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STMicroelectronics STM32H7R3A8I6
- Part No.:
- STM32H7R3A8I6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 169-UFBGA
- Datasheet:
-
STM32H7R3A8I6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 169UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,696
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Product details
Overview
STM32H7R3A8I6 from STMicroelectronics is an Arm® Cortex®-M7 32-bit microcontroller operating at up to 600 MHz, featuring 64 KB flash, 620 KB SRAM (548 KB with ECC), dual FD-CAN interfaces, Ethernet MAC, and NeoChrom GPU2D for advanced graphics acceleration - deployed in industrial HMI, motor control gateways, and edge AI inference nodes.
For engineers reviewing the STM32H7R3A8I6 datasheet, STM32H7R3A8I6 pinout, STM32H7R3A8I6 application, or STM32H7R3A8I6 equivalent, key selection criteria include FD-CAN timing compliance, TCM RAM allocation for real-time task isolation, octo-SPI XiP support for external code execution, and secure boot certificate authentication flow.
Technical Context
The device integrates a dual-bank Arm Cortex-M7 core with 32+32 KB L1 instruction/data cache, enabling zero-wait-state execution from flash or external memory. It implements a hierarchical bus matrix with AXI/AHB/APB domains, supporting concurrent high-bandwidth peripherals including dual USB OTG (FS/HS), Ethernet DMA, and two independent GPDMA controllers.
Security architecture includes root-of-trust via unique boot entry, Secure Hide Protection Area (HDP), embedded Root Secure Services (RSS) for SFI/SFU, and hardware-accelerated ECC verification - all managed under a flexible lifecycle scheme with debug reopening via certificate or password.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M7 @ 600 MHz with DP-FPU, MPU, and 32+32 KB L1 cache - enables deterministic real-time execution and floating-point-intensive control algorithms. |
| Memory | 64 KB user flash + 620 KB SRAM (64+64 KB TCM, 384 KB AXI, 4 KB backup) - supports time-critical ISR placement in TCM and large buffer handling in AXI SRAM. |
| Graphics | NeoChrom GPU2D + Chrom-ART Accelerator (DMA2D) + Chrom-GRC (GFXMMU) - accelerates rotation/scaling/texture mapping and reduces graphic memory bandwidth by up to 20%. |
| Connectivity | 2× FD-CAN, 1× Ethernet MAC with DMA, 2× USB OTG (FS/HS), 1× UCPD, 3× I2C, 1× I3C, 9× SPI/I2S, 2× SAI - suitable for automotive diagnostics, industrial networking, and audio processing. |
| Analog & Timing | 2× 12-bit ADC @ 5 MSPS (17 ch), CORDIC co-processor, RTC with sub-second accuracy, 23 timers including 5 low-power 16-bit timers - meets precision sensing and multi-domain timing synchronization needs. |
| Security | Secure firmware installation/update (SFI/SFU), PKA (ECC only), HASH, TRNG (NIST SP800-90B), 96-bit UID, 1 KB OTP, active tampers - fulfills PSA Level 3 and IEC 62443-3-3 requirements. |
Pinout & Package
STM32H7R3A8I6 is packaged in LQFP100 (14 × 14 mm, 0.5 mm pitch), with 100 pins arranged in four sides. The package supports industrial temperature range (–40°C to +105°C) and ECOPACK2 compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power supply / ground | Supplies VCORE (1.05–1.32 V) via internal LDO or SMPS; requires external 1.8 V or 3.3 V input depending on regulator configuration. |
| VCAP1, VCAP2 | Core decoupling capacitors | Must connect 2.2 µF X7R ceramic caps close to pins to stabilize internal LDO output; critical for 600 MHz stability. |
| NRST | Active-low reset input | Asynchronous reset with Schmitt trigger; supports external pull-up and debouncing; resets all digital logic except backup domain. |
| BOOT0 | Boot mode selection | High at power-up selects system memory bootloader; low selects user flash; must be sampled during reset sequence. |
| PA13/PA14 | SWDIO/SWCLK debug interface | Dedicated SWD pins for authenticated debug access; supports trace via ETM with 2 KB embedded buffer. |
| PD0/PD1 | OSC_IN/OSC_OUT | Connects to 4–50 MHz external crystal for precise clock generation; required for USB/Ethernet timing compliance. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Memory Controller (FMC) | Supports parallel NOR/NAND/PSRAM up to 32-bit data bus - enables direct interface to external display frame buffers or legacy industrial memory modules. |
| Octo-SPI with XiP | Runs code directly from serial PSRAM/NOR/HyperFlash™ at up to 200 MHz - eliminates need for external SDRAM in cost-sensitive HMI designs. |
| FD-CAN with protocol engine | Full CAN FD 2.0B compliance (up to 5 Mbps data phase) with hardware message filtering and timestamping - meets ISO 11898-1:2015 for automotive ECU gateways. |
| NeoChrom GPU2D | Hardware-accelerated 2D graphics with perspective-correct texture mapping and arbitrary-angle rotation - reduces CPU load by >70% in GUI rendering vs software-only implementation. |
| Secure Boot & Lifecycle | Certificate-based debug authentication and secure hide protection area (HDP) - prevents unauthorized firmware extraction and enables field-revocable debug access. |
Applications
| Industrial HMI Gateway | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Touch-enabled factory floor panel with real-time PLC communication and local video overlay. IC Role / Device Role / Timing Role: Main application processor managing LCD-TFT controller (XGA), FD-CAN bus monitoring, and Ethernet backhaul to SCADA. Use Value: NeoChrom GPU2D renders animated status overlays without CPU intervention; dual FD-CAN interfaces enable simultaneous UDS and OEM-specific diagnostic sessions. |
Use Scenario: Handheld OBD-II scanner supporting CAN FD, UDS, and DoIP protocols for Tier-1 service centers. IC Role / Device Role / Timing Role: Central MCU executing ISO 14229-1 stack, managing dual FD-CAN transceivers, and driving USB-C PD for charging and PC connectivity. Use Value: Hardware FD-CAN timestamping ensures sub-microsecond message correlation; UCPD controller enables seamless USB-C cable detection and power negotiation. |
