STMicroelectronics STM32F103VGT6J

Overview

STM32F103VGT6J from STMicroelectronics is an ARM® Cortex®-M3 based 32-bit microcontroller in LQFP100 package, 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 STM32F103VGT6J datasheet, STM32F103VGT6J pinout, STM32F103VGT6J application, or STM32F103VGT6J equivalent, key selection criteria include Flash size (1 MB), 100-pin LQFP package compatibility, dual 12-bit DAC support, 72 MHz CPU clock capability, and integrated USB/CAN coexistence for embedded gateway designs.

Technical Context

The STM32F103VGT6J implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), supporting deterministic interrupt latency via Nested Vectored Interrupt Controller (NVIC) and up to 112 GPIOs mapped across 16 external interrupt vectors. Its clock system integrates dual oscillators (4–16 MHz HSE + 32 kHz LSE) and a PLL enabling precise 72 MHz system clock derivation.

Peripheral integration includes a flexible static memory controller (FSMC) supporting NOR/PSRAM/NAND, LCD parallel interface (8080/6800 modes), and 17 timers - among them two 16-bit motor control timers with dead-time generation and emergency stop, plus SysTick and watchdog timers for safety-critical timing functions.

Key Specifications

Pinout & Package

LQFP100 package: 100-pin low-profile quad flat package, 14 × 14 mm body, 0.5 mm pitch, exposed thermal pad (EP), RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit ARM Cortex-M3 microcontroller applications.

Compared with STM32F103ZET6, the STM32F103VGT6J offers higher Flash density in a smaller LQFP100 package; versus STM32F407VGT6, it delivers lower power and proven qualification for cost-sensitive industrial control - without FPU overhead or Ethernet complexity.

Availability

STM32F103VGT6J is available at Aetrix Electronics and suitable for industrial motor drives, building automation gateways, medical infusion pumps, and energy meter data concentrators requiring stable component supply across multi-year production cycles.

Supply support for STM32F103VGT6J 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 targets cost-optimized, high-reliability industrial and consumer applications demanding rich analog integration, real-time control, and dual-protocol connectivity (USB + CAN) in compact packages.

FAQ

What is the maximum operating frequency and Flash endurance specification for STM32F103VGT6J?

The STM32F103VGT6J operates at up to 72 MHz using its internal PLL with external 4–16 MHz crystal; Flash endurance is rated for 10,000 write/erase cycles per sector with data retention exceeding 20 years at 55 °C, per ST's DocID16554 Rev 4 Section 5.3.9 and Table 30.

Does STM32F103VGT6J support USB device mode without external components?

Yes - the part integrates a full-speed USB 2.0 transceiver compliant with USB Specification Revision 2.0. It requires only passive termination (1.5 kΩ pull-up on D+), no external PHY or level-shifting components, and supports standard device classes including CDC, HID, and MSC out of reset.

How many ADC channels can be simultaneously sampled with hardware synchronization?

Up to three ADCs (ADC1, ADC2, ADC3) can be triggered synchronously using the common external event or timer TRGO signal. Each supports up to 21 channels, and triple-sample-and-hold enables simultaneous acquisition across all three converters - critical for motor phase current measurement.

Is the LQFP100 package of STM32F103VGT6J RoHS-compliant and lead-free?

Yes - the LQFP100 package is RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level (MSL) 3. It carries ST's ECOPACK® environmental certification, with halogen-free materials and conformal coating compatibility verified per DocID16554 Section 6.3.