S32K344 - 160MHz Arm Cortex-M7 MCU | NXP | Automotive
MPN: S32K344 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.2 | $112.00 |
| 100 | $9.85 | $985.00 |
| 500 | $8.9 | $4,450.00 |
| 1,000 | $8.1 | $8,100.00 |
S32K344 Overview
An Arm Cortex-M7 is a high-performance 32-bit processor core based on the Armv7-M architecture, featuring a 6-stage pipeline, branch prediction, and a floating-point unit (FPU). It is widely used in microcontrollers for applications requiring significant processing power, such as real-time control, digital signal processing, and machine learning at the edge. The S32K344 integrates this core with a rich set of peripherals, including CAN FD, Ethernet, QSPI, and a Hardware Security Engine (HSE), making it suitable for automotive body electronics, gateway modules, and industrial control systems.
Key features of the S32K344 include dual-core lockstep configuration for ASIL-D functional safety, a Hardware Security Engine (HSE) for secure boot and key management, and support for firmware over-the-air (FOTA) updates. The device also offers a comprehensive set of communication interfaces, including Ethernet, CAN FD, LIN, SPI, I2C, and UART, along with advanced analog and timer peripherals. The S32K344 is designed to meet ISO 26262 functional safety requirements, with safety mechanisms such as ECC on memories, clock and voltage monitoring, and a lockstep core option.
The S32K344 is built on NXP advanced process technology, offering low power consumption and high reliability. It includes a memory protection unit (MPU), a DMA controller for efficient data transfer, and a flexible clocking scheme with internal and external oscillators, plus multiple low-power modes for battery-powered designs.
Typical applications for the S32K344 include automotive body control modules, gateway modules, battery management systems, and industrial automation controllers. Its combination of performance, safety, and security makes it ideal for applications requiring real-time control and secure communication. The S32K344 is supported by NXP S32 Design Studio IDE, AUTOSAR-compliant drivers, and a comprehensive SDK.
When designing with the S32K344, place 100 nF decoupling capacitors close to each power pin and a bulk capacitor on the main supply. For functional safety applications, enable the lockstep mode and configure safety mechanisms per ISO 26262 guidelines.
Drop-in alternatives for S32K344 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S32K342
✅ Drop-In📋 Reference alternative (not in catalog)
S32K312
✅ Drop-In📋 Reference alternative (not in catalog)
S32K348
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
S32K344 Maximum Ratings & Electrical Characteristics
| Core | Arm Cortex-M7 (32-bit) |
| Core Frequency | 160 MHz (up to 320 MHz in variants) |
| Performance | 2.14 DMIPS/MHz |
| Architecture | Armv7 / Thumb-2 ISA |
| Flash Memory | 4 MB with ECC |
| RAM | 512 kB |
| Supply Voltage | 2.97 V to 5.5 V |
| Operating Temperature | -40C to +125C (all power modes) |
| Package | 172-QFP (HDQFP, 16x16 mm) |
| Communication Interfaces | CAN FD, Ethernet, LIN, SPI, I2C, UART, QSPI |
| Security | Hardware Security Engine (HSE B) |
| Functional Safety | ISO 26262 support, lockstep core option |
| Memory ECC | Yes (flash and RAM) |
| Peripherals | MPU, DMA, advanced timers, analog peripherals |
| Mounting Type | Surface Mount |
| Typical Applications | Automotive general purpose |
S32K344 172-qfp (hdqfp, 16x16 mm) Pin Configuration Guide
Pin configuration for S32K344 (172-qfp (hdqfp, 16x16 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S32K344.
Refer to the datasheet for full pin configuration.
Typical Applications
S32K344 is suitable for 6 applications: Automotive Gateway Modules, Body Control Modules, Battery Management Systems, Industrial Automation Control, Mobile Robotics and AMR Platforms, Secure IoT Edge Nodes.
Automotive Gateway Modules
The S32K344 fits automotive gateway designs through its combination of multiple CAN FD channels, Ethernet, and LIN interfaces, enabling protocol translation between vehicle network domains. Its 160 MHz Cortex-M7 with ECC-protected 4 MB flash handles routing tables, diagnostics, and FOTA updates, while the HSE hardware security engine secures message authentication and secure boot. In a typical topology the MCU bridges chassis CAN FD, body LIN, and backbone Ethernet segments; unlike software-only bridges, hardware CAN FD controllers keep latency deterministic at high bus loads of 2-8 Mbit/s.
Recommended
Body Control Modules
The S32K344 suits body control modules (BCM) because it combines low-power modes with -40 °C to +125 °C operation on a 2.97-5.5 V supply that tolerates automotive 12 V load-dump conditions with simple front-end regulation. The lockstep Cortex-M7 option supports safety-relevant functions such as exterior lighting diagnostics, while 4 MB flash stores multiple configuration sets for platform reuse. LIN, CAN FD, and I2C peripherals connect switches, LEDs, and motor drivers directly, and ECC on memories protects against bit flips over the vehicle lifetime.
