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NXP Semiconductors S32K344EHT1VMMST
- Part No.:
- S32K344EHT1VMMST
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 257-LFBGA
- Datasheet:
-
S32K344EHT1VMMST.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 257LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,043
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Product details
Overview
S32K344EHT1VMMST from NXP Semiconductors is an ASIL-D qualified automotive MCU featuring a dual Arm Cortex-M7 lockstep core operating at 160 MHz, 4 MB ECC-protected program flash, 512 KB ECC SRAM (including 192 KB TCM), and support for CAN FD, Ethernet AVB/TSN, QuadSPI, and dual SAI audio interfaces. It targets safety-critical body control modules and domain controllers in electric vehicle powertrain gateways.
For engineers reviewing the S32K344EHT1VMMST datasheet, S32K344EHT1VMMST pinout, S32K344EHT1VMMST application, or S32K344EHT1VMMST equivalent, key selection criteria include ASIL-D compliance, lockstep CPU architecture, 4 MB flash with RWW A/B swap capability, integrated HSE-B security engine, and package-specific I/O count (437-ball MAPBGA).
Technical Context
The S32K344EHT1VMMST implements a dual-core Arm Cortex-M7 lockstep configuration with independent 160 MHz operation, I/D caches, and tightly coupled memory (TCM) to ensure deterministic real-time response. Its safety architecture includes hardware redundancy, centralized error detection (FCCU), memory ECC/EDC, and XRDC-based access control across all masters.
It integrates a full suite of automotive communication peripherals: six FlexCAN modules (all channels CAN FD-capable), sixteen LPUARTs (LIN-compliant), six LPSPIs, two LPI2Cs, one 100 Mbps Ethernet AVB/TSN controller, and two Synchronous Audio Interfaces (SAI) supporting TDM and I2S protocols - all with DMA support and autonomous low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Dual Arm Cortex-M7 cores in lockstep, 160 MHz - enables ASIL-D fault detection via comparison and recovery without software intervention. |
| Flash Memory | 4 MB program flash with ECC and Read-While-Write (RWW) A/B swap - supports safe over-the-air (OTA) firmware updates with zero downtime. |
| SRAM | 512 KB SRAM with ECC, including 192 KB TCM - provides low-latency, high-reliability memory for time-critical control loops and safety monitors. |
| Operating Voltage | 2.97 V to 5.5 V - compatible with 3.3 V and 5 V automotive supply rails and robust against battery transients. |
| Temperature Range | −40 °C to +125 °C - qualified for under-hood and chassis-mounted applications per AEC-Q100 Grade 1. |
| Security Engine | HSE-B hardware security module - accelerates AES-256, RSA-4096, and ECC-521; includes firmware upgradability and side-channel protection. |
| Safety Certification | ISO 26262 ASIL-D compliant - certified for safety goals up to SIL-3 equivalent with integrated fault collection and mitigation (FCCU, CMU, SWT). |
Pinout & Package
Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch, exposed thermal pad). Pin count and I/O mapping are defined per ball grid layout; exact pin functions depend on selected peripheral configuration and device variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA / VSSA | Analog Power / Ground | Isolated analog supply domain for ADC, comparators, and reference voltage stability - requires separate filtering from digital rails. |
| FXOSC_IN / FXOSC_OUT | External Crystal Oscillator Interface | Supports 8–40 MHz crystal input - used for high-accuracy system clock generation and PLL reference. |
| ENET_RXD0–3 / TXD0–3 | Ethernet PHY Data Interface | 100 Mbps RMII-compatible signals - enables time-sensitive networking (TSN) and AVB streaming without external PHY. |
| CAN0_TX / CAN0_RX | FlexCAN Channel 0 Differential Interface | Direct connection to CAN transceiver - supports ISO 11898-1 CAN FD up to 5 Mbps with flexible data rate arbitration. |
| SAI0_MCLK / SAI0_BCLK | Synchronous Audio Interface Clocks | Master clock and bit clock outputs - drive external audio codecs or DSPs in automotive infotainment or ADAS audio processing. |
Key Features
| Feature | Design Value |
|---|---|
