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STMicroelectronics STM32F107RBT6
- Part No.:
- STM32F107RBT6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F107RBT6.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,002
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Product details
Overview
STM32F107RBT6 from STMicroelectronics is a 32-bit ARM Cortex-M3 microcontroller in the Connectivity line, featuring 128 KB Flash, 64 KB SRAM, dual CAN 2.0B interfaces, USB OTG FS controller with on-chip PHY, and 10/100 Ethernet MAC with IEEE 1588 hardware support. It operates at up to 72 MHz, integrates two 12-bit ADCs (16-channel, 1 µs conversion), two 12-bit DACs, and supports real-time industrial networking applications requiring deterministic communication.
For engineers reviewing the STM32F107RBT6 datasheet, STM32F107RBT6 pinout, STM32F107RBT6 application, or STM32F107RBT6 equivalent, key selection criteria include Ethernet MAC + dual CAN coexistence, USB OTG host/device capability, 72 MHz real-time processing headroom, and LQFP64 package compatibility with legacy STM32F10x PCB footprints.
Technical Context
The STM32F107RBT6 implements a tightly coupled ARM Cortex-M3 core with Harvard bus architecture, supporting single-cycle multiplication and hardware division for deterministic control loop execution. Its connectivity subsystem integrates independent DMA channels for Ethernet (4 KB dedicated SRAM), USB OTG (1.25 KB SRAM), and dual CAN (512 bytes SRAM), enabling concurrent high-bandwidth peripheral operation without CPU intervention.
Timing architecture includes three PLLs (main, PLL2, PLL3) supporting simultaneous clock domains: 72 MHz for CPU/core peripherals, 48 MHz for USB, and configurable frequencies for Ethernet MII/RMII and I2S audio interfaces. All 51 GPIOs are 5 V-tolerant and support remapping across multiple alternate functions-including Ethernet MAC pins, CAN TX/RX, and USB D+/D−-enabling flexible board-level routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 @ 72 MHz; delivers 1.25 DMIPS/MHz for real-time deterministic firmware execution |
| Memory | 128 KB Flash + 64 KB SRAM; sufficient for dual-protocol stacks (TCP/IP + CANopen) with bootloader space |
| Ethernet | 10/100 MAC with dedicated DMA and 4 KB SRAM; enables zero-copy packet buffering and IEEE 1588 timestamping |
| USB | USB 2.0 Full-Speed OTG with on-chip PHY and 1.25 KB SRAM; supports HNP/SRP/ID for role switching without external transceiver |
| CAN Interfaces | 2 × CAN 2.0B controllers with 512 bytes dedicated SRAM; supports concurrent CAN FD-ready arbitration and error handling |
| Analog Peripherals | 2 × 12-bit ADCs (16 ch, 1 µs), 2 × 12-bit DACs; enables closed-loop motor control with synchronized sampling and waveform generation |
| I/O Capability | 51 GPIOs, all 5 V-tolerant and remappable to 16 EXTI lines; simplifies interface consolidation and ESD-hardened signal routing |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad for enhanced thermal dissipation in industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V supply rails with internal voltage regulator; supports stable operation across wide industrial temperature range |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 51 total 5 V-tolerant pins; each supports interrupt, timer capture, and alternate function remapping (e.g., ETH_MII, CAN_RX) |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB transceiver pins with integrated pull-ups; eliminates need for external USB PHY components |
| PA13/PA14/PA15 | SWDIO/SWCLK/NRST | Serial Wire Debug interface with hardware reset; enables non-intrusive debugging and programming in space-constrained designs |
| PC1–PC4, PD8–PD15 | Ethernet MAC signals | MII/RMII interface pins (TX_EN, TXD0–TXD3, RXD0–RXD3, CRS, COL); supports direct connection to standard Ethernet PHY ICs |
| PB8/PB9, PB12/PB13 | CAN1/CAN2 TX/RX | Dual isolated CAN transceiver interfaces; enables redundant fieldbus or multi-network gateway functionality |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN + Ethernet coexistence | Independent SRAM allocation (512 B per CAN, 4 KB for Ethernet) prevents memory contention during concurrent protocol stack execution |
| USB OTG FS with on-chip PHY | Eliminates external transceiver; reduces BOM cost and PCB area while maintaining full-speed device/host/OTG role flexibility |
| IEEE 1588 hardware timestamping | Dedicated registers and MAC logic enable sub-microsecond time synchronization for industrial automation and power grid monitoring |
| GPIO remapping engine | Allows dynamic reassignment of critical signals (e.g., moving ETH_MII to alternate pins) without hardware redesign or layer count increase |
| Temperature sensor + VBAT backup | On-die sensor calibrated to ±1.5°C accuracy; VBAT domain preserves RTC and 42 backup registers during main power loss |
Applications
| Industrial Ethernet Gateway | Automotive Diagnostic Tool |
|---|---|
Use Scenario: Protocol translation between CAN-based vehicle ECUs and Ethernet-based diagnostic servers in workshop environments. IC Role / Device Role / Timing Role: Dual-CAN receiver and TCP/IP Ethernet transmitter with real-time packet forwarding and timestamped logging. Use Value: Concurrent CAN message filtering (via hardware acceptance masks) and Ethernet frame assembly (using dedicated DMA) reduce CPU load to <12% at 500 kbps CAN + 10 Mbps Ethernet throughput. | Use Scenario: Handheld OBD-II scanner supporting UDS, KWP2000, and DoIP protocols over USB and Wi-Fi (via external module). IC Role / Device Role / Timing Role: USB OTG host managing flash storage and diagnostic dongle; CAN controller executing ISO 15765-2 transport layer with precise inter-frame timing. Use Value: Integrated USB PHY and dual CAN eliminate 3 discrete ICs; 72 MHz core ensures sub-20 ms response time for UDS service requests under full diagnostic session load. |
