NXP Semiconductors S32K314EHT1VPBST

Overview

S32K314EHT1VPBST from NXP Semiconductors is an ASIL-B qualified automotive MCU featuring a single Arm Cortex-M7 core operating up to 160 MHz, 4 MB ECC-protected program flash, 512 KB SRAM with ECC (including 192 KB TCM), and support for CAN FD, Ethernet AVB/TSN, QuadSPI, and triple 12-bit ADCs. It targets body control modules, gateway ECUs, and chassis domain controllers requiring high-integrity real-time processing in harsh environments.

For engineers reviewing the S32K314EHT1VPBST datasheet, S32K314EHT1VPBST pinout, S32K314EHT1VPBST application, or S32K314EHT1VPBST equivalent, key selection criteria include its 160 MHz M7 performance, ASIL-B safety certification, 4 MB flash/512 KB RAM memory configuration, QuadSPI interface for external memory expansion, and dual-core-capable pin-compatible footprint across the S32K3xx family.

Technical Context

The S32K314EHT1VPBST implements a single Arm Cortex-M7 core with FPU and DSP extensions, executing at up to 160 MHz with zero-wait I/D-TCM and cache to minimize latency in motor control and safety-critical loops. Its memory subsystem includes ECC on all internal memories and RWW A/B swap capability for robust OTA updates.

Timing and communication are tightly integrated: three eMIOS modules provide 72 timer channels for PWM, capture, and compare; six LPSPI, two LPI2C, sixteen LPUART, and six FlexCAN modules (all CAN FD-capable) enable complex vehicle networking; and the BCTU enables deterministic cross-triggering between ADCs and timers.

Key Specifications

Pinout & Package

Package: MAPBGA437 (17 × 17 mm, 0.8 mm pitch) with exposed thermal pad (EP). Pin count: 437 terminals. Compatible with S32K3xx family layout scalability - same footprint used across S32K314/S32K324/S32K344 variants for migration flexibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S32K314EHT1VPBST, the S32K324EHT1VPBST adds computational throughput via dual independent cores without changing PCB layout, while the S32K344EHT1VPBST replaces functional safety assurance with hardware lockstep and ASIL-D qualification - both share identical peripheral sets and memory maps but differ fundamentally in safety architecture and core execution model.

Availability

S32K314EHT1VPBST is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateway ECUs, chassis domain controllers, and electric power steering support systems requiring stable component supply across extended production lifecycles.

Supply support for S32K314EHT1VPBST 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 microcontrollers and radar technology.

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

FAQ

What is the maximum operating frequency of the S32K314EHT1VPBST?

The S32K314EHT1VPBST features a single Arm Cortex-M7 core rated for operation up to 160 MHz. This frequency is achievable across the full −40 °C to +125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, with performance sustained by zero-wait I/D-TCM and integrated cache. The S32K314EHT1VPBST does not support higher frequencies like the 240 MHz variants found in S32K328/S32K348.

Does the S32K314EHT1VPBST support CAN FD?

Yes, the S32K314EHT1VPBST integrates six FlexCAN modules, each fully compliant with CAN FD (Controller Area Network Flexible Data-Rate) protocol, supporting data rates up to 5 Mbps and payloads up to 64 bytes. All six channels implement ISO 11898-1:2015 and support automatic bit-rate switching, loopback self-test, and error confinement - confirmed in the S32K3xx Data Sheet Rev. 14.

What safety certifications apply to the S32K314EHT1VPBST?

The S32K314EHT1VPBST is certified to ISO 26262 ASIL-B at the device level. It includes hardware safety mechanisms such as ECC on all memories, Error Detection Code (EDC) on data paths, dual SWT timers, centralized error collection via FCCU, and XRDC-based memory access control. It does not meet ASIL-D requirements - those are fulfilled by the S32K344EHT1VPBST variant.

Which package type is used for the S32K314EHT1VPBST?

The S32K314EHT1VPBST is supplied in a MAPBGA437 package (17 mm × 17 mm, 0.8 mm pitch) with an exposed thermal pad (EP). This package is shared across multiple S32K3xx variants including S32K324 and S32K344, enabling pin-compatible migration paths. The 437-terminal layout supports high I/O density required for automotive gateway and chassis applications.

Does the S32K314EHT1VPBST include hardware encryption acceleration?

Yes, the S32K314EHT1VPBST integrates the Hardware Security Engine (HSE-B), which provides dedicated accelerators for AES-256, RSA-4096, and ECC-521 cryptographic operations. It supports secure boot, key provisioning, and encrypted firmware updates. Note that advanced features like SHA-3 or post-quantum crypto are not included - those appear only in higher-tier S32K388/S32K389 devices.