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NXP Semiconductors S32K342NHT0VPBST
- Part No.:
- S32K342NHT0VPBST
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 172-QFP
- Datasheet:
-
S32K342NHT0VPBST.pdf
- Description:
- S32K342, 2MB FLASH, 256KB RAM
- Quantity:
- Payment:
- Shipping:
Inventory:4,145
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Product details
Overview
S32K342NHT0VPBST from NXP Semiconductors is an ASIL-D-certified, lockstep dual-core Arm Cortex-M7 microcontroller for automotive safety-critical applications, operating at up to 160 MHz, featuring 2 MB ECC-protected program flash, 256 KB ECC SRAM (including 192 KB TCM), and integrated Ethernet (100 Mbps AVB/TSN), QuadSPI, and six FlexCAN modules with CAN FD support.
For engineers reviewing the S32K342NHT0VPBST datasheet, S32K342NHT0VPBST pinout, S32K342NHT0VPBST application, or S32K342NHT0VPBST equivalent, key selection considerations include ASIL-D functional safety compliance, lockstep core redundancy, 160 MHz real-time performance with zero-wait TCM, QuadSPI interface for external memory expansion, and automotive-grade temperature range (-40 °C to 125 °C) across all power modes.
Technical Context
The S32K342NHT0VPBST implements two identical Arm Cortex-M7 cores in lockstep configuration with hardware comparison logic, enabling continuous fault detection per ISO 26262 ASIL-D requirements. It integrates a 64-bit crossbar switch fabric, centralized error management (FCCU, EIM/ERM), and redundant clock/voltage monitoring.
Its safety architecture includes ECC on all memories (flash, DFlash, SRAM), Error Detection Code (EDC) on data paths, CRC module, dual SWT timers, and XRDC-based access control for master domains. The device supports RWW (Read-While-Write) flash and A/B swap for robust OTA updates.
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 hardware comparison and synchronized execution. |
| Memory | 2 MB program flash with ECC + 128 KB DFlash with ECC + 256 KB SRAM with ECC (192 KB TCM) - ensures data integrity and deterministic low-latency CPU access. |
| Operating Voltage | 2.97 V to 5.5 V - supports direct connection to automotive battery rails without external regulators in many configurations. |
| Temperature Range | -40 °C to 125 °C ambient - qualified for under-hood and transmission control unit (TCU) environments. |
| Networking | 6 × FlexCAN (CAN FD capable), 1 × 100 Mbps Ethernet (AVB/TSN), 16 × LPUART - meets modern vehicle domain controller communication demands. |
| Analog Peripherals | 3 × 12-bit ADC (24-channel each), 3 × analog comparators with internal 8-bit DAC, BCTU for cross-triggering - supports motor control and sensor fusion. |
| Security & Safety | HSE-B hardware security engine (AES/RSA/ECC acceleration), XRDC memory protection, virtualization wrapper (VIRT_WRAPPER), ASIL-D certified per ISO 26262 - delivers end-to-end trust and isolation. |
Pinout & Package
Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch, exposed pad). Pin count and I/O mapping align with S32K3xx family common pinout; full pin assignment requires reference to NXP's S32K342-specific package drawing (document S32K342PMBGA437).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog power supply / ground | Independent 3.3 V analog domain with dedicated filtering - critical for ADC/CMP accuracy and noise immunity. |
| ENET_RXD0–3 / ENET_TXD0–3 | Ethernet physical layer interface | Direct RMII/MII-capable signals supporting 100 Mbps AVB/TSN - enables time-synchronized networked control without external PHY in simplified designs. |
| CAN0_TX / CAN0_RX – CAN5_TX / CAN5_RX | FlexCAN differential bus interfaces | 6 independent CAN FD transceiver channels - supports multi-domain communication (powertrain, chassis, body) with >5 Mbps data phase. |
| QSPI_DATA0–3 / QSPI_SCLK / QSPI_SS_B | QuadSPI external memory interface | 4-bit data bus, up to 480 Mbps - allows boot-from-external-flash and seamless code/data expansion beyond on-chip memory limits. |
