STMicroelectronics STM32F100VCT6BTR

Overview

STM32F100VCT6BTR from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller with 256 KB Flash, 24 KB SRAM, 2×12-bit DACs, 1×12-bit ADC (16-channel), and up to 112 I/Os in LQFP100 package. It operates at up to 24 MHz, supports flexible static memory controller (FSMC), LCD parallel interface (8080/6800 modes), and integrates RTC with VBAT backup for industrial HMI and sensor node applications.

For engineers reviewing the STM32F100VCT6BTR datasheet, STM32F100VCT6BTR pinout, STM32F100VCT6BTR application, or STM32F100VCT6BTR equivalent, key selection criteria include Flash/SRAM size, dual DAC support, FSMC capability for external display or memory expansion, and 100-pin LQFP thermal/mechanical fit in space-constrained embedded designs.

Technical Context

The device implements an Arm Cortex-M3 core with single-cycle multiplication and hardware division, delivering 1.25 DMIPS/MHz performance. Its clock system includes dual oscillators (4–24 MHz HSE and 32.768 kHz LSE), internal 8 MHz RC, and PLL for CPU clock generation - enabling precise timing control for real-time sensor fusion and motor control loops.

Peripheral architecture features a 12-channel DMA controller servicing timers, ADC, SPI, I²C, USART, and DACs; nested vectored interrupt controller (NVIC) with 68 maskable interrupts; and advanced timer subsystem including one 16-bit advanced-control timer with 6-channel PWM, dead-time generation, and emergency stop - suitable for three-phase inverter gate drive.

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 STM32F072VBT6, STM32F100VCT6BTR delivers superior analog integration (dual DAC, temperature sensor) and memory interface flexibility; versus STM32F103VCT6, it trades peak CPU speed for guaranteed RTC operation under battery backup - making it optimal for time-critical, low-power industrial logging.

Availability

STM32F100VCT6BTR is available at Aetrix Electronics and suitable for industrial HMI, smart energy metering, motor control nodes, and IoT sensor gateways requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F100VCT6BTR 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 components since 1987.

The STM32F100 Value Line targets cost-sensitive, high-volume industrial and consumer applications requiring robust analog peripherals, low-power operation, and pin-compatible scalability within the STM32 ecosystem.

FAQ

What is the maximum operating frequency and associated power consumption in Run mode?

The STM32F100VCT6BTR runs at up to 24 MHz. At 24 MHz with all peripherals active and code executing from Flash, typical current consumption is 12.3 mA (VDD = 3.3 V, TA = 25°C), per Section 5.3.5 of DS5944 Rev 11. This includes core, memory, and analog circuitry - verified under standard load conditions with 100 nF/4.7 µF decoupling.

Does this MCU support external memory expansion, and what interfaces are available?

Yes - the Flexible Static Memory Controller (FSMC) provides four chip select outputs supporting SRAM, PSRAM, and NOR flash in asynchronous or synchronous modes. It implements 8-/16-bit data buses with programmable timing parameters, enabling direct connection to graphic LCD controllers (e.g., ILI9341 in 8080 mode) or external program memory without FPGA or CPLD glue logic.

How many ADC channels are available, and what is their effective resolution in practical use?

The device includes one 12-bit ADC with up to 16 external input channels. Under typical conditions (VDDA = 3.3 V, fADC ≤ 12 MHz), integral nonlinearity is ±1.5 LSB and effective resolution is ≥11.3 bits (ENOB), as specified in Table 54 of DS5944 Rev 11. Accuracy is maintained across –40°C to +85°C with internal calibration enabled.

Is the LQFP100 package lead-free and RoHS compliant?

Yes - the STM32F100VCT6BTR uses a RoHS-compliant, lead-free LQFP100 package (14 × 14 mm, 0.5 mm pitch) with matte tin plating. Package mechanical data is defined in Table 58 of DS5944 Rev 11, and JEDEC registration number is MO-137AB. The "BTR" suffix confirms tape-and-reel packaging for automated SMT assembly.