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STMicroelectronics STM32MP257DAK3

Name: STM32MP257DAK3
Brand: STMicroelectronics
SKU: STM32MP257DAK3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32MP257DAK3

Manufacturer:: STMicroelectronics

Category:: Microprocessors

Package:: 424-VFBGA

Datasheet:: STM32MP257DAK3.pdf

Description:: MPU WITH DUAL ARM CORTEX-A35 1.5

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Product details

Overview

STM32MP257DAK3 from STMicroelectronics is a dual-core 64-bit Arm® Cortex®-A35 (1.5 GHz) + Cortex®-M33 (400 MHz) MPU with TrustZone®, 808-Kbyte internal SRAM, DDR4/LPDDR4/DDR3L support up to 4 Gbytes, and integrated PCIe® 5 Gbit/s PHY shared with USB 3.0 SuperSpeed. It targets high-performance industrial HMI, edge AI gateways, and secure multimedia terminals requiring concurrent Linux and real-time RTOS execution.

For engineers reviewing the STM32MP257DAK3 datasheet, STM32MP257DAK3 pinout, STM32MP257DAK3 application, or STM32MP257DAK3 equivalent, key selection criteria include dual-A35 cache hierarchy (32-Kbyte I/D per core + 512-Kbyte L2), optional VeriSilicon GC8000UL GPU (900 MHz, Vulkan 1.3), NPU (1.35 TOPS), and hardware TSN/Ethernet switch support for deterministic networking.

Technical Context

The STM32MP257DAK3 implements a heterogeneous multi-domain architecture: dual Cortex-A35 cores run Linux with full MMU, NEON, and TrustZone isolation; the Cortex-M33 handles secure firmware services and real-time tasks with FPU and MPU; the Cortex-M0+ operates in SmartRun domain at 200 MHz (16 MHz in autonomous mode) for ultra-low-power peripheral management. All domains share a 128/64-bit STNoC interconnect running up to 600 MHz.

Security is enforced via hardware resource isolation framework (RIF), active tamper detection (8 inputs/8 outputs), BSEC with 12288-bit fuses, ECDSA PKA, SHA-256/HMAC accelerators, and tamper-protected 128-Kbyte BKPSRAM. Video processing uses dedicated VDEC/VENC blocks sharing 128-Kbyte video RAM, supporting H.264/VP8 1080p60 decode/encode and JPEG at 500 Mpixel/s.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Cores	Dual 64-bit Arm® Cortex®-A35 @ 1.5 GHz + single 32-bit Cortex®-M33 @ 400 MHz + single Cortex®-M0+ @ 200 MHz (16 MHz in backup)
Memory Interface	DDR4-2400 / LPDDR4-2400 / DDR3L-2133, 16/32-bit, up to 4 Gbytes external SDRAM capacity
Internal SRAM	808 Kbytes total: 256-Kbyte AXI SYSRAM + 128-Kbyte AXI video RAM + 256-Kbyte AHB SRAM + 128-Kbyte ECC AHB SRAM (backup) + 8-Kbyte ECC SRAM (backup) + 32-Kbyte SmartRun SRAM
Graphics & AI	Optional VeriSilicon GC8000UL GPU: OpenGL ES 3.1, Vulkan 1.3, 900 Mpixel/s; Optional NPU: TensorFlowLite/ONNX, 1.35 TOPS @ 900 MHz
Connectivity	PCIe® Gen2 (5 Gbit/s PHY shared with USB 3.0), 3× FDCAN (1× TTCAN), 3× Gigabit Ethernet (TSN/PTP), USB 2.0 Host + USB 2.0/3.0 Dual Role (Hi-Speed + SuperSpeed)
Display & Camera	MIPI DSI® (4-lane, 2.5 Gbit/s/lane), LVDS (dual-link, 1.1 Gbit/s/lane), MIPI CSI-2® (2-lane, 2.5 Gbit/s/lane), LCD-TFT up to FHD@60fps
Security	Arm® TrustZone® on all cores, BSEC with 12288-bit OTP, ECDSA PKA, SHA-256/HMAC accelerators, active tamper monitoring (8 inputs/8 outputs)

Pinout & Package

VFBGA424 package (14 × 14 mm, 0.5 mm pitch, 424-ball array) with ball-out optimized for DDR4/LPDDR4 routing, PCIe® differential pairs, and MIPI DSI/LVDS display interfaces. Thermal pad exposed on underside for enhanced power dissipation in high-clock operation.

