NXP Semiconductors S32K322NHT0VPASR

Overview

S32K322NHT0VPASR from NXP Semiconductors is a 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 ASIL-B functional safety compliance. It integrates dual FlexCAN modules with CAN FD support, QuadSPI interface (480 Mbps), and Ethernet (100 Mbps AVB/TSN) for vehicle networking applications.

For engineers reviewing the S32K322NHT0VPASR datasheet, S32K322NHT0VPASR pinout, S32K322NHT0VPASR application, or S32K322NHT0VPASR equivalent, key selection criteria include dual-core real-time determinism, on-chip motor control subsystem offloading, hardware security engine (HSE_B), and support for OTA updates via RWW/A-B swap in harsh automotive environments.

Technical Context

The S32K322NHT0VPASR implements two independent Arm Cortex-M7 cores at 160 MHz each, each with FPU, DSP, I-cache, D-cache, and zero-wait I/D-TCM for deterministic real-time control. Its memory subsystem includes ECC-protected 2 MB flash and 256 KB SRAM with 192 KB TCM optimized for fast control loops.

It features a 64-bit crossbar fabric, dual FlexCAN with CAN FD, QuadSPI (4-bit, 480 Mbps), 100 Mbps Ethernet with AVB/TSN, and integrated BCTU for ADC/timer cross-triggering - all managed under ASIL-B safety architecture with centralized error detection and HSE_B security acceleration.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed pad (EP) for thermal management in high-power automotive operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K342NHT0VPASR, the S32K322NHT0VPASR reduces safety certification scope and BOM cost while retaining dual-core performance; versus S32K312NHT0VPASR, it adds critical domain-controller capabilities - Ethernet, QuadSPI, and dual FlexCAN - without increasing package size or thermal footprint.

Availability

S32K322NHT0VPASR is available at Aetrix Electronics and suitable for electric power steering, brake-by-wire control units, vehicle domain controllers, onboard charger control, and advanced body electronics requiring stable component supply across automotive production lifecycles.

Supply support for S32K322NHT0VPASR 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, IoT, and communication infrastructure solutions, with deep expertise in secure, safety-certified microcontrollers.

The S32K3xx series is designed specifically for next-generation automotive electronic control units, emphasizing ASIL-B/D compliance, hardware-accelerated security, and scalable multicore architectures for domain consolidation.

FAQ

What is the maximum operating frequency of the S32K322NHT0VPASR?

The S32K322NHT0VPASR 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 2.97–5.5 V supply voltage, with on-chip PLL and clock monitoring ensuring stable timing under automotive transients. The S32K322NHT0VPASR maintains this performance without thermal throttling in its MAPBGA437 package with exposed pad.

Does the S32K322NHT0VPASR support CAN FD, and how many channels are available?

Yes, the S32K322NHT0VPASR integrates two independent FlexCAN modules, each supporting CAN FD with bit rates up to 5 Mbps. Both modules feature dedicated message RAM, hardware bus-off recovery, and programmable bit timing - enabling simultaneous high-bandwidth communication with ADAS ECUs and infotainment gateways. The S32K322NHT0VPASR does not require external transceivers for physical layer interfacing.

What safety certifications apply to the S32K322NHT0VPASR?

The S32K322NHT0VPASR is certified to ISO 26262 ASIL-B at the device level, with integrated safety mechanisms including FCCU, dual SWT timers, CRC module, MPU, and centralized error collection via EIM/ERM. It supports end-to-end safety workflows for automotive ECUs but does not meet ASIL-D requirements - those are addressed by the pin-compatible S32K342NHT0VPASR variant. The S32K322NHT0VPASR's safety manual and FMEDA report are provided by NXP.

Which package type is used for the S32K322NHT0VPASR, and what are its thermal characteristics?

The S32K322NHT0VPASR uses the MAPBGA437 package (17 mm × 17 mm, 0.8 mm pitch) with an exposed thermal pad (EP) on the underside. This package achieves a junction-to-board thermal resistance (ψ_JB) of 3.2 °C/W and junction-to-case (ψ_JC) of 1.8 °C/W under standard JEDEC PCB conditions, enabling sustained 160 MHz dual-core operation at 125 °C ambient. The S32K322NHT0VPASR requires solder paste stencil design per NXP AN12347 for optimal thermal transfer.

Does the S32K322NHT0VPASR include hardware security features, and which algorithms are accelerated?

Yes, the S32K322NHT0VPASR includes the HSE_B (Hardware Security Engine – Basic) module, which accelerates AES-256 encryption/decryption, RSA-4096 signing/verification, and ECC-521 key exchange. It also supports TRNG/PRNG, secure boot with certificate chain validation, and firmware over-the-air (OTA) update authentication. The S32K322NHT0VPASR's HSE_B is firmware-upgradable and includes side-channel attack countermeasures aligned with EVITA Full requirements.