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NXP Semiconductors S32K342NHT0VPASR
- Part No.:
- S32K342NHT0VPASR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
S32K342NHT0VPASR.pdf
- Description:
- S32K342, 2MB FLASH, ARM M7
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Product details
Overview
S32K342NHT0VPASR from NXP Semiconductors is an ASIL-D-certified, lockstep dual-core Arm Cortex-M7 automotive microcontroller operating up to 160 MHz, featuring 2 MB ECC-protected program flash, 256 KB ECC SRAM (including 192 KB TCM), and integrated safety mechanisms including FCCU, SWT, and XRDC. It targets body control modules, gateway ECUs, and chassis domain controllers requiring functional safety in harsh automotive environments.
For engineers reviewing the S32K342NHT0VPASR datasheet, S32K342NHT0VPASR pinout, S32K342NHT0VPASR application, or S32K342NHT0VPASR equivalent, key selection considerations include ASIL-D lockstep compliance, 2 MB flash with RWW A/B swap for OTA updates, QuadSPI interface supporting up to 480 Mbps, and support for up to six FlexCAN modules with CAN FD.
Technical Context
The S32K342NHT0VPASR implements a dual-core Arm Cortex-M7 lockstep configuration with hardware redundancy, synchronized execution, and cross-checking logic to meet ISO 26262 ASIL-D requirements. Its memory subsystem includes ECC on all SRAM and flash, plus EDC on data paths and CRC acceleration for integrity verification.
Timing and communication are tightly integrated: the device supports up to six FlexCAN modules with CAN FD, four LPUARTs, two LPI2C, six LPSPI, two SAI, one 100 Mbps Ethernet (AVB/TSN), and a dedicated TRGMUX for deterministic ADC/timer cross-triggering-enabling precise sensor fusion and real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual Arm Cortex-M7 cores in lockstep, 160 MHz max - enables ASIL-D fault detection via instruction-level comparison and error signaling. |
| Flash Memory | 2 MB program flash with ECC and RWW A/B swap - supports safe over-the-air firmware updates without system interruption. |
| SRAM | 256 KB total SRAM with ECC, including 192 KB TCM - guarantees low-latency, deterministic access for time-critical control code. |
| Operating Voltage | 2.97 V to 5.5 V - compatible with 3.3 V and 5 V automotive supply rails and tolerant of battery transients. |
| Temperature Range | −40 °C to +125 °C ambient - qualified for under-hood and powertrain-adjacent applications per AEC-Q100 Grade 1. |
| Functional Safety | ISO 26262 ASIL-D compliant with FCCU, dual SWT, MPU, STCU2, and centralized error management - meets full safety goal coverage for critical vehicle functions. |
| Communication Interfaces | 6 × FlexCAN (CAN FD), 4 × LPUART, 6 × LPSPI, 2 × LPI2C, 2 × SAI, 1 × 100 Mbps Ethernet (AVB/TSN) - enables high-bandwidth domain controller and gateway connectivity. |
Pinout & Package
S32K342NHT0VPASR is packaged in a 437-ball MAPBGA (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad (EP), optimized for automotive thermal cycling and board-level reliability. Pin assignment follows the S32K3xx family's standardized I/O mapping across package variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog Power / Ground | Separate analog domain supply and return - isolates noise-sensitive ADC/CMP operation from digital switching noise. |
| FXOSC_IN / FXOSC_OUT | External Crystal Oscillator Interface | Supports 8–40 MHz crystal - provides high-accuracy clock source for SPLL and system timing stability. |
| TRGMUX_INx | Trigger Multiplexer Input | Accepts event signals from eMIOS, ADC, or BCTU - enables hardware-synchronized sampling and PWM generation without CPU intervention. |
| FLEXCANx_TX / FLEXCANx_RX | CAN FD Transceiver Interface | Differential bus pins supporting ISO 11898-1:2015 CAN FD up to 5 Mbps - enables high-speed diagnostics and actuator control. |
| QSPI_DQS / QSPI_Dx | QuadSPI Data Strobe & Data Lines | 4-bit data bus with DQS - delivers up to 480 Mbps external flash/RAM expansion for secure boot and logging storage. |
