NXP Semiconductors S32K312NHT0MPAST

Overview

S32K312NHT0MPAST from NXP Semiconductors is an ASIL-B automotive-qualified Arm® Cortex-M7 microcontroller with 2 MB program flash, 256 KB SRAM (including 192 KB TCM), and operation across -40 °C to 125 °C. It integrates dual FlexCAN modules with CAN FD support, up to 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 S32K312NHT0MPAST datasheet, S32K312NHT0MPAST pinout, S32K312NHT0MPAST application, or S32K312NHT0MPAST equivalent, key selection considerations include its 2 MB ECC-protected flash, 192 KB tightly coupled memory for deterministic control loops, dual CAN FD interfaces, and MAPBGA257 package compatibility with scalable S32K3xx migration paths.

Technical Context

The S32K312NHT0MPAST implements a single-core Arm Cortex-M7 CPU running at up to 120 MHz, featuring integrated DSP instructions, single-precision FPU, and configurable NVIC. Its memory subsystem includes instruction and data caches plus ECC protection on all on-chip memories-flash, D-flash, and SRAM-including 192 KB of TCM RAM optimized for zero-wait-state real-time execution.

Timing and control are managed via two eMIOS modules (up to 48 timer channels), BCTU for cross-triggering between ADCs and timers, and TRGMUX for flexible signal routing. Power management uses PMC with RUN/STANDBY modes and peripheral-specific clock gating, enabling low-power operation while retaining wakeup capability on up to 60 GPIO pins.

Key Specifications

Pinout & Package

Package: MAPBGA257 (13 × 13 mm, 0.8 mm pitch) with exposed pad for thermal dissipation. Pin count and I/O configuration align with S32K3xx family scalability-supports up to 320 GPIO, 60 wakeup-capable pins, and 32 interrupt-capable pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K311NHT0MPAST, the S32K312NHT0MPAST provides double flash and SRAM capacity for larger firmware and real-time buffers; versus S32K314NHT0MPAST, it omits QuadSPI and third ADC bank-reducing BOM cost and PCB complexity where those features are unused.

Availability

S32K312NHT0MPAST is available at Aetrix Electronics and suitable for automotive body control modules, gateway ECUs, and chassis domain controllers requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.

Supply support for S32K312NHT0MPAST 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 secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional safety and automotive-grade MCUs.

The S32K3xx product line extends NXP's automotive MCU portfolio with Arm Cortex-M7 cores, targeting ASIL-B/D applications such as body electronics, gateways, and chassis control-emphasizing scalability, security, and real-time determinism.

FAQ

What is the maximum operating frequency of the S32K312NHT0MPAST?

The S32K312NHT0MPAST features a single Arm Cortex-M7 core rated for up to 120 MHz operation. This frequency is validated across the full -40 °C to 125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, ensuring deterministic real-time performance in automotive environments. The S32K312NHT0MPAST does not support the 160 MHz or 240 MHz variants found in higher-tier S32K3xx devices like the S32K322 or S32K328.

Does the S32K312NHT0MPAST support CAN FD?

Yes, the S32K312NHT0MPAST integrates two FlexCAN modules, both fully supporting CAN FD (Flexible Data-Rate) with bit rates up to 5 Mbps. Each module includes dedicated message RAM, hardware filtering, and error counters compliant with ISO 11898-1:2015. The S32K312NHT0MPAST implements CAN FD without requiring external transceivers-those remain external but are directly driven by the MCU's differential CAN TX/RX pins.

What package type is used for the S32K312NHT0MPAST?

The S32K312NHT0MPAST is packaged in a MAPBGA257 (13 mm × 13 mm, 0.8 mm pitch) with exposed pad. This package is explicitly listed in the S32K3xx datasheet for the S32K312 variant and shares pinout compatibility with other S32K3xx family members in the same footprint. It supports reflow soldering and provides thermal performance suitable for under-hood automotive applications.

How much TCM RAM does the S32K312NHT0MPAST include?

The S32K312NHT0MPAST includes 192 KB of tightly coupled memory (TCM) within its 256 KB total SRAM allocation. This TCM is split into ITCM and DTCM and operates at zero wait states-critical for time-critical code execution and low-latency data access in control loops. Unlike general SRAM, TCM is not cacheable and is directly mapped to the CPU bus, ensuring predictable timing behavior required for ASIL-B applications.

Is the S32K312NHT0MPAST qualified to AEC-Q100 standards?

Yes, the S32K312NHT0MPAST is qualified to AEC-Q100 Grade 1, covering operation from -40 °C to 125 °C ambient temperature. This qualification applies to the full device-including core logic, memory, analog peripherals, and I/O-verified through stress testing, reliability characterization, and failure analysis per the AEC-Q100 standard. The S32K312NHT0MPAST also meets ISO 26262 ASIL-B requirements for functional safety.