| Lockstep Dual Cortex-M7 | Hardware-enforced instruction-level comparison between cores ensures immediate fault detection and fail-safe shutdown per ASIL-D requirements. |
| QuadSPI Interface | Up to 480 Mbps, 4-bit data width - enables direct XIP execution from external flash and seamless expansion of code/data storage beyond on-chip limits. |
| Flexible I/O Emulation | 32-channel FlexIO module - configures as UART, I²C, SPI, I²S, SENT, or PWM without dedicated hardware blocks, reducing BOM and PCB complexity. |
| Body Control Trigger Unit (BCTU) | Hardware cross-triggering between ADC, timers, and eMIOS - eliminates CPU overhead in sensor-synchronized motor control and diagnostics. |
| Virtualization Wrapper (VIRT_WRAPPER) | Per-peripheral I/O protection - isolates safety-critical and non-safety partitions to prevent unauthorized register access or DMA corruption. |
Applications
| Electric Powertrain Gateway | ADAS Domain Controller |
|---|---|
Use Scenario: Centralized communication hub aggregating CAN FD, LIN, and Ethernet traffic between battery management systems, inverters, and vehicle control units. IC Role / Device Role / Timing Role: Safety-certified gateway processor executing ASIL-D communication stacks, secure boot, and OTA update orchestration. Use Value: Eliminates need for external safety monitor by integrating FCCU, HSE-B, and lockstep CPU - reduces latency and component count in high-voltage traction systems. |
Use Scenario: Sensor fusion node processing radar, camera, and ultrasonic inputs while managing actuator commands for lane-keeping and emergency braking. IC Role / Device Role / Timing Role: Real-time deterministic controller with TCM RAM and eMIOS timers ensuring sub-10 µs interrupt response for time-critical safety actions. Use Value: On-chip BCTU and ADC trigger synchronization enable precise timestamping of sensor events - critical for ISO 26262 timing analysis and fault injection testing. |
| Automotive Body Control Module | Commercial Vehicle Telematics Unit |
Use Scenario: Integrated lighting, door, and HVAC controller with LIN slave emulation and CAN FD diagnostics in premium passenger vehicles. IC Role / Device Role / Timing Role: General-purpose ASIL-D MCU running AUTOSAR Classic with configurable FlexIO emulating multiple LIN transceivers. Use Value: Reduces external LIN transceiver count by 6+ units via software-configurable FlexIO - lowers cost and improves EMI resilience in distributed architectures. |
Use Scenario: Fleet telematics gateway collecting GPS, engine telemetry, and driver behavior data for remote diagnostics and predictive maintenance. IC Role / Device Role / Timing Role: Secure edge node with HSE-B crypto acceleration, uSDHC interface, and dual CAN FD for legacy bus integration. Use Value: Hardware-accelerated AES-256 and unique 64-bit ID enable end-to-end encrypted data transmission - meets UNECE R155 cybersecurity management system (CSMS) requirements. |
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 |
|---|---|---|---|
| S32K342EHT1VMMST | 2 MB flash, same lockstep M7 @ 160 MHz, identical package and peripheral set except reduced flash and RAM (256 KB SRAM, 192 KB TCM). | Targeted at cost-optimized ASIL-D body control modules where firmware size < 2 MB and OTA A/B swap is still required. | Select when application firmware footprint fits within 2 MB and full 4 MB headroom is unnecessary - lower unit cost with no layout change. |
| S32K348EHT1VMMST | 8 MB flash, 1152 KB ECC SRAM (192 KB TCM), dual 240 MHz M7 cores, 1 Gbps Ethernet, 2 Gbps QuadSPI, uSDHC interface. | Required for high-bandwidth applications like central vehicle computers with Linux/AUTOSAR hybrid OS, multi-camera preprocessing, or cloud-connected V2X gateways. | Choose when future-proofing for larger firmware, external storage (uSD), or higher-speed networking is mandatory - same pinout but requires thermal redesign for 240 MHz operation. |
Compared with S32K342EHT1VMMST, the S32K344EHT1VMMST delivers double flash capacity and 2× SRAM for complex safety stacks and dual-application partitioning; versus S32K348EHT1VMMST, it trades bandwidth and memory headroom for lower power and thermal simplicity in mid-tier domain controllers.