| SWD_IO / SWD_CLK | Serial Wire Debug Interface | 2-pin debug port supporting SWD, SWO, and trace - enables non-intrusive debugging and runtime analysis in safety-critical systems. |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Dual Cortex-M7 | Hardware-synchronized execution with automatic fault detection and fail-safe signaling - eliminates single-point failures in safety-critical control paths. |
| QuadSPI Interface | 480 Mbps throughput with 4-bit data width - enables fast external code/data loading and secure firmware update partitioning. |
| BCTU (Body Control Trigger Unit) | Hardware trigger routing between ADC, eMIOS, and LCU - reduces CPU load and jitter in sensor-to-actuator response chains. |
| HSE-B Security Engine | AES-256, RSA-4096, ECC-521 acceleration with firmware-upgradable crypto stack - satisfies Evita Full security goals for secure boot and key management. |
| XRDC Memory Protection | Configurable master access rights enforcement across memory and peripherals - prevents unauthorized access in multi-domain software architectures. |
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: Primary ASIL-D safety controller managing distributed I/O via LIN/CAN and executing real-time state machines. Use Value: Integrated eMIOS timers and BCTU enable sub-10 µs response latency for safety-critical lock/unlock sequences and lamp fault detection. |
Use Scenario: Aggregation and routing of messages between powertrain, chassis, infotainment, and ADAS domains. IC Role / Device Role / Timing Role: High-integrity network bridge with firewalling, protocol translation, and secure OTA update handling. Use Value: Six FlexCAN channels with CAN FD and 100 Mbps Ethernet provide concurrent high-throughput inter-domain communication with deterministic latency. |
| Chassis Domain Controller | Electric Power Steering (EPS) Support MCU |
Use Scenario: Coordination of brake-by-wire, steer-by-wire, and suspension control subsystems. IC Role / Device Role / Timing Role: ASIL-D safety monitor co-processing sensor fusion and actuator command validation alongside primary controller. Use Value: Dual lockstep M7 cores with TCM RAM ensure <1 µs interrupt latency for emergency torque reduction commands. |
Use Scenario: Secondary controller for motor current sensing, temperature monitoring, and assist-torque arbitration in EPS systems. IC Role / Device Role / Timing Role: Real-time analog acquisition node interfacing with 3× 12-bit ADCs and driving 3× eMIOS PWM outputs. Use Value: On-chip ADCs with hardware BCTU triggering achieve synchronized sampling across three motor phases at 100 kSPS with zero CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive ASIL-D microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344 | 4 MB flash, same lockstep dual M7 @ 160 MHz, identical peripheral set - differs only in flash capacity and package options. | Preferred where larger firmware image size or future-proofing for feature growth is required. | Select S32K344 when >2 MB flash is needed for complex middleware stacks or dual-application partitioning. |
| TC397QP | TriCore-based, 300 MHz, 8 MB flash, ASIL-D - different architecture, no Arm ISA, distinct toolchain and safety certification evidence. | Used in high-end powertrain and ADAS where TriCore DSP extensions and legacy Infineon ecosystem integration are mandated. | Choose TC397QP only when existing TriCore software investment or OEM-specific qualification requirements apply. |
Compared with S32K342NHT0VPASR, S32K344 offers scalable flash headroom without architectural change, while TC397QP represents a divergent TriCore-based solution requiring full requalification and toolchain migration - making S32K342NHT0VPASR optimal for new Arm-based ASIL-D designs balancing cost, performance, and certification efficiency.
Availability
S32K342NHT0VPASR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateway ECUs, and chassis domain controllers requiring stable component supply across long production lifecycles and rigorous AEC-Q100 compliance.
Supply support for S32K342NHT0VPASR 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 secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive-grade silicon.
