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NXP Semiconductors S32K314EHT1MMMST
- Part No.:
- S32K314EHT1MMMST
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 257-LFBGA
- Datasheet:
-
S32K314EHT1MMMST.pdf
- Description:
- S32K344 PHANTOM, 257MAPBGA, PROD
- Quantity:
- Payment:
- Shipping:
Inventory:1,604
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Product details
Overview
S32K314EHT1MMMST from NXP Semiconductors is an ASIL-B qualified, single-core Arm Cortex-M7 automotive microcontroller operating up to 160 MHz, featuring 4 MB ECC-protected program flash, 512 KB ECC SRAM (including 192 KB TCM), and support for CAN FD, Ethernet AVB/TSN, and QuadSPI at 480 Mbps. It targets body control modules, gateway ECUs, and chassis domain controllers in harsh automotive environments.
For engineers reviewing the S32K314EHT1MMMST datasheet, S32K314EHT1MMMST pinout, S32K314EHT1MMMST application, or S32K314EHT1MMMST equivalent, key selection criteria include its 160 MHz M7 core with FPU/DSP, triple 12-bit ADCs (24-channel each), FlexIO for protocol emulation, and integrated safety features including ECC on all memories, SWT timers, and XRDC-based access control.
Technical Context
The S32K314EHT1MMMST implements a single high-performance Arm Cortex-M7 core with Thumb®-2 ISA, single-precision FPU, and DSP extensions, optimized for deterministic real-time control with zero-wait I/D-TCM. Its memory subsystem includes 4 MB program flash with read-while-write (RWW) capability and A/B swap for OTA updates.
Timing and communication are managed via three eMIOS modules (72 timer channels), six LPSPI, two LPI2C, sixteen LPUART (LIN-capable), six FlexCAN channels with full CAN FD support, one 100 Mbps Ethernet AVB/TSN interface, and one QuadSPI controller supporting 4-bit data width at up to 480 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 @ 160 MHz with FPU, DSP, and Thumb-2 ISA - enables high-speed signal processing and floating-point math for motor control and sensor fusion. |
| Flash Memory | 4 MB program flash with ECC and RWW/A-B swap - supports robust OTA firmware updates without runtime interruption. |
| SRAM | 512 KB SRAM with ECC, including 192 KB TCM - ensures low-latency, deterministic access for time-critical control loops. |
| Analog Peripherals | Three 12-bit ADCs (24-channel each), three analog comparators with internal 8-bit DACs, and one temperature sensor - provides comprehensive mixed-signal acquisition for battery monitoring and thermal management. |
| Communication Interfaces | 6 × FlexCAN (CAN FD), 16 × LPUART (LIN), 6 × LPSPI, 2 × LPI2C, 1 × 100 Mbps Ethernet (AVB/TSN), 1 × QuadSPI (480 Mbps, 4-bit) - delivers scalable, fault-tolerant networking for automotive domain controllers. |
| Safety & Security | ASIL-B compliance, ECC on all memories, dual SWT timers, XRDC access control, CRC module, and 64-bit unique ID - meets ISO 26262 requirements for functional safety and secure boot integrity. |
| Operating Range | 2.97 V to 5.5 V supply voltage, −40 °C to +125 °C ambient temperature - validated for under-hood and powertrain-adjacent deployment. |
Pinout & Package
Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed pad (EP) for thermal dissipation. Pin count: 437 terminals. Compatible with standard reflow profiles and automotive-grade PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power/ground | Separate analog supply domain for ADC/CMP reference stability; requires local decoupling per datasheet layout guidelines. |
| FXOSC_IN / FXOSC_OUT | External crystal oscillator input/output | Supports 8–40 MHz crystals for precise clock generation; required for system PLL and high-accuracy timing applications. |
| ENET_RXD0–3 / ENET_TXD0–3 | Ethernet physical layer interface | Dedicated RMII/MII pins for 100 Mbps Ethernet AVB/TSN - enables time-sensitive networking in vehicle gateways. |
| CAN0_TX / CAN0_RX … CAN5_TX / CAN5_RX | FlexCAN differential signal pairs | 6 independent CAN FD transceiver interfaces with configurable bit rates up to 5 Mbps - supports multi-bus diagnostics and domain communication. |
| QSPI_DATA0–3 / QSPI_SCLK / QSPI_SS | QuadSPI bus signals | 4-bit parallel interface for external flash/RAM expansion at up to 480 Mbps - reduces BOM cost by enabling code/data offload from internal memory. |