| JTAG_TCK / JTAG_TMS / JTAG_TDI / JTAG_TDO / SWDIO / SWCLK | Debug interface pins | Supports Serial Wire Debug (SWD) and JTAG - enables secure, production-ready debugging and flash programming with minimal 2-pin footprint. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-D Lockstep Architecture | Hardware-enforced dual-core execution with real-time comparison and fail-safe signaling - eliminates single-point faults in safety-critical control loops. |
| Integrated Ethernet with AVB/TSN | 100 Mbps MAC with time-sensitive networking support - enables deterministic communication for ADAS sensor fusion and gateway routing without external switches. |
| OTA-Ready Flash System | RWW capability and A/B swap partitioning - permits safe firmware updates during runtime with zero downtime and rollback recovery. |
| Flexible I/O Emulation (FlexIO) | 32-channel programmable serial interface supporting UART, SPI, I2C, I2S, SENT, PWM - replaces discrete protocol ICs and reduces BOM cost. |
| On-Chip Motor Control Subsystem | BCTU + eMIOS + LCU + ADC synchronization - offloads timing-critical PWM generation and current sensing from CPU, improving real-time responsiveness. |
Applications
| Electric Power Steering (EPS) | Brake-by-Wire Control Unit |
|---|---|
Use Scenario: Real-time torque assist calculation and motor phase control under dynamic load and temperature variation. IC Role / Device Role / Timing Role: Primary ASIL-D safety controller executing motor FOC algorithms, position feedback processing, and fault-tolerant CAN FD communication. Use Value: Lockstep M7 cores ensure <1 µs fault detection latency; 192 KB TCM enables sub-100 ns interrupt response for field-oriented control loops. |
Use Scenario: Redundant hydraulic pressure modulation and wheel-speed-based ABS/EBD actuation in distributed brake systems. IC Role / Device Role / Timing Role: Dual-domain safety processor managing CAN FD command arbitration, sensor fusion (wheel speed, pedal travel), and PWM valve drive. Use Value: Integrated 6 FlexCAN channels allow isolated communication with master ECU, slave calipers, and diagnostic tools; ECC RAM prevents silent data corruption in pressure lookup tables. |
| Vehicle Domain Controller (VDC) | Advanced Gateway Module |
Use Scenario: Consolidated control of HVAC, lighting, and chassis functions with over-the-air update capability and cybersecurity enforcement. IC Role / Device Role / Timing Role: Central ASIL-D host MCU running AUTOSAR Classic, managing inter-domain messaging via Ethernet and CAN FD. Use Value: 100 Mbps Ethernet with TSN provides time-synchronized scheduling for HVAC actuator coordination; HSE-B accelerates TLS 1.3 for secure OTA signing. |
Use Scenario: Protocol translation between high-speed Ethernet backbone and legacy CAN/LIN subnetworks in zonal architectures. IC Role / Device Role / Timing Role: Secure gateway node performing firewall filtering, message routing, and intrusion detection using hardware-accelerated crypto. Use Value: XRDC enforces strict memory access policies between Ethernet, CAN, and LIN drivers; FlexIO emulates legacy LIN transceivers without external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344 | 4 MB flash, same lockstep dual-core M7 @ 160 MHz, identical peripheral set and package compatibility | Higher memory headroom for complex AUTOSAR stacks or dual-application partitioning (e.g., safety + infotainment proxy) | Select S32K344 when >2 MB flash is required for future software scalability or certified ASIL-D middleware layers. |
| S32K324 | Dual independent M7 cores (non-lockstep), ASIL-B rated, 4 MB flash, same peripherals except no HSE-B crypto acceleration | Targeted at non-safety-critical domain controllers where performance > safety certification (e.g., body electronics, telematics) | Choose S32K324 for cost-optimized, high-throughput applications lacking ASIL-D requirements but needing dual-core parallelism. |
Compared with S32K342NHT0VPBST, S32K344 offers double flash capacity while maintaining identical safety architecture and pin compatibility, whereas S32K324 trades ASIL-D certification and hardware crypto for higher general-purpose throughput-making it suitable for adjacent but non-safety domains.
