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NXP Semiconductors S32K324EHT1MPBIT
- Part No.:
- S32K324EHT1MPBIT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 172-QFP
- Datasheet:
-
S32K324EHT1MPBIT.pdf
- Description:
- S32K324EHT1MPBIT
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
S32K324EHT1MPBIT from NXP Semiconductors is an ASIL-B dual-core Arm Cortex-M7 automotive MCU operating up to 160 MHz, featuring 4 MB ECC-protected program flash, 512 KB SRAM with 192 KB TCM, and integrated QuadSPI interface supporting up to 480 Mbps for external memory expansion. It delivers real-time control in body electronics and domain controllers requiring CAN FD, Ethernet AVB/TSN, and functional safety compliance.
For engineers reviewing the S32K324EHT1MPBIT datasheet, S32K324EHT1MPBIT pinout, S32K324EHT1MPBIT application, or S32K324EHT1MPBIT equivalent, key selection criteria include dual-core lockstep readiness, ASIL-B safety certification, 160 MHz deterministic timing, QuadSPI bandwidth, and FlexCAN channel count for automotive network architecture validation.
Technical Context
The S32K324EHT1MPBIT implements two independent Arm Cortex-M7 cores with separate I/D caches, FPU, and DSP extensions, each running at up to 160 MHz with zero-wait-state TCM RAM for latency-critical motor control loops. Its cross-triggering infrastructure links BCTU, ADCs, eMIOS timers, and LCU modules for synchronized sensor acquisition and actuator response.
Power management integrates PMC with RUN/STANDBY modes, peripheral-specific clock gating, and wakeup-capable GPIOs (up to 60 pins), while safety architecture includes ECC on all memories, CRC module, dual SWT timers, XRDC access control, and HSE-B security engine supporting AES acceleration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual independent Arm Cortex-M7 @ up to 160 MHz - enables parallel real-time tasks without lockstep overhead. |
| Flash Memory | 4 MB program flash with ECC - ensures data integrity across automotive lifecycle and OTA updates. |
| SRAM | 512 KB SRAM with ECC, including 192 KB TCM - provides low-latency memory for time-critical control code execution. |
| QuadSPI Interface | Up to 480 Mbps, 4-bit data width - supports fast external Flash/RAM expansion for logging, firmware staging, or graphics buffers. |
| FlexCAN Channels | 6 modules, all with CAN-FD support - enables high-bandwidth vehicle network backbone with backward compatibility. |
| ADC | Three 12-bit ADCs, up to 24 channels each - allows simultaneous sampling of multiple sensors in battery management or chassis control. |
| Temperature Range | -40 °C to +125 °C ambient - validated for under-hood and powertrain ECU deployment without derating. |
| Supply Voltage | 2.97 V to 5.5 V - compatible with automotive 3.3 V and 5 V supply rails and brown-out resilience. |
Pinout & Package
Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed pad for thermal dissipation in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog Power / Ground | Isolated analog supply domain for ADC/CMP reference stability and noise immunity. |
| FXOSC_IN / FXOSC_OUT | External Oscillator Interface | Supports 8–40 MHz crystal for precise system clock generation and jitter-sensitive CAN/Ethernet timing. |
| ETH_RMII_RXD0–RXD1 | Ethernet RMII Receive Data | Direct connection to 100 Mbps AVB/TSN PHY without external glue logic. |
| CAN0_TX / CAN0_RX | FlexCAN Channel 0 Differential Signals | Integrated CAN transceiver interface with configurable bit timing for automotive network node implementation. |
| JTAG_TCK / JTAG_TDO | Debug Clock / Data Out | Enables SWD-based debugging and trace via 2-pin Serial Wire Debug port per Arm CoreSight specification. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Cortex-M7 Cores | Independent execution with dedicated TCM and caches - eliminates shared-bus contention in multi-domain control applications. |
| ASIL-B Functional Safety | Hardware redundancy, centralized error detection, FCCU, and STCU2 - meets ISO 26262 requirements without external safety monitor. |
| QuadSPI External Memory Interface | 480 Mbps throughput, A/B swap support - enables robust OTA firmware updates with zero downtime. |
| FlexIO Module | 32-channel programmable serial interface - emulates UART, SPI, I2S, SENT, or custom protocols without CPU load. |
| HSE-B Security Engine | AES acceleration, TRNG/PRNG, side-channel protection - satisfies EVITA Full security goals for secure boot and key management. |
| BCTU Cross-Trigger Unit | Hardware-synchronized ADC sampling and timer capture - ensures phase-aligned measurement of motor current/voltage pairs. |
Applications
| Body Control Module (BCM) | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators across vehicle zones. IC Role / Device Role / Timing Role: Main application processor managing LIN/UART gateways, PWM-driven loads, and CAN FD communication with gateway ECU. Use Value: Dual-core architecture isolates safety-critical steering assist functions from non-critical comfort features, reducing software complexity and certification scope. |
Use Scenario: Real-time torque calculation, motor position feedback processing, and fail-safe torque limiting in steer-by-wire systems. IC Role / Device Role / Timing Role: Primary controller executing field-oriented control (FOC) loops at ≤100 µs intervals using TCM-resident code and hardware-accelerated math. Use Value: 192 KB TCM RAM and deterministic eMIOS timers enable sub-100 µs loop latency without cache misses or bus arbitration delays. |
| Vehicle Domain Controller | Advanced Driver Assistance System (ADAS) Sensor Hub |
Use Scenario: Consolidation of legacy ECUs (e.g., seat, mirror, wiper) into a single high-integration domain controller with OTA update capability. IC Role / Device Role / Timing Role: Central compute node coordinating CAN FD, Ethernet TSN, and FlexIO-peripheral interfaces across multiple vehicle subsystems. Use Value: QuadSPI interface supports local storage of configuration profiles and diagnostic logs, enabling offline diagnostics and reduced cloud dependency. |
Use Scenario: Aggregation and preprocessing of radar, camera, and ultrasonic sensor data before forwarding to central ADAS processor. IC Role / Device Role / Timing Role: Preprocessing node performing time-synchronized timestamping, filtering, and CAN FD packetization of raw sensor streams. Use Value: BCTU-triggered ADC sampling and hardware CRC offload reduce CPU utilization by >35% versus software-only implementations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344EHT1MPBIT | ASIL-D lockstep dual-core, same 4 MB flash and 512 KB SRAM, but with redundant core pair and enhanced safety mechanisms. | Required for steering-critical or brake-by-wire applications where ASIL-D decomposition is mandated. | Select when functional safety requirements exceed ASIL-B; otherwise S32K324EHT1MPBIT offers lower cost and higher flexibility. |
| S32K314EHT1MPBIT | ASIL-B single-core variant with identical 4 MB flash and 512 KB SRAM, but no dual-core parallelism or TSN Ethernet. | Suitable for cost-sensitive body control nodes without real-time inter-core coordination or time-sensitive networking. | Choose for simpler architectures where dual-core overhead is unnecessary and Ethernet is not required. |
Compared with S32K344EHT1MPBIT, the S32K324EHT1MPBIT trades ASIL-D lockstep assurance for dual-core independence and lower BOM cost; versus S32K314EHT1MPBIT, it adds deterministic dual-core scheduling and TSN-capable Ethernet-critical for domain consolidation.
