STMicroelectronics STM32F101VET6TR

Overview

STM32F101VET6TR from STMicroelectronics is a high-density ARM® Cortex®-M3 32-bit microcontroller with 512 KB Flash, 48 KB SRAM, and operating frequency up to 36 MHz. It integrates one 12-bit ADC (16 channels), two 12-bit DACs, nine timers (including watchdogs and SysTick), and ten communication interfaces including USART, SPI, I²C, and USB (via external PHY). It targets industrial control panels requiring deterministic real-time response and integrated analog signal conditioning.

For engineers reviewing the STM32F101VET6TR datasheet, STM32F101VET6TR pinout, STM32F101VET6TR application, or STM32F101VET6TR equivalent, key selection criteria include Flash/SRAM capacity, 12-bit dual DAC support for analog output generation, 36 MHz CPU clock with 1.25 DMIPS/MHz performance, and LQFP100 package compatibility with legacy STM32F10x designs.

Technical Context

The device implements a tightly coupled ARM Cortex-M3 core with Harvard bus architecture, single-cycle multiplication, and hardware divide. Its memory subsystem includes 512 KB of on-chip Flash with error correction, 48 KB SRAM, and a Flexible Static Memory Controller (FSMC) supporting NOR/PSRAM/NAND with configurable timing.

Clock management features a 4–16 MHz external crystal oscillator, factory-trimmed 8 MHz internal RC, and 40 kHz low-power RC with calibration-enabling precise RTC operation and dynamic power mode transitions between Sleep, Stop, and Standby states with VBAT backup.

Key Specifications

Pinout & Package

LQFP100 package with exposed thermal pad (mechanical drawing per ST DocID14610 Rev 9, Table 62); 100-pin low-profile quad flat package, 0.5 mm pitch, JEDEC MS-026 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103VET6, the STM32F101VET6TR omits USB but retains identical analog and timing capabilities-making it optimal for non-USB industrial controllers. Against STM32F072VBT6, it delivers higher determinism, larger memory, and FSMC support at modest cost premium for complex edge devices.

Availability

STM32F101VET6TR is available at Aetrix Electronics and suitable for industrial HMI panels, PLC I/O modules, energy meter data loggers, and building automation sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32F101VET6TR 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 STM32F101 line targets cost-optimized industrial and consumer applications requiring high integration, deterministic real-time behavior, and long-term supply stability-emphasizing Flash density, analog peripheral richness, and legacy-compatible packaging.

FAQ

What is the maximum operating frequency and associated power consumption of STM32F101VET6TR?

The STM32F101VET6TR operates at up to 36 MHz with typical active-mode current of 29 mA at 3.6 V and 36 MHz (code running from Flash, all peripherals enabled). At 8 MHz, current drops to ~12 mA under identical conditions. These values are measured per ST's DocID14610 Rev 9, Table 14 and Table 18, and assume proper decoupling and PCB layout per AN2834 guidelines.

Does STM32F101VET6TR support external memory expansion, and what interfaces are available?

Yes, it integrates a Flexible Static Memory Controller (FSMC) with four chip select outputs supporting asynchronous/synchronous NOR, PSRAM, NAND, and CompactFlash. Timing parameters are fully programmable per DocID14610 Rev 9 Section 5.3.10, enabling direct connection to external memories without address latches or glue logic-commonly used for display frame buffers or firmware storage.

How does the temperature sensor function, and what accuracy can be expected?

The integrated temperature sensor connects to ADC channel 16 and provides calibrated output with ±1.5°C accuracy over –40°C to +85°C (DocID14610 Rev 9, Table 60). It requires no external components and is factory-trimmed; typical use involves single-point calibration at room temperature to achieve ±1°C system-level accuracy in sealed enclosures.

What debug interfaces are supported, and are they accessible in all package variants?

STM32F101VET6TR supports Serial Wire Debug (SWD) and JTAG via dedicated SWDIO, SWCLK, and TMS/TCK/TDO/TDI pins. All signals are routed to dedicated pins in the LQFP100 package (pins 33, 34, 35, 36, 37 per Figure 4), and SWD remains functional even when JTAG is disabled-ensuring reliable in-circuit debugging and programming across production units.