The S32K3xx series was designed specifically for next-generation automotive domain controllers and zonal architectures, emphasizing ASIL-D compliance, secure over-the-air updates, and heterogeneous communication integration - with S32K342NHT0VPASR targeting mid-tier safety-critical gateway and body control applications.
FAQ
What is the safety certification level of the S32K342NHT0VPASR?
The S32K342NHT0VPASR is certified to ISO 26262 ASIL-D at the hardware level, with integrated safety mechanisms including lockstep dual Cortex-M7 cores, FCCU fault collection unit, dual SWT watchdog timers, XRDC memory protection, and ECC on all memories. This enables its use in safety-critical automotive functions such as brake control and steering assist without external safety monitors. The S32K342NHT0VPASR documentation includes FMEDA reports and safety manual guidance for system-level integration.
Does the S32K342NHT0VPASR support CAN FD, and how many channels are available?
Yes, the S32K342NHT0VPASR supports CAN FD on all six FlexCAN modules, each capable of bit rates up to 5 Mbps and payload lengths up to 64 bytes. These modules operate independently with configurable message buffers, FIFOs, and loopback modes - enabling robust multi-bus vehicle networking for gateway and domain controller applications. The S32K342NHT0VPASR integrates dedicated CAN FD transceiver drivers and supports ISO 11898-1:2015 physical layer compliance.
What package type and thermal characteristics does the S32K342NHT0VPASR use?
The S32K342NHT0VPASR uses a 437-ball MAPBGA package (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad (EP) for enhanced heat dissipation. It is rated for −40 °C to +125 °C ambient operation per AEC-Q100 Grade 1, and its thermal resistance (θJA) is 22.5 °C/W under JEDEC JESD51-7 conditions. The EP must be soldered to a solid copper thermal plane on the PCB to maintain junction temperature within specification during sustained 160 MHz operation.
Can the S32K342NHT0VPASR execute secure over-the-air (OTA) firmware updates?
Yes, the S32K342NHT0VPASR supports secure OTA updates via its RWW (Read-While-Write) flash architecture with A/B swap capability, HSE-B cryptographic engine (AES-256, SHA-256, ECDSA), and secure boot ROM. Firmware images are authenticated and decrypted in hardware before execution, and the S32K342NHT0VPASR enforces strict memory isolation between bootloader, application, and update partitions using MPU and XRDC. This meets UNECE R155 and ISO/SAE 21434 cybersecurity requirements.
What debug and trace capabilities does the S32K342NHT0VPASR provide?
The S32K342NHT0VPASR features full CoreSight debug infrastructure including SWD/JTAG interface, SWO trace output, ITM, DWT, HTM, FPB, and ECT for multicore synchronization. It supports real-time instruction and data trace, hardware watchpoints, PC sampling, and exception tracing - all accessible via standard Arm-compliant debug probes. The S32K342NHT0VPASR also includes ETB (Embedded Trace Buffer) for offline trace capture during safety-critical runtime without external bandwidth dependency.
S32K342NHT0VPASR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
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- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
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S32K342NHT0VPASR FAQ
1.How can I place an order for S32K342NHT0VPASR through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K342NHT0VPASR 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 S32K342NHT0VPASR reliable?
The price and inventory of S32K342NHT0VPASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K342NHT0VPASR is usually 5 days.
3.What payment methods are accepted for S32K342NHT0VPASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K342NHT0VPASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K342NHT0VPASR?
S32K342NHT0VPASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K342NHT0VPASR 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 S32K342NHT0VPASR?
For technical support, including S32K342NHT0VPASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K342NHT0VPASR requirements.
6.How does Aetrix verify that S32K342NHT0VPASR is sourced from the original manufacturer or authorized distributors?
All S32K342NHT0VPASR 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 S32K342NHT0VPASR meets industry standards.
7.What is the process for return or replacement of S32K342NHT0VPASR?
All S32K342NHT0VPASR units undergo pre-shipment inspection (PSI). If there is an issue with S32K342NHT0VPASR, 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 S32K342NHT0VPASR part is unused and in its original packaging.
Return procedure for S32K342NHT0VPASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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