Product Overview

STM32F103C6T6A is a low-density performance line 32-bit microcontroller (MCU) launched by STMicroelectronics, based on the high-performance ARM® Cortex™-M3 core, with a maximum operating frequency of 72 MHz, 32 KB Flash program memory and 10 KB SRAM data memory. This product integrates a USB 2.0 full-speed interface, CAN 2.0B interface, 2x 12-bit ADCs, 6 communication interfaces and rich timers, with an operating voltage range of 2.0~3.6 V and support for Sleep/Stop/Standby low-power modes. It adopts LQFP48 (7×7 mm) package, widely suitable for industrial control, consumer electronics, medical equipment and other scenarios, and is a cost-effective choice that balances performance, cost and compatibility.

Key Features

• High-Performance Core with Excellent Computing Efficiency: Equipped with ARM® Cortex™-M3 32-bit RISC core, maximum frequency up to 72 MHz, achieving 1.25 DMIPS/MHz (Dhrystone 2.1) performance, supporting single-cycle multiplication and hardware division to meet medium-high speed data processing needs.
• Balanced Memory Configuration for Multiple Scenarios: Built-in 32 KB embedded Flash (for program storage) and 10 KB SRAM (for data caching). The Flash supports 10 kcycles erase/write endurance and 30-year data retention, balancing storage capacity and reliability.
• Rich Peripheral Interfaces with Strong Expandability: Integrates 1x USB 2.0 full-speed interface, 1x CAN 2.0B interface, 2x USART, 1x SPI, 1x I2C, combined with 2x 12-bit ADCs (up to 10 channels) and 6 timers (including 1x motor control PWM timer), meeting multi-device communication and analog signal acquisition needs.
• Multiple Low-Power Modes with Outstanding Energy Saving: Supports three low-power modes: Sleep (CPU only stopped), Stop (SRAM data retained), and Standby (minimum power consumption). The typical current in Standby mode is as low as 1.55 μA (VDD=2.4 V, TA=25℃), suitable for battery-powered devices.
• High-Reliability Design for Complex Environments: All I/O ports support 5 V tolerance (5 V-tolerant), ESD protection level up to HBM 2000 V, and operating temperature range covering -40~85℃ (industrial grade), ensuring stable operation in harsh environments.

Technical Specifications

Typical Applications

• Motor Drive and Control: STM32F103C6T6A is equipped with a 16-bit motor control PWM timer (TIM1), supporting dead-time generation and emergency stop functions. Combined with CAN interface for motor status communication, it can be used for small DC motor and stepper motor drive, such as home appliance motor control and industrial small transmission equipment.
• Handheld Medical Equipment: The product supports multiple low-power modes (Standby mode current only 1.55 μA) and is paired with 2x 12-bit high-precision ADCs (total error ±2 LSB), which can accurately collect physiological signals (such as heart rate and blood oxygen). Meanwhile, the LQFP48 small-size package is suitable for the compact layout of handheld devices, applicable to portable blood pressure monitors and oximeters.
• Industrial Automation Control: STM32F103C6T6A has a wide temperature operating range (-40~85℃) and CAN industrial bus interface, which can be connected to industrial control networks to realize sensor data acquisition (via ADC) and actuator control (via GPIO/PWM), suitable for PLC modules, small inverters, and industrial sensor nodes.
• Consumer Electronics Peripherals: Integrating USB 2.0 full-speed interface, it can realize high-speed data transmission with PCs. Combined with USART interface supporting IrDA/LIN protocol, it is suitable for PC peripherals (such as game controllers, wireless mouse receivers) and smart home control terminals (such as smart switches and temperature control panels).
• GPS Positioning Devices: The low-power feature of the product (typical current 11.3 μA in Stop mode) can extend the battery life of GPS devices. Meanwhile, 32 KB Flash can store positioning algorithms and data, and USART interface supports communication with GPS modules, suitable for portable GPS navigators and vehicle positioning terminals.

Why Choose STM32F103C6T6A ?

• Balanced Performance and Cost: The 72 MHz Cortex-M3 core meets medium-high speed processing needs, and 32 KB Flash + 10 KB SRAM is suitable for most embedded programs. Compared with similar MCUs, it has lower cost and significant cost-effectiveness.
• Strong Peripheral Compatibility: Supports multiple interfaces such as USB, CAN, and SPI, which can directly connect to sensors, actuators, and communication modules without additional expansion chips, simplifying hardware design and shortening development cycles.
• Low-Power Design for Excellent Battery Life: The minimum current in Standby mode is 1.55 μA, and the minimum current in Stop mode is 11.3 μA. Combined with VBAT backup power supply (supporting RTC and backup registers), it greatly extends the service time of battery-powered devices.
• High Family Compatibility: As a low-density model of the STM32F103 family, it is pin and software compatible with medium/high-density models (such as STM32F103C8T6, STM32F103RBT6), facilitating later upgrades of storage capacity or peripherals according to needs and protecting early development investment.
• Mature Ecosystem and Technical Support: Relying on STM32's huge development ecosystem, it has rich development tools (such as STM32CubeMX, Keil MDK), reference manuals and community resources. At the same time, ST provides comprehensive technical support to reduce development difficulty.

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