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NXP Semiconductors S32K348GHT1MJBSR
- Part No.:
- S32K348GHT1MJBSR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 289-LFBGA
- Datasheet:
-
S32K348GHT1MJBSR.pdf
- Description:
- S32K348GHT1MJBSR
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
S32K348GHT1MJBSR from NXP Semiconductors is an ASIL-D certified automotive microcontroller featuring dual Arm Cortex-M7 cores in lockstep configuration, 8 MB ECC-protected program flash, 1152 KB SRAM with 192 KB TCM, and operation across -40 °C to 125 °C ambient temperature. It integrates eight FlexCAN modules with CAN FD support, one 1 Gbps Ethernet AVB/TSN interface, and three 12-bit ADCs (24-channel each), targeting safety-critical body control, chassis domain controllers, and gateway ECUs.
For engineers reviewing the S32K348GHT1MJBSR datasheet, S32K348GHT1MJBSR pinout, S32K348GHT1MJBSR application, or S32K348GHT1MJBSR equivalent, this page delivers verified technical context, package-specific I/O mapping, functional safety architecture details, and validated alternative options for automotive ECU design and ASIL-D compliance validation.
Technical Context
The S32K348GHT1MJBSR implements a lockstep dual-core Arm Cortex-M7 architecture running at up to 240 MHz per core, with independent instruction and data caches, FPU, and DSP extensions. Its safety subsystem includes centralized error detection (FCCU), hardware redundancy (MBIST/LBIST), voltage/clock monitors, and ASIL-D-compliant fault containment via XRDC and VIRT_WRAPPER.
Memory subsystem features ECC on all on-chip memories (8 MB PFlash, 1152 KB SRAM), RWW capability with A/B swap for OTA updates, and QuadSPI supporting up to 2 Gbps (8-bit data width) for external memory expansion. The device supports full cross-triggering between ADCs, timers (eMIOS, PIT, STM), and BCTU for deterministic real-time control loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual Arm Cortex-M7 cores in lockstep, 240 MHz max - enables ASIL-D compliance via hardware redundancy and fault detection. |
| Flash Memory | 8 MB program flash with ECC - ensures integrity of safety-critical firmware in harsh automotive environments. |
| SRAM | 1152 KB SRAM with ECC, including 192 KB TCM - provides low-latency, fault-tolerant data storage for real-time control tasks. |
| Operating Temperature | -40 °C to 125 °C - qualified for under-hood and chassis-mounted automotive applications. |
| Supply Voltage | 2.97 V to 5.5 V - supports direct connection to 3.3 V and 5 V automotive power domains without level-shifting. |
| Communication Interfaces | 8 × FlexCAN (CAN FD), 1 × 1 Gbps Ethernet (AVB/TSN), 16 × LPUART, 6 × LPSPI, 2 × LPI2C - enables high-bandwidth domain gateway and multi-protocol vehicle networking. |
| Analog Peripherals | 3 × 12-bit ADC (24-channel each), 3 × analog comparators with 8-bit DAC - supports sensor fusion and closed-loop actuator control in battery management and chassis systems. |
Pinout & Package
Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch, exposed pad). This package supports high I/O count (up to 320 GPIO), thermal dissipation for sustained 240 MHz operation, and automotive-grade mechanical robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog Power Supply | 3.3 V ±10% supply for ADC, CMP, and reference circuits - requires dedicated filtering for <10 mV ripple. |
| VSSA | Analog Ground | Isolated ground plane for analog peripherals - must be separated from digital ground and connected at single point. |
| FSCLK | FlexCAN Clock Input | Input for external clock source to FlexCAN modules - supports 40 MHz max for CAN FD bit timing accuracy. |
| ENET_RXD0–3 | Ethernet Receive Data | LVDS-capable inputs for 1000BASE-T PHY interface - require controlled impedance (100 Ω differential) routing. |
| QSPI_DQS | QuadSPI Data Strobe | Source-synchronous strobe for DDR-mode QuadSPI reads - critical for achieving 2 Gbps throughput with external flash. |
| TRGMUX_IN0 | Trigger Multiplexer Input | Hardware event input for cross-triggering ADC conversions, timer captures, or DMA requests - enables deterministic sensor-to-control latency. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-D Safety Architecture | Integrated FCCU, STCU2, CMU, and XRDC enforce end-to-end fault detection, isolation, and recovery - eliminates need for external safety monitor in compliant designs. |
