NXP Semiconductors S32K322NHT0VPBST

Overview

S32K322NHT0VPBST 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 (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 body control and domain controller applications in electric powertrain systems.

For engineers reviewing the S32K322NHT0VPBST datasheet, S32K322NHT0VPBST pinout, S32K322NHT0VPBST application, or S32K322NHT0VPBST equivalent, key selection criteria include dual-core deterministic real-time performance, integrated safety mechanisms (ECC, SWT, XRDC), CAN FD + Ethernet connectivity, and MAPBGA437 package compatibility with automotive PCB layout constraints.

Technical Context

The S32K322NHT0VPBST implements two independent Arm Cortex-M7 cores-each with FPU, DSP, I/D-cache, and zero-wait TCM-enabling lockstep-optional asymmetric processing for safety-critical and real-time tasks. 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 SPLL-driven clock tree (FXOSC 8–40 MHz, FIRC 48 MHz), dual FlexCAN with CAN FD, QuadSPI (4-bit, 480 Mbps), 100 Mbps Ethernet with AVB/TSN, and dual SAI modules. Safety architecture includes FCCU, CMU, STCU2, and centralized error detection aligned to ISO 26262 ASIL-B requirements.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch, exposed pad). Pin count and signal assignment align with S32K3xx family pin-compatibility across memory and peripheral variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K322NHT0VPBST, S32K342NHT0VPBST adds lockstep execution and ASIL-D certification at higher cost and power, while S32K312NHT0VPBST reduces integration and performance to meet entry-level ASIL-B requirements-making S32K322NHT0VPBST the optimal balance of dual-core capability, networking, and safety for mid-tier domain controllers.

Availability

S32K322NHT0VPBST is available at Aetrix Electronics and suitable for automotive body control modules, electric power steering systems, vehicle domain gateways, and advanced battery management systems requiring stable component supply across extended production lifecycles.

Supply support for S32K322NHT0VPBST 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 MCU design.

The S32K3xx product line was developed to extend NXP's automotive MCU portfolio with scalable Arm Cortex-M7 cores, ASIL-B/D safety certification, and integrated networking-targeting next-generation zonal architectures and software-defined vehicles.

FAQ

What is the maximum operating frequency of the S32K322NHT0VPBST?

The S32K322NHT0VPBST features two independent Arm Cortex-M7 cores, each capable of operating at up to 160 MHz. This frequency is achieved using the System PLL driven by the 8–40 MHz Fast External Oscillator (FXOSC) or the 48 MHz Fast Internal RC oscillator (FIRC), with voltage and temperature derating applied per the datasheet's electrical characteristics table. The S32K322NHT0VPBST maintains full peripheral functionality-including CAN FD, Ethernet, and QuadSPI-at this maximum frequency.

Does the S32K322NHT0VPBST support CAN FD, and how many channels are available?

Yes, the S32K322NHT0VPBST integrates two fully independent FlexCAN modules, both supporting ISO 11898-1:2015 CAN FD with bit rates up to 5 Mbps and payloads up to 64 bytes. Each module includes dedicated message RAM, acceptance filtering, and hardware timestamping-enabling concurrent high-speed communication on separate CAN FD networks without CPU intervention. The S32K322NHT0VPBST does not require external transceivers for basic CAN FD operation.

What package type and pin count does the S32K322NHT0VPBST use?

The S32K322NHT0VPBST is packaged in a MAPBGA437 (17 mm × 17 mm, 0.8 mm pitch) with an exposed thermal pad. This package provides 437 I/O terminals, including dedicated analog supplies, high-speed Ethernet and QuadSPI signals, and configurable GPIOs with wakeup and interrupt capability. Pinout is compatible with other S32K3xx devices in the same package option, enabling hardware reuse across memory/performance variants.

Is the S32K322NHT0VPBST qualified for automotive temperature ranges?

Yes, the S32K322NHT0VPBST is qualified for operation across −40 °C to +125 °C ambient temperature in all power modes (RUN, STOP, VLPR), meeting AEC-Q100 Grade 1 requirements. This qualification covers full functionality of its dual Cortex-M7 cores, ECC-protected memories, FlexCAN, Ethernet MAC, and analog peripherals-including ADC linearity and comparator response-under thermal stress conditions typical of engine bay and transmission control environments.

Does the S32K322NHT0VPBST include hardware security features?

The S32K322NHT0VPBST includes the Hardware Security Engine (HSE_B), supporting AES-128/256 encryption acceleration, SHA-256 hashing, and RSA-2048/3072 signature verification. It also provides a 64-bit unique identification number, secure boot ROM with immutable root-of-trust, and lifecycle management controls. While HSE_B is present, note that advanced cryptographic accelerators (e.g., ECC-521, RSA-4096) are reserved for S32K388/K389 variants per the datasheet revision 14 feature matrix.