| WAKEUP0–59 | Low-power wakeup inputs | 60 GPIO pins capable of generating interrupts from STOP/STANDBY modes - essential for event-driven power management in always-on ECUs. |
Key Features
| Feature | Design Value |
|---|---|
| Triple 12-bit ADC with 24-channel input per module | Simultaneous sampling across three independent ADCs enables synchronized voltage/current/temperature acquisition for multi-phase motor control. |
| FlexIO module with UART/I²C/SPI/I²S/SENT/PWM emulation | Configurable logic blocks replace discrete protocol ICs - reduces component count and board space in legacy interface bridging applications. |
| Enhanced Modular I/O System (eMIOS) with 72 timer channels | Hardware-timed PWM, input capture, and output compare functions eliminate CPU overhead for engine timing, lighting dimming, and solenoid control. |
| Body Control Trigger Unit (BCTU) | Hardware cross-triggering between ADC conversions and eMIOS timers - enables precise closed-loop control without software intervention. |
| Hardware Security Engine (HSE-B) with AES acceleration | Offloads cryptographic operations (AES-128/256, SHA-256) from main CPU - preserves real-time performance while meeting UNECE R155 security requirements. |
Applications
| Body Control Module (BCM) | Vehicle Gateway ECU |
|---|---|
|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern vehicles. IC Role / Device Role / Timing Role: Main application processor executing ASW-compliant CDDs, managing LIN clusters via 16 LPUARTs, and driving PWM outputs via eMIOS. Use Value: Integrated CAN FD, LIN, and FlexIO reduce external transceivers and level shifters; 192 KB TCM ensures sub-10 µs response for critical lock/unlock commands. |
Use Scenario: Aggregation and routing of messages between powertrain, chassis, infotainment, and ADAS domains over multiple CAN FD and Ethernet buses. IC Role / Device Role / Timing Role: Network bridge with hardware-accelerated packet filtering, timestamping (via Ethernet TSN), and firewall logic enforced by XRDC. Use Value: Dual 100 Mbps Ethernet ports and six FlexCAN interfaces enable concurrent domain isolation; QuadSPI allows local storage of routing tables and OTA update images. |
| Chassis Domain Controller | Electric Power Steering (EPS) Support MCU |
|
Use Scenario: Real-time coordination of brake-by-wire, electronic suspension, and steering angle feedback in Zonal E/E architectures. IC Role / Device Role / Timing Role: Safety-monitoring companion to primary controller, running independent watchdogs (SWT), CRC checks, and sensor redundancy validation. Use Value: ASIL-B compliance, ECC on all memories, and dual SWT timers provide fault detection coverage exceeding 90% for ISO 26262 Part 6 Annex D. |
Use Scenario: Secondary control unit handling torque assist calculation, motor phase current sensing, and fault logging in EPS systems. IC Role / Device Role / Timing Role: High-speed ADC sampling (three 12-bit modules) synchronized to eMIOS PWM carriers for field-oriented control (FOC) loop execution. Use Value: 160 MHz M7 core with FPU executes FOC algorithms in < 5 µs; 192 KB TCM stores motor lookup tables and PID coefficients with zero cache miss penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K324EHT1MMMST | Dual-core Arm Cortex-M7 @ 160 MHz, same 4 MB flash/512 KB SRAM, adds second CPU for lockstep or asymmetric processing. | Required where ASIL-D compliance or redundant computation paths are mandated (e.g., brake control). | Select S32K324EHT1MMMST only if dual-core lockstep or split-workload architecture is needed; S32K314EHT1MMMST suffices for ASIL-B single-core use cases. |
| S32K344EHT1MMMST | ASIL-D qualified lockstep dual-core M7 @ 160 MHz, identical memory and peripheral set, enhanced safety mechanisms (e.g., additional self-test coverage). | Targeted at safety-critical applications requiring FMEDA-verified diagnostic coverage >90% (e.g., airbag controllers). | Choose S32K344EHT1MMMST when ISO 26262 ASIL-D certification is contractually required; S32K314EHT1MMMST meets ASIL-B with lower verification burden. |
Compared with S32K324EHT1MMMST and S32K344EHT1MMMST, the S32K314EHT1MMMST delivers optimal cost-performance balance for ASIL-B applications by eliminating redundant cores and associated safety infrastructure while retaining full peripheral feature parity and deterministic real-time latency.
