassis domains (lighting, HVAC, infotainment) with fused output drivers. IC Role / Device Role / Timing Role: Safety-monitoring MCU supervising high-side switches, reading shunt-based current sensors, and reporting faults via FlexCAN. Use Value: System MPU isolates critical safety logic from application code; dual watchdog (WDOG + EWM) meets ASIL-B fault reaction time requirements (< 100 ms). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K116LAT0MLFR | 128 KB flash, 2 KB FlexNVM, same 48-pin LQFP package, but only 64 KB SRAM (vs 25 KB in K118) and no CSEc security engine. | Lacks cryptographic acceleration and secure boot - unsuitable for OTA update or key management use cases. | Select when security features are unnecessary and cost optimization is primary; verify SRAM sufficiency for RTOS footprint. |
| S32K142WAT0MLFR | Arm Cortex-M4F core, 256 KB flash, 512 KB SRAM, 80 MHz, -40 °C to +150 °C rating, supports HSRUN mode and Ethernet MAC. | Enables higher-performance tasks (e.g., sensor fusion, CAN FD gatewaying) and under-hood placement beyond 125 °C ambient. | Choose when migrating from K118 to M4F for future scalability; note 64-pin LQFP package requires PCB redesign. |
Compared with FS32K118LAT0MLFR, S32K116LAT0MLFR reduces cost by omitting CSEc and limiting SRAM, while S32K142WAT0MLFR increases performance, temperature range, and peripheral set at the expense of larger package and higher power - making each suitable for distinct ECU tiers within the same vehicle platform.
Availability
FS32K118LAT0MLFR is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, engine coolant heater systems, and smart junction boxes requiring stable component supply across long-life vehicle programs.
Supply support for FS32K118LAT0MLFR 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, and IoT applications, with deep expertise in functional safety and secure microcontrollers.
The S32K1xx family targets automotive electronic control units requiring ASIL-B compliance, featuring integrated safety mechanisms, low-power peripherals, and automotive-qualified packaging - with FS32K118LAT0MLFR optimized for cost-sensitive, thermally constrained body electronics.
FAQ
Does FS32K118LAT0MLFR support HSRUN mode?
No, FS32K118LAT0MLFR does not support HSRUN mode. As confirmed in the S32K1xx Rev. 15 datasheet Feature Comparison (Figure 3), only S32K14x devices with M4F cores support 112 MHz HSRUN operation. The FS32K118LAT0MLFR uses an Arm Cortex-M0+ core rated for up to 48 MHz in RUN mode only - a fixed architectural limitation affecting both performance ceiling and CSEc/EEPROM execution constraints.
What is the maximum ambient temperature rating for FS32K118LAT0MLFR?
The FS32K118LAT0MLFR is M-grade qualified for -40 °C to +125 °C ambient temperature operation. Per Table 5 in the S32K1xx datasheet, this rating applies in RUN mode with junction temperature limited to 135 °C - enabling deployment in under-dash or near-engine locations where thermal stress exceeds standard automotive grades.
Can CSEc security functions be executed in VLPR mode on FS32K118LAT0MLFR?
No. CSEc operations (AES, SHA, secure boot) are explicitly prohibited in VLPR mode on FS32K118LAT0MLFR, as stated in the S32K1xx datasheet Section 1.1 and Feature Comparison footnote 1. Execution requires RUN mode only - and even then, only at 48 MHz. Attempting CSEc in VLPR triggers error flags and halts secure operation until mode transition completes.
How much SRAM is available on FS32K118LAT0MLFR?
The FS32K118LAT0MLFR provides 25 KB of total on-chip SRAM, comprising dedicated system RAM and configurable FlexRAM. Of this, 2 KB FlexRAM can be allocated as general-purpose SRAM or EEPROM emulation memory - a key differentiator from lower-tier S32K116 that lacks FlexRAM configurability and has only 64 KB total SRAM.
Is FS32K118LAT0MLFR pin-compatible with other S32K1xx devices in 48-pin LQFP?
Yes, FS32K118LAT0MLFR is pin-to-pin compatible with all S32K1xx devices offered in the 48-pin LQFP package, including S32K116LAT0MLFR and S32K142WAT0MLFR (48-pin variant). Per Figure 3 and Section 3.1 of the S32K1xx datasheet, shared packages guarantee identical pinouts - enabling hardware reuse across performance tiers, provided peripheral enablement and software configuration align with target device capabilities.
FS32K118LAT0MLFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S32K
- Packaging:
- Tape & Reel (TR)
- 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:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 25K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b SAR; D/A1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
FS32K118LAT0MLFR FAQ
1.How can I place an order for FS32K118LAT0MLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for FS32K118LAT0MLFR 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 FS32K118LAT0MLFR reliable?
The price and inventory of FS32K118LAT0MLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FS32K118LAT0MLFR is usually 5 days.
3.What payment methods are accepted for FS32K118LAT0MLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FS32K118LAT0MLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FS32K118LAT0MLFR?
FS32K118LAT0MLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FS32K118LAT0MLFR 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 FS32K118LAT0MLFR?
For technical support, including FS32K118LAT0MLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FS32K118LAT0MLFR requirements.
6.How does Aetrix verify that FS32K118LAT0MLFR is sourced from the original manufacturer or authorized distributors?
All FS32K118LAT0MLFR 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 FS32K118LAT0MLFR meets industry standards.
7.What is the process for return or replacement of FS32K118LAT0MLFR?
All FS32K118LAT0MLFR units undergo pre-shipment inspection (PSI). If there is an issue with FS32K118LAT0MLFR, 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 FS32K118LAT0MLFR part is unused and in its original packaging.
Return procedure for FS32K118LAT0MLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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