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NXP Semiconductors S32K338GHT1MPCSR
- Part No.:
- S32K338GHT1MPCSR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 172-QFP Exposed Pad
- Datasheet:
-
S32K338GHT1MPCSR.pdf
- Description:
- S32K338GHT1MPCSR
- Quantity:
- Payment:
- Shipping:
Inventory:2,430
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Product details
Overview
S32K338GHT1MPCSR from NXP Semiconductors is an ASIL-B certified automotive MCU featuring three independent Arm Cortex-M7 cores operating at up to 240 MHz, 8 MB ECC-protected program flash, 1152 KB ECC SRAM (including 384 KB TCM), and support for CAN FD, Ethernet AVB/TSN, QuadSPI (up to 2 Gbps), and triple 12-bit ADCs. It targets high-integrity body control, domain controller, and advanced driver assistance systems in harsh automotive environments.
For engineers reviewing the S32K338GHT1MPCSR datasheet, S32K338GHT1MPCSR pinout, S32K338GHT1MPCSR application, or S32K338GHT1MPCSR equivalent, key selection criteria include triple-core real-time determinism, ASIL-B safety compliance, 384 KB tightly coupled memory for latency-critical control loops, and integrated FlexCAN/Ethernet/SAI interfaces for vehicle networking and audio subsystems.
Technical Context
The S32K338GHT1MPCSR implements three independent Arm Cortex-M7 cores-each with FPU, DSP, I/D-cache, and zero-wait-state TCM-orchestrated via a 64-bit crossbar fabric. Its safety architecture includes centralized error detection, MBIST/LBIST, clock/voltage monitors, and ASIL-B-compliant functional safety management units (FCCU, CMU, STCU).
Memory subsystem features ECC on all flash and SRAM, RWW capability with A/B swap for OTA updates, and QuadSPI supporting 8-bit data width at up to 2 Gbps for external memory expansion. Analog subsystem integrates three 24-channel 12-bit ADCs, three LPCMPs with internal 8-bit DACs, and BCTU for precise cross-triggering between ADCs and timers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Three independent Arm Cortex-M7 cores, each up to 240 MHz, with FPU, DSP, and I/D-cache |
| Flash Memory | 8 MB program flash with ECC and Read-While-Write (RWW) for A/B OTA updates |
| SRAM | 1152 KB SRAM with ECC, including 384 KB TCM for deterministic low-latency execution |
| Operating Voltage | 2.97 V to 5.5 V - supports direct connection to automotive battery rail without external regulation |
| Temperature Range | -40 °C to +125 °C ambient - qualified for under-hood and chassis-mounted automotive applications |
| Functional Safety | ISO 26262 ASIL-B compliant with hardware redundancy, self-test, and centralized error detection |
| Networking | 8 FlexCAN channels (all with CAN FD), 1x 1 Gbps Ethernet (AVB/TSN), 2x SAI, 6x LPSPI, 2x LPI2C |
Pinout & Package
Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch, exposed thermal pad). Pin count: 437 terminals. Compatible with automotive-grade PCB assembly and thermal management requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog Power Supply | 3.3 V ±10% supply for ADC, CMP, and analog reference circuits; requires local decoupling |
| VDD | Digital Core Power | 1.2 V core supply for CPU, cache, and fabric; regulated by internal LDO or external PMIC |
| VRH/VRT | ADC Reference High/Low | Configurable reference inputs enabling ratiometric or absolute voltage measurement modes |
| ENET_RXD0–3 | Ethernet Receive Data | LVDS-capable inputs for 100/1000BASE-T operation; require controlled impedance routing |
| FLEXCAN0_TX | CAN FD Transmit Output | High-speed differential driver (ISO 11898-2 compliant) with slew rate control for EMI reduction |
| QSPI_D0–D7 | QuadSPI Data Bus | 8-bit bidirectional data lines supporting double-data-rate (DDR) mode up to 2 Gbps throughput |
Key Features
| Feature | Design Value |
|---|---|
| Triple Independent M7 Cores | Enables partitioned real-time workloads (e.g., safety monitor + application + communication stack) without lockstep overhead |
