STM32F746BGT6 - 216MHz Cortex-M7 MCU, 1MB Flash, LQFP-208 | STMicroelectronics
Teilenummer: STM32F746BGT6 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $16.5 | $16,50 |
| 10 | $15.2 | $152,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $12.4 | $6.200,00 |
| 1.000 | $11.05 | $11.050,00 |
STM32F746BGT6 Übersicht
What is an ARM Cortex-M7 MCU? The Cortex-M7 is a high-end Arm Cortex-M core featuring a 6-stage superscalar pipeline, single/double-precision FPU, DSP extensions, branch prediction, and tightly coupled memories (TCM). It sits above Cortex-M4 in the M-class taxonomy (Cortex-M0/M0+/M3/M4/M7/M33/M85) and enables signal-processing and graphics workloads that M-class cores could not address. STM32F746BGT6 integrates this core with ST's ART Accelerator, DCMI, USB 2.0 OTG, Ethernet MAC, CAN, SDMMC and crypto/hash accelerators, making it a system-on-chip for advanced HMI and IoT edge nodes.
Key features of the STM32F746BGT6 include 1 MB Flash, 320 KB SRAM, a 216 MHz CPU with double-precision FPU, an LCD-TFT controller up to XGA resolution, USB OTG HS and FS, two CAN 2.0B interfaces, an Ethernet MAC with 10/100 Mbit support, three 12-bit 2.4 MSPS ADCs, two 12-bit DACs, SDMMC, USART, SPI, I2C, SAI, audio PLL, and an integrated crypto/hash block (AES-256, SHA-256, TRNG). Package is LQFP-208 (28x28 mm).
The architecture pairs the Cortex-M7 core with the ART Accelerator (instruction cache + prefetch buffer) and 16 KB I-cache plus 16 KB D-cache. Two DMA controllers with FIFOs offload peripheral transfers, and a flexible memory controller (FMC) interfaces external SRAM, NOR, NAND, and PSRAM. The Chrom-ART accelerator offloads 2D graphics operations, complementing the hardware JPEG codec and LCD-TFT controller for HMI applications without burdening the CPU.
Typical applications include industrial HMI panels, medical patient monitors, smart-home gateways, building automation controllers, point-of-sale terminals, and graphics-enabled IoT appliances. The 1 MB Flash and 320 KB SRAM allow rich graphical stacks such as TouchGFX or LVGL to run natively.
When designing with this device, ensure the 208-pin LQFP layout supports minimum 4-layer PCB with continuous ground plane beneath the exposed thermal pad area for heat spreading and signal return paths. Use the HAL/LL drivers and STM32CubeMX for peripheral configuration.
This page synthesizes distributor pricing, drop-in alternatives within the STM32F7 family, and practical design notes not found in the manufacturer datasheet.
Drop-in-Alternativen für STM32F746BGT6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit STM32F746BGT6 (gleiche Bauform und Footprint) – abweichend in Flash Memory, Package, SRAM, Core, Mounting Type.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
STM32F745BGT6
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
STM32F746BGT6 Grenzwerte & elektrische Eigenschaften
| Core | ARM Cortex-M7 32-bit RISC |
| CPU Frequency | Up to 216 MHz |
| FPU | Single + Double Precision |
| DSP Instructions | Yes |
| Flash Memory | 1 MB |
| SRAM | 320 KB |
| Instruction Cache | 16 KB I-cache + 16 KB D-cache (ART Accelerator) |
| Gehäuse | 208-LQFP (28x28 mm) |
| Operating Voltage | 1.7 V to 3.6 V |
| Betriebstemperatur | -40C to +85C (industrial grade) |
| ADC | 3x 12-bit, up to 2.4 MSPS |
| DAC | 2x 12-bit |
| Timers | Advanced / General-purpose / Basic timers |
| Communication Interfaces | USB OTG HS+FS, 2x CAN, Ethernet MAC, USART, SPI, I2C, SAI, SDMMC |
| Graphics | LCD-TFT controller, Chrom-ART Accelerator, JPEG codec |
| Crypto | AES-256, SHA-256, TRNG |
| Montageart | Surface Mount (LQFP) |
| MSL-Level | 3 (168 hours) |
| RoHS-Status | Compliant |
| Packaging | Tray |
STM32F746BGT6 208-lqfp (28x28 mm) Pinbelegungsleitfaden
Pinbelegung für STM32F746BGT6 (208-lqfp (28x28 mm)-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für STM32F746BGT6.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
STM32F746BGT6 ist geeignet für 7 Anwendungs: Industrial HMI Panels, Medical Patient Monitors, Smart Home Gateways, Point-of-Sale Terminals, Building Automation Controllers, Graphics-Enabled IoT Appliances, Audio DSP and SAI Processing.
