STMicroelectronics STM32F100C6T7B

Overview

STM32F100C6T7B from STMicroelectronics is a 32-bit ARM Cortex-M3 microcontroller in LQFP48 package, featuring 32 KB Flash, 4 KB SRAM, 24 MHz max CPU frequency, 1×12-bit ADC (16-channel), 2×12-bit DACs, and 8 communication interfaces including USART, SPI, I²C, and CEC - deployed in industrial sensor nodes requiring deterministic real-time control and analog signal conditioning.

For engineers reviewing the STM32F100C6T7B datasheet, STM32F100C6T7B pinout, STM32F100C6T7B application, or STM32F100C6T7B equivalent, key selection criteria include Flash/SRAM size, 5 V-tolerant I/O count (37 pins), RTC with VBAT support, SWD debug interface, and low-power Stop/Standby modes for battery-backed operation.

Technical Context

The device implements an ARM Cortex-M3 core with single-cycle multiply and hardware divide, supporting Thumb-2 instruction set and NVIC with 64 interrupt vectors. Its clock system integrates dual oscillators (8 MHz HSI ±1%, 32 kHz LSE) plus PLL for flexible CPU and peripheral clock derivation up to 24 MHz.

DMA supports 7 channels servicing timers, ADC, DAC, USART, SPI, and I²C concurrently; memory-mapped peripherals include two 16-bit advanced-control timers with dead-time generation and emergency stop - enabling precise motor control and power conversion timing.

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F100C6T7B, STM32F030F4P6 trades analog capability and RTC robustness for lower BOM cost, while STM32G030F6P6 increases processing headroom but removes on-die temperature sensing - making the F100C6T7B optimal for mixed-signal edge nodes needing calibrated analog I/O and time-stamped data.

Availability

STM32F100C6T7B is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat controllers, PLC I/O modules, and medical vital sign loggers requiring stable component supply across extended production lifecycles.

Supply support for STM32F100C6T7B 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, and automotive semiconductors.

The STM32F100 value line targets cost-sensitive, low-power embedded applications requiring rich analog integration and real-time performance - optimized for industrial automation, consumer appliances, and portable instrumentation.

FAQ

What is the maximum operating temperature range for STM32F100C6T7B?

The STM32F100C6T7B is rated for industrial temperature range: –40 °C to +85 °C. This specification is validated per ST's qualification standards and applies to all operating modes including Run, Stop, and Standby. Thermal derating is not required within this range under specified voltage and load conditions.

Does STM32F100C6T7B support USB connectivity?

No, the STM32F100C6T7B does not integrate a USB peripheral. It lacks both USB PHY and USB controller logic. For USB-enabled designs in the same family, engineers should consider STM32F103xx or STM32F07x series parts - the F100C6T7B relies on USART, SPI, or I²C for host/device communication.

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

Yes, the factory-trimmed 8 MHz HSI oscillator can serve as the system clock source, with ±1% accuracy at 25 °C and full temperature range stability of ±2.5%. It supports immediate startup without external components and is commonly used for boot sequences or as fallback clock during crystal failure.

How many external interrupt lines are available on STM32F100C6T7B?

The device provides 16 external interrupt lines (EXTI0–EXTI15), each mapped to one GPIO pin per port (e.g., PA0–PA15, PB0–PB15). All 37 GPIOs can trigger interrupts via these lines, with configurable rising/falling/both-edge sensitivity and priority levels managed by the NVIC.