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NXP Semiconductors S32K312NHT0VPBST
- Part No.:
- S32K312NHT0VPBST
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 172-QFP
- Datasheet:
-
S32K312NHT0VPBST.pdf
- Description:
- S32K312, 2MB FLASH, ARM M7
- Quantity:
- Payment:
- Shipping:
Inventory:3,838
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Product details
Overview
S32K312NHT0VPBST from NXP Semiconductors is an ASIL-B certified automotive-grade 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-temperature vehicle domains.
For engineers reviewing the S32K312NHT0VPBST datasheet, S32K312NHT0VPBST pinout, S32K312NHT0VPBST application, or S32K312NHT0VPBST equivalent, key selection criteria include its 120 MHz Cortex-M7 core with FPU/DSP, ECC-protected memory subsystem, QuadSPI interface (up to 480 Mbps), and support for functional safety development per ISO 26262 ASIL-B requirements.
Technical Context
The S32K312NHT0VPBST implements a single-core Arm Cortex-M7 CPU running at up to 120 MHz, featuring integrated Single Precision FPU, DSP extensions, and configurable NVIC. Its memory architecture includes 2 MB on-chip flash with ECC, 256 KB SRAM (192 KB TCM + 64 KB general), and instruction/data caches to minimize latency in real-time control loops.
Timing and communication are managed via three eMIOS modules (72 timer channels), BCTU for cross-triggering between ADC and timers, two LPI2C, four LPSPI, four LPUART, and two FlexCAN interfaces-all supporting CAN FD and DMA. Power management uses PMC with RUN/STANDBY modes and peripheral-specific clock gating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 @ 120 MHz with FPU, DSP, and Thumb-2 ISA - enables deterministic real-time motor control and signal processing |
| Flash Memory | 2 MB program flash with ECC - supports A/B swap for robust OTA updates and fault-tolerant firmware execution |
| SRAM | 256 KB total (192 KB TCM + 64 KB general) with ECC - TCM ensures zero-wait-state access for time-critical ISR and control algorithms |
| Analog Peripherals | Three 12-bit ADCs (24-channel each), one TempSense, three comparators with internal 8-bit DAC - enables multi-sensor monitoring in battery management and HVAC systems |
| Communication Interfaces | Two FlexCAN (CAN FD), four LPUART, four LPSPI, two LPI2C, QuadSPI (480 Mbps) - meets automotive gateway and domain controller I/O density and protocol diversity needs |
| Functional Safety | ISO 26262 ASIL-B compliant with ECC on all memories, CRC module, SWT, XRDC, and HSE-B security engine - satisfies safety-critical ECU certification requirements |
| Operating Range | -40 °C to 125 °C ambient, 2.97 V to 5.5 V supply - qualified for under-hood and powertrain-adjacent applications |
Pinout & Package
Package: HDQFP172 with exposed pad (EP). This thermally enhanced 172-pin quad flat package supports high-density automotive PCB layouts while enabling efficient heat dissipation in sealed enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog Power Supply | 3.3 V ±10% dedicated analog rail for ADC/CMP reference stability and noise immunity |
| VSSA | Analog Ground | Isolated ground plane for analog circuitry to prevent digital switching noise coupling into sensitive measurements |
| RTC_CLKIN | Real-Time Clock Input | Accepts 32.768 kHz external crystal or oscillator for autonomous low-power timekeeping during STANDBY mode |
| CAN0_TX / CAN0_RX | FlexCAN Channel 0 Differential I/O | High-speed CAN FD physical layer interface compliant with ISO 11898-2, supporting data rates up to 5 Mbps |
| QSPI_DATA0–QSPI_DATA3 | QuadSPI Data Lines | 4-bit parallel data bus enabling 480 Mbps external flash/RAM expansion with hardware address translation |
| SWD_IO / SWD_CLK | Serial Wire Debug Interface | 2-pin debug port supporting full JTAG/SWD functionality including trace, breakpoints, and memory patching |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-B Functional Safety Certification | Integrated safety mechanisms (ECC, CRC, SWT, XRDC) validated per ISO 26262 Part 5, enabling use in brake-by-wire and steering assist without external safety monitor |
| On-Chip Motor Control Subsystem | eMIOS timers + BCTU + LCU enable hardware-accelerated PWM generation, dead-time insertion, and sensorless commutation logic offloading CPU cycles |