Industrial HMI Panels
The STM32F746BGT6 is purpose-built for industrial HMI panels combining a 216 MHz Cortex-M7 core with Chrom-ART graphics accelerator, LCD-TFT controller up to XGA resolution, and JPEG hardware codec, allowing TouchGFX or LVGL graphical stacks to render smoothly without external graphics controllers. The 320 KB SRAM supports frame buffers up to 800x480 RGBA8888 while the ART Accelerator eliminates wait states at 216 MHz. Hardware crypto (AES-256/SHA-256) secures field-updates and authentication. The integrated TFT-FS interface connects directly to 4.3-7 inch displays over RGB565, reducing BOM cost by USD 1-3 versus designs requiring external SSD1963 or RA8875 controller ICs, and the FMC bus supports external SDRAM for higher-resolution 10.1 inch panels.
Empfohlen
Medical Patient Monitors
The STM32F746BGT6 fits medical patient monitors where its DSP extensions accelerate heart-rate, SpO2 and ECG signal processing in firmware while the three 12-bit 2.4 MSPS ADCs sample analog biosensor channels simultaneously. The Cortex-M7 single-precision FPU runs CMSIS-DSP libraries for FFT-based heart-rate variability algorithms 2-3x faster than Cortex-M4 alternatives. The 320 KB SRAM holds multi-channel waveform buffers (e.g., 8 seconds at 1 kSPS) and the USB OTG HS streams processed data to host PCs. The integrated crypto/hash block supports encrypted patient data at rest, while IEC 60601-1 compliant isolation designs benefit from the wide 1.7 V to 3.6 V supply range for redundant power supervision.
Empfohlen
Smart Home Gateways
The STM32F746BGT6 serves as the central MCU in smart-home gateways bridging Zigbee, Z-Wave, Wi-Fi and Thread peripherals through its USB OTG HS, two CAN 2.0B ports, Ethernet MAC at 10/100 Mbit, and multiple SPI/I2C buses. The 1 MB Flash stores local firmware and an HTTPS client implementation while the Ethernet MAC supports TLS-secured cloud connectivity. The Cortex-M7 at 216 MHz handles concurrent protocol stacks (MQTT, CoAP, Matter) without dropping real-time tasks. The crypto/hash block accelerates TLS handshake by 3-5x versus software-only implementations. Industrial-grade -40C to +85C operation supports outdoor enclosure deployment in attics, garages, and structured-wiring panels.
Empfohlen
Point-of-Sale Terminals
The STM32F746BGT6 powers point-of-sale terminals where its LCD-TFT controller drives the merchant-facing display and the USB OTG HS connects to PIN pads and barcode scanners. The 320 KB SRAM supports TFT frame buffers plus payment-application memory while the AES-256/SHA-256/TRNG block secures PCI-PTS compliant transactions. The Ethernet MAC enables cloud inventory and transaction synchronization at 10/100 Mbit. Dual SDMMC interfaces support customer-facing card readers and merchant-side storage. The 208-pin LQFP package exposes enough GPIO for thermal printer drivers, cash-drawer kick-out signals, and customer display LCD interfaces simultaneously without external I/O expanders.
Empfohlen
Building Automation Controllers
The STM32F746BGT6 anchors building automation controllers running BACnet, KNX, or Modbus protocols simultaneously across its dual CAN 2.0B interfaces, USART buses, and Ethernet MAC. The Cortex-M7's deterministic 216 MHz execution handles real-time HVAC control cycles under 10 ms while the LCD-TFT controller drives room-status touchscreens. The crypto/hash block secures BACnet/SC and KNX IP traffic. The wide 1.7 V to 3.6 V supply tolerance tolerates 24 V industrial bus power rails after buck conversion. The 1 MB Flash stores full automation firmware and graphical HMI assets without external memory, while 320 KB SRAM buffers BACnet object databases and HVAC trend logs in real-time.
