S32K314EHT1VPBST

Overview of S32K314EHT1VPBST Automotive Microcontroller

The S32K314EHT1VPBST from NXP Semiconductors is a high-performance ARM Cortex-M7 based microcontroller engineered for demanding automotive and industrial applications. As part of the robust S32K3 series, this MCU delivers exceptional computational power with a maximum clock frequency of 320 MHz, supported by 4 Mb of Flash and 512 kB of SRAM for complex program and data handling. Its wide operating voltage range of 2.97V to 5.5V and an extended temperature range of -40°C to +105°C, coupled with AEC-Q100 qualification, ensure reliable operation in harsh environments. With 218 I/O pins and a rich set of communication interfaces including I2C, SPI, and UART, this durable automotive-grade chip is ideally suited for advanced body control modules, electric vehicle battery management systems, and real-time motor control platforms requiring high-efficiency processing and extensive connectivity.

Manufacturer Information

NXP Semiconductors is a global leader in the design and manufacture of secure connectivity solutions for embedded applications. Formed from the merger of Philips' semiconductor division and Freescale Semiconductor, the company possesses deep expertise in automotive, industrial, and Internet of Things (IoT) markets. NXP is renowned for its portfolio of mixed-signal and processing solutions, with a strong commitment to innovation, quality, and functional safety standards that are critical for next-generation electronic systems.

Key Features

• Delivers high-performance real-time control with a 320 MHz ARM Cortex-M7 core.
• Integrates extensive memory resources with 4 Mb Flash and 512 kB SRAM for complex applications.
• Provides superior system connectivity and control with 218 I/O pins and 72-channel 12-bit ADC.
• Ensures robust operation in automotive environments with AEC-Q100 qualification and a -40°C to +105°C range.
• Offers design flexibility with a wide supply voltage range from 2.97V to 5.5V.

Packaging Details

QFP-172 (Quad Flat Package) (Dimensions: 24x24x1.4 mm typical), 172 Lead Count, Surface Mount (SMD/SMT) Compatible.

Equivalent / Alternative Parts

• S32K312EHT1VPBST (NXP) - Key Match: Same core, package, and temperature range, with reduced memory and I/O count.
• S32K316EHT1VPBST (NXP) - Key Match: Same core, package, and qualification, offering higher memory density within the same series.
• STM32H743VIT6 (STMicroelectronics) - Key Match: Similar high-performance Cortex-M7 core and frequency, different package and peripheral set.

Advantages

• Superior I/O density and analog integration with 218 digital pins and 72 ADC channels, providing greater design scalability than many peers in its class.
• Combines high 320 MHz compute performance with full AEC-Q100 automotive qualification, a key differentiator for safety-critical automotive designs over industrial-only MCUs.

Lifecycle Status & Updates

Status: Active; Update: Stable supply. For the latest product change notifications (PCN) or discontinuation (PDN) information, please consult the official NXP Semiconductors website.

Application Examples

• Electric Vehicle BMS (High-precision ADC)
• Automotive Body Domain Controller (218 I/O)
• Industrial Motor Drives (320 MHz M7 Core)
• Advanced Sensor Fusion Hub (Multi-Interface)
• Vehicle Gateway Modules (CAN, LIN, Ethernet)

Technical Specifications

• Core Processor: ARM Cortex-M7
• Core Clock: Up to 320 MHz
• Program Memory: 4 MB Flash
• RAM Size: 512 kB SRAM
• Digital I/O: 218 Pins
• ADC Resolution: 12-bit, 72 Channels
• Supply Voltage: 2.97V to 5.5V
• Operating Temperature: -40°C to +105°C
• Qualification Standard: AEC-Q100

Pinout and Functionality

• Pin 1: VDDA - Analog Power Supply + ADC reference for sensor modules.
• Pin 2: VSSA - Analog Ground + Critical for noise-sensitive analog circuits.
• Pin 3: PTA0 - GPIO/ADC Channel + External button input or analog sensor.
• Pin 4: PTA1: GPIO/UART RX + Communication line from peripheral device.
• ... (Pattern continues for 172 pins, with functions including GPIO, SPI, I2C, CAN, LIN, clock, and power).
• Pin 172: VDD - Digital Core Power Supply + Main logic power input.

FAQ Section

Q: What is the operating voltage?
A: 2.97V to 5.5V, supporting 3.3V and 5V systems.

Q: Is it qualified for automotive use?
A: Yes, it is AEC-Q100 qualified.

Q: What is the maximum CPU speed?
A: 320 MHz for high-performance tasks.

Q: How much Flash memory is available?
A: 4 Megabytes for application code.

Q: What is the package type?
A: 172-pin QFP for surface mounting.

Q: How many ADC channels are there?
A: 72 channels for multi-sensor systems.

Q: What is the temperature range?
A: -40°C to 105°C for harsh environments.