NXP Semiconductors S32K328GHT1MJBSR

Overview

S32K328GHT1MJBSR from NXP Semiconductors is an ASIL-B dual-core Arm® Cortex-M7 automotive microcontroller operating up to 240 MHz, featuring 8 MB ECC-protected program flash, 1152 KB SRAM (including 192 KB TCM), and integrated Ethernet (1 Gbps AVB/TSN), eight FlexCAN modules with CAN FD support, and triple 12-bit ADCs for body control and powertrain applications.

For engineers reviewing the S32K328GHT1MJBSR datasheet, S32K328GHT1MJBSR pinout, S32K328GHT1MJBSR application, or S32K328GHT1MJBSR equivalent, this device serves as a high-integration, safety-compliant MCU for automotive domain controllers requiring deterministic real-time performance, secure boot, and multi-protocol connectivity in harsh environments.

Technical Context

The S32K328GHT1MJBSR implements two independent Arm Cortex-M7 cores running at up to 240 MHz each, with separate I/D caches, FPU, DSP extensions, and zero-wait-state TCM RAM to minimize latency in motor control and safety-critical loops. It integrates a 64-bit crossbar fabric enabling concurrent access to memory and peripherals without bus contention.

Its safety architecture includes ECC on all memories, dual SWT timers, centralized error detection via FCCU, and XRDC-based access control across masters-meeting ISO 26262 ASIL-B requirements. The device supports RWW flash, A/B swap for OTA updates, and hardware-accelerated AES via HSE_B (shared with S32K388/K389).

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed thermal pad - optimized for automotive EMI resilience and thermal dissipation in compact ECUs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Compared with S32K328GHT1MJBSR, S32K344 adds ASIL-D qualification and lockstep operation at identical performance and footprint, while S32K324 reduces memory and networking capability to lower cost-enabling scalable platform design across vehicle tiers.

Availability

S32K328GHT1MJBSR is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering units, zonal gateways, and ADAS sensor hubs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 1 qualification.

Supply support for S32K328GHT1MJBSR 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 automotive, industrial, and IoT applications, delivering secure, energy-efficient, and safety-certified silicon solutions.

The S32K3xx product line targets next-generation automotive electronic control units, emphasizing ASIL-B/D compliance, real-time determinism, and scalable multicore architecture for domain-centralized and zonal E/E architectures.

FAQ

What is the maximum operating frequency of the S32K328GHT1MJBSR?

The S32K328GHT1MJBSR features two independent Arm Cortex-M7 cores, each capable of running 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 on-chip PLL and voltage regulation ensuring stable operation in automotive transients. The S32K328GHT1MJBSR achieves this performance while maintaining ASIL-B compliance through hardware redundancy and error detection mechanisms.

Does the S32K328GHT1MJBSR support CAN FD?

Yes, the S32K328GHT1MJBSR integrates eight FlexCAN modules, each fully supporting CAN FD with bit rates up to 5 Mbps and payload lengths up to 64 bytes. All CAN FD channels include built-in message filtering, FIFO buffering, and wake-on-CAN functionality-enabling robust communication in high-bandwidth automotive networks such as domain controllers and gateways. The S32K328GHT1MJBSR does not require external transceivers for basic operation but pairs with standard CAN FD PHYs for physical layer compliance.

What package type is used for the S32K328GHT1MJBSR?

The S32K328GHT1MJBSR is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with an exposed thermal pad. This package supports high I/O density (320 GPIO), thermal dissipation required for under-hood operation, and automotive-grade mechanical reliability including resistance to thermal cycling and vibration. Pin compatibility is maintained across the S32K3xx family for MAPBGA437 variants, allowing layout reuse between S32K328GHT1MJBSR and other members like S32K324 or S32K344.

Is Ethernet supported on the S32K328GHT1MJBSR, and what standards does it implement?

Yes, the S32K328GHT1MJBSR includes a single 1 Gbps Ethernet MAC with support for IEEE 802.1AS (gPTP), 802.1Qav (AVB), and 802.1Qbv (TSN) time-sensitive networking standards. It operates in GMII/RMII modes and integrates hardware timestamping, priority queuing, and traffic shaping-enabling deterministic communication for ADAS sensor fusion and zonal gateway applications. The S32K328GHT1MJBSR requires an external PHY for physical layer implementation but provides all necessary MAC-level TSN features in silicon.

What safety certifications apply to the S32K328GHT1MJBSR?

The S32K328GHT1MJBSR is certified to ISO 26262 ASIL-B at the device level, with supporting documentation including FMEDA reports, safety manuals, and diagnostic coverage analysis. It incorporates hardware safety mechanisms such as ECC on all memories, dual SWT timers, FCCU-based fault collection, and XRDC-enforced memory access control. The S32K328GHT1MJBSR meets AEC-Q100 Grade 1 requirements and supports safe startup, runtime self-tests, and fail-safe state transitions-making it suitable for body control, gateway, and non-chassis ADAS applications.