STMicroelectronics STM32F101VBT6TR

Overview

STM32F101VBT6TR from STMicroelectronics is a medium-density ARM® Cortex®-M3 32-bit microcontroller with 128 KB Flash, 16 KB SRAM, 36 MHz max CPU frequency, 12-bit ADC (1 µs conversion), and 7 communication interfaces including 3 USARTs, 2 I²C, and 2 SPI. It operates from 2.0–3.6 V and supports industrial temperature range (–40 to +85 °C), deployed in motor control and sensor interface modules requiring deterministic real-time response.

For engineers reviewing the STM32F101VBT6TR datasheet, STM32F101VBT6TR pinout, STM32F101VBT6TR application, or STM32F101VBT6TR equivalent, key selection criteria include Flash/SRAM capacity, 12-bit ADC channel count (up to 16), 5 V-tolerant I/O count (up to 80), PLL clock configuration flexibility, and UFQFPN48 package thermal performance for space-constrained embedded designs.

Technical Context

The STM32F101VBT6TR implements an ARM Cortex-M3 core with Harvard bus architecture, single-cycle multiplication, and hardware divide, enabling deterministic interrupt latency down to 12 cycles. Its nested vectored interrupt controller (NVIC) supports 64 interrupts with programmable priority levels.

Clock management includes dual oscillators (4–16 MHz HSE and 32.768 kHz LSE), internal 8 MHz HSI/40 kHz LSI RC sources, and a PLL supporting CPU clock derivation up to 36 MHz. Power control integrates POR/PDR and a programmable voltage detector (PVD) for supply monitoring.

Key Specifications

Pinout & Package

STM32F101VBT6TR uses a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per STM32F101xx medium-density pin definitions (Table 4, DocID13586 Rev 17).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103VBT6, the STM32F101VBT6TR omits USB/CAN but delivers identical Flash/SRAM and superior analog performance (12-bit ADC vs. 12-bit with faster sampling). Against STM32F072VBT6, it provides stronger real-time capability (Cortex-M3 vs. M0), deterministic interrupt latency, and full motor control timer feature set - critical for servo and inverter designs.

Availability

STM32F101VBT6TR is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, energy metering interfaces, and home automation gateways requiring stable component supply across extended product lifecycles.

Supply support for STM32F101VBT6TR 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 STM32F101xx series belongs to ST's medium-density access line, engineered for cost-optimized, real-time embedded applications demanding balanced performance, peripheral richness, and industrial-grade reliability without USB or CAN overhead.

FAQ

What is the maximum operating temperature range for STM32F101VBT6TR?

The STM32F101VBT6TR is rated for industrial temperature operation from –40 °C to +85 °C, verified per Section 5.3.1 of DocID13586 Rev 17. This range applies to all electrical characteristics including ADC accuracy, clock stability, and I/O drive strength, making it suitable for deployment in uncontrolled ambient environments such as factory floors and outdoor enclosures.

Does STM32F101VBT6TR support in-application programming (IAP)?

Yes, STM32F101VBT6TR supports IAP via its system memory bootloader, accessible through USART1 using the BOOT0 pin. The device allows reprogramming Flash sectors while executing from RAM, enabling field firmware updates without external programmers. Full protocol details and command set are specified in AN2606 (STMicroelectronics Application Note).

How many 16-bit general-purpose timers does STM32F101VBT6TR include?

The STM32F101VBT6TR integrates three 16-bit general-purpose timers (TIM2, TIM3, TIM4), each supporting input capture, output compare, PWM generation, and quadrature encoder interface. These timers operate independently with separate prescalers and auto-reload registers, enabling simultaneous motor phase control and sensor pulse counting without CPU intervention.

Is the UFQFPN48 package option available for STM32F101VBT6TR?

No - STM32F101VBT6TR is exclusively offered in LQFP100 (14 × 14 mm) package, as confirmed by ST's ordering information scheme (Table 52, DocID13586 Rev 17). The "V" in the part number denotes 100-pin LQFP; UFQFPN48 variants exist only for STM32F101C/B-series parts (e.g., STM32F101CBT6), not the "V" density grade.