STMicroelectronics STM32F100VCT6

Overview

STM32F100VCT6 from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 MCU 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 controllers requiring real-time sensor acquisition, analog output control, and multi-interface connectivity.

For engineers reviewing the STM32F100VCT6 datasheet, STM32F100VCT6 pinout, STM32F100VCT6 application, or STM32F100VCT6 equivalent, key selection criteria include Flash/SRAM sizing for firmware+data buffers, 100-pin LQFP package I/O count (80 GPIOs), 16-timer peripheral set for motor timing and PWM generation, and integrated RTC with VBAT support for battery-backed timekeeping.

Technical Context

The STM32F100VCT6 implements an Arm Cortex-M3 core with single-cycle multiply and hardware divide, executing at up to 24 MHz (1.25 DMIPS/MHz). Its clock system integrates a 4–24 MHz external crystal oscillator, factory-trimmed 8 MHz RC, 40 kHz RC, PLL for CPU clock scaling, and dedicated 32 kHz RTC oscillator with calibration.

Peripheral architecture includes a flexible static memory controller (FSMC) supporting SRAM/PSRAM/NOR, LCD parallel interface (8080/6800 modes), 11 communication interfaces (3 USARTs, 2 UARTs, 3 SPIs, 2 I²Cs, CEC), and DMA with 12 channels servicing timers, ADC, DAC, and serial peripherals.

Key Specifications

Pinout & Package

LQFP100 package: 100-pin low-profile quad flat package, 0.5 mm pitch, body size 14 × 14 mm, exposed pad optional, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F100VCT6, STM32F072RBT6 trades ARMv6-M simplicity and lower cost for reduced analog integration and no FSMC, while STM32F103VCT6 prioritizes raw processing headroom and larger SRAM at the expense of integrated DACs and temperature sensing - making the VCT6 uniquely balanced for mixed-signal HMI and sensor edge nodes.

Availability

STM32F100VCT6 is available at Aetrix Electronics and suitable for industrial HMIs, smart sensor nodes, motor control gateways, and portable medical instruments requiring stable component supply, long-term lifecycle assurance, and full production traceability.

Supply support for STM32F100VCT6 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 requiring robust analog integration, low-power operation, and full ARM Cortex-M3 compatibility - delivering optimized performance-per-dollar for entry-level 32-bit embedded systems.

FAQ

What is the maximum operating temperature range for STM32F100VCT6?

The STM32F100VCT6 is rated for industrial temperature range: –40°C to +85°C. This is confirmed in Section 5.3.1 of the DS5944 Rev 11 datasheet, with thermal characteristics validated per JEDEC JESD51 standards and package-specific θ_JA = 40°C/W for LQFP100 under standard PCB layout conditions.

Does STM32F100VCT6 support USB device functionality?

No, the STM32F100VCT6 does not include a USB peripheral. Unlike higher-tier STM32F103 devices, the F100 Value Line omits USB OTG and device controllers - its communication interfaces are limited to USART, UART, SPI, I²C, CAN (not present in F100), and CEC. USB connectivity requires external bridge IC or migration to F103/F303 series.

Can the internal 8 MHz RC oscillator be used as the system clock source?

Yes, the factory-trimmed 8 MHz internal RC oscillator (HSI) can serve as the system clock source, either directly or as PLL input. It achieves ±1% accuracy over temperature and voltage per datasheet Table 24, making it suitable for non-timing-critical applications like local control loops or debug bring-up before crystal stabilization.

How many external interrupt lines are supported on STM32F100VCT6?

The STM32F100VCT6 supports 16 external interrupt/event lines (EXTI0–EXTI15), each configurable to trigger on rising/falling edges or both. All 80 GPIOs are mappable to these 16 lines via the AFIO_EXTICR registers, enabling flexible wake-up and event handling from any I/O pin - documented in Section 2.2.8 and Table 4 of DS5944 Rev 11.