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STMicroelectronics STM32F103RGT7
- Part No.:
- STM32F103RGT7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F103RGT7.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,050
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Product details
Overview
STM32F103RGT7 from STMicroelectronics is a high-density performance-line ARM® Cortex®-M3 microcontroller operating at up to 72 MHz, featuring 1 MB Flash, 96 KB SRAM, USB 2.0 full-speed interface, CAN 2.0B controller, and three 12-bit ADCs with 21 channels - deployed in industrial motor control systems requiring real-time PWM generation, analog sensing, and fieldbus communication.
For engineers reviewing the STM32F103RGT7 datasheet, STM32F103RGT7 pinout, STM32F103RGT7 application, or STM32F103RGT7 equivalent, key selection criteria include Flash/SRAM capacity, integrated USB/CAN peripherals, 72 MHz timing headroom, and LQFP64 package compatibility with legacy PCB footprints.
Technical Context
The STM32F103RGT7 implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), supporting deterministic interrupt latency via Nested Vectored Interrupt Controller (NVIC) and hardware division for real-time control math. Its clock system integrates dual oscillators (8 MHz HSI + 4–16 MHz HSE), PLL-based frequency synthesis, and independent 32 kHz RTC oscillator with calibration.
Peripheral integration includes a flexible static memory controller (FSMC) supporting NOR/PSRAM/NAND, LCD parallel interface (8080/6800 modes), and 12-channel DMA servicing timers, ADCs, DACs, USARTs, SPIs, and I²Cs - enabling concurrent high-bandwidth data movement without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ARM Cortex-M3 with MPU; enables task isolation and secure firmware partitioning in multi-threaded embedded applications. |
| Max Clock Frequency | 72 MHz at 0 wait states; delivers 1.25 DMIPS/MHz (Dhrystone 2.1), sufficient for servo loop execution ≤100 µs. |
| Flash Memory | 1 MB (orderable variant); supports dual-bank operation for safe over-the-air firmware updates without runtime interruption. |
| SRAM | 96 KB; accommodates large buffers for USB CDC ACM, CAN message queues, and FFT-based signal processing. |
| ADC Resolution & Speed | 3 × 12-bit, 1 µs conversion time; enables simultaneous sampling of motor phase currents and temperature feedback in PMSM drives. |
| Communication Interfaces | USB 2.0 FS + CAN 2.0B + 5×USART + 3×SPI + 2×I²C; satisfies mixed-protocol requirements in gateway nodes bridging fieldbus and PC-hosted tools. |
| DAC Outputs | 2 × 12-bit; provides precise analog setpoint generation for voltage/current reference in closed-loop power stages. |
| Timers | 17 timers including 2× motor-control PWM timers with dead-time insertion and emergency stop input; directly controls 3-phase inverter gate drivers. |
Pinout & Package
LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified, rated for industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Separate analog/digital domains; requires local decoupling per STM32 layout guidelines to maintain ADC/DAC accuracy. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 51 total GPIOs; all support external interrupt vectors and most are 5 V-tolerant, simplifying level-shifting with legacy sensors. |
| PA9/PA10 | USART1 TX/RX | Dedicated pins for primary debug/console interface; supports LIN and IrDA protocols out-of-box. |
| PA11/PA12 | USB_DM/USB_DP | Full-speed USB 2.0 physical layer; requires 1.5 kΩ pull-up on DP for device enumeration - no external transceiver needed. |
| PB8/PB9 | CAN_RX/CAN_TX | Dedicated CAN 2.0B interface; compatible with ISO 11898-2 transceivers for robust industrial network connectivity. |
| PA0–PA3, PB0–PB1 | ADC1_IN0–ADC1_IN5 | Five dedicated analog inputs for ADC1; support single-ended or differential sampling with internal temperature sensor channel. |
| PA4–PA7 | DAC_OUT1–DAC_OUT2 | Two buffered analog outputs; each configurable for noise-filtered voltage or current output mode. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC unit | Accelerates firmware image integrity checks and communication frame checksumming (e.g., CAN FD extended frames). |
| Flexible Static Memory Controller (FSMC) | Supports external NOR flash, PSRAM, and NAND with configurable timing - enables boot-from-external-memory or HMI framebuffer expansion. |
| Serial Wire Debug (SWD) | 2-pin debug interface replacing JTAG; reduces PCB footprint while maintaining full trace and breakpoint capability via SWO. |
| Temperature sensor | Integrated calibrated sensor (±1.5°C accuracy); used for thermal derating in motor drives and ambient monitoring in HVAC controllers. |
| VBAT supply domain | Dedicated backup power rail for RTC and 42 bytes of backup registers; retains timekeeping and critical state across main power loss. |
Applications
| Industrial Motor Control | USB-Capable Field Gateway |
|---|---|
Use Scenario: 3-phase BLDC/PMSM drive with Hall/encoder feedback and current sensing. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with dead-time control, and ADC-triggered synchronous sampling. Use Value: Integrated motor timers eliminate external gate driver logic; 72 MHz core ensures sub-100 µs current loop cycle time. |
Use Scenario: Protocol translator between Modbus RTU (RS-485) and USB HID/CDC for PLC configuration. IC Role / Device Role / Timing Role: Dual-role host/peripheral USB controller managing CDC ACM class and UART-to-USB bridging. Use Value: On-chip USB PHY removes need for external transceiver; 1 MB Flash stores multiple protocol stacks and firmware images. |
