STMicroelectronics STM32F100V8T7B

Overview

STM32F100V8T7B from STMicroelectronics is a low- to medium-density value-line ARM® Cortex®-M3 microcontroller featuring 64 KB Flash, 8 KB SRAM, 24 MHz max CPU frequency, 12-bit ADC with 16 channels, and dual 12-bit DACs. It integrates up to 8 communication interfaces-including 3 USARTs, 2 I²C, 2 SPI, and CEC-and supports industrial control, sensor node processing, and motor drive feedback loops.

For engineers reviewing the STM32F100V8T7B datasheet, STM32F100V8T7B pinout, STM32F100V8T7B application, or STM32F100V8T7B equivalent, key selection considerations include its LQFP100 package, 5 V-tolerant GPIOs (up to 80 pins), RTC with VBAT backup, SWD/JTAG debug support, and 2.0–3.6 V supply range for cost-sensitive embedded designs.

Technical Context

The STM32F100V8T7B implements an ARM Cortex-M3 core with single-cycle multiplication and hardware division, delivering 1.25 DMIPS/MHz performance at 24 MHz. Its clock system includes a 4–24 MHz external crystal oscillator, factory-trimmed 8 MHz internal RC, 40 kHz LSI, and PLL for CPU clock generation.

It features a 7-channel DMA controller servicing timers, ADC, SPI, I²C, USART, and DAC peripherals; nested vectored interrupt controller (NVIC) supporting up to 68 interrupts; and power management with Sleep, Stop, and Standby modes plus programmable voltage detector (PVD) and VBAT-supplied RTC/backup registers.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F072RBT6, the STM32F100V8T7B provides deterministic analog output and HDMI-CEC control at lower clock speed; versus STM32F103VCT6, it trades Flash/SRAM capacity for lower cost and power in fixed-function applications.

Availability

STM32F100V8T7B is available at Aetrix Electronics and suitable for industrial sensor nodes, motor feedback controllers, smart meter interface modules, and home automation hubs requiring stable component supply across multi-year production cycles.

Supply support for STM32F100V8T7B 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, MEMS, and automotive-grade components since 1987.

The STM32F100 value line targets cost-sensitive, high-volume embedded applications demanding robust analog integration, low-power operation, and industrial-grade reliability - particularly in white goods, building controls, and entry-level industrial automation.

FAQ

What is the maximum operating temperature range for the STM32F100V8T7B?

The STM32F100V8T7B is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 5.3.1 of the official datasheet (DocID16455 Rev 9), where ambient operating conditions specify TA = –40 to +85 °C with VDD = 2.0–3.6 V. Thermal derating is not required within this range under normal PCB layout and airflow conditions.

Does the STM32F100V8T7B support USB connectivity?

No, the STM32F100V8T7B does not include a USB peripheral. Unlike higher-density STM32F103 variants, this value-line device omits USB OTG and USB device controllers. Communication is supported via USART (with IrDA/LIN), I²C, SPI, and CEC - making it suitable for non-USB industrial interfaces where cost and power efficiency are prioritized over host/device enumeration.

How many independent PWM outputs can be generated simultaneously?

The STM32F100V8T7B supports up to 12 independent PWM outputs: six from the advanced-control timer (TIM1), two from TIM2, two from TIM3, and two from TIM4 - all configurable with complementary outputs and dead-time insertion. This is validated in Table 3 (Timer feature comparison) and Section 2.2.15 of the datasheet, confirming full PWM channel allocation across all timers except basic timers (TIM6/TIM7).

Is the internal 8 MHz RC oscillator factory-trimmed, and what is its accuracy?

Yes, the internal 8 MHz RC oscillator is factory-trimmed to ±1% accuracy at 25 °C and VDD = 3.3 V, as specified in Table 23 (HSI oscillator characteristics) of the datasheet. Accuracy degrades to ±2% over full temperature and voltage range (–40 to +85 °C, 2.0–3.6 V), making it suitable for non-critical timing tasks like system startup or UART baud rate generation when external crystal is unavailable.