STMicroelectronics STM32F100VDT6BTR

Overview

STM32F100VDT6BTR from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 MCU in LQFP100 package, featuring 384 KB Flash, 32 KB SRAM, 24 MHz max CPU frequency, dual 12-bit DACs, and 16-channel 12-bit ADC with temperature sensor-designed for cost-sensitive industrial control and motor drive applications requiring integrated analog I/O and real-time timing.

For engineers reviewing the STM32F100VDT6BTR datasheet, STM32F100VDT6BTR pinout, STM32F100VDT6BTR application, or STM32F100VDT6BTR equivalent, key selection considerations include Flash/SRAM capacity matching, LQFP100 pin compatibility, 24 MHz clock operation, DAC/ADC channel count, and support for FSMC-based external memory expansion.

Technical Context

The device implements an Arm Cortex-M3 core with single-cycle multiply and hardware divide, executing at up to 24 MHz (1.25 DMIPS/MHz), and integrates a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR with four chip selects and parallel LCD interface (8080/6800 modes). Its clock system includes dual oscillators (4–24 MHz HSE and 32 kHz LSE), PLL for CPU clock generation, and factory-trimmed 8 MHz HSI RC source.

Power management supports Sleep, Stop, and Standby modes with VBAT backup for RTC and registers; debug is provided via Serial Wire Debug (SWD) and JTAG. DMA handles 12 channels across timers, ADC, SPI, I²C, USART, and DAC peripherals-enabling efficient peripheral-to-memory data movement without CPU intervention.

Key Specifications

Pinout & Package

LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, rated for 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 STM32F103VCT6, the STM32F100VDT6BTR trades CPU speed for enhanced analog integration and external memory support; versus STM32F072VBT6, it delivers significantly more Flash, dual DACs, and FSMC-making it optimal for display-rich, memory-extensible industrial edge devices.

Availability

STM32F100VDT6BTR is available at Aetrix Electronics and suitable for industrial motor control, smart metering, HMI panels, and factory I/O modules requiring stable component supply, long-term lifecycle assurance, and industrial-grade temperature tolerance.

Supply support for STM32F100VDT6BTR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong industrial and embedded systems focus.

This part belongs to the STM32F100 Value Line-a cost-optimized Cortex-M3 series targeting resource-constrained industrial applications where Flash density, analog integration, and external memory expansion outweigh raw CPU speed.

FAQ

What is the maximum operating frequency of the STM32F100VDT6BTR?

The STM32F100VDT6BTR operates at a maximum CPU frequency of 24 MHz, achieved via its internal PLL driven by the 4–24 MHz HSE crystal or 8 MHz HSI RC oscillator. This frequency is fixed by the value-line architecture and cannot be overclocked; all peripherals-including timers, ADC, and communication interfaces-are clocked synchronously from this source.

Does the STM32F100VDT6BTR support external memory expansion?

Yes, it integrates a Flexible Static Memory Controller (FSMC) with four independent chip selects, supporting asynchronous and synchronous SRAM, PSRAM, and NOR flash memory in non-multiplexed or multiplexed configurations. The LQFP100 package exposes all required address/data/control signals (e.g., NE1–NE4, A0–A25, D0–D15, NOE, NWE) for direct connection without glue logic.

How many analog-to-digital converter (ADC) channels does it have, and what is their resolution?

The device includes one 12-bit ADC with up to 16 external input channels and a built-in temperature sensor. Conversion time is 1.2 µs per sample, with input voltage range of 0 to 3.6 V. It supports regular and injected conversion modes, DMA-triggered sequences, and analog watchdog functionality for threshold monitoring.

Is the STM32F100VDT6BTR pin-compatible with other STM32F100 variants?

It is pin-compatible within the LQFP100 package family (e.g., STM32F100RCT6, STM32F100VCT6), sharing identical mechanical footprint and signal mapping. However, feature differences-such as Flash size (256 KB vs. 384 KB), SRAM (24 KB vs. 32 KB), and peripheral enablement-require firmware validation; memory-mapped registers remain consistent across the series.