My Inquiry
My Account
STMicroelectronics STM32F103VGT7
- Part No.:
- STM32F103VGT7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F103VGT7.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,605
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F103VGT7 from STMicroelectronics is an ARM® Cortex®-M3 32-bit 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 STM32F103VGT7 datasheet, STM32F103VGT7 pinout, STM32F103VGT7 application, or STM32F103VGT7 equivalent, key selection criteria include Flash size (1 MB), LQFP100 package compatibility, integrated USB/CAN dual-interface capability, and support for 5 V-tolerant I/Os across 80 pins - critical for embedded HMI, PLC I/O modules, and servo drive firmware platforms.
Technical Context
The STM32F103VGT7 implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), supporting deterministic interrupt handling via NVIC and hardware division/multiplication for control-loop computation. Its clock system integrates dual oscillators (4–16 MHz HSE + 32 kHz LSE) with PLL-based frequency synthesis to feed CPU, USB, and CAN peripherals independently.
Peripheral integration includes a flexible static memory controller (FSMC) supporting NOR/PSRAM/NAND, LCD parallel interface (8080/6800 modes), and 12-channel DMA servicing ADC, DAC, SPI, I²C, USART, and SDIO - enabling concurrent high-bandwidth data acquisition, display refresh, and serial protocol stacks without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ARM Cortex-M3 with MPU; enables real-time task isolation and secure firmware partitioning in safety-aware applications. |
| CPU Frequency | 72 MHz max; delivers 1.25 DMIPS/MHz performance for sub-1 µs PID loop execution in motor control. |
| Flash Memory | 1 MB; supports dual-bank operation and EEPROM emulation for robust firmware updates and parameter storage. |
| SRAM | 96 KB; sufficient for RTOS kernel, TCP/IP stack buffers, and multi-channel sensor fusion algorithms. |
| Analog Peripherals | 3 × 12-bit ADCs (21 ch), 2 × 12-bit DACs; enables simultaneous current/voltage/temperature sampling and analog output for closed-loop actuation. |
| Communication Interfaces | USB 2.0 FS, CAN 2.0B, 5 × USART, 3 × SPI, 2 × I²C; supports industrial connectivity including Modbus RTU over RS-485 and USB CDC virtual COM port debugging. |
| Timers | 17 timers including 2 × motor-control PWM timers with dead-time insertion and emergency stop; directly drives 3-phase inverter gate drivers. |
| I/O Pins | 80 GPIOs, 5 V-tolerant, all mappable to 16 EXTI lines; simplifies mixed-voltage board design and external interrupt routing for encoder/safety inputs. |
Pinout & Package
LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified - suitable for automated SMT assembly and thermal management in compact industrial enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power domains with separate decoupling requirements per datasheet Section 5.3.6. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Configurable as push-pull/open-drain, pull-up/pull-down; 5 V-tolerant on all except analog inputs and JTAG/SWD pins. |
| PA11/PA12 | USB D+/D− | Dedicated full-speed USB transceiver pins requiring 1.5 kΩ pull-up on D+ for device enumeration. |
| PB8/PB9 | CAN RX/TX | Differential CAN bus interface compliant with ISO 11898-1; requires external transceiver (e.g., TJA1050) for physical layer. |
| PC13–PC15 | RTC oscillator inputs | Connects to 32.768 kHz crystal; enables battery-backed real-time clock and low-power wake-up timing. |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; accepts 10 µs minimum pulse width per Section 5.3.15. |
| JTMS, JTCK, JTDO, JTDI | JTAG/SWD debug | Supports Serial Wire Debug (SWD) with 2-pin minimal footprint or full JTAG for boundary scan and trace. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Supports external NOR flash, PSRAM, and NAND with configurable timing - enables boot-from-external-memory and data logging to parallel memory. |
| Triple 12-bit ADC with triple-sample-and-hold | Simultaneous sampling of three analog signals (e.g., phase currents in BLDC motor) with <1 µs conversion time - essential for FOC algorithms. |
| Dual 12-bit DAC with DMA-triggered update | Generates precise analog reference voltages or waveform outputs synchronized to timer events - used for programmable power supply setpoints or audio tone generation. |
| Motor Control PWM Timers (TIM1/TIM8) | Integrated dead-time insertion, complementary outputs, and emergency brake input - eliminates external logic for IGBT/MOSFET gate driver protection. |
| Temperature Sensor + VREFINT | On-die temperature sensor calibrated to ±1.5°C accuracy; internal voltage reference enables ratiometric ADC measurements independent of supply drift. |
| Low-Power Modes (Stop/Standby) | Current draw as low as 2.3 µA in Standby mode with RTC active - extends battery life in remote sensor nodes and portable HMI devices. |
Applications
| Industrial Motor Drive | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: 3-phase AC induction motor control using Field-Oriented Control (FOC) with current feedback and position estimation. IC Role / Device Role / Timing Role: Primary MCU executing real-time FOC algorithm, generating six PWM outputs with synchronized ADC sampling and CAN-based command interface. Use Value: Integrated motor-control timers with dead-time generation eliminate external gate-driver logic; 1 MB Flash accommodates complex motion profiles and safety firmware layers. |
Use Scenario: Modular digital input/output expansion unit communicating with main PLC CPU via CANopen or Modbus over CAN. IC Role / Device Role / Timing Role: Interface controller managing opto-isolated DI/DO banks, performing debounce filtering, and buffering serial protocol packets. Use Value: 80 GPIOs with EXTI mapping enable fast edge-triggered interrupt response; CAN peripheral handles deterministic cyclic communication without software polling overhead. |