Recommended
Battery Management Systems
The S32K344 is a strong BMS host controller: its 160 MHz Cortex-M7 executes state-of-charge and state-of-health algorithms in real time, while lockstep operation and ECC memories align with ISO 26262 battery safety goals. Multiple CAN FD channels report to the vehicle ECU, and QSPI can expand external flash for logged data. With a 5.5 V tolerant supply domain, it interfaces cleanly with battery front-end ICs via SPI or UART; the HSE engine secures charge-station authentication communication.
Recommended
Industrial Automation Control
In industrial automation, the S32K344 provides deterministic real-time control with its Cortex-M7 core, DMA controller, and advanced timer peripherals for motor control PWM generation. The 2.14 DMIPS/MHz performance supports fieldbus stacks (Ethernet, CANopen over CAN FD), and operation from -40 °C to +125 °C covers cabinet and machinery environments. ECC-protected memory and voltage/clock monitoring increase uptime in continuously operating equipment, while QSPI allows firmware feature expansion in the field.
Recommended
Mobile Robotics and AMR Platforms
The S32K344 is the MCU at the heart of NXP MR-CANHUBK344 reference board targeting mobile robotics such as autonomous mobile robots (AMR) and automated guided vehicles (AGV). Its lockstep Cortex-M7 at 160 MHz runs real-time sensor fusion and safety monitoring while CAN FD and Ethernet communicate with traction drives, lidar, and fleet management. Zephyr RTOS support simplifies software development; the FRDM-A-S32K344 board with Arduino UNO-compatible layout accelerates expansion prototyping.
Recommended
Secure IoT Edge Nodes
The S32K344 serves secure industrial IoT edge nodes where the HSE B hardware security engine provides secure boot, key storage, and crypto acceleration for TLS and device identity. Ethernet and CAN FD connectivity bridge legacy fieldbuses to IP networks, and FOTA support enables remote firmware updates with authenticated images. The 2.97-5.5 V input simplifies connection to industrial 5 V rails, and multiple low-power modes suit always-on monitoring nodes with duty-cycled radios.
Recommended
Recommended Products Summary
Engineering reference data for S32K344 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S32K342 | S32K312 | S32K348 | S32K146 |
|---|---|---|---|---|---|
| Package | 172-QFP (HDQFP, 16x16 mm) | 172-QFP (HDQFP) - same | 172-QFP (HDQFP) - same | 172-QFP (HDQFP) - same | LQFP-144 - different |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Frequency | Cortex-M7, 160 MHz | Cortex-M7, 160 MHz | Cortex-M7, 120 MHz | Cortex-M7, 160 MHz | Cortex-M4F, 180 MHz |
| Flash Memory | 4 MB (ECC) | 2 MB (ECC) | 1 MB (ECC) | 4 MB (ECC) | 2 MB (ECC) |
| Supply Voltage | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.97 V to 5.5 V | 2.7 V to 5.5 V |
| Security Engine | HSE B | HSE | HSE | HSE B | CSEc |
| Temperature Range | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- HSE B hardware security engine (vs S32K146)
- Lockstep Cortex-M7 for functional safety (vs S32K312)
- Large 4 MB ECC flash in single package (vs S32K342)
Design Notes
Provide a stable 3.3 V (or 5 V tolerant) supply within the 2.97-5.5 V range. Place 100 nF ceramic decoupling capacitors close to each VDD power pin pair and one 10 uF bulk capacitor at the board supply entry. Follow the NXP S32K3xx Hardware Design Guidelines for the V15 core domain external regulator/BUCK requirements and power sequencing between VDD_HV and V15 domains to avoid latch-up during startup.
The 172-pin HDQFP (0.5 mm pitch) requires careful fanout; use 4-layer PCB with dedicated ground plane. Keep crystal and high-speed routing (Ethernet RMII, QSPI) short and matched. Exposed reference designs such as FRDM-A-S32K344 provide proven layout patterns worth copying for first-time designs.
For functional safety applications, lockstep mode must be enabled at boot and ECC monitoring configured per ISO 26262 - enabling it later requires software re-validation. When migrating between S32K3 family members (e.g., S32K344 to S32K312), verify pin function differences; NXP AN14301 documents 66 pin-location differences between S32K344 and S32K396 alone.
CAN FD at 5-8 Mbit/s data phase and Ethernet RMII require controlled impedance traces (50 ohm single-ended, 100 ohm differential for CAN) and proper transceiver placement near the connector. Use the NXP reference schematic from MR-CANHUBK344 for validated termination and ESD protection networks.
Compliance Information
Automotive-grade S32K3 family; AEC-Q100 qualification inferred from automotive general purpose classification. Obtain formal material declarations from NXP product page for specific orderable part numbers.