Availability
S32K342NHT0VPBST is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire systems, vehicle domain controllers, and advanced gateways requiring stable component supply, long-term automotive lifecycle support, and ASIL-D compliance.
Supply support for S32K342NHT0VPBST 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 automotive-grade MCUs.
The S32K3xx product line was designed specifically for next-generation automotive domain controllers and safety-critical ECUs, extending the S32K1xx portfolio with Arm Cortex-M7 lockstep cores, ASIL-D certification, and integrated high-speed networking.
FAQ
What is the maximum operating frequency of the S32K342NHT0VPBST?
The S32K342NHT0VPBST operates at a maximum CPU frequency of 160 MHz. This applies to both lockstep Arm Cortex-M7 cores, which execute identically and are continuously compared for fault detection. The frequency is sustained 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 S32K3xx datasheet Rev. 14.
Does the S32K342NHT0VPBST support CAN FD, and how many channels are available?
Yes, the S32K342NHT0VPBST supports CAN FD on all six integrated FlexCAN modules. Each channel is independently configurable for classic CAN or CAN FD operation with bit rates up to 5 Mbps in the data phase. This capability is confirmed in the S32K3xx datasheet section "Communications Interfaces" and applies specifically to the S32K342 variant.
What package type is used for the S32K342NHT0VPBST, and is it pin-compatible with other S32K3xx devices?
The S32K342NHT0VPBST uses the MAPBGA437 package (17 mm × 17 mm, 0.8 mm pitch, exposed thermal pad). It shares the S32K3xx family's common pinout architecture, enabling migration across variants like S32K341, S32K344, and S32K324 within the same package option-subject to peripheral enablement and memory configuration differences.
Is the S32K342NHT0VPBST certified to ASIL-D, and what safety mechanisms does it implement?
Yes, the S32K342NHT0VPBST is ISO 26262 ASIL-D certified. It implements lockstep dual Cortex-M7 cores with hardware comparison, ECC on all memories (flash, DFlash, SRAM), centralized error management (FCCU/EIM), dual SWT timers, XRDC-based memory protection, and voltage/clock monitoring - all documented in the S32K3xx Functional Safety Manual.
Does the S32K342NHT0VPBST include hardware cryptographic acceleration, and which algorithms are supported?
Yes, the S32K342NHT0VPBST includes the Hardware Security Engine (HSE-B), which accelerates AES-128/256, RSA up to 4096-bit, and ECC up to 521-bit operations. It also supports TRNG/PRNG, secure boot, and key provisioning - features explicitly listed for S32K342 in the S32K3xx datasheet Rev. 14 security chapter.
S32K342NHT0VPBST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 172-QFP
- Series:
- S32K3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 160MHz
- Connectivity:
- CANbus, FlexIO, I2C, I3C, LINbus, SAI, SENT, SPI, UART/USART
- Peripherals:
- DMA, I2S, WDT
- Number of I/O:
- 143
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 128K x 8
- RAM Size:
- 256K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.97V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S32K342NHT0VPBST FAQ
1.How can I place an order for S32K342NHT0VPBST through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K342NHT0VPBST 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 S32K342NHT0VPBST reliable?
The price and inventory of S32K342NHT0VPBST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K342NHT0VPBST is usually 5 days.
3.What payment methods are accepted for S32K342NHT0VPBST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K342NHT0VPBST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K342NHT0VPBST?
S32K342NHT0VPBST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K342NHT0VPBST 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 S32K342NHT0VPBST?
For technical support, including S32K342NHT0VPBST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K342NHT0VPBST requirements.
6.How does Aetrix verify that S32K342NHT0VPBST is sourced from the original manufacturer or authorized distributors?
All S32K342NHT0VPBST 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 S32K342NHT0VPBST meets industry standards.
7.What is the process for return or replacement of S32K342NHT0VPBST?
All S32K342NHT0VPBST units undergo pre-shipment inspection (PSI). If there is an issue with S32K342NHT0VPBST, 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 S32K342NHT0VPBST part is unused and in its original packaging.
Return procedure for S32K342NHT0VPBST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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