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NXP Semiconductors S32K14-M4SCSTL
- Part No.:
- S32K14-M4SCSTL
- Manufacturer:
- NXP Semiconductors
- Category:
- Software, Services
- Package:
- Datasheet:
-
S32K14-M4SCSTL.pdf
- Description:
- AUTO SOFTWARE S32K14 M4 STRUCTUR
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Product details
Overview
S32K14-M4SCSTL from NXP Semiconductors is an automotive-grade 32-bit Arm Cortex-M4F microcontroller designed for real-time control in safety-critical vehicle subsystems. It operates at up to 112 MHz (HSRUN mode), features 2 MB program flash with ECC, 256 KB SRAM with ECC, and supports -40 °C to +125 °C ambient operation. Its integrated CSEc security engine, FlexCAN with optional CAN-FD, and dual 12-bit ADCs enable use in body control modules and battery management systems.
For engineers reviewing the S32K14-M4SCSTL datasheet, S32K14-M4SCSTL pinout, S32K14-M4SCSTL application, or S32K14-M4SCSTL equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing and power mode constraints - including mandatory RUN-mode execution for CSEc operations and EEPROM emulation.
Technical Context
The S32K14-M4SCSTL implements a dual-core architecture with Arm Cortex-M4F as primary execution core and Cortex-M0+ for low-power background tasks, coordinated via AXBS-Lite crossbar switch. It integrates NXP's system-level MPU (not Arm Core MPU) for ASIL-B capable memory protection across all masters (core, DMA, Ethernet).
Its clock system combines SPLL (up to 112 MHz), FIRC (48 MHz), SIRC (8 MHz), and LPO (128 kHz), with dynamic mode switching between HSRUN (112 MHz), RUN (80 MHz), STOP, VLPR, and VLPS. Critical safety functions - CSEc cryptographic operations and FlexNVM EEPROM writes - are explicitly prohibited in HSRUN mode and require transition to RUN mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4F with single-precision FPU and DSP extensions; enables deterministic real-time signal processing and floating-point math in motor control loops. |
| Max Clock Frequency | 112 MHz in HSRUN mode; requires voltage ≥2.97 V when PLL engaged; performance drops to 80 MHz in RUN mode for secure operations. |
| Flash Memory | 2 MB program flash with ECC; supports over-the-air (OTA) updates with error detection and correction for automotive firmware integrity. |
| SRAM | 256 KB on-chip SRAM with ECC; provides fault-tolerant data storage for safety-critical variables and stack usage in ASIL-B applications. |
| ADC | Dual 12-bit SAR ADCs, each supporting up to 32 channels at 1 Msps; enables simultaneous sampling of multiple sensor inputs (e.g., temperature, voltage, current). |
| FlexCAN | Up to three FlexCAN modules with optional CAN-FD support; meets ISO 11898-1 for high-speed in-vehicle networking with extended data payloads. |
| Operating Temperature | -40 °C to +125 °C ambient (M-grade); qualified for under-hood automotive environments where junction temperature reaches 135 °C in RUN mode. |
| Security | Cryptographic Services Engine (CSEc) compliant with SHE specification; performs AES-128, SHA-256, RNG, and key management - but only in RUN mode (80 MHz), not HSRUN. |
Pinout & Package
S32K14-M4SCSTL is packaged in a 100-pin LQFP (Lead-Free, RoHS-compliant) with 0.5 mm pitch, optimized for automotive PCB layouts requiring thermal reliability and EMI robustness. Pin count and I/O availability align with S32K14x family pin-to-pin compatibility across 100-pin variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VREFH | Analog & digital supply rails | Must be shorted on PCB with local decoupling; VDDA/VREFH tolerance ±0.1 V vs. VDD ensures ADC accuracy; 2.7–5.5 V operation (3.13–5.5 V for W-grade variants). |
| RESET_B | Active-low reset input | Asynchronous, level-sensitive; initiates cold start or recovery from fault; compatible with external watchdog monitors (EWM). |
| JTAG/SWD pins (TCK, TMS, TDI, TDO, SWDIO, SWCLK) | Debug interface | Supports Serial Wire Debug (SWD) and JTAG; enables non-intrusive trace, breakpoint, and flash programming during development and field diagnostics. |
| CAN0_TX / CAN0_RX | FlexCAN differential bus interface | Direct connection to external CAN transceiver; supports CAN-FD protocol with bit rates up to 5 Mbps in data phase; requires termination and common-mode filtering. |
| ADC0_SE0–ADC0_SE31 | Analog input channels | Up to 32 single-ended inputs per ADC module; mapped to GPIO pins with configurable multiplexing; supports hardware-triggered conversions via PDB or LPIT. |
