STMicroelectronics STM32F100VDT6B

Overview

STM32F100VDT6B from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 32-bit microcontroller featuring 384 KB Flash, 32 KB SRAM, 24 MHz CPU frequency, dual 12-bit DACs, and 16-channel 12-bit ADC with temperature sensor - deployed in industrial motor control interfaces requiring real-time PWM generation and analog signal conditioning.

For engineers reviewing the STM32F100VDT6B datasheet, STM32F100VDT6B pinout, STM32F100VDT6B application, or STM32F100VDT6B equivalent, key selection considerations include LQFP100 package compatibility, 2.0–3.6 V supply range, SWD/JTAG debug support, and integrated FSMC for external memory expansion in cost-sensitive embedded HMI designs.

Technical Context

The STM32F100VDT6B implements an Arm Cortex-M3 core with single-cycle multiplication and hardware division, executing at up to 24 MHz (1.25 DMIPS/MHz), and integrates nested vectored interrupt controller (NVIC) with 68 maskable interrupts. Its clock system includes dual oscillators (4–24 MHz HSE and 32 kHz LSE), programmable PLL, and factory-trimmed 8 MHz HSI RC source.

Peripheral architecture centers on a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR devices across four chip selects, plus parallel LCD interface (8080/6800 modes). It delivers deterministic real-time control via seven 16-bit general-purpose timers, one advanced-control timer with dead-time generation and emergency stop, and two watchdogs.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in sealed industrial enclosures and compatible with standard reflow profiles (JEDEC J-STD-020).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F100VDT6B, STM32F072RBT6 trades analog integration and memory flexibility for lower cost and power, while STM32F103VCT6 increases compute headroom at the expense of higher active current and thermal load in compact enclosures.

Availability

STM32F100VDT6B is available at Aetrix Electronics and suitable for industrial motor control interfaces, smart energy meter front-ends, portable medical diagnostic tools, and industrial HMI display controllers requiring stable component supply across extended product lifecycles.

Supply support for STM32F100VDT6B 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 semiconductors since 1987.

The STM32F100 Value Line targets cost-sensitive industrial and consumer applications where robust analog integration, low-power operation, and LQFP packaging are prioritized over maximum clock speed or USB connectivity.

FAQ

What is the maximum operating temperature range for STM32F100VDT6B?

The STM32F100VDT6B is rated for industrial temperature range: –40 °C to +85 °C ambient. This is validated per ST's qualification testing (JESD22-A104) and applies to continuous operation under specified voltage and load conditions, with thermal derating above 70 °C per datasheet Section 6.4.

Does STM32F100VDT6B support USB device functionality?

No, the STM32F100VDT6B does not include a USB peripheral. It features up to 11 serial interfaces (3 USARTs, 2 UARTs, 3 SPIs, 2 I²Cs, CEC), but lacks USB PHY and controller hardware - unlike the STM32F103 or STM32F072 families which integrate full-speed USB 2.0.

Can the internal 8 MHz RC oscillator be used as system clock without external crystal?

Yes, the factory-trimmed 8 MHz HSI RC oscillator can serve as the system clock source. It achieves ±1% accuracy over temperature and voltage, sufficient for UART communication at 9600 bps or SPI peripherals where precise timing is not critical.

How many external interrupt lines are available on STM32F100VDT6B?

The STM32F100VDT6B supports 16 external interrupt/event lines (EXTI0–EXTI15), each configurable to trigger on rising/falling/both edges. All 80 GPIOs are remappable to these 16 lines, enabling flexible button, sensor, or communication event handling across multiple ports.