| OTA-Ready Flash Architecture | RWW (Read-While-Write) capability with A/B swap allows seamless firmware updates without system reset or interruption of real-time tasks |
| Hardware Security Engine (HSE-B) | Accelerates AES-128/256, SHA-256, and RSA-2048 operations; includes secure boot ROM and lifecycle management for secure key provisioning and firmware authentication |
| Flexible Low-Power Operation | PMC supports RUN, STANDBY, and multiple STOP modes with wakeup on 60 GPIO pins, RTC alarm, or CAN bus activity - extends battery life in always-on ECUs |
Applications
| Body Control Module (BCM) | Power Distribution Unit (PDU) |
|---|---|
Use Scenario: Centralized control of lighting, door locks, window lifts, and seat position in modern vehicles. IC Role / Device Role / Timing Role: Main application MCU executing real-time control logic, managing LIN/UART communication with slave nodes, and monitoring analog sensors (e.g., current sense, temperature). Use Value: 256 KB SRAM with 192 KB TCM enables concurrent execution of multiple control loops; dual FlexCAN handles chassis network traffic while LPUART manages LIN subnets. |
Use Scenario: Intelligent switching and protection of 12 V/48 V power rails feeding ADAS cameras, infotainment, and telematics modules. IC Role / Device Role / Timing Role: Safety-critical supervisor MCU performing overcurrent detection via ADC, thermal shutdown via TempSense, and fault logging with CRC-protected nonvolatile storage. Use Value: ASIL-B compliance and ECC-protected 2 MB flash ensure reliable fault recording and recovery; QuadSPI supports external event log storage for diagnostic traceability. |
| Gateway ECU | Electric Power Steering (EPS) Support MCU |
Use Scenario: Protocol translation and firewalling between CAN FD, LIN, and Ethernet domains in zonal architectures. IC Role / Device Role / Timing Role: High-throughput communication hub routing messages between domains using FlexCAN, LPUART, and Ethernet MAC (via external PHY), with FlexIO emulating legacy protocols. Use Value: Dual FlexCAN + QuadSPI + 4 LPUART provides native multi-bus connectivity; 120 MHz M7 core processes routing tables and security policies in real time. |
Use Scenario: Secondary controller handling torque overlay, fail-safe torque limiting, and sensor fusion for EPS systems requiring redundancy. IC Role / Device Role / Timing Role: Safety-assist MCU monitoring primary EPS controller health, validating torque commands via CRC, and initiating mechanical fallback if anomalies detected. Use Value: Hardware watchdog timers (SWT), XRDC memory protection, and lockstep-capable architecture (shared with S32K34x family) enable independent safety channel implementation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S32K311NHT0VPBST | 1 MB flash, 128 KB SRAM (96 KB TCM), same core/peripherals but reduced memory and I/O count | Targeted at cost-sensitive entry-level BCMs with fewer LIN nodes and no QuadSPI requirement | Select when memory footprint and external memory expansion are not needed; retains identical pinout and software compatibility |
| S32K314NHT0VPBST | 4 MB flash, 512 KB SRAM (96 KB TCM), adds third ADC, third eMIOS, and additional LPSPI/LPI2C channels | Suitable for advanced gateway ECUs requiring larger OTA image storage and expanded sensor fusion capability | Choose for future-proofing or higher integration density; shares same HDQFP172 package and migration path within S32K3xx family |
Compared with S32K312NHT0VPBST, the S32K311 offers lower memory capacity for simpler applications, while the S32K314 delivers expanded analog and communication resources for complex gateways-both maintain identical safety architecture, core performance, and package compatibility.
Availability
S32K312NHT0VPBST is available at Aetrix Electronics and suitable for automotive body control, power distribution, gateway, and EPS support applications requiring stable component supply, long-term lifecycle assurance, and ASIL-B compliance.
Supply support for S32K312NHT0VPBST 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, connected, and intelligent solutions for automotive, industrial, and IoT markets.
The S32K3xx product line was designed specifically for next-generation automotive electronic control units demanding ASIL-B/D functional safety, hardware-accelerated security, and scalable real-time performance in harsh environments.
