STMicroelectronics STM32F101V8T6

Overview

STM32F101V8T6 from STMicroelectronics is a medium-density ARM® Cortex®-M3 microcontroller in LQFP100 package, delivering 36 MHz CPU frequency, 64 KB Flash, 10 KB SRAM, and integrated peripherals including six timers, 12-bit ADC (1 µs), three USARTs, two I²C, two SPI, and DMA controller - deployed in industrial sensor nodes and motor control interfaces requiring deterministic real-time response.

For engineers reviewing the STM32F101V8T6 datasheet, STM32F101V8T6 pinout, STM32F101V8T6 application, or STM32F101V8T6 equivalent, key selection criteria include Flash/SRAM size, 100-pin LQFP footprint compatibility, 36 MHz maximum clock with zero-wait-state execution, and support for SWD/JTAG debug in resource-constrained embedded designs.

Technical Context

The STM32F101V8T6 implements an ARM Cortex-M3 core with single-cycle multiplication and hardware division, executing Dhrystone 2.1 at 1.25 DMIPS/MHz. Its clock system integrates 4–16 MHz external crystal oscillator, 8 MHz factory-trimmed internal RC, 40 kHz low-power RC, and PLL for CPU clock generation.

Peripherals are managed via nested vectored interrupt controller (NVIC) and external interrupt/event controller (EXTI), supporting up to 80 5 V-tolerant GPIOs mapped across 16 external interrupt vectors. The 12-bit ADC operates over 0–3.6 V input range with integrated temperature sensor and supports up to 16 channels.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified, with 80 fast I/O pins - 51 of which are 5 V-tolerant and all mappable to 16 external interrupt vectors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103V8T6, this part trades Flash/SRAM headroom for lower BOM cost and identical footprint; versus STM32F072V8T6, it delivers deterministic real-time capability and richer peripheral set at higher power and price.

Availability

STM32F101V8T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, smart meter front-ends, and home automation gateways requiring stable component supply across extended production lifecycles.

Supply support for STM32F101V8T6 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, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components.

The STM32F101 series targets cost-optimized, medium-density embedded applications demanding robust real-time performance, low-power operation, and broad peripheral integration - especially in industrial and consumer control systems.

FAQ

What is the maximum operating frequency and memory configuration of the STM32F101V8T6?

The STM32F101V8T6 operates at up to 36 MHz with zero wait states on Flash, delivering 1.25 DMIPS/MHz. It integrates 64 KB of embedded Flash memory and 10 KB of SRAM, both accessible without wait states under full-speed operation. These values are specified in the June 2015 datasheet (DocID13586 Rev 17) and confirmed across electrical characteristics tables.

Does the STM32F101V8T6 support 5 V-tolerant I/Os, and how many pins are compatible?

Yes, the STM32F101V8T6 supports 5 V-tolerant I/Os on 51 of its 80 general-purpose pins. This tolerance applies when VDD is within 2.0–3.6 V and allows direct interfacing with legacy 5 V logic without external level shifters. Pin definitions are documented in Table 4 (Medium-density STM32F101xx pin definitions) and verified in the LQFP100 pinout diagram (Figure 3).

What debug interfaces does the STM32F101V8T6 provide, and are they pin-compatible with other STM32 families?

The STM32F101V8T6 provides Serial Wire Debug (SWD) and JTAG interfaces via dedicated pins (SWDIO, SWCLK, JTCK, JTMS, JTDO, JTDI). Its SWD implementation is fully compatible with ST-LINK v2/v3 and OpenOCD, and shares identical pin mapping with STM32F103 and STM32F0xx families - enabling reuse of debug hardware and firmware tools across product lines.

Is there hardware support for CRC calculation, and what polynomial is used?

Yes, the STM32F101V8T6 includes a dedicated CRC calculation unit supporting CRC-32 with IEEE 802.3 polynomial (0x04C11DB7). It computes checksums over arbitrary data blocks in hardware, reducing CPU load during firmware updates or communication frame validation. This feature is documented in Section 2.3.3 and electrical characteristics Table 41.