Pin/Terminal	Circuit Role	Design Meaning
VDDCPU	CPU Core Supply	1.71–1.95 V supply for dual Cortex-A35 cores and L1/L2 caches; requires low-noise regulation
VDDGPU	GPU/NPU Supply	Dedicated 0.75–0.95 V rail for optional VeriSilicon GC8000UL GPU/NPU block
DDR_VREF	DDR Reference Voltage	0.5 × VDDQ reference for DDR4/LPDDR4 I/O termination; critical for signal integrity at 2400 MT/s
PCIE_TXP/N	PCIe® Differential Output	Embedded 5 Gbit/s PCIe® Gen2 transmitter pair; requires controlled 100 Ω differential impedance
USB3_SSP/N	USB 3.0 SuperSpeed Pair	Shared PHY with PCIe®; bidirectional 5 Gbit/s lane used for USB 3.0 DRD or PCIe® endpoint
DSI_D0P/N to D3P/N	MIPI DSI Data Lanes	Four high-speed differential lanes (2.5 Gbit/s each) supporting QXGA@60fps display output
CSI_D0P/N, D1P/N	MIPI CSI-2 Data Lanes	Two-lane CSI-2 interface for 5-Mpixel@30fps camera input; shares physical path with DCMIPP parallel interface

Key Features

Feature	Design Value
Heterogeneous Multi-Core Isolation	Hardware-enforced resource partitioning between Cortex-A35 (Linux), Cortex-M33 (secure firmware), and Cortex-M0+ (ultra-low-power peripherals) via RIF and TrustZone®
Shared PCIe®/USB3.0 PHY	Single embedded 5 Gbit/s SerDes PHY supports either PCIe® Gen2 endpoint or USB 3.0 SuperSpeed DRD, reducing BOM cost and PCB layer count
Video RAM Flexibility	128-Kbyte dedicated video RAM serves VDEC/VENC; when unused, it becomes general-purpose AXI SRAM, increasing CPU system memory to 384 Kbytes
TSN-Enabled Ethernet	Three Gigabit Ethernet MACs with IEEE 1588v2 hardware timestamping, TSN traffic shaping, and optional integrated switch supporting two external PHYs
SmartRun Domain Power Control	Cortex-M0+ operates independently in SmartRun domain at 200 MHz or 16 MHz (backup regulator), enabling wake-on-tamper or sensor-triggered resume without waking A35/M33

Applications

Industrial HMI Terminal

Edge AI Gateway

Use Scenario: Factory-floor human-machine interface with touch display, real-time PLC communication, and local AI inference for predictive maintenance alerts.

IC Role / Device Role / Timing Role: STM32MP257DAK3 runs Linux on dual A35 for GUI rendering (via LTDC + DSI), executes deterministic control on Cortex-M33, and performs vision-based anomaly detection using NPU-accelerated ONNX models.

Use Value: Concurrent Linux + RTOS execution eliminates dual-processor architecture; TSN Ethernet ensures sub-100 µs cycle time for synchronized motion control over standard cabling.

Use Scenario: Smart building gateway aggregating data from LoRaWAN/Zigbee sensors, performing local AI inference, and forwarding filtered results to cloud via secure TLS tunnel.

IC Role / Device Role / Timing Role: Cortex-A35 hosts Linux network stack and MQTT broker; Cortex-M33 manages secure boot, crypto offload, and sensor HAL; NPU runs TensorFlowLite models for occupancy detection.

Use Value: On-device AI reduces cloud bandwidth by >70%; hardware TrustZone® isolates secure keys from Linux OS; dual-band Wi-Fi coexistence enabled by PCIe®-connected radio module.

Medical Imaging Workstation

Secure Digital Signage

Use Scenario: Portable ultrasound or endoscopy display unit requiring real-time video decode, low-latency touch response, and HIPAA-compliant data encryption.

IC Role / Device Role / Timing Role: VDEC block decodes H.264 1080p60 video stream; LTDC drives 1080p display; BSEC + PKA enforces secure boot and AES-256 encryption of captured images.

Use Value: Hardware-accelerated video processing achieves <5 ms decode latency; tamper-protected 128-Kbyte BKPSRAM stores cryptographic keys immune to physical probing.

Use Scenario: Retail kiosk displaying dynamic ads with secure content updates, remote diagnostics, and anti-tampering monitoring.

IC Role / Device Role / Timing Role: Cortex-A35 renders HTML5 ads via GPU-accelerated WebGL; Cortex-M33 validates signed firmware updates; active tamper pins detect enclosure breach.