Availability
S32K314EHT1MMMST is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateway ECUs, and chassis domain controllers requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 1 qualification.
Supply support for S32K314EHT1MMMST 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, delivering secure, energy-efficient, and scalable silicon solutions.
The S32K3xx product line was designed specifically for next-generation automotive domain controllers and zonal architectures, emphasizing ASIL-B/D safety compliance, hardware-accelerated security, and real-time determinism in electric and software-defined vehicles.
FAQ
What is the maximum operating frequency of the S32K314EHT1MMMST?
The S32K314EHT1MMMST features an Arm Cortex-M7 core rated for operation up to 160 MHz. This frequency is achievable across the full −40 °C to +125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, as validated in the official NXP datasheet Rev. 14. The S32K314EHT1MMMST uses a dedicated System PLL (SPLL) fed by FXOSC or FIRC to generate this clock, with configurable dividers for peripheral domain scaling.
Does the S32K314EHT1MMMST support CAN FD?
Yes, the S32K314EHT1MMMST integrates six FlexCAN modules, each fully compliant with CAN FD (Controller Area Network Flexible Data-Rate) protocol, supporting data rates up to 5 Mbps and payloads up to 64 bytes. All six channels are independently configurable and support ISO 11898-1:2015, enabling high-bandwidth diagnostics and inter-domain messaging in modern vehicle networks.
What package type is used for the S32K314EHT1MMMST?
The S32K314EHT1MMMST is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed pad (EP) for enhanced thermal performance. This package is RoHS-compliant, AEC-Q100 qualified, and compatible with standard automotive PCB assembly processes including reflow soldering and X-ray inspection.
How much SRAM does the S32K314EHT1MMMST include, and what portion is TCM?
The S32K314EHT1MMMST includes 512 KB of total SRAM, all protected by Error-Correcting Code (ECC). Of this, 192 KB is designated as tightly coupled memory (TCM), split evenly between instruction TCM (ITCM) and data TCM (DTCM). This TCM allocation ensures zero-wait-state access for time-critical code and variables, directly improving control loop determinism in applications like EPS or braking.
Is the S32K314EHT1MMMST qualified for automotive use?
Yes, the S32K314EHT1MMMST is AEC-Q100 Grade 1 qualified (−40 °C to +125 °C), ASIL-B compliant per ISO 26262, and designed for automotive body electronics, gateways, and chassis applications. It includes hardware safety features such as dual SWT timers, ECC on all memories, centralized error detection (CED), and XRDC-based memory protection - all verified in NXP's functional safety documentation.
S32K314EHT1MMMST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 257-LFBGA
- Series:
- S32K3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 160MHz
- Connectivity:
- CANbus, Ethernet, FlexIO, I2C, I3C, LIN, QSPI, SAI, SPI, UART/USART
- Peripherals:
- DMA, I2S, Serial Audio, WDT
- Number of I/O:
- 218
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S32K314EHT1MMMST FAQ
1.How can I place an order for S32K314EHT1MMMST through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K314EHT1MMMST 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 S32K314EHT1MMMST reliable?
The price and inventory of S32K314EHT1MMMST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K314EHT1MMMST is usually 5 days.
3.What payment methods are accepted for S32K314EHT1MMMST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K314EHT1MMMST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K314EHT1MMMST?
S32K314EHT1MMMST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K314EHT1MMMST 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 S32K314EHT1MMMST?
For technical support, including S32K314EHT1MMMST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K314EHT1MMMST requirements.
6.How does Aetrix verify that S32K314EHT1MMMST is sourced from the original manufacturer or authorized distributors?
All S32K314EHT1MMMST 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 S32K314EHT1MMMST meets industry standards.
7.What is the process for return or replacement of S32K314EHT1MMMST?
All S32K314EHT1MMMST units undergo pre-shipment inspection (PSI). If there is an issue with S32K314EHT1MMMST, 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 S32K314EHT1MMMST part is unused and in its original packaging.
Return procedure for S32K314EHT1MMMST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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