| 384 KB TCM RAM | Zero-wait-state memory mapped directly to CPU address space, eliminating cache misses in motor control or ADAS timing loops |
| ASIL-B Safety Architecture | Includes FCCU fault collection, STCU2 time supervision, and hardware CRC/EDC for end-to-end data path integrity |
| QuadSPI @ 2 Gbps | 8-bit DDR interface enabling fast boot-from-external-flash and seamless XIP execution for large firmware images |
| BCTU Cross-Trigger Unit | Hardware-synchronized sampling of ADC conversions triggered by eMIOS timer events-no CPU intervention required |
Applications
| Body Control Module (BCM) | Zone Domain Controller |
|---|---|
Use Scenario: Centralized power distribution, lighting control, door/window actuation, and LIN gateway in modern vehicle architectures. IC Role / Device Role / Timing Role: Primary application MCU managing multiple LIN clusters, PWM-driven LED drivers, and CAN FD backbone communication. Use Value: Triple-core isolation allows concurrent execution of safety-critical power monitoring (Core 0), user-interface logic (Core 1), and network protocol stacks (Core 2) with guaranteed latency. |
Use Scenario: Consolidated electronic control unit aggregating sensor data, executing basic ADAS functions, and routing messages across CAN FD, Ethernet, and FlexIO-emulated protocols. IC Role / Device Role / Timing Role: Real-time domain orchestrator with dedicated core for time-sensitive sensor fusion and another for secure over-the-air update handling. Use Value: 384 KB TCM enables sub-1 µs interrupt response for radar pre-processing; QuadSPI supports rapid loading of updated perception models from external flash. |
| Advanced Lighting Control | Electric Power Steering (EPS) Support MCU |
Use Scenario: Adaptive front-lighting system (AFS) with dynamic beam shaping, matrix LED control, and thermal derating logic. IC Role / Device Role / Timing Role: High-resolution PWM generator and closed-loop current monitor using eMIOS timers and ADCs with BCTU synchronization. Use Value: Three 24-channel 12-bit ADCs allow simultaneous sampling of LED forward voltage, temperature sensors, and current shunts-enabling per-pixel brightness calibration. |
Use Scenario: Secondary MCU in EPS systems handling torque sensor signal conditioning, motor phase current monitoring, and CAN FD communication with main controller. IC Role / Device Role / Timing Role: Deterministic analog acquisition node with hardware-triggered ADC sequences synchronized to motor commutation events. Use Value: BCTU + eMIOS + ADC integration achieves <500 ns jitter in current sampling-critical for field-oriented control stability at high motor speeds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K344 | ASIL-D lockstep dual-core M7 (160 MHz), 4 MB flash, 512 KB RAM, no TCM expansion beyond 192 KB | Targeted at safety-critical steering/braking where lockstep redundancy is mandated over multi-core flexibility | Select when ISO 26262 ASIL-D certification is required and deterministic fault containment outweighs need for three independent execution domains |
| S32K328 | ASIL-B dual-core M7 (240 MHz), 8 MB flash, 1152 KB RAM, 192 KB TCM, same package footprint but no third core or 384 KB TCM option | Optimized for cost-sensitive dual-core applications like gateway or telematics where third core is unnecessary | Select when workload fits two cores and lower BOM cost justifies reduced TCM headroom for ultra-low-latency tasks |
Compared with S32K344 and S32K328, the S32K338GHT1MPCSR uniquely delivers three independent high-frequency M7 cores with 384 KB TCM-enabling true hardware-isolated real-time domains without software partitioning trade-offs-while maintaining ASIL-B qualification and full peripheral compatibility within the S32K3xx family.
Availability
S32K338GHT1MPCSR is available at Aetrix Electronics and suitable for automotive body control modules, zone domain controllers, adaptive lighting systems, electric power steering support electronics, and Ethernet-based vehicle networking requiring stable component supply across extended production lifecycles.