| FTM0_CH0–FTM0_CH7 | FlexTimer PWM/OC/IC outputs | Eight-channel 16-bit timer group; used for motor gate drive control, LED dimming, or encoder pulse counting with programmable dead-time insertion. |
Key Features
| Feature | Design Value |
|---|---|
| System MPU | NXP's crossbar-level Memory Protection Unit enforces access rights per master (CPU, DMA, Ethernet), enabling ASIL-B memory isolation without Arm Core MPU dependency. |
| Power Modes | Five distinct modes (HSRUN/RUN/STOP/VLPR/VLPS) with sub-microsecond wake-up from VLPS; PMC-controlled clock gating reduces dynamic power by >90% in idle states. |
| FlexNVM | 64 KB data flash with ECC and EEPROM emulation; allows wear-leveling and atomic write/erase for parameter storage without external EEPROM. |
| QuadSPI + HyperBus™ | External memory interface supporting x4 SPI and HyperBus protocols; enables direct XIP execution from off-chip flash, reducing boot latency and BOM cost. |
| FlexIO | Programmable logic block supporting UART, I²C, SPI, I²S, LIN, or custom protocols; replaces discrete glue logic and reduces PCB layer count in mixed-interface designs. |
| Real-Time Counter | 32-bit RTC with 32.768 kHz crystal input; maintains time-of-day across power cycles and triggers alarms for periodic wake-up or diagnostic scheduling. |
Applications
| Body Control Module | Electric Power Steering (EPS) |
|---|---|
|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC actuators in modern vehicle architectures. IC Role / Device Role / Timing Role: Primary MCU executing ASIL-B software partitions, managing LIN/CAN communication, and performing real-time PWM for actuator drivers. Use Value: Dual ADCs monitor current-sense feedback from multiple motors; FlexCAN handles gateway routing; CSEc secures OTA update authentication. |
Use Scenario: Closed-loop torque assist control with torque sensor fusion, motor position tracking, and fail-safe shutdown. IC Role / Device Role / Timing Role: Real-time controller running at 112 MHz (HSRUN) for motor FOC algorithms; uses FTM timers for precise 3-phase PWM generation. Use Value: 16-bit FlexTimers deliver <100 ns PWM resolution; SRAM ECC prevents corruption of critical control variables; LPIT enables deterministic interrupt latency. |
| Battery Management System (BMS) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
|
Use Scenario: Monitoring cell voltages, temperatures, and pack currents in 12–48 V EV/HEV battery packs with functional safety compliance. IC Role / Device Role / Timing Role: Safety monitor MCU interfacing with analog front-end ICs via SPI/LPI2C; executes ISO 26262 ASIL-C decomposition logic. Use Value: Dual 12-bit ADCs sample up to 64 channels with hardware averaging; CRC module validates communication integrity; WDOG/EWM ensure timely fault response. |
Use Scenario: Aggregating and preprocessing data from radar, camera, and ultrasonic sensors before forwarding to central ADAS domain controller. IC Role / Device Role / Timing Role: Preprocessing node performing time-synchronized timestamping, sensor fusion pre-filtering, and CAN-FD packetization. Use Value: FlexIO emulates proprietary sensor interfaces; QuadSPI loads calibration tables from external flash; RTC synchronizes multi-sensor timestamps to IEEE 1588. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K144W | Same core and peripheral set, but rated for -40 °C to +150 °C ambient; requires minimum 3.13 V supply; lacks HSRUN mode (max 80 MHz). | Targeted at under-hood applications exceeding 125 °C ambient, such as turbocharger control or exhaust gas recirculation (EGR) valves. | Select S32K144W only if 150 °C operation is required and 112 MHz performance is unnecessary; S32K14-M4SCSTL remains optimal for HSRUN-dependent control loops. |
| S32K146 | Higher memory configuration: 2 MB flash, 256 KB SRAM, and 64 KB FlexNVM - identical to S32K14-M4SCSTL - but offered in 144-pin LQFP and 100-pin MAPBGA packages. | Enables higher I/O count (up to 156 GPIOs) and additional peripherals (e.g., second Ethernet MAC, extra FlexCAN) in larger form factors. | Choose S32K146 when board layout requires more GPIOs or dual Ethernet/CAN-FD channels; S32K14-M4SCSTL is preferred for cost-optimized 100-pin LQFP implementations. |
Compared with S32K144W and S32K146, the S32K14-M4SCSTL uniquely balances 112 MHz HSRUN performance, M-grade thermal rating, and 100-pin LQFP packaging - making it the most suitable choice for space-constrained, high-performance automotive control nodes requiring both speed and safety certification.