| USB-Capable Embedded HMI | Smart Energy Metering Terminal |
Use Scenario: Touchscreen-based human-machine interface with local data visualization, configuration storage, and PC connectivity. IC Role / Device Role / Timing Role: Application processor running lightweight GUI framework, interfacing with LCD via 8080-mode parallel bus and USB CDC for firmware updates. Use Value: LCD parallel interface supports 8-/16-bit bus widths up to 10 MHz; USB full-speed peripheral enables plug-and-play driverless communication with Windows/Linux hosts. |
Use Scenario: DIN-rail mounted electricity meter collecting voltage/current/energy data and transmitting via RS-485 or NB-IoT gateway. IC Role / Device Role / Timing Role: Data concentrator aggregating metrology IC outputs (e.g., ADE7953), computing kWh, and managing secure communication stacks. Use Value: Triple ADCs sample multiple CT/PT channels simultaneously; 96 KB SRAM buffers 15-minute load profile data during comms outage; RTC maintains accurate billing timestamps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit ARM Cortex-M3 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103ZET6 | Same core/peripherals but 512 KB Flash, LQFP144 package (112 GPIOs) | Higher I/O count and larger package footprint; suited for designs needing >80 pins or additional FSMC banks | Select when board layout allows LQFP144 and application requires extra GPIOs or external memory bandwidth beyond LQFP100 limits. |
| STM32F407VGT6 | Cortex-M4F core, 168 MHz, FPU, 1 MB Flash, enhanced DSP instructions | Required for floating-point math (e.g., FFT-based power quality analysis) or higher throughput real-time control | Choose when migrating from F1 to F4 for computational headroom, accepting higher cost and power consumption for advanced signal processing. |
Compared with STM32F103ZET6, the VGT7 offers identical peripheral sets in a smaller LQFP100 footprint with full 1 MB Flash - ideal for space-constrained motor drives. Against STM32F407VGT6, it trades FPU and clock speed for lower BOM cost and proven qualification in long-lifecycle industrial deployments.
Availability
STM32F103VGT7 is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controller (PLC) I/O modules, and embedded HMI terminals requiring stable component supply and long-term manufacturing continuity.
Supply support for STM32F103VGT7 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, power management ICs, sensors, and automotive-grade components since 1987.
The STM32F103xG series belongs to ST's mainstream performance-line ARM Cortex-M3 portfolio, engineered specifically for cost-sensitive industrial automation, motor control, and consumer appliance applications demanding rich analog integration and real-time responsiveness.
FAQ
What is the maximum operating temperature range for the STM32F103VGT7?
The STM32F103VGT7 is rated for industrial temperature range: –40 °C to +85 °C ambient, verified per datasheet Section 5.3.1 and Table 10. This rating applies to all electrical characteristics including Flash programming, ADC linearity, and USB functionality - no derating required within this range.
Does the STM32F103VGT7 support USB device mode without external PHY?
Yes - the STM32F103VGT7 integrates a full-speed USB 2.0 device controller with on-chip transceiver. Only external 1.5 kΩ pull-up resistor on PA12 (D+) is required for enumeration; no external PHY or level-shifting components are needed for standard USB CDC or HID class implementations.
Can the internal RC oscillators be used for USB or CAN timing?
No - USB and CAN require precise clock sources with ≤±1.5% tolerance. The internal 8 MHz RC oscillator has ±1% factory trim but lacks calibration for temperature/voltage drift; only the 4–16 MHz external crystal (HSE) or PLL-derived clocks meet USB/CAN timing specifications per Sections 5.3.6 and 5.3.18.
How many external interrupt lines are available on the STM32F103VGT7?
The STM32F103VGT7 provides 16 external interrupt/event lines (EXTI0–EXTI15), each configurable to trigger on rising/falling edges or both. All 80 GPIOs can be mapped to these 16 lines via AFIO_EXTICR registers - enabling flexible interrupt routing for encoder quadrature, safety stop, or pushbutton inputs.
STM32F103VGT7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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:
- 80
- 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:
STM32F103VGT7 FAQ
1.How can I place an order for STM32F103VGT7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F103VGT7 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 STM32F103VGT7 reliable?
The price and inventory of STM32F103VGT7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F103VGT7 is usually 5 days.
3.What payment methods are accepted for STM32F103VGT7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F103VGT7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F103VGT7?
STM32F103VGT7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F103VGT7 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 STM32F103VGT7?
For technical support, including STM32F103VGT7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F103VGT7 requirements.
6.How does Aetrix verify that STM32F103VGT7 is sourced from the original manufacturer or authorized distributors?
All STM32F103VGT7 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 STM32F103VGT7 meets industry standards.
7.What is the process for return or replacement of STM32F103VGT7?
All STM32F103VGT7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F103VGT7, 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 STM32F103VGT7 part is unused and in its original packaging.
Return procedure for STM32F103VGT7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F103VGT7 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
