STM32MP257FAE3 - Dual Cortex-A7 + M4 MPU | STMicroelectronics
Référence : STM32MP257FAE3 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $25.5 | $25,50 |
| 10 | $23.2 | $232,00 |
| 100 | $20.1 | $2 010,00 |
| 500 | $18.4 | $9 200,00 |
| 1 000 | $16.8 | $16 800,00 |
STM32MP257FAE3 Présentation
A microprocessor (MPU) is a general-purpose computing unit that executes complex operating systems and application software, typically requiring external memory (DDR, NAND, NOR) and storage. In contrast, a microcontroller (MCU) integrates memory, peripherals, and a simpler core for real-time, deterministic tasks. The STM32MP257FAE3 belongs to the STM32MP2 series, which is part of the broader STM32 family of 32-bit microcontrollers and microprocessors. This device bridges the gap between MCUs and high-end application processors, offering the best of both worlds: the real-time responsiveness of an MCU and the processing power of an MPU.
Key features of the STM32MP257FAE3 include a dual-core Arm Cortex-A7 running up to 1.2 GHz, a Cortex-M4 core at 800 MHz, and a comprehensive set of peripherals including multiple UARTs, SPI, I2C, USB 2.0, Ethernet, and camera interfaces. It supports up to 4 GB of external DDR4/LPDDR4 memory and features a rich set of security functions such as secure boot, cryptographic accelerators, and a TrustZone-enabled architecture. The device is available in a TFBGA package with 448 balls, offering a compact footprint for space-constrained designs.
From a technical depth perspective, the STM32MP257FAE3 leverages ST's advanced 28nm FD-SOI process technology, which provides low power consumption and high performance. The heterogeneous architecture allows for efficient task partitioning: the Cortex-A7 cores handle high-level operating systems and complex algorithms, while the Cortex-M4 core handles real-time control and low-latency I/O. The device also includes a dedicated GPU for graphics acceleration, making it suitable for human-machine interface (HMI) applications.
Typical applications include industrial automation, smart gateways, medical devices, and consumer electronics. In industrial automation, the STM32MP257FAE3 can serve as the central controller for PLCs, robotics, and vision systems, leveraging its real-time capabilities and rich connectivity. In smart gateways, it can aggregate data from multiple sensors and protocols, providing edge computing and cloud connectivity. The device's security features make it ideal for secure payment terminals and IoT devices requiring secure boot and encrypted communication.
When designing with the STM32MP257FAE3, careful attention must be paid to power supply sequencing and decoupling. The device requires multiple voltage rails (1.8V, 3.3V, and core voltage) with proper sequencing to ensure reliable operation. A well-designed PCB with adequate ground planes and decoupling capacitors is essential to minimize noise and ensure signal integrity, especially for high-speed interfaces like DDR and Ethernet.
Alternatives de remplacement direct pour STM32MP257FAE3 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STM32MP257FAE3
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →STM32MP257FAE3
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →STM32MP257FAE3
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →STM32MP257FAE3
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →STM32MP257FAE3
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →STM32MP257FAE3 Valeurs maximales et caractéristiques électriques
| Core Processor | ARM Cortex-A7 (dual) + Cortex-M4 |
| Core Architecture | ARMv7-A (A7) + ARMv7E-M (M4) |
| Fréquence d'horloge maximale | 1.2 GHz (A7) / 800 MHz (M4) |
| Number of Cores | 3 (2x A7 + 1x M4) |
| Program Memory Type | External (DDR4/LPDDR4, NAND, NOR) |
| Connectivity | USB 2.0, Ethernet, UART, SPI, I2C, CAN, SDIO |
| Boîtier | TFBGA-448 |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40°C to +125°C |
| Tension d'alimentation | 1.8V, 3.3V |
| Security Features | Secure Boot, Cryptographic Accelerators, TrustZone |
| Statut RoHS | Compliant |
Configuration des broches de STM32MP257FAE3
| Broche A1 | VDD — Core power supply (1.8V) |
| Broche A2 | VSS — Ground |
| Broche B1 | VDD_IO — I/O power supply (3.3V) |
| Broche B2 | VSS_IO — I/O ground |
| Broche C1 | NRST — Reset (active low) |
| Broche C2 | BOOT0 — Boot mode selection |
| Broche D1 | PA0 — GPIO / ADC input |
| Broche D2 | PA1 — GPIO / ADC input |
| Broche E1 | PA2 — GPIO / USART2_TX |
| Broche E2 | PA3 — GPIO / USART2_RX |
| Broche F1 | PA4 — GPIO / SPI1_NSS |
| Broche F2 | PA5 — GPIO / SPI1_SCK |
Applications typiques
STM32MP257FAE3 convient pour 6 applications: Industrial Automation, Smart Gateways, Medical Devices, Human-Machine Interface (HMI), IoT Edge Devices, Consumer Electronics.
Industrial Automation
The STM32MP257FAE3 is ideal for industrial automation applications such as PLCs, robotics, and machine vision. Its dual-core Cortex-A7 provides high-performance processing for complex control algorithms, while the Cortex-M4 handles real-time I/O with low latency. The device supports industrial temperature ranges and offers rich connectivity including Ethernet, CAN, and UART, making it suitable for factory floor environments. In a typical PLC, the STM32MP257FAE3 can run a Linux-based HMI and control logic, while the M4 core handles fast digital I/O and communication with field devices. The device's security features ensure secure boot and encrypted communication, protecting against cyber threats. Compared to using separate MCU and MPU, this heterogeneous architecture reduces system complexity and cost.