Supply support for S32K338GHT1MPCSR 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 was designed specifically for next-generation automotive domain controllers and body electronics, emphasizing ASIL-B/D compliance, multi-core real-time performance, and scalable memory/peripheral integration across a common pin-compatible family.
FAQ
What is the maximum operating frequency of the S32K338GHT1MPCSR cores?
The S32K338GHT1MPCSR integrates three independent Arm Cortex-M7 cores, each capable of operating at up to 240 MHz. This frequency is supported across the full -40 °C to +125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, with thermal management ensured by the MAPBGA437 package's exposed pad. All three cores in the S32K338GHT1MPCSR maintain this peak frequency simultaneously under validated thermal conditions.
Does the S32K338GHT1MPCSR support CAN FD, and how many channels are available?
Yes, the S32K338GHT1MPCSR supports CAN FD on all eight 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 configuration and built-in message filtering. This capability is confirmed in the S32K3xx Data Sheet Rev. 14 and applies specifically to the S32K338GHT1MPCSR variant.
What safety certifications does the S32K338GHT1MPCSR hold?
The S32K338GHT1MPCSR is certified to ISO 26262 ASIL-B at the device level. Its safety architecture includes hardware redundancy, MBIST/LBIST, clock and voltage monitors, FCCU fault collection, and centralized error detection-fully documented in the S32K3xx Functional Safety Manual. It does not carry ASIL-D certification; that rating applies only to lockstep variants like S32K344 and S32K348.
How much TCM RAM does the S32K338GHT1MPCSR provide, and why is it significant?
The S32K338GHT1MPCSR provides 384 KB of tightly coupled memory (TCM) - 192 KB instruction TCM (ITCM) and 192 KB data TCM (DTCM) - mapped directly into each core's address space with zero wait states. This eliminates cache misses in time-critical control loops, such as motor commutation or radar preprocessing, ensuring deterministic sub-microsecond interrupt response times essential for automotive real-time applications.
Is the S32K338GHT1MPCSR pin-compatible with other S32K3xx devices?
Yes, the S32K338GHT1MPCSR in the MAPBGA437 package shares identical pinout and electrical characteristics with other S32K3xx family members offered in the same package option-including S32K328, S32K344, and S32K348. This enables hardware reuse across ASIL-B and ASIL-D variants, simplifying board design and migration paths while preserving layout integrity and signal integrity constraints.
S32K338GHT1MPCSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 172-QFP Exposed Pad
- Series:
- S32K3
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit Tri-Core
- Speed:
- 240MHz
- Connectivity:
- CANbus, Ethernet, FlexIO, I2C, LINbus, QSPI, SAI, SENT, SPI, UART/USART
- Peripherals:
- DMA, I2S, WDT
- Number of I/O:
- 142
- 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:
S32K338GHT1MPCSR FAQ
1.How can I place an order for S32K338GHT1MPCSR through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K338GHT1MPCSR 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 S32K338GHT1MPCSR reliable?
The price and inventory of S32K338GHT1MPCSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K338GHT1MPCSR is usually 5 days.
3.What payment methods are accepted for S32K338GHT1MPCSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K338GHT1MPCSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K338GHT1MPCSR?
S32K338GHT1MPCSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K338GHT1MPCSR 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 S32K338GHT1MPCSR?
For technical support, including S32K338GHT1MPCSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K338GHT1MPCSR requirements.
6.How does Aetrix verify that S32K338GHT1MPCSR is sourced from the original manufacturer or authorized distributors?
All S32K338GHT1MPCSR 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 S32K338GHT1MPCSR meets industry standards.
7.What is the process for return or replacement of S32K338GHT1MPCSR?
All S32K338GHT1MPCSR units undergo pre-shipment inspection (PSI). If there is an issue with S32K338GHT1MPCSR, 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 S32K338GHT1MPCSR part is unused and in its original packaging.
Return procedure for S32K338GHT1MPCSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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