NXP Semiconductors S32K322EHT0MPAIT

Overview

S32K322EHT0MPAIT from NXP Semiconductors is an ASIL-B dual-core Arm® Cortex-M7 automotive microcontroller operating up to 160 MHz, featuring 2 MB program flash with ECC, 256 KB SRAM (including 192 KB TCM), and dual FlexCAN modules with CAN FD support - deployed in body control modules requiring real-time deterministic response and functional safety compliance.

For engineers reviewing the S32K322EHT0MPAIT datasheet, S32K322EHT0MPAIT pinout, S32K322EHT0MPAIT application, or S32K322EHT0MPAIT equivalent, key selection criteria include dual-core lockstep readiness, QuadSPI interface for external memory expansion, Ethernet AVB/TSN capability, and ASIL-B-certified safety architecture for automotive domain controllers.

Technical Context

The S32K322EHT0MPAIT implements two independent Arm Cortex-M7 cores at 160 MHz each, each with FPU, DSP, and separate I/D caches, coordinated via a 64-bit crossbar fabric. It integrates BCTU for ADC/timer cross-triggering and LCU for hardware-based logic sequencing without CPU intervention.

Its safety architecture includes FCCU, SWT timers, ECC on all memories, EDC on data paths, and XRDC-based master access protection - all aligned to ISO 26262 ASIL-B requirements. The device supports RWW flash and A/B swap for secure OTA updates.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed thermal pad - optimized for high-power automotive operation and PCB-level thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K312EHT0MPAIT, the S32K322EHT0MPAIT adds dual-core determinism and Ethernet/QuadSPI for gateway roles; compared with S32K342EHT0MPAIT, it trades lockstep assurance for higher flexibility in asymmetric core utilization while retaining ASIL-B compliance.

Availability

S32K322EHT0MPAIT is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor hubs, electric power steering host controllers, and secure vehicle gateways requiring stable component supply across extended product lifecycles.

Supply support for S32K322EHT0MPAIT 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 applications.

The S32K3xx family is designed specifically for automotive domain controllers requiring ASIL-B/D functional safety, real-time deterministic performance, and scalable security - extending the S32K1xx portfolio with Cortex-M7 architecture and advanced peripheral integration.

FAQ

What is the maximum operating frequency of the S32K322EHT0MPAIT?

The S32K322EHT0MPAIT features two independent Arm Cortex-M7 cores, each 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 internal PLL and clock gating ensuring stable timing under dynamic load conditions. The S32K322EHT0MPAIT maintains this performance while delivering ECC-protected memory and ASIL-B safety compliance.

Does the S32K322EHT0MPAIT support CAN FD?

Yes, the S32K322EHT0MPAIT integrates up to four FlexCAN modules, each fully supporting CAN FD protocol with bit rates up to 5 Mbps and payload lengths up to 64 bytes. All CAN FD channels implement ISO 11898-1:2015 compliance, including transceiver-independent timing recovery and flexible data rate arbitration. The S32K322EHT0MPAIT uses these interfaces for high-bandwidth vehicle networking in body control and gateway applications.

What package type is used for the S32K322EHT0MPAIT?

The S32K322EHT0MPAIT 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 enhanced thermal dissipation for sustained operation at 160 MHz under 125 °C ambient conditions. Pin compatibility is maintained across the S32K3xx family for MAPBGA437 variants, enabling footprint reuse in scalable designs.

Is Ethernet supported on the S32K322EHT0MPAIT?

Yes, the S32K322EHT0MPAIT includes one 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 supports hardware timestamping, priority-based queuing, and frame preemption - enabling deterministic networked control in domain-centralized architectures. The S32K322EHT0MPAIT does not integrate a PHY; external PHY connection is required.

What safety certifications apply to the S32K322EHT0MPAIT?

The S32K322EHT0MPAIT is certified to ISO 26262 ASIL-B at the device level, with integrated safety mechanisms including ECC on all memories, EDC on data paths, dual SWT timers, FCCU fault collection, and XRDC-based access control. Its safety manual and FMEDA report are provided by NXP. The S32K322EHT0MPAIT meets ASIL-B requirements for automotive body control, gateway, and ADAS sensor aggregation - but not ASIL-D, which requires lockstep configuration as in S32K342EHT0MPAIT.