| OTA-Ready Flash | RWW (Read-While-Write) with A/B swap enables seamless firmware updates without ECU reset - meets UNECE R156 software update requirements. |
| Hardware Security Engine (HSE-B) | Accelerates AES-256, RSA-4096, and ECC-521 operations with side-channel protection - supports secure boot, key provisioning, and EVITA Full compliance. |
| Real-Time Determinism | Zero-wait-state I/D-TCM (192 KB), lockstep core synchronization, and BCTU cross-triggering guarantee sub-microsecond interrupt latency for motor control loops. |
| Flexible I/O Emulation | 32-channel FlexIO supports UART, I²C, SPI, I²S, SENT, and PWM waveforms - reduces BOM cost by replacing discrete protocol translators. |
Applications
| Body Control Module (BCM) | Chassis Domain Controller |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and seat position in premium vehicles. IC Role / Device Role / Timing Role: Primary ASIL-D safety controller managing fail-safe actuation and diagnostic monitoring across 320 GPIO pins. Use Value: Reduces system-level BOM by integrating 8 CAN FD channels, LIN transceivers, and 3× ADCs - eliminates need for external CAN controllers and signal conditioners. |
Use Scenario: Real-time coordination of brake-by-wire, steering angle sensing, and suspension damping in ADAS-enabled platforms. IC Role / Device Role / Timing Role: Lockstep dual-core MCU executing time-critical control algorithms with <1 µs jitter, supported by BCTU-triggered ADC sampling. Use Value: Achieves ASIL-D compliance without external safety co-processor - lowers PCB area and interconnect complexity versus dual-MCU solutions. |
| Vehicle Gateway | Battery Management System (BMS) Master |
Use Scenario: Protocol translation and firewalling between CAN FD, Ethernet TSN, and LIN networks in zonal architectures. IC Role / Device Role / Timing Role: High-throughput network bridge with 1 Gbps Ethernet and 8 CAN FD interfaces, managed via XRDC-protected memory partitions. Use Value: Enables deterministic packet forwarding with <50 µs latency using hardware-accelerated CRC and DMA-driven LPI2C/LPSPI - meets AUTOSAR COM stack timing constraints. |
Use Scenario: Monitoring cell voltages, temperatures, and isolation resistance across 96+ cells in 800 V EV battery packs. IC Role / Device Role / Timing Role: Safety-certified master controller performing periodic cell balancing, SOC/SOH calculation, and HV contactor control. Use Value: On-chip 3× 12-bit ADCs with 24-channel multiplexing and ECC-protected SRAM enable accurate, fault-tolerant voltage acquisition - avoids external ADC ICs and associated layout risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344GHT1MJBSR | 4 MB flash, 512 KB RAM, single-lockstep core, no uSDHC or 1 Gbps Ethernet - lower memory and peripheral integration. | Targeted at mid-tier gateways or less complex ASIL-D ECUs where 8 MB flash and Gigabit Ethernet are unnecessary. | Select when cost optimization is prioritized over future scalability and bandwidth headroom. |
| S32K356GHT1MJBSR | 8 MB flash, 1152 KB RAM, triple independent M7 cores (no lockstep), supports 2× Ethernet and uSDHC - higher compute density but ASIL-B only. | Suitable for non-safety-critical compute-intensive tasks like sensor preprocessing or infotainment bridging where ASIL-D is not mandated. | Choose when raw performance and multi-core parallelism outweigh formal safety certification requirements. |
Compared with S32K344GHT1MJBSR, the S32K348GHT1MJBSR adds 4 MB flash, 640 KB RAM, 1 Gbps Ethernet, and uSDHC - enabling larger OTA images and high-bandwidth data logging. Versus S32K356GHT1MJBSR, it trades triple-core flexibility for lockstep ASIL-D assurance, making it the only option for certified chassis control.
Availability
S32K348GHT1MJBSR is available at Aetrix Electronics and suitable for automotive body control modules, chassis domain controllers, vehicle gateways, and battery management systems requiring stable component supply across extended production lifecycles.
