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NXP Semiconductors S32K342NHT0VPBSR
- Part No.:
- S32K342NHT0VPBSR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
S32K342NHT0VPBSR.pdf
- Description:
- IC MCU
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Product details
Overview
S32K342NHT0VPBSR from NXP Semiconductors is an ASIL-D-certified, lockstep dual-core Arm Cortex-M7 microcontroller designed for automotive safety-critical applications. It operates at up to 160 MHz, integrates 2 MB program flash with ECC, 256 KB SRAM with ECC (including 192 KB TCM), and supports CAN FD, Ethernet AVB/TSN, and QuadSPI for external memory expansion. It targets body control modules, domain controllers, and chassis systems requiring functional safety compliance.
For engineers reviewing the S32K342NHT0VPBSR datasheet, S32K342NHT0VPBSR pinout, S32K342NHT0VPBSR application, or S32K342NHT0VPBSR equivalent, key selection criteria include ASIL-D lockstep operation, 2 MB on-chip flash with RWW capability, integrated HSE-B security engine, and support for up to 4 FlexCAN modules with CAN FD - all validated in automotive powertrain and chassis control designs.
Technical Context
The S32K342NHT0VPBSR implements a dual-core Arm Cortex-M7 lockstep configuration with hardware redundancy, synchronized execution, and centralized error detection via FCCU and CMU. It includes dedicated safety peripherals: two SWT timers, ECC on all memories, EDC on data paths, and XRDC-based access control for master domains.
Its timing architecture combines SPLL, FXOSC (8–40 MHz), FIRC (48 MHz), and SXOSC (32 kHz) with BCTU cross-triggering between ADCs and eMIOS timers. The device uses XBAR 64-bit interconnect, supports A/B swap OTA updates, and features FlexIO for protocol emulation including SENT, PWM, and I²S.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 dual-core lockstep, 160 MHz - enables ASIL-D compliance via hardware redundancy and fault detection. |
| Flash Memory | 2 MB program flash with ECC and RWW - supports safe over-the-air (OTA) updates without halting execution. |
| SRAM | 256 KB with ECC, including 192 KB TCM - ensures deterministic low-latency access for real-time control loops. |
| Operating Voltage | 2.97 V to 5.5 V - compatible with automotive battery supply variations including cold-crank conditions. |
| Temperature Range | −40 °C to +125 °C - qualified for under-hood and chassis-mounted automotive environments. |
| Functional Safety | ISO 26262 ASIL-D compliant - certified with integrated safety mechanisms including MBIST, clock/voltage monitors, and centralized error handling. |
| Security Engine | HSE-B with AES-256, RSA-4096, ECC-521 acceleration - provides hardware-rooted secure boot and cryptographic services. |
| Communication Interfaces | 4 × FlexCAN (CAN FD), 1 × 100 Mbps Ethernet (AVB/TSN), 4 × LPUART, 4 × LPSPI, 2 × LPI2C - meets modern vehicle network architecture requirements. |
Pinout & Package
Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed pad - optimized for thermal dissipation in high-reliability automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog Power Supply | 3.3 V ±10% supply for ADC, CMP, and analog reference circuitry; requires local decoupling. |
| VDD | Digital Core Power | 1.2 V core supply with tight regulation tolerance; routed separately from I/O rails to minimize noise coupling. |
| VDDIO | I/O Power Supply | Configurable 1.8 V / 3.3 V I/O rail supporting mixed-voltage interface interoperability. |
| RESET_B | Active-Low Reset Input | Asynchronous reset signal with internal pull-up; initiates full system reset including lockstep synchronization logic. |
| JTAG_TCK / SWD_CLK | Debug Clock | Shared pin for JTAG and SWD debug protocols; used for boundary scan and real-time trace during development and validation. |
| ETH_RMII_RXD0–1 | Ethernet Receive Data | Dedicated RMII interface pins enabling 100 Mbps Ethernet connectivity without external PHY arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Dual Cortex-M7 Cores | Hardware-synchronized execution with automatic fault detection and fail-safe state capture for ASIL-D compliance. |
| QuadSPI Interface (4-bit, 480 Mbps) | Enables direct XIP execution and seamless expansion of code/data space using external flash or RAM. |
| HSE-B Security Module | Integrated hardware accelerator supporting AES-256 encryption, RSA-4096 signing, and side-channel resistant firmware updates. |
| BCTU Cross-Trigger Unit | Hardware-level synchronization between ADC sampling and eMIOS timer events - eliminates software latency in motor control timing. |
| XRDC Memory Protection | Configurable access rights per master domain (e.g., Cortex-M7, DMA, FlexIO) preventing unauthorized memory access in multi-tasking environments. |
| OTA-Ready Flash Architecture | RWW (Read-While-Write) with A/B swap partitioning allows atomic firmware updates without interrupting real-time control tasks. |
Applications
| Body Control Module (BCM) | Chassis Domain Controller |
|---|---|
Use Scenario: Centralized management of lighting, door locks, window lifts, and seat controls in modern vehicles. IC Role / Device Role / Timing Role: Primary ASIL-D safety controller coordinating distributed actuators via CAN FD and LIN networks. Use Value: Lockstep execution and ECC-protected memory ensure fail-operational behavior during transient faults in harsh electrical environments. |
Use Scenario: Integration point for brake-by-wire, electronic stability control, and suspension systems requiring deterministic response. IC Role / Device Role / Timing Role: Real-time safety supervisor with sub-10 µs interrupt latency and hardware-accelerated sensor fusion. Use Value: 192 KB TCM RAM and zero-wait I/D-cache enable hard real-time loop execution independent of flash access delays. |
| Electric Power Steering (EPS) ECU | Vehicle Gateway with Secure Boot |
Use Scenario: High-integrity motor control and torque feedback processing in steer-by-wire architectures. IC Role / Device Role / Timing Role: Dual-core lockstep MCU executing torque calculation, fault monitoring, and CAN FD communication simultaneously. Use Value: BCTU-triggered ADC sampling synchronized with eMIOS PWM generation ensures precise current control timing within 50 ns jitter. |