| Energy Meter Communication Hub | Building Automation Controller |
Use Scenario: Smart meter aggregation node collecting data via RS-485 Modbus and transmitting to utility SCADA via Ethernet or cellular modem. IC Role / Device Role / Timing Role: Dual-role USB device (for field technician configuration) and Ethernet MAC (for upstream reporting), with CAN used for local sub-meter coordination. Use Value: IEEE 1588 timestamping aligns energy consumption logs across distributed meters within ±500 ns, satisfying IEC 62056-21 traceability requirements. | Use Scenario: HVAC controller interfacing with BACnet MS/TP (RS-485), KNX (TP), and Ethernet/IP devices in commercial buildings. IC Role / Device Role / Timing Role: Multi-protocol bridge with real-time scheduling: CAN for actuator feedback, USARTs for BACnet/KNX, and Ethernet for supervisory control. Use Value: 16 remappable USARTs and 2 CAN controllers allow native support of 4 distinct building automation protocols without external level shifters or protocol converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar connectivity MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F407VGT6 | ARM Cortex-M4F core, 1 MB Flash, FPU, no native Ethernet MAC (requires external PHY + software stack) | Higher computational throughput for DSP-intensive tasks; lacks integrated Ethernet hardware acceleration | Select when floating-point math or audio processing dominates over deterministic Ethernet timing |
| STM32H743ZIT6 | Cortex-M7 core, dual-bank 2 MB Flash, 1 MB SRAM, integrated Ethernet MAC with DMA and hardware TLS accelerator | Supports secure OTA updates and real-time Linux coexistence; higher power and cost than F107 | Select for next-generation gateways requiring TLS 1.3, TSN, or dual-core RTOS partitioning |
Compared with STM32F407VGT6, the STM32F107RBT6 provides lower-latency Ethernet packet handling via dedicated hardware; compared with STM32H743ZIT6, it offers proven industrial reliability and lower BOM cost for established connectivity applications without security acceleration needs.
Availability
STM32F107RBT6 is available at Aetrix Electronics and suitable for industrial gateways, automotive diagnostic tools, smart energy meters, and building automation controllers requiring stable component supply across extended product lifecycles.
Supply support for STM32F107RBT6 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, specializing in microcontrollers, power management, sensors, and automotive ICs with vertical manufacturing capabilities.
The STM32F107xx series belongs to the Connectivity line, designed specifically for embedded networking applications requiring integrated Ethernet, USB OTG, and dual CAN-targeting industrial control, automotive diagnostics, and smart infrastructure systems.
FAQ
What is the maximum operating temperature range for STM32F107RBT6?
The STM32F107RBT6 is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 5.3.1 of the official datasheet (DocID15274 Rev 10), where electrical characteristics are specified across this range with guaranteed performance for Flash, SRAM, ADC, and Ethernet MAC timing.
Does STM32F107RBT6 support RMII or MII Ethernet physical layer interface?
Yes, the STM32F107RBT6 supports both RMII and MII Ethernet interfaces. Pin definitions for both modes are documented in Table 5 (Pin Definitions) and Figures 3–4 of the datasheet. RMII uses 9 pins (including REF_CLK), while MII requires 16 pins; both are electrically validated per Sections 5.3.19–5.3.21.
Can the USB OTG FS interface operate in host mode without an external PHY?
Yes. The STM32F107RBT6 integrates a full-speed USB 2.0 OTG transceiver with on-chip PHY, enabling native host, device, and OTG operation without external components. This is explicitly stated in Section 2.3.22 and verified in electrical specs Table 46 (USB OTG FS DC characteristics).
How many independent DMA channels are available for peripheral use?
The STM32F107RBT6 features a 12-channel DMA controller, with dedicated request lines assigned to all major peripherals: timers, ADCs, DAC, I2S, SPI, I2C, USARTs, USB OTG, Ethernet MAC, and CAN controllers. Channel allocation and priority mapping are defined in Section 2.3.13 and Table 2 of the datasheet.
STM32F107RBT6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 72MHz
- Connectivity:
- CANbus, Ethernet, I2C, IrDA, LINbus, SPI, UART/USART, USB OTG
- Peripherals:
- DMA, POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F107RBT6 FAQ
1.How can I place an order for STM32F107RBT6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F107RBT6 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 STM32F107RBT6 reliable?
The price and inventory of STM32F107RBT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F107RBT6 is usually 5 days.
3.What payment methods are accepted for STM32F107RBT6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F107RBT6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F107RBT6?
STM32F107RBT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F107RBT6 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 STM32F107RBT6?
For technical support, including STM32F107RBT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F107RBT6 requirements.
6.How does Aetrix verify that STM32F107RBT6 is sourced from the original manufacturer or authorized distributors?
All STM32F107RBT6 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 STM32F107RBT6 meets industry standards.
7.What is the process for return or replacement of STM32F107RBT6?
All STM32F107RBT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F107RBT6, 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 STM32F107RBT6 part is unused and in its original packaging.
Return procedure for STM32F107RBT6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F107RBT6 Tags
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