Empfohlen
Graphics-Enabled IoT Appliances
The STM32F746BGT6 brings rich HMI to consumer IoT appliances (smart ovens, washing machines, robotic vacuums) by combining Cortex-M7 at 216 MHz, Chrom-ART accelerator, and the LCD-TFT controller on a single chip. The 1 MB Flash stores full graphical firmware assets while 320 KB SRAM holds frame buffers for 480x272 to 800x480 displays. The USB OTG FS supports firmware-update via USB stick, while Ethernet MAC or Wi-Fi companion module handles cloud telemetry. The 12-bit ADC channels read appliance sensors (temperature, humidity, motor current), and the DSP extensions run FFT-based motor-control algorithms in firmware. Hardware AES-256 secures over-the-air firmware updates against tampering in connected appliances.
Empfohlen
Audio DSP and SAI Processing
The STM32F746BGT6 supports multi-channel audio processing through its SAI (Serial Audio Interface) running up to 192 kHz sample rates, three I2S interfaces, and the Cortex-M7's DSP extensions. The single + double precision FPU executes CMSIS-DSP biquad filters, FFT spectrum analysis, and noise-suppression algorithms in real time. The 320 KB SRAM holds 4-8 seconds of 48 kHz/24-bit audio buffers for echo cancellation. The hardware AES-256 supports encrypted audio streaming for premium sound bars. USB OTG HS streams multichannel audio from PCs while the dual DAC outputs drive analog amplification stages, making this MCU a strong fit for networked audio receivers and smart speakers.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für STM32F746BGT6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | STM32F745BGT6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Package | LQFP-208 | LQFP-208 (same) |
| Core | Cortex-M7 @ 216 MHz | Cortex-M7 @ 216 MHz (same) |
| Flash | 1 MB | 1 MB (same) |
| SRAM | 320 KB | 320 KB (same) |
| LCD-TFT Controller | Yes (up to XGA) | No |
| Crypto/Hash Block | AES-256, SHA-256, TRNG | No |
| Ethernet MAC | Yes (10/100 Mbit) | Yes (10/100 Mbit) |
Wichtigste Unterscheidungsmerkmale
- Integrated LCD-TFT controller and Chrom-ART graphics accelerator (vs. STM32F745BGT6)
- Hardware AES-256/SHA-256/TRNG crypto block (vs. STM32F745BGT6)
- 208-pin LQFP supports full FMC external memory interface (vs. STM32F746VGT6 (LQFP-100))
Designhinweise
The STM32F746BGT6 in LQFP-208 (28x28 mm) has a typical theta_JA around 30 C/W without a dedicated thermal pad (LQFP does not have an exposed pad like QFN). At 216 MHz with all peripherals active the part dissipates approximately 0.6-1.2 W depending on GPIO toggling. For designs in sealed enclosures above 60 C, ensure 4-layer PCB with at least 2 oz copper on top/bottom layers, and consider forced airflow. The industrial -40C to +85C grade supports most factory environments without additional cooling.
Use minimum 4-layer PCB with continuous ground plane beneath the LQFP-208 package for signal return paths. Decouple each VDD/VSS pin pair with 100 nF X7R ceramic capacitor placed within 3 mm of the pin; add 4.7 uF bulk capacitors at each supply rail. For high-speed SDMMC/USB traces maintain 90 ohm differential impedance. Keep analog ADC traces away from switching regulator nodes by at least 5 mm or shield them with ground pours. Reset the NRST line via 10 kohm pull-up and 100 nF capacitor for clean power-on reset.
Place the 25 MHz HSE crystal within 5 mm of OSC_IN/OSC_OUT pins with symmetric routing, and surround the crystal traces with a ground pour. The 32.768 kHz LSE crystal for RTC follows similar layout discipline. Route USB DP/DM as 90 ohm differential pair with reference to ground, never crossing other signals. FMC SDRAM traces must be matched-length within 25 ps for proper operation above 100 MHz SDRAM clock. Avoid routing long traces under the LQFP-208 package to minimize coupling into ground bounce.
Common pitfalls when designing with STM32F746BGT6: (1) the 208-pin LQFP footprint is very large (28x28 mm) - ensure connector placement allows routing channels to inner pins. (2) The boot pins BOOT0/BOOT1 require careful reset-circuit design or the MCU will not boot from Flash. (3) For designs using external SDRAM via FMC, configure wait states per STM32F7 reference manual RM0385 - misconfigured wait states cause silent data corruption. (4) The LSE crystal load capacitors must match the crystal's CL specification - using 12 pF instead of 6 pF prevents RTC startup. (5) When migrating TO ST, change toolchain from HAL-based to CubeMX-LL drivers.
Compliance-Informationen
RoHS and REACH compliant per ST product page. Industrial-grade -40C to +85C. Not AEC-Q100 qualified - for automotive applications use STM32F746BGT6 AEC-Q100 qualified variant if available.
