NXP Semiconductors S32K312NHT0MPAIT

Overview

S32K312NHT0MPAIT from NXP Semiconductors is an ASIL-B automotive-qualified Arm® Cortex-M7 microcontroller with 2 MB program flash, 256 KB SRAM (including 96 KB TCM), and operation across -40 °C to 125 °C. It integrates dual FlexCAN modules with CAN FD support, three 12-bit ADCs (24-channel each), and a 32-bit RTC with autonomous periodic interrupt-targeting body control modules and gateway ECUs in harsh electrical environments.

For engineers reviewing the S32K312NHT0MPAIT datasheet, S32K312NHT0MPAIT pinout, S32K312NHT0MPAIT application, or S32K312NHT0MPAIT equivalent, key selection considerations include its 2 MB ECC-protected flash memory, 120 MHz Cortex-M7 core with FPU/DSP, quad SPI interface, and support for up to 320 GPIO pins with wakeup and interrupt capability.

Technical Context

The S32K312NHT0MPAIT implements a single-core Arm Cortex-M7 CPU running at up to 120 MHz, compliant with Armv7 and Thumb®-2 ISA, and includes a Single Precision Floating Point Unit (FPU) and integrated Digital Signal Processor (DSP). Its memory subsystem features ECC-protected 2 MB program flash, 256 KB SRAM (with 96 KB tightly coupled memory), and instruction/data caches to minimize latency in real-time control loops.

Timing and safety are addressed via three eMIOS modules (72 timer channels), BCTU for cross-triggering between ADCs and timers, two SWT watchdogs, and hardware error detection on all memories (ECC/EDC/CRC). The device supports multiple clock sources-including FXOSC (8–40 MHz), FIRC (48 MHz), SIRC/SXOSC (32 kHz), and SPLL-with PMC-managed RUN/STANDBY power modes and peripheral-specific clock gating.

Key Specifications

Pinout & Package

Package: HDQFP100 (100-pin Heat Sink Quad Flat Package) with exposed thermal pad for enhanced thermal dissipation in automotive applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K311NHT0MPAIT, the S32K312NHT0MPAIT delivers 100% more flash and 100% more SRAM while maintaining identical pin compatibility and safety architecture; versus S32K314NHT0MPAIT, it trades QuadSPI/Ethernet expansion for lower cost and power in memory-constrained gateway or BCM roles.

Availability

S32K312NHT0MPAIT is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, electric power steering support units, and advanced lighting control systems requiring stable component supply, long lifecycle commitment, and ASIL-B-certified silicon.

Supply support for S32K312NHT0MPAIT 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, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions with deep functional safety expertise.

The S32K3xx product line extends NXP's automotive MCU portfolio with Arm Cortex-M7 cores, targeting ASIL-B/D applications in body electronics, domain controllers, and electrification systems where real-time performance, security, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the S32K312NHT0MPAIT?

The S32K312NHT0MPAIT features an Arm Cortex-M7 core rated for up to 120 MHz operation. This frequency is supported across the full -40 °C to 125 °C ambient temperature range and 2.97–5.5 V supply voltage, with internal PLL and clock management ensuring stable timing under transient conditions. The S32K312NHT0MPAIT does not support higher frequencies like the 160 MHz or 240 MHz variants found in S32K32x/S32K34x series.

Does the S32K312NHT0MPAIT support CAN FD?

Yes, the S32K312NHT0MPAIT includes two FlexCAN modules, both fully supporting CAN FD protocol with bit rates up to 5 Mbps and payload lengths up to 64 bytes. This capability is confirmed in the S32K3xx Data Sheet Rev. 14 (April 2026), Figure 3 block diagram, and functional specification tables for FlexCAN peripheral configuration.

What package type is used for the S32K312NHT0MPAIT?

The S32K312NHT0MPAIT is offered in the HDQFP100 package-a 100-pin heat sink quad flat package with exposed thermal pad. This package is explicitly listed in the "I/O and package" section of the S32K3xx Data Sheet and matches the mechanical drawings and thermal characteristics defined for S32K312 devices in the family documentation.

Is the S32K312NHT0MPAIT qualified for automotive applications?

Yes, the S32K312NHT0MPAIT is AEC-Q100 Grade 1 qualified and certified to ASIL-B per ISO 26262. Its design includes hardware safety mechanisms such as ECC on all memories, dual SWT timers, centralized error detection (FCCU), and memory protection unit (MPU)-all verified and documented in the S32K3xx Functional Safety Manual and Safety Case Report.

Does the S32K312NHT0MPAIT include hardware encryption acceleration?

Yes, the S32K312NHT0MPAIT integrates the Hardware Security Engine (HSE-B), which provides hardware-accelerated AES-128/256, SHA-256, and RSA-2048 operations. Firmware for HSE-B is upgradable, and the engine includes side-channel attack protections aligned with EVITA Full security goals, as specified in the S32K3xx Security Reference Manual.