NXP Semiconductors S32K322NHT0MPASR

Overview

S32K322NHT0MPASR 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 12-bit ADCs with 48 total analog inputs. It integrates two FlexCAN modules with CAN FD support, QuadSPI interface for external memory expansion, and Ethernet (100 Mbps AVB/TSN) for vehicle networking applications.

For engineers reviewing the S32K322NHT0MPASR datasheet, S32K322NHT0MPASR pinout, S32K322NHT0MPASR application, or S32K322NHT0MPASR equivalent, key selection criteria include dual-core real-time determinism, ASIL-B safety compliance, integrated motor control subsystem offloading, and package options including MAPBGA437 for high I/O density in body control and gateway ECUs.

Technical Context

The S32K322NHT0MPASR implements two independent Arm Cortex-M7 cores at 160 MHz each, each with FPU, DSP, and separate I/D caches, enabling deterministic task partitioning across safety-critical and application layers. Its memory subsystem includes ECC-protected 2 MB flash and 256 KB SRAM with 192 KB tightly coupled memory (TCM) for zero-wait-state CPU access.

Timing and control are managed via dual eMIOS modules (up to 48 timer channels), BCTU for cross-triggered ADC/timer synchronization, and TRGMUX for flexible event routing. Safety architecture includes FCCU, SWT timers, CRC module, and XRDC-based memory protection-fully aligned with ISO 26262 ASIL-B requirements.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad - optimized for thermal dissipation in compact automotive ECU designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K322NHT0MPASR, the S32K342NHT0MPASR provides full ASIL-D compliance via lockstep execution and additional self-test mechanisms, while the S32K312NHT0MPASR trades dual-core performance and Ethernet for lower BOM cost and simpler certification-making all three suitable for tiered automotive platform strategies.

Availability

S32K322NHT0MPASR is available at Aetrix Electronics and suitable for body control modules, vehicle gateways, electric power steering systems, and advanced chassis controllers requiring stable component supply across extended automotive production lifecycles.

Supply support for S32K322NHT0MPASR 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 MCUs.

The S32K3xx product line was designed specifically for next-generation automotive domain controllers and zonal architectures, emphasizing ASIL-B/D compliance, real-time determinism, and scalable memory/peripheral integration across single-, dual-, and triple-core configurations.

FAQ

What is the maximum operating frequency of the S32K322NHT0MPASR?

The S32K322NHT0MPASR features two independent Arm Cortex-M7 cores, each operating at up to 160 MHz. This frequency is supported across the full industrial temperature range (-40 °C to +125 °C) and supply voltage range (2.97 V to 5.5 V). The S32K322NHT0MPASR achieves this performance with integrated I/D caches and TCM memory to minimize wait states and sustain peak throughput in real-time control loops.

Does the S32K322NHT0MPASR support CAN FD?

Yes, the S32K322NHT0MPASR includes 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 supports programmable bit timing, automatic retransmission, and built-in CRC protection. The S32K322NHT0MPASR also provides dedicated CAN FD interrupt vectors and DMA-assisted message buffering for high-throughput network handling.

What package type is used for the S32K322NHT0MPASR?

The S32K322NHT0MPASR is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad. This package supports 320 GPIO pins and is optimized for thermal performance in automotive under-hood applications. Pin compatibility is maintained across the S32K3xx family for MAPBGA437 variants, enabling hardware reuse across different memory/performance tiers.

Is Ethernet functionality included in the S32K322NHT0MPASR?

Yes, the S32K322NHT0MPASR integrates a 100 Mbps Ethernet MAC with AVB (Audio Video Bridging) and TSN (Time-Sensitive Networking) support. It includes RMII interface pins, IEEE 1588 timestamping hardware, and integrated DMA for zero-copy packet processing. The S32K322NHT0MPASR does not include a PHY; an external 100BASE-TX PHY must be used for physical layer connectivity.

What safety certifications apply to the S32K322NHT0MPASR?

The S32K322NHT0MPASR is certified to ISO 26262 ASIL-B at the device level. Its safety architecture includes hardware error detection (ECC on all memories, EDC on data paths), dual SWT timers, FCCU fault collection unit, CRC module, and XRDC-based memory access control. These features enable systematic fault mitigation without requiring external safety monitors in ASIL-B applications such as body control and gateway modules.