FAQ
What is the maximum operating frequency of the S32K312NHT0VPBST?
The S32K312NHT0VPBST features an Arm Cortex-M7 core rated for up to 120 MHz operation. This frequency is guaranteed across the full -40 °C to 125 °C ambient temperature range and 2.97 V to 5.5 V supply voltage, with all peripherals-including ADC, eMIOS, and FlexCAN-fully functional at this speed. The S32K312NHT0VPBST does not support the 160 MHz or 240 MHz variants found in higher-tier S32K3xx devices like the S32K322 or S32K328.
Does the S32K312NHT0VPBST support CAN FD?
Yes, the S32K312NHT0VPBST includes two FlexCAN modules, both fully supporting CAN FD (Controller Area Network with Flexible Data-Rate) per ISO 11898-1:2015. Each channel supports bit rates up to 5 Mbps in the data phase, payload lengths up to 64 bytes, and automatic protocol arbitration between Classical CAN and CAN FD frames. This capability is confirmed in the S32K3xx Data Sheet Rev. 14, Section 1.3 "Communications Interfaces".
What package type is used for the S32K312NHT0VPBST?
The S32K312NHT0VPBST is packaged in a HDQFP172 (Heat Dissipation Quad Flat Package, 172-pin) with exposed pad. This package is explicitly listed in the S32K3xx Data Sheet Rev. 14, Figure 3 (S32K312 block diagram) and Table 1 "Package Options". It provides thermal performance suitable for under-hood automotive applications and is pin-compatible with other S32K3xx variants offered in the same HDQFP172 variant.
Is the S32K312NHT0VPBST qualified for automotive AEC-Q100 Grade 1?
Yes, the S32K312NHT0VPBST is AEC-Q100 qualified for Grade 1, with an operating ambient temperature range of -40 °C to 125 °C. This qualification is documented in the official NXP S32K3xx Automotive Microcontrollers Product Summary and confirmed in the S32K3xx Data Sheet Rev. 14, Section 1.1 "Operating Characteristics". The device meets all stress test requirements including HTOL, TC, and UHAST for automotive reliability.
Does the S32K312NHT0VPBST include hardware security acceleration?
Yes, the S32K312NHT0VPBST integrates the Hardware Security Engine (HSE-B), which accelerates AES-128/256 encryption/decryption, SHA-256 hashing, and RSA-2048 signature verification. It supports secure boot, key provisioning, and firmware authentication. While HSE-B is present in all S32K3xx devices, note that advanced cryptographic features like ECC-521 and RSA-4096 acceleration are reserved for S32K388/K389 variants per the S32K3xx Data Sheet Rev. 14, Section 1.8 "Reliability, safety and security".
S32K312NHT0VPBST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 172-QFP
- Series:
- S32K3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 120MHz
- Connectivity:
- CANbus, FlexIO, I2C, I3C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, Serial Audio, WDT
- Number of I/O:
- 143
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 128K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.97V ~ 5.5V
- Data Converters:
- A/D 24x12b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S32K312NHT0VPBST FAQ
1.How can I place an order for S32K312NHT0VPBST through Aetrix?
Please submit a Request for Quotation (RFQ) for S32K312NHT0VPBST on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S32K312NHT0VPBST reliable?
The price and inventory of S32K312NHT0VPBST are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S32K312NHT0VPBST is usually 5 days.
3.What payment methods are accepted for S32K312NHT0VPBST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S32K312NHT0VPBST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S32K312NHT0VPBST?
S32K312NHT0VPBST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S32K312NHT0VPBST order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S32K312NHT0VPBST?
For technical support, including S32K312NHT0VPBST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S32K312NHT0VPBST requirements.
6.How does Aetrix verify that S32K312NHT0VPBST is sourced from the original manufacturer or authorized distributors?
All S32K312NHT0VPBST products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S32K312NHT0VPBST meets industry standards.
7.What is the process for return or replacement of S32K312NHT0VPBST?
All S32K312NHT0VPBST units undergo pre-shipment inspection (PSI). If there is an issue with S32K312NHT0VPBST, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S32K312NHT0VPBST part is unused and in its original packaging.
Return procedure for S32K312NHT0VPBST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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