STMicroelectronics STM32F103VGT6TR

Overview

STM32F103VGT6TR 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 STM32F103VGT6TR datasheet, STM32F103VGT6TR pinout, STM32F103VGT6TR application, or STM32F103VGT6TR equivalent, key selection considerations include its LQFP100 package with 80 I/Os, dual 12-bit DACs, flexible static memory controller (FSMC), and support for multiple low-power modes (Sleep/Stop/Standby) with VBAT-backed RTC.

Technical Context

The device implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), enabling deterministic real-time execution and secure peripheral access partitioning. Its clock system integrates dual oscillators (4–16 MHz HSE + 32 kHz LSE), programmable PLL, and factory-trimmed 8 MHz HSI for rapid startup and precise timing across USB, CAN, and ADC subsystems.

Peripheral architecture features a hierarchical AHB/APB bus matrix supporting concurrent DMA transfers to timers, ADCs, USARTs, SPIs, and I²Cs. The FSMC provides hardware-timed parallel interfaces for NOR/PSRAM/NAND memories and LCD modules, while nested vectored interrupt controller (NVIC) delivers sub-12-cycle interrupt latency for time-critical control loops.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F407VGT6, the STM32F103VGT6TR offers superior FSMC and motor-control timer integration at lower cost and power, while STM32F103ZET6 extends I/O scalability within the same architecture - making the VGT6 optimal for space-constrained, cost-sensitive motor and metering designs.

Availability

STM32F103VGT6TR is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, automotive body controllers, and medical infusion pumps requiring stable component supply across extended product lifecycles.

Supply support for STM32F103VGT6TR 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 ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STM32F103xG series belongs to ST's mainstream performance-line MCUs, engineered specifically for cost-sensitive real-time control applications demanding rich analog integration, fieldbus connectivity (CAN/USB), and deterministic interrupt response.

FAQ

What is the maximum operating temperature range for STM32F103VGT6TR?

The STM32F103VGT6TR is rated for industrial temperature range: –40 °C to +85 °C ambient. This is validated per ST's specification document DocID16554 Rev 4, Section 5.3.1, and applies to all LQFP100-packaged variants of the STM32F103xG family under 3.3 V supply conditions.

Does STM32F103VGT6TR support USB device mode only, or also host mode?

The STM32F103VGT6TR integrates a USB 2.0 full-speed device-only controller - it does not support USB host or OTG functionality. The peripheral lacks dedicated host PHY, SOF generation, and session request protocol logic required for host operation.

Can the internal 8 MHz RC oscillator be used as system clock without calibration?

Yes - the internal 8 MHz HSI oscillator is factory-trimmed to ±1% accuracy at 25 °C and can serve as system clock source immediately after reset. However, for USB or CAN timing compliance, ST recommends using the PLL with HSE (4–16 MHz crystal) as the clock source.

How many independent PWM outputs can be generated simultaneously on STM32F103VGT6TR?

Up to 32 independent PWM outputs are possible: TIM1 and TIM8 each provide 6 complementary channels (12 total), TIM2–TIM5 offer 4 channels each (16 total), and TIM3/TIM4 add 2 more channels each (4 total), all configurable via GPIO remapping and AFIO register settings.