Use Value: Secure OTA updates prevent unauthorized ad injection; LVDS interface drives 4K signage with EMI resilience; 172 GPIOs enable custom I/O expansion for payment terminals or sensors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar heterogeneous MPU applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP i.MX 8M Plus	Quad Cortex-A53 + Cortex-M7; includes NPU (2.3 TOPS); no PCIe®; dual USB 3.0 host-only; LPDDR4 only	Stronger AI throughput but lacks PCIe® expansion and TSN Ethernet; limited display flexibility (no LVDS)	Select when AI inference dominates and PCIe®/TSN are unnecessary
Renesas RZ/G2L	Dual Cortex-A55 + Cortex-M33; no NPU; PCIe® Gen2; single USB 3.0 DRD; DDR4/LPDDR4 support	Lower AI capability but identical PCIe®/USB3.0 PHY sharing; stronger industrial temp grade (-40°C to +125°C)	Select for extended temperature operation where NPU is not required

Compared with i.MX 8M Plus and RZ/G2L, STM32MP257DAK3 uniquely combines PCIe®/USB3.0 PHY sharing, triple TSN Ethernet, LVDS+DSI display support, and flexible video RAM allocation-enabling single-chip solutions for high-integration industrial gateways without compromise on AI, connectivity, or display fidelity.

Availability

STM32MP257DAK3 is available at Aetrix Electronics and suitable for industrial HMI terminals, edge AI gateways, medical imaging workstations, and secure digital signage requiring stable component supply across long product lifecycles.

Supply support for STM32MP257DAK3 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STM32MP series targets high-performance embedded applications requiring Linux-capable MPUs with real-time co-processors and hardware security-designed specifically for industrial automation, smart infrastructure, and AI-at-the-edge systems.

FAQ

What is the maximum DDR4 speed supported by STM32MP257DAK3?

The STM32MP257DAK3 supports DDR4-2400 (1200 MHz clock, 2400 MT/s data rate) in 16-bit or 32-bit configurations, with up to 4 Gbytes addressable capacity. This requires strict PCB layout adherence to JEDEC DDR4 specifications, including matched trace lengths and proper VREF routing.

Does STM32MP257DAK3 include a hardware video encoder and decoder?

Yes-STM32MP257DAK3 integrates optional hardware VDEC and VENC blocks supporting H.264/VP8 up to 1080p60 decode/encode and JPEG at 500 Mpixel/s. These share 128-Kbyte video RAM; when unused, this memory becomes general-purpose AXI SRAM.

How does the SmartRun domain operate during Standby mode?

In Standby mode, the Cortex-M0+ remains active in the SmartRun domain at up to 16 MHz (powered by backup regulator), managing wake-up events (e.g., tamper, GPIO, RTC alarm) while all other domains-including dual A35 and M33-are fully powered down, achieving ultra-low static current.

Can STM32MP257DAK3 support both PCIe® and USB 3.0 simultaneously?

No-the PCIe® Gen2 and USB 3.0 SuperSpeed functions share a single embedded 5 Gbit/s PHY. The device supports either PCIe® endpoint operation or USB 3.0 Dual Role Data (DRD), but not both concurrently; configuration is fixed at boot via BOOT pins.

STM32MP257DAK3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 424-VFBGA

Series:: STM32MP2

Packaging:: Tray

Product Status:: Active

Core Processor:: ARM® Cortex®-A35, ARM® Cortex®-M0+, ARM® Cortex®-M33

Number of Cores/Bus Width:: 2, 1, 1 Core, 32-Bit

Speed:: 1.5GHz

Co-Processors/DSP:: GPU

RAM Controllers:: DDR3L, DDR4, LPDDR4

Graphics Acceleration:: Yes

Display & Interface Controllers:: LCD, LVDS, MIPI-CSI2

Ethernet:: 10/100/1000Mbps (3)

SATA:: -

USB:: USB 2.0 (1), USB 3.0 (1), USB Type-C (1)

Voltage - I/O:: 1.8V, 3.3V

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Security Features:: ARM TZ, Boot Security, TRNG

Mounting Type:: Surface Mount

Supplier Device Package:: 424-VFBGA (14x14)

Additional Interfaces:: GPIO, DMA, CANbus, I2C, MMC/SD/SDIO, SPDIF, SPI, UART/USART

STM32MP257DAK3 FAQ

1.How can I place an order for STM32MP257DAK3 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32MP257DAK3 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 STM32MP257DAK3 reliable?

The price and inventory of STM32MP257DAK3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32MP257DAK3 is usually 5 days.

3.What payment methods are accepted for STM32MP257DAK3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32MP257DAK3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32MP257DAK3?

STM32MP257DAK3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32MP257DAK3 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 STM32MP257DAK3?

For technical support, including STM32MP257DAK3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32MP257DAK3 requirements.

6.How does Aetrix verify that STM32MP257DAK3 is sourced from the original manufacturer or authorized distributors?

All STM32MP257DAK3 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 STM32MP257DAK3 meets industry standards.

7.What is the process for return or replacement of STM32MP257DAK3?

All STM32MP257DAK3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32MP257DAK3, 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 STM32MP257DAK3 part is unused and in its original packaging.

Return procedure for STM32MP257DAK3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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