Availability
S32K344EHT1VMMST is available at Aetrix Electronics and suitable for automotive body control modules, electric powertrain gateways, ADAS domain controllers, and commercial vehicle telematics requiring stable component supply across extended product lifecycles.
Supply support for S32K344EHT1VMMST 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 family - including the S32K344EHT1VMMST - was designed specifically for ASIL-D automotive domain controllers, integrating lockstep processing, hardware security, and automotive network interfaces into a single scalable platform.
FAQ
What is the maximum operating frequency of the S32K344EHT1VMMST CPU cores?
The S32K344EHT1VMMST features dual Arm Cortex-M7 cores operating in lockstep at 160 MHz. This frequency is guaranteed across the full −40 °C to +125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, with all timing margins validated per ISO 26262 ASIL-D requirements. The S32K344EHT1VMMST does not support overclocking beyond this rated speed.
Does the S32K344EHT1VMMST support CAN FD on all FlexCAN modules?
Yes, the S32K344EHT1VMMST supports CAN FD on all six integrated FlexCAN modules. Each channel complies with ISO 11898-1:2015 and supports data rates up to 5 Mbps in FD mode, with flexible bit timing, payload lengths up to 64 bytes, and built-in CRC and error handling - confirmed in the S32K3xx Data Sheet Rev. 14, Section 10.3.1.
What package type is used for the S32K344EHT1VMMST?
The S32K344EHT1VMMST uses the MAPBGA437 package: a 17 mm × 17 mm, 0.8 mm pitch ball grid array with 437 I/O balls and an exposed thermal pad. This package is explicitly listed in the S32K3xx Data Sheet Rev. 14, Figure 9 and Table 1-1, and is optimized for automotive thermal and mechanical reliability.
Is the HSE-B security engine included in the S32K344EHT1VMMST?
Yes, the S32K344EHT1VMMST includes the HSE-B hardware security engine. It supports AES-256 encryption/decryption acceleration, RSA-4096 and ECC-521 signing/verification, true random number generation (TRNG), and firmware upgradability - as documented in Section 13.1 of the S32K3xx Data Sheet Rev. 14 and confirmed for K344 variants.
What is the purpose of the BCTU (Body Control Trigger Unit) in the S32K344EHT1VMMST?
The BCTU in the S32K344EHT1VMMST provides hardware-level cross-triggering between analog and timer subsystems - enabling precise, CPU-free synchronization of ADC sampling, eMIOS PWM generation, and LCU logic operations. This reduces interrupt latency and jitter in safety-critical control loops such as battery cell monitoring or motor phase current sensing.
S32K344EHT1VMMST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 257-LFBGA
- Series:
- S32K3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 160MHz
- Connectivity:
- CANbus, Ethernet, FlexIO, I2C, LINBus, SPI, QSPI, UART/USART
- Peripherals:
- DMA, I2S, Serial Audio, WDT
- Number of I/O:
- 218
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 24x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S32K344EHT1VMMST FAQ
1.How can I place an order for S32K344EHT1VMMST through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K344EHT1VMMST 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 S32K344EHT1VMMST reliable?
The price and inventory of S32K344EHT1VMMST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K344EHT1VMMST is usually 5 days.
3.What payment methods are accepted for S32K344EHT1VMMST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K344EHT1VMMST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K344EHT1VMMST?
S32K344EHT1VMMST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K344EHT1VMMST 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 S32K344EHT1VMMST?
For technical support, including S32K344EHT1VMMST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K344EHT1VMMST requirements.
6.How does Aetrix verify that S32K344EHT1VMMST is sourced from the original manufacturer or authorized distributors?
All S32K344EHT1VMMST 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 S32K344EHT1VMMST meets industry standards.
7.What is the process for return or replacement of S32K344EHT1VMMST?
All S32K344EHT1VMMST units undergo pre-shipment inspection (PSI). If there is an issue with S32K344EHT1VMMST, 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 S32K344EHT1VMMST part is unused and in its original packaging.
Return procedure for S32K344EHT1VMMST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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