STMicroelectronics STM32F100VET6B

Overview

STM32F100VET6B from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller featuring 512 KB Flash, 32 KB SRAM, 24 MHz max CPU frequency, dual 12-bit DACs, and up to 112 I/Os in LQFP100 package - deployed in industrial motor control interfaces requiring real-time PWM generation and analog feedback.

For engineers reviewing the STM32F100VET6B datasheet, STM32F100VET6B pinout, STM32F100VET6B application, or STM32F100VET6B equivalent, key selection criteria include Flash/SRAM capacity, 16-timer count with advanced-control capability, 12-bit ADC/DAC performance, and 5 V-tolerant I/O support for legacy system integration.

Technical Context

The device implements an Arm Cortex-M3 core with single-cycle multiply/hardware divide, supporting deterministic real-time execution at 24 MHz (1.25 DMIPS/MHz). Its clock tree integrates dual oscillators (4–24 MHz HSE + 32.768 kHz LSE), PLL for CPU clock scaling, and factory-trimmed 8 MHz HSI for rapid startup.

Peripheral architecture includes a flexible static memory controller (FSMC) with four chip selects for NOR/PSRAM expansion, LCD parallel interface (8080/6800 modes), and 11 communication interfaces - including three USARTs with IrDA/LIN, two I²C (SMBus/PMBus), and CEC - enabling multi-protocol embedded gateway functions.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103VET6, the STM32F100VET6B trades USB/CAN for FSMC and LCD support - ideal for display-integrated industrial controllers; versus STM32F072VBT6, it delivers higher determinism, dual DACs, and memory expansion essential for real-time closed-loop systems.

Availability

STM32F100VET6B is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, HMI panels, and PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for STM32F100VET6B 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 analog devices for industrial, automotive, and consumer markets.

The STM32F100 Value Line targets cost-optimized, high-reliability embedded applications - emphasizing rich analog integration (ADC/DAC), real-time peripherals (advanced timers), and memory flexibility (FSMC) for industrial edge devices.

FAQ

What is the maximum operating temperature range for STM32F100VET6B?

The STM32F100VET6B is rated for industrial temperature operation from –40°C to +85°C. This range is validated per ST's qualification standards (AEC-Q100 not applicable), and thermal performance includes derating curves for ambient temperatures above 70°C in high-power peripheral configurations.

Does STM32F100VET6B support hardware floating-point arithmetic?

No, the STM32F100VET6B uses an Arm Cortex-M3 core without integrated FPU. Floating-point operations must be performed in software using CMSIS-DSP libraries or compiler-generated routines. Fixed-point math is recommended for time-critical control loops to maintain deterministic latency.

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

Yes - the factory-trimmed 8 MHz HSI oscillator serves as a fully functional system clock source with ±1% accuracy over temperature and voltage. It enables immediate MCU operation at power-on, eliminating the need for external crystals during prototyping or cost-sensitive designs where timing precision is secondary to startup speed.

How many independent PWM channels can be generated simultaneously on STM32F100VET6B?

The device supports up to 24 independent PWM outputs: TIM1 provides 6 complementary channels; TIM2–TIM4 each offer 4 channels; TIM5–TIM8 provide 2 channels each. All channels are individually configurable for duty cycle, period, and polarity - enabling simultaneous control of multiple actuators or lighting zones.