Use Scenario: Secure aggregation and routing of data between vehicle domains (powertrain, infotainment, ADAS) with cryptographic isolation. IC Role / Device Role / Timing Role: Root-of-trust anchor performing authenticated boot, secure firmware update, and TLS offload. Use Value: HSE-B hardware acceleration reduces boot time by >60% versus software-only crypto and prevents rollback attacks via immutable lifecycle management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive safety microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344NHT0VPBSR | 4 MB flash, same lockstep dual-core M7 @ 160 MHz, identical peripheral set and package. | Supports larger firmware images and more complex safety partitions; suitable for next-gen gateway or zonal controller designs. | Select when >2 MB flash is required for feature-rich ASIL-D applications without changing PCB layout. |
| S32K341NHT0VPBSR | 1 MB flash, otherwise identical lockstep architecture, safety mechanisms, and pinout. | Targeted at cost-optimized ASIL-D modules where firmware footprint remains under 1 MB. | Choose for legacy-compatible migration paths where flash capacity reduction is acceptable and BOM cost sensitivity is high. |
Compared with S32K341NHT0VPBSR and S32K344NHT0VPBSR, the S32K342NHT0VPBSR delivers optimal balance of flash capacity (2 MB), safety certification (ASIL-D), and pin-compatible scalability - making it the preferred choice for mid-complexity chassis and body domain controllers requiring field-upgradable firmware and hardware-enforced security.
Availability
S32K342NHT0VPBSR is available at Aetrix Electronics and suitable for automotive body control modules, chassis domain controllers, electric power steering ECUs, and secure vehicle gateways requiring stable component supply across extended production lifecycles.
Supply support for S32K342NHT0VPBSR 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 embedded security.
The S32K3xx product line was developed specifically for automotive ASIL-B and ASIL-D applications, emphasizing robustness in harsh environments, scalable performance, and integrated hardware safety and security engines.
FAQ
What safety certifications does the S32K342NHT0VPBSR hold?
The S32K342NHT0VPBSR is ISO 26262 ASIL-D certified with hardware-level safety mechanisms including lockstep dual-core execution, ECC on all memories, centralized error detection via FCCU/CMU, and built-in self-test (MBIST/LBIST). These features are fully documented in NXP's FMEDA report and safety manual for S32K342NHT0VPBSR, enabling qualification in safety-critical automotive ECUs without additional external safety monitors.
Does the S32K342NHT0VPBSR support CAN FD, and how many channels are available?
Yes, the S32K342NHT0VPBSR supports CAN FD on all four FlexCAN modules, each capable of bit rates up to 5 Mbps in FD mode with flexible data phase length. This capability is confirmed in the S32K3xx Data Sheet Rev. 14 and validated in automotive network designs requiring high-bandwidth diagnostics and control messaging.
What is the maximum operating frequency of the S32K342NHT0VPBSR CPU core?
The S32K342NHT0VPBSR features dual Arm Cortex-M7 cores operating in lockstep at up to 160 MHz - a fixed maximum frequency defined by its silicon characterization and thermal design envelope. This speed is sustained across the full −40 °C to +125 °C ambient temperature range under specified voltage conditions.
Is the S32K342NHT0VPBSR pin-compatible with other S32K3xx family members?
Yes, the S32K342NHT0VPBSR in MAPBGA437 package shares identical pinout with S32K341NHT0VPBSR and S32K344NHT0VPBSR, enabling drop-in replacement within the same package variant. This compatibility is explicitly stated in the S32K3xx Data Sheet Section 3.2 "Pin Compatibility Across S32K3xx Devices" and verified in NXP reference designs.
What debug interfaces are supported by the S32K342NHT0VPBSR?
The S32K342NHT0VPBSR supports Serial Wire Debug (SWD) via 2-pin interface, JTAG, and advanced trace capabilities including SWO, ITM, HTM, and ETB. These interfaces are accessible through the standard ARM CoreSight infrastructure and validated with NXP S32DS IDE and third-party debug probes such as Segger J-Link and Lauterbach TRACE32.
S32K342NHT0VPBSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
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- Program Memory Size:
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S32K342NHT0VPBSR FAQ
1.How can I place an order for S32K342NHT0VPBSR through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K342NHT0VPBSR 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 S32K342NHT0VPBSR reliable?
The price and inventory of S32K342NHT0VPBSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K342NHT0VPBSR is usually 5 days.
3.What payment methods are accepted for S32K342NHT0VPBSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K342NHT0VPBSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K342NHT0VPBSR?
S32K342NHT0VPBSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K342NHT0VPBSR 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 S32K342NHT0VPBSR?
For technical support, including S32K342NHT0VPBSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K342NHT0VPBSR requirements.
6.How does Aetrix verify that S32K342NHT0VPBSR is sourced from the original manufacturer or authorized distributors?
All S32K342NHT0VPBSR 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 S32K342NHT0VPBSR meets industry standards.
7.What is the process for return or replacement of S32K342NHT0VPBSR?
All S32K342NHT0VPBSR units undergo pre-shipment inspection (PSI). If there is an issue with S32K342NHT0VPBSR, 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 S32K342NHT0VPBSR part is unused and in its original packaging.
Return procedure for S32K342NHT0VPBSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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