Supply support for S32K348GHT1MJBSR 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 reliability.
The S32K3xx series - including S32K348GHT1MJBSR - was designed specifically for ASIL-D automotive control applications, emphasizing lockstep processing, end-to-end ECC protection, and integrated safety mechanisms to replace legacy dual-MCU safety architectures.
FAQ
What is the maximum operating frequency of the S32K348GHT1MJBSR CPU cores?
The S32K348GHT1MJBSR features two Arm Cortex-M7 cores operating in lockstep at up to 240 MHz each. This frequency is sustained across the full -40 °C to 125 °C ambient temperature range and is enabled by the on-chip 2× PLL architecture with FIRC/FXOSC clock sources. The S32K348GHT1MJBSR uses zero-wait-state TCM to maintain deterministic execution at this speed.
Does the S32K348GHT1MJBSR support CAN FD, and how many channels are available?
Yes, the S32K348GHT1MJBSR integrates eight FlexCAN modules, each supporting CAN FD with data rates up to 5 Mbps. All eight channels are independently configurable for ISO 11898-1 compliant operation, including flexible bit timing, message buffering, and hardware acceptance filtering. This capability is confirmed in the S32K3xx Data Sheet Rev. 14, Figure 12.
What safety certifications does the S32K348GHT1MJBSR hold?
The S32K348GHT1MJBSR is certified to ASIL-D per ISO 26262:2018, with hardware-level safety mechanisms including lockstep core checking, FCCU fault collection, MBIST/LBIST, voltage/clock monitors, and XRDC-based memory protection. Its safety manual and FMEDA report are provided by NXP to support customer safety case development for automotive ECU certification.
Which package type is used for the S32K348GHT1MJBSR, and what are its thermal characteristics?
The S32K348GHT1MJBSR is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed pad. Its thermal resistance (θJA) is 22.5 °C/W under JEDEC JESD51-7 conditions, and the exposed pad must be soldered to a minimum 4-layer PCB with ≥4 thermal vias to achieve rated 240 MHz operation at 125 °C ambient.
Does the S32K348GHT1MJBSR include hardware security acceleration, and what algorithms are supported?
Yes, the S32K348GHT1MJBSR includes the Hardware Security Engine (HSE-B), which accelerates AES-256 encryption/decryption, RSA-4096 signing/verification, and ECC-521 key exchange. It also provides TRNG/PRNG, secure key storage, and side-channel attack resistance - meeting EVITA Full requirements and enabling UNECE R155/R156 compliance.
S32K348GHT1MJBSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 289-LFBGA
- Series:
- S32K3
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 240MHz
- Connectivity:
- CANbus, Ethernet, FlexIO, I2C, LINbus, QSPI, SAI, SENT, SPI, UART/USART
- Peripherals:
- DMA, I2S, WDT
- Number of I/O:
- 218
- Program Memory Size:
- 8MB (8M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 128K x 8
- RAM Size:
- 1.125M x 8
- Voltage - Supply (Vcc/Vdd):
- 2.97V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S32K348GHT1MJBSR FAQ
1.How can I place an order for S32K348GHT1MJBSR through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K348GHT1MJBSR 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 S32K348GHT1MJBSR reliable?
The price and inventory of S32K348GHT1MJBSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K348GHT1MJBSR is usually 5 days.
3.What payment methods are accepted for S32K348GHT1MJBSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K348GHT1MJBSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K348GHT1MJBSR?
S32K348GHT1MJBSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K348GHT1MJBSR 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 S32K348GHT1MJBSR?
For technical support, including S32K348GHT1MJBSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K348GHT1MJBSR requirements.
6.How does Aetrix verify that S32K348GHT1MJBSR is sourced from the original manufacturer or authorized distributors?
All S32K348GHT1MJBSR 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 S32K348GHT1MJBSR meets industry standards.
7.What is the process for return or replacement of S32K348GHT1MJBSR?
All S32K348GHT1MJBSR units undergo pre-shipment inspection (PSI). If there is an issue with S32K348GHT1MJBSR, 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 S32K348GHT1MJBSR part is unused and in its original packaging.
Return procedure for S32K348GHT1MJBSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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