| Automotive Body Control Module | Smart Energy Meter Interface |
Use Scenario: Centralized lighting, window lift, and door lock control with LIN bus diagnostics. IC Role / Device Role / Timing Role: LIN master node with automatic sync field detection and checksum validation per ISO 9141-2. Use Value: Dedicated USART with LIN break detection and wakeup capability reduces MCU load and extends sleep-mode battery life. |
Use Scenario: Isolated metering front-end interfacing with metrology IC (e.g., ADE7880) via SPI and reporting via RS-485. IC Role / Device Role / Timing Role: High-precision ADC acquisition engine synchronizing with metrology IC's sample clock via EXTI trigger. Use Value: Triple 12-bit ADCs enable simultaneous voltage, current, and neutral current sampling at 1 MSPS aggregate rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103VET6 | LQFP100 package; adds 32 more GPIOs and second CAN interface; same 72 MHz/1 MB/96 KB spec. | Suitable where board space allows larger package and additional peripherals (e.g., dual CAN networks) are required. | Select when pin count >51 or dual CAN is mandatory; avoid if LQFP64 footprint is fixed. |
| STM32F401RET6 | Cortex-M4F core (100 MHz), FPU, 512 KB Flash, 96 KB SRAM; lacks CAN but adds crypto acceleration. | Better for floating-point intensive tasks (e.g., audio processing), but requires external CAN transceiver and redesign for USB timing. | Choose only if FPU or DSP instructions are essential; not drop-in due to peripheral register map and clock tree differences. |
Compared with STM32F103VET6, the RGT7 trades pin count and dual-CAN for compact LQFP64 fit; versus STM32F401RET6, it prioritizes CAN/USB integration and deterministic M3 timing over floating-point throughput - making it optimal for cost-sensitive, protocol-rich industrial edge nodes.
Availability
STM32F103RGT7 is available at Aetrix Electronics and suitable for industrial motor control, USB field gateways, automotive body electronics, and smart energy metering requiring stable component supply across long-lifecycle production programs.
Supply support for STM32F103RGT7 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32F1 series targets cost-sensitive, high-reliability embedded applications demanding rich analog/mixed-signal integration, real-time responsiveness, and industrial-grade robustness - especially in motor control, PLCs, and human-machine interfaces.
FAQ
Does STM32F103RGT7 support USB device mode without external components?
Yes. The part integrates a full-speed USB 2.0 PHY with internal transceiver and 1.5 kΩ pull-up resistor on PA12 (USB_DP). Only a standard USB Type-A connector and ESD protection diodes are required for compliant device-mode operation - no external PHY or pull-up resistor needed.
What is the maximum number of ADC channels usable simultaneously on STM32F103RGT7?
All 21 ADC input channels (across three 12-bit converters) can be sampled concurrently using triple interleaved mode, achieving up to 3 MSPS aggregate throughput. This requires proper DMA configuration and shared prescaler settings - verified in RM0008 reference manual section 11.3.17.
Is the STM32F103RGT7 pin-compatible with other STM32F103 variants in LQFP64?
Yes. It shares identical pinout and electrical characteristics with STM32F103C8T6, STM32F103CBT6, and STM32F103RBT6 in LQFP64 - differing only in Flash size (128 KB to 1 MB) and SRAM (20 KB to 96 KB). Firmware and PCB design are fully interchangeable within this package group.
How does the FSMC interface support external memory expansion on this MCU?
The FSMC provides four chip-select lines with programmable timing for NOR, PSRAM, NAND, and CompactFlash. For example, connecting ISSI IS61LV25616AL SRAM requires configuring Bank1 timing registers for address/data multiplexing, read/write pulse widths, and data hold - all documented in RM0008 section 10.3.3.
STM32F103RGT7 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, I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 51
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 96K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F103RGT7 FAQ
1.How can I place an order for STM32F103RGT7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103RGT7 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 STM32F103RGT7 reliable?
The price and inventory of STM32F103RGT7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103RGT7 is usually 5 days.
3.What payment methods are accepted for STM32F103RGT7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103RGT7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103RGT7?
STM32F103RGT7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103RGT7 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 STM32F103RGT7?
For technical support, including STM32F103RGT7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103RGT7 requirements.
6.How does Aetrix verify that STM32F103RGT7 is sourced from the original manufacturer or authorized distributors?
All STM32F103RGT7 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 STM32F103RGT7 meets industry standards.
7.What is the process for return or replacement of STM32F103RGT7?
All STM32F103RGT7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103RGT7, 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 STM32F103RGT7 part is unused and in its original packaging.
Return procedure for STM32F103RGT7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F103RGT7 Tags
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