Availability
S32K14-M4SCSTL is available at Aetrix Electronics and suitable for body control modules, electric power steering systems, and battery management systems requiring stable component supply across automotive production lifecycles.
Supply support for S32K14-M4SCSTL 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 ASIL-certified microcontrollers.
The S32K14-M4SCSTL belongs to the S32K1xx automotive MCU family, engineered specifically for real-time, safety-critical vehicle subsystems - emphasizing ASIL-B compliance, hardware-based security (CSEc), and robust operation across extended temperature ranges.
FAQ
What is the maximum operating frequency of the S32K14-M4SCSTL, and under what conditions is it guaranteed?
The S32K14-M4SCSTL achieves up to 112 MHz in HSRUN mode, but this frequency is only guaranteed when supplied with ≥2.97 V and operating within -40 °C to +125 °C ambient. The device must be configured with SPLL enabled and cannot execute CSEc or EEPROM operations at this speed - those require switching to RUN mode (80 MHz). Electrical performance degrades below 2.7 V supply.
Does the S32K14-M4SCSTL support CAN-FD, and how many instances are available?
Yes, the S32K14-M4SCSTL supports CAN-FD through its FlexCAN modules. It includes up to three FlexCAN controllers, with CAN-FD capability enabled on all three - confirmed in the S32K14x feature comparison table. Each instance supports ISO 11898-1 and offers flexible bit-rate switching for both arbitration and data phases.
Can CSEc cryptographic operations be performed while the S32K14-M4SCSTL runs at 112 MHz?
No. CSEc (Cryptographic Services Engine) operations - including AES encryption, SHA hashing, and key derivation - are explicitly prohibited in HSRUN mode (112 MHz). Attempting them triggers error flags. The S32K14-M4SCSTL must transition to RUN mode (80 MHz) before initiating any CSEc command, as documented in multiple sections of the datasheet.
What package type and pin count does the S32K14-M4SCSTL use?
The S32K14-M4SCSTL uses a 100-pin LQFP package with 0.5 mm pitch, RoHS-compliant and lead-free. This matches the S32K14x family's 100-pin LQFP option and ensures pin-to-pin compatibility with other S32K14x devices in the same package footprint, simplifying design reuse and migration.
How much on-chip SRAM and flash memory does the S32K14-M4SCSTL provide, and what protection features do they include?
The S32K14-M4SCSTL integrates 256 KB of SRAM and 2 MB of program flash memory, both protected by Error-Correcting Code (ECC) for single-bit error correction and double-bit error detection. Additionally, it includes 64 KB of FlexNVM for data flash and EEPROM emulation - also ECC-protected - enabling reliable parameter storage in automotive environments.
S32K14-M4SCSTL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Electronic Delivery
- Product Status:
- Active
- Type:
- License
- Applications:
- -
- Edition:
- -
- License Length:
- -
- License - User Details:
- -
- Operating System:
- -
- For Use With/Related Products:
- -
- Media Delivery Type:
- Electronically Delivered
S32K14-M4SCSTL FAQ
1.How can I place an order for S32K14-M4SCSTL through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K14-M4SCSTL 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 S32K14-M4SCSTL reliable?
The price and inventory of S32K14-M4SCSTL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K14-M4SCSTL is usually 5 days.
3.What payment methods are accepted for S32K14-M4SCSTL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K14-M4SCSTL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K14-M4SCSTL?
S32K14-M4SCSTL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K14-M4SCSTL 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 S32K14-M4SCSTL?
For technical support, including S32K14-M4SCSTL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K14-M4SCSTL requirements.
6.How does Aetrix verify that S32K14-M4SCSTL is sourced from the original manufacturer or authorized distributors?
All S32K14-M4SCSTL 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 S32K14-M4SCSTL meets industry standards.
7.What is the process for return or replacement of S32K14-M4SCSTL?
All S32K14-M4SCSTL units undergo pre-shipment inspection (PSI). If there is an issue with S32K14-M4SCSTL, 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 S32K14-M4SCSTL part is unused and in its original packaging.
Return procedure for S32K14-M4SCSTL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S32K14-M4SCSTL Tags
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