| Edge AI Sensor Hub | Motor Control Gateway |
Use Scenario: Vibration/audio sensor node performing on-device anomaly detection using lightweight CNN models. IC Role / Device Role / Timing Role: Real-time inference host with ADF filtering microphone inputs, CORDIC for FFT preprocessing, and secure OTA update via SFI/SFU. Use Value: 64+64 KB TCM RAM isolates neural network weights and inference stack from OS tasks; TRNG and PKA enable signed model updates. |
Use Scenario: Multi-axis servo drive coordinating EtherCAT slave timing, PWM generation, and safety monitoring. IC Role / Device Role / Timing Role: Motion controller running FOC algorithms, managing 23 timers for synchronized PWM, ADC sampling, and watchdog supervision. Use Value: Dual GPDMA controllers offload ADC-to-PWM feedback loops; LPTIM timers maintain precise timing in Stop mode during idle cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32H743VIT6 | Higher flash (2 MB) and RAM (1 MB), no integrated SMPS, lacks UCPD and ADF blocks. | Better suited for complex RTOS-based applications requiring large code footprint but no USB-C PD or voice processing. | Select when needing larger memory and legacy USB-A connectivity instead of USB-C PD. |
| STM32H753IIK6 | Same core and memory size, adds cryptographic accelerators (AES-GCM, SHA-2), no NeoChrom GPU2D or Chrom-ART. | Optimized for secure IoT edge nodes requiring TLS offload but no advanced graphics or motor control peripherals. | Select when security acceleration outweighs graphics capability and FD-CAN is not required. |
Compared with STM32H743VIT6 and STM32H753IIK6, the STM32H7R3A8I6 uniquely balances FD-CAN, USB-C PD, and GPU2D in a compact LQFP100 package - making it optimal for space-constrained, graphics-aware, automotive-grade edge devices where secure boot and low-power operation are mandatory.
Availability
STM32H7R3A8I6 is available at Aetrix Electronics and suitable for industrial HMI, automotive diagnostic tools, and edge AI sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for STM32H7R3A8I6 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, analog ICs, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The STM32H7R series targets cost-optimized, high-performance embedded applications demanding security, graphics, and automotive-grade connectivity - delivering certified secure boot, FD-CAN, and GPU acceleration in scalable LQFP/TFBGA packages.
FAQ
What is the maximum operating frequency and supported voltage range for STM32H7R3A8I6?
The STM32H7R3A8I6 operates at up to 600 MHz with a core supply range of 1.05–1.32 V (VCORE), achieved via internal LDO or external SMPS. Application I/O voltage is 1.71–3.6 V, supporting mixed-voltage interfacing with legacy peripherals and sensors without level shifters.
Does STM32H7R3A8I6 support secure firmware updates over-the-air?
Yes - it implements Secure Firmware Installation/Update (SFI/SFU) using embedded Root Secure Services (RSS), public-key acceleration (PKA), and HASH hardware. Updates require ECDSA-signed images verified against keys stored in the Secure Hide Protection Area (HDP), ensuring tamper-resistant field upgrades.
How many FD-CAN interfaces does STM32H7R3A8I6 integrate, and what protocol versions do they support?
The device integrates two fully independent FD-CAN controllers compliant with ISO 11898-1:2015. Each supports Classical CAN and CAN FD (up to 5 Mbps data phase), with hardware timestamping, message filtering, and loopback self-test modes - enabling dual-bus automotive gateway architectures.
Is the NeoChrom GPU2D accelerator usable without external DRAM?
Yes - NeoChrom GPU2D operates directly on internal SRAM and TCM memory. With 384 KB AXI SRAM and optional remap of 128 KB to TCM, it supports full XGA (1024×768) framebuffer storage and rendering without external DRAM, reducing BOM cost and PCB complexity.
STM32H7R3A8I6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 169-UFBGA
- Series:
- STM32H7
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M7
- Core Size:
- 32-Bit
- Speed:
- 600MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, MDIO, MMC/SD/SDIO, QSPI, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 116
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 616K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32H7R3A8I6 FAQ
1.How can I place an order for STM32H7R3A8I6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32H7R3A8I6 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 STM32H7R3A8I6 reliable?
The price and inventory of STM32H7R3A8I6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32H7R3A8I6 is usually 5 days.
3.What payment methods are accepted for STM32H7R3A8I6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32H7R3A8I6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32H7R3A8I6?
STM32H7R3A8I6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32H7R3A8I6 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 STM32H7R3A8I6?
For technical support, including STM32H7R3A8I6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32H7R3A8I6 requirements.
6.How does Aetrix verify that STM32H7R3A8I6 is sourced from the original manufacturer or authorized distributors?
All STM32H7R3A8I6 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 STM32H7R3A8I6 meets industry standards.
7.What is the process for return or replacement of STM32H7R3A8I6?
All STM32H7R3A8I6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32H7R3A8I6, 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 STM32H7R3A8I6 part is unused and in its original packaging.
Return procedure for STM32H7R3A8I6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32H7R3A8I6 Tags
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