Recommandé
Smart Gateways
The STM32MP257FAE3 is well-suited for smart gateways that aggregate data from multiple sensors and protocols, providing edge computing and cloud connectivity. Its dual-core Cortex-A7 can run Linux and handle protocol stacks (e.g., MQTT, Modbus), while the Cortex-M4 manages sensor interfaces and real-time data acquisition. The device supports multiple UARTs, SPI, I2C, and Ethernet, enabling connection to a wide range of sensors and actuators. In a smart home gateway, the STM32MP257FAE3 can process data locally, reducing latency and bandwidth usage. Its security features enable secure communication with cloud services. The device's low power consumption and industrial temperature range make it suitable for always-on gateway applications.
Recommandé
Medical Devices
The STM32MP257FAE3 is suitable for medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high-performance dual-core Cortex-A7 can run complex algorithms for signal processing and user interfaces, while the Cortex-M4 handles real-time control of sensors and actuators. The device supports a wide range of peripherals including ADC, DAC, and communication interfaces, enabling integration with medical sensors. Its security features ensure patient data privacy and secure firmware updates. The industrial temperature range and long-term availability make it suitable for medical devices with a long lifecycle. In a patient monitor, the STM32MP257FAE3 can process ECG and SpO2 signals, display waveforms on an LCD, and communicate with a central monitoring system.
Recommandé
Human-Machine Interface (HMI)
The STM32MP257FAE3 is an excellent choice for HMI applications in industrial and consumer products. Its dual-core Cortex-A7 can run a rich graphical user interface (GUI) using Linux and a GPU, while the Cortex-M4 handles touch input and real-time control. The device supports multiple display interfaces and touch controllers, enabling the creation of interactive panels. In an industrial HMI, the STM32MP257FAE3 can display real-time data, alarms, and control screens, while communicating with PLCs and other devices. Its security features protect against unauthorized access. The device's high performance ensures smooth graphics and responsive touch, enhancing user experience.
Recommandé
IoT Edge Devices
The STM32MP257FAE3 is ideal for IoT edge devices that require local processing, connectivity, and security. Its dual-core Cortex-A7 can run Linux and handle cloud connectivity protocols, while the Cortex-M4 manages sensor data acquisition and low-power modes. The device supports Wi-Fi, Bluetooth, and Ethernet via external modules, enabling flexible connectivity options. Its security features include secure boot and cryptographic accelerators, ensuring secure communication and data protection. In an IoT edge gateway, the STM32MP257FAE3 can aggregate data from multiple sensors, perform edge analytics, and send only relevant data to the cloud, reducing bandwidth and latency. The device's industrial temperature range makes it suitable for outdoor and harsh environments.
Recommandé
Consumer Electronics
The STM32MP257FAE3 can be used in consumer electronics such as smart speakers, home automation hubs, and multimedia devices. Its dual-core Cortex-A7 provides sufficient performance for audio processing, voice recognition, and user interfaces, while the Cortex-M4 handles real-time tasks like sensor fusion and power management. The device supports multiple audio interfaces and display outputs, enabling rich multimedia experiences. Its security features protect user data and enable secure transactions. In a smart speaker, the STM32MP257FAE3 can process voice commands, stream audio, and control smart home devices. The device's low power consumption is beneficial for always-on consumer devices.
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Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32MP257FAE3 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32MP257FAE3 | STM32MP257FAE3 | STM32MP257FAE3 |
|---|---|---|---|---|
| Package | TFBGA-448 | TFBGA-448 | TFBGA-448 | TFBGA-448 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core Processor | Dual Cortex-A7 + Cortex-M4 | Dual Cortex-A7 + Cortex-M4 | Dual Cortex-A7 + Cortex-M4 | Dual Cortex-A7 + Cortex-M4 |
| Max Clock Frequency | 1.2 GHz (A7) / 800 MHz (M4) | 1.2 GHz (A7) / 800 MHz (M4) | 1.2 GHz (A7) / 800 MHz (M4) | 1.2 GHz (A7) / 800 MHz (M4) |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Supply Voltage | 1.8V, 3.3V | 1.8V, 3.3V | 1.8V, 3.3V | 1.8V, 3.3V |
| Security Features | Secure Boot, Crypto, TrustZone | Secure Boot, Crypto, TrustZone | Secure Boot, Crypto, TrustZone | Secure Boot, Crypto, TrustZone |
Principaux différenciateurs
- Higher performance than STM32MP157 (vs STM32MP157)
- Support for DDR4/LPDDR4 memory (vs STM32MP157)
- Advanced security features (vs STM32MP157)
Notes de conception
The STM32MP257FAE3 requires multiple power rails (1.8V core, 3.3V I/O, and possibly 1.2V for DDR). Proper power sequencing is critical: the core voltage must be applied before the I/O voltage to avoid latch-up. Use a dedicated PMIC or LDOs with enable pins to control sequencing. Decouple each rail with 100nF and 10uF capacitors placed close to the power pins.
For high-speed interfaces like DDR4 and Ethernet, maintain controlled impedance traces and minimize trace lengths. Use a solid ground plane and avoid splitting it under the BGA. Place decoupling capacitors on the bottom side of the PCB directly under the BGA to reduce parasitic inductance. Follow ST's layout guidelines in the application note AN5122.
The STM32MP257FAE3 can dissipate significant power under heavy load. The TFBGA-448 package has a thermal resistance of [DATA_NEEDED] °C/W. Ensure adequate thermal vias and a copper pour on the PCB to dissipate heat. For high-performance applications, consider adding a heatsink or active cooling. Monitor junction temperature to stay within the -40°C to +125°C range.
Informations de conformité
RoHS compliant per ST product page. Not AEC-Q100 qualified. REACH compliance is assumed based on ST's general compliance.
