STMicroelectronics STM32F100VCT6B

Overview

STM32F100VCT6B from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller with 256 KB Flash, 24 KB SRAM, 24 MHz max CPU frequency, 12-bit ADC (16-channel), and dual 12-bit DACs - deployed in industrial HMI panels, motor control interfaces, and smart sensor nodes requiring deterministic real-time response and analog I/O integration.

For engineers reviewing the STM32F100VCT6B datasheet, STM32F100VCT6B pinout, STM32F100VCT6B application, or STM32F100VCT6B equivalent, key selection criteria include Flash/SRAM sizing for firmware+data buffers, LQFP100 package compatibility with existing PCB layouts, 24 MHz timing headroom for real-time control loops, and dual DAC support for analog actuator drive.

Technical Context

The device implements a single-cycle multiply/hardware divide Cortex-M3 core with nested vectored interrupt controller (NVIC) supporting up to 112 GPIOs mapped across 16 external interrupt vectors. Its clock tree integrates four oscillators (4–24 MHz HSE, 8 MHz HSI, 40 kHz LSI, 32.768 kHz LSE) feeding a programmable PLL for precise system clock derivation.

Peripheral architecture includes a flexible static memory controller (FSMC) with four chip selects for SRAM/PSRAM/NOR expansion, LCD parallel interface (8080/6800 modes), and 11 communication interfaces - including three USARTs with LIN/IrDA/ISO 7816 support, two I²C buses, three SPIs (12 Mbit/s), and CEC - enabling mixed-signal embedded gateway functions.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F072RBT6, the STM32F100VCT6B offers superior analog integration and memory expansion; versus STM32F103VCT6, it trades CPU speed and SRAM for dual DACs and lower power consumption - making it optimal for mixed-signal edge nodes where analog output and energy efficiency dominate.

Availability

STM32F100VCT6B is available at Aetrix Electronics and suitable for industrial HMI panels, brushless DC motor control interfaces, and smart environmental sensor nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32F100VCT6B 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 sensors, and automotive-grade silicon.

The STM32F100 Value Line targets cost-sensitive industrial and consumer applications demanding robust real-time performance, integrated analog peripherals, and long-term supply stability - balancing feature richness with bill-of-materials optimization.

FAQ

What is the maximum operating frequency of the STM32F100VCT6B?

The STM32F100VCT6B operates at a maximum CPU frequency of 24 MHz, achieved via its internal PLL driven by either the 4–24 MHz HSE crystal oscillator or the 8 MHz HSI RC oscillator. This frequency is fixed by the value-line architecture to optimize power efficiency and cost, and it supports deterministic real-time execution with 1.25 DMIPS/MHz performance.

Does the STM32F100VCT6B support external memory expansion?

Yes - it integrates a Flexible Static Memory Controller (FSMC) with four independent chip select lines, supporting asynchronous and synchronous SRAM, PSRAM, and NOR flash devices. The controller handles address/data multiplexing, wait-state insertion, and timing configuration via dedicated registers, enabling direct connection of external memory without glue logic.

Can the STM32F100VCT6B drive an LCD panel directly?

Yes - it features a dedicated LCD parallel interface supporting both 8080 and 6800 bus protocols, with up to 8-bit data bus width and integrated timing control. This allows direct connection to segment-based or character LCD modules without external controllers, reducing system component count and PCB area in HMI applications.

Is the STM32F100VCT6B pin-compatible with other STM32F100 variants?

Yes - all STM32F100Vx devices in LQFP100 package (e.g., STM32F100VBT6, STM32F100VET6) share identical pinouts and mechanical footprint. Differences lie in Flash size (128 KB to 512 KB), SRAM capacity (16 KB to 32 KB), and peripheral enablement - allowing scalable design reuse through simple firmware and BOM updates.