Availability
S32K324EHT1MPBIT is available at Aetrix Electronics and suitable for automotive body electronics, electric power steering systems, and vehicle domain controllers requiring stable component supply, long-term lifecycle support, and ASIL-B certified silicon.
Supply support for S32K324EHT1MPBIT 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 product line targets next-generation automotive ECUs, delivering scalable Arm Cortex-M7 performance, ASIL-B/D safety certification, and integrated security for domain controllers, zonal architectures, and electrification systems.
FAQ
What is the maximum operating frequency of the S32K324EHT1MPBIT?
The S32K324EHT1MPBIT features two independent Arm Cortex-M7 cores, each capable of operating at up to 160 MHz. This frequency is sustained across the full -40 °C to +125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, with hardware-enforced voltage/frequency scaling managed by the PMC. The S32K324EHT1MPBIT achieves deterministic real-time behavior without dynamic frequency throttling.
Does the S32K324EHT1MPBIT support CAN FD, and how many channels are available?
Yes, the S32K324EHT1MPBIT integrates six FlexCAN modules, all supporting CAN FD protocol with bit rates up to 5 Mbps and flexible data field lengths. Each channel includes dedicated message RAM, acceptance filtering, and hardware timestamping, enabling concurrent operation on multiple vehicle networks without CPU intervention.
What package type is used for the S32K324EHT1MPBIT, and what are its thermal characteristics?
The S32K324EHT1MPBIT is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad. This package supports junction-to-board thermal resistance (θJB) of 12.5 °C/W and junction-to-case (θJC) of 3.2 °C/W under standard PCB layout conditions, enabling reliable operation at 125 °C ambient in under-hood applications with minimal heatsinking.
How does the S32K324EHT1MPBIT implement functional safety for ASIL-B compliance?
The S32K324EHT1MPBIT achieves ASIL-B compliance through integrated hardware safety mechanisms: ECC on all memories, dual independent SWT timers, centralized error collection via FCCU, clock/voltage monitoring, and XRDC-based memory access protection. It includes STCU2 for safety state management and supports ISO 26262 Part 5/6 development workflows without requiring external safety monitors.
Is QuadSPI supported on the S32K324EHT1MPBIT, and what are its performance specifications?
Yes, the S32K324EHT1MPBIT includes one QuadSPI interface supporting up to 480 Mbps with 4-bit data width and DDR mode. It enables direct XIP execution from external Flash, A/B firmware swapping for safe OTA updates, and DMA-accelerated transfers. The interface complies with JEDEC JESD216D and supports octal STR/DTR modes via software configuration.
S32K324EHT1MPBIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 172-QFP
- Series:
- S32K3
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit Dual-Core
- Speed:
- 160MHz
- Connectivity:
- CANbus, Ethernet, FlexIO, I2C, LINbus, QSPI, SAI, SENT, SPI, UART/USART
- Peripherals:
- DMA, I2S, WDT
- Number of I/O:
- 142
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 128K x 8
- RAM Size:
- 512K 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:
S32K324EHT1MPBIT FAQ
1.How can I place an order for S32K324EHT1MPBIT through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K324EHT1MPBIT 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 S32K324EHT1MPBIT reliable?
The price and inventory of S32K324EHT1MPBIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K324EHT1MPBIT is usually 5 days.
3.What payment methods are accepted for S32K324EHT1MPBIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K324EHT1MPBIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K324EHT1MPBIT?
S32K324EHT1MPBIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K324EHT1MPBIT 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 S32K324EHT1MPBIT?
For technical support, including S32K324EHT1MPBIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K324EHT1MPBIT requirements.
6.How does Aetrix verify that S32K324EHT1MPBIT is sourced from the original manufacturer or authorized distributors?
All S32K324EHT1MPBIT 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 S32K324EHT1MPBIT meets industry standards.
7.What is the process for return or replacement of S32K324EHT1MPBIT?
All S32K324EHT1MPBIT units undergo pre-shipment inspection (PSI). If there is an issue with S32K324EHT1MPBIT, 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 S32K324EHT1MPBIT part is unused and in its original packaging.
Return procedure for S32K324EHT1MPBIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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