STMicroelectronics STM32F103VBI6TR

Overview

STM32F103VBI6TR from STMicroelectronics is a medium-density performance-line Arm® Cortex®-M3 microcontroller featuring 128 KB Flash, 20 KB SRAM, 72 MHz CPU frequency, USB 2.0 full-speed interface, and CAN 2.0B Active controller - deployed in industrial motor control systems requiring real-time communication and analog sensing.

For engineers reviewing the STM32F103VBI6TR datasheet, STM32F103VBI6TR pinout, STM32F103VBI6TR application, or STM32F103VBI6TR equivalent, key selection considerations include its LFBGA100 package, dual 12-bit ADCs with temperature sensor, 9 communication interfaces (including USB/CAN), and support for SWD/JTAG debug in embedded control designs.

Technical Context

The device integrates an Arm Cortex-M3 core with nested vectored interrupt controller (NVIC), 24-bit SysTick timer, and three 16-bit general-purpose timers supporting PWM, quadrature encoder input, and dead-time generation for motor control. Its clock system includes 4–16 MHz HSE crystal oscillator, 8 MHz factory-trimmed HSI RC, 40 kHz LSI RC, and PLL for 72 MHz system clock.

Peripherals are tightly coupled via 7-channel DMA supporting concurrent transfers for ADC, SPI, I2C, USART, and timers; memory-mapped I/O enables up to 80 5 V-tolerant pins mapped across 16 external interrupt vectors, with CRC calculation unit and 96-bit unique ID for firmware integrity and device identification.

Key Specifications

Pinout & Package

LFBGA100 package with exposed thermal pad (ball A1–J10 layout), 10 × 10 mm footprint, 0.8 mm ball pitch, RoHS-compliant ECOPACK® construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103C8T6, the STM32F103VBI6TR adds CAN and 64 more Flash KB in the same LFBGA100 footprint; versus STM32F303VCT6, it trades FPU and ADC resolution for integrated USB and lower price in established industrial designs.

Availability

STM32F103VBI6TR is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, USB human interface devices, and smart energy gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32F103VBI6TR 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 products for industrial, automotive, and consumer markets.

The STM32F103x series targets cost-sensitive, high-reliability embedded control applications - emphasizing real-time responsiveness, mixed-signal integration, and long-term availability for industrial automation and appliance manufacturers.

FAQ

What is the maximum operating temperature range for STM32F103VBI6TR?

The STM32F103VBI6TR is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 5.3.1 of DS5319 Rev 20, with thermal derating applied above 70 °C for sustained 72 MHz operation. The LFBGA100 package's thermal pad enables effective heat dissipation in enclosed enclosures.

Does STM32F103VBI6TR support USB device mode without external PHY?

Yes - it integrates a full-speed USB 2.0 device transceiver with on-chip pull-up resistors and descriptor handling logic. No external PHY or level-shifter is required; only standard USB D+/D− routing and 1.5 kΩ pull-up on D+ are needed for enumeration per Section 2.3.20 of the datasheet.

How many independent PWM channels can be generated simultaneously?

Up to 16 independent PWM outputs are possible: 4 per 16-bit general-purpose timer (3 timers × 4 = 12), plus 4 complementary outputs from the motor control timer. All channels support programmable polarity, dead-time insertion (motor timer only), and synchronization via trigger events as defined in Table 4 and Section 2.3.15.

Is the internal temperature sensor calibrated at factory?

Yes - the temperature sensor output is factory-calibrated against reference temperatures at 25 °C and 110 °C, with calibration values stored in system memory (addresses 0x1FFFF7AC and 0x1FFFF7B0). Accuracy is ±1.5 °C over the full operating range, per Section 5.3.19 and Table 51 in DS5319 Rev 20.