NXP Semiconductors S32K322EHT0VPBSR

Overview

S32K322EHT0VPBSR from NXP Semiconductors is a dual-core Arm Cortex-M7 automotive microcontroller operating at up to 160 MHz, featuring 2 MB program flash with ECC, 256 KB SRAM with ECC (including 192 KB TCM), and ASIL-B functional safety compliance. It integrates two FlexCAN modules with CAN FD support, QuadSPI interface (up to 480 Mbps), and Ethernet (100 Mbps AVB/TSN) for vehicle networking applications.

For engineers reviewing the S32K322EHT0VPBSR datasheet, S32K322EHT0VPBSR pinout, S32K322EHT0VPBSR application, or S32K322EHT0VPBSR equivalent, key selection criteria include dual-core real-time determinism, ASIL-B safety architecture, QuadSPI + Ethernet coexistence, and MAPBGA437 package compatibility with automotive ECU thermal and layout constraints.

Technical Context

The S32K322EHT0VPBSR implements two independent Arm Cortex-M7 cores-each with FPU, DSP, I/D-cache, and zero-wait TCM-enabling lockstep-optional asymmetric processing. Its memory subsystem includes ECC-protected 2 MB flash and 256 KB SRAM (192 KB TCM), supporting RWW and A/B swap for OTA updates.

Timing and communication are managed via dedicated hardware: BCTU enables cross-triggering between ADCs and timers; TRGMUX routes events across domains; and the Xbar 64-bit interconnect ensures deterministic latency for safety-critical peripherals including FCCU, SWT, and XRDC-based access control.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed pad for thermal dissipation in automotive environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K342EHT0VPBSR, the S32K322EHT0VPBSR reduces safety certification scope and BOM cost while retaining identical pinout and software compatibility; versus S32K312EHT0VPBSR, it delivers 33% higher CPU throughput, deterministic dual-core scheduling, and critical networking interfaces for next-generation E/E architectures.

Availability

S32K322EHT0VPBSR 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 across extended product lifecycles.

Supply support for S32K322EHT0VPBSR 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 family is designed for ASIL-B and ASIL-D automotive control applications-including chassis, powertrain, and domain controllers-with emphasis on real-time performance, security, and scalable multicore architecture.

FAQ

What is the maximum operating frequency of the S32K322EHT0VPBSR?

The S32K322EHT0VPBSR features two independent Arm Cortex-M7 cores, each capable of operating at up to 160 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 silicon characterization confirming timing closure under worst-case process/voltage/temperature corners. The S32K322EHT0VPBSR achieves this performance using optimized clock tree design and zero-wait TCM memory.

Does the S32K322EHT0VPBSR support CAN FD?

Yes, the S32K322EHT0VPBSR integrates two FlexCAN modules, both fully supporting CAN FD protocol with bit rates up to 5 Mbps and payload lengths up to 64 bytes. Each module includes dedicated message RAM, hardware acceptance filtering, and built-in CRC calculation aligned with ISO 11898-1:2015. The S32K322EHT0VPBSR's CAN FD implementation is validated for automotive ECU interoperability and meets OEM CAN FD physical layer timing requirements.

What package type is used for the S32K322EHT0VPBSR?

The S32K322EHT0VPBSR is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad. This package supports high-density automotive PCB layouts and provides effective thermal dissipation for sustained 160 MHz dual-core operation at 125 °C ambient. Pin-compatible variants exist in HDQFP172 and MAPBGA289, but the S32K322EHT0VPBSR specifically uses MAPBGA437 per NXP's official part numbering and packaging documentation.

Is Ethernet functionality included in the S32K322EHT0VPBSR?

Yes, the S32K322EHT0VPBSR includes a single 100 Mbps Ethernet MAC with AVB and TSN support, compliant with IEEE 802.1AS (gPTP) and 802.1Qbv (time-aware shaper). It operates in RMII mode and requires an external PHY for physical layer connectivity. The Ethernet interface is integrated into the Xbar fabric with configurable DMA channels and hardware timestamping, enabling deterministic network timing essential for automotive domain controllers. This capability is present in the S32K322EHT0VPBSR and confirmed in Figure 4 of the S32K3xx Data Sheet Rev. 14.

What safety certifications apply to the S32K322EHT0VPBSR?

The S32K322EHT0VPBSR is certified to ASIL-B per ISO 26262:2018, with integrated safety mechanisms including dual SWT timers, FCCU fault collection unit, ECC on all memories, EDC on data paths, CRC acceleration, and XRDC-based memory access control. It supports end-to-end safety workflows with FMEDA reports, safety manuals, and driver libraries qualified for ASIL-B. The S32K322EHT0VPBSR does not support ASIL-D; that level requires the lockstep variant S32K342EHT0VPBSR.