
Product Overview
The STM32F103C8T6 is a mainstream-performance 32-bit microcontroller from STMicroelectronics' STM32F1 series. Based on the Arm Cortex-M3 32-bit RISC processor core, the device operates at up to 72 MHz and combines 64 KB of Flash memory, 20 KB of SRAM, advanced timers, 12-bit ADCs, USB, CAN, and multiple serial communication interfaces.
The STM32F103C8T6 operates from a 2.0 V to 3.6 V supply and is supplied in an LQFP-48 package measuring 7 mm × 7 mm × 1.4 mm. It supports industrial operation from -40°C to +85°C.
With its combination of processing performance, low power modes, analog peripherals, timers, USB, CAN, and serial interfaces, the STM32F103C8T6 is suitable for industrial control, motor control, embedded systems, consumer electronics, USB devices, automation equipment, and other general-purpose applications.
Key Features
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Arm Cortex-M3 32-bit RISC processor core
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CPU frequency up to 72 MHz
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Up to 1.25 DMIPS/MHz performance at 0 wait-state memory access
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Single-cycle multiplication and hardware division
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64 KB embedded Flash memory
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20 KB SRAM
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Up to 37 I/O pins in the LQFP-48 package
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Up to 16 external interrupt lines
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2 × 12-bit ADCs
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ADC conversion time as low as 1 µs
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Internal temperature sensor
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2 × SPI interfaces
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2 × I²C interfaces
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3 × USART interfaces
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1 × CAN 2.0B Active interface
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USB 2.0 Full-Speed interface
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16-bit general-purpose timers
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16-bit motor-control PWM timer
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Independent and window watchdog timers
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7-channel DMA controller
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SWD and JTAG debugging interfaces
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CRC calculation unit
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96-bit unique device ID
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Low-power Sleep, Stop, and Standby modes
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Operating temperature range from -40°C to +85°C
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LQFP-48 package
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STM32F103C8T6 |
| Product Family | STM32F1 |
| Series | STM32F103 |
| Category | Microcontrollers |
| Subcategory | ARM Cortex-M MCU |
| Core Processor | Arm Cortex-M3 |
| Core Size | 32-Bit |
| Maximum CPU Speed | 72 MHz |
| Program Memory | 64 KB Flash |
| SRAM | 20 KB |
| GPIO | Up to 37 I/O |
| ADC | 2 × 12-Bit ADC |
| ADC Channels | Up to 16 |
| SPI | 2 |
| I²C | 2 |
| USART | 3 |
| CAN | 1 × CAN 2.0B Active |
| USB | USB 2.0 Full-Speed |
| DMA | 7-Channel DMA |
| Timers | Multiple 16-Bit Timers |
| Motor Control PWM | Supported |
| Debug Interface | SWD / JTAG |
| Supply Voltage | 2.0 V – 3.6 V |
| Operating Temperature | -40°C to +85°C |
| Package | LQFP-48 |
| Package Size | 7 mm × 7 mm × 1.4 mm |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Grade | Industrial |
| RoHS | ECOPACK2 |
| Lifecycle Status | Active |
STMicroelectronics lists the STM32F103C8T6 as an active industrial-grade device with a 64 KB Flash memory, 72 MHz Cortex-M3 core, and LQFP-48 7 × 7 × 1.4 mm package.
Communication & Connectivity
The STM32F103C8T6 integrates several commonly used communication interfaces for embedded and industrial applications.
Supported interfaces include:
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USB 2.0 Full-Speed
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CAN 2.0B Active
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2 × SPI
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2 × I²C
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3 × USART
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SWD debugging
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JTAG debugging
The combination of USB, CAN, SPI, I²C, and USART interfaces allows the STM32F103C8T6 to be used in embedded controllers, industrial equipment, USB peripherals, sensor systems, communication devices, and automation applications.
Applications
The STM32F103C8T6 is suitable for a wide range of applications, including:
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Industrial Automation
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Embedded Control Systems
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Motor Control
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Robotics
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PLC Systems
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USB Devices
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CAN-Based Control Systems
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Sensor and Data Acquisition Systems
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Consumer Electronics
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Medical Electronics
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Handheld Equipment
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GPS Platforms
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Printers and Scanners
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Alarm Systems
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HVAC Systems
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Smart Home Devices
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Gaming and PC Peripherals
STMicroelectronics specifically identifies STM32F103xx devices for applications including motor drives, application control, medical and handheld equipment, GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms, and HVAC systems.
Benefits
The STM32F103C8T6 provides a practical balance of processing performance, memory, connectivity, and peripheral integration in a compact LQFP-48 package.
Its 72 MHz Arm Cortex-M3 core provides sufficient processing performance for many real-time embedded applications, while the 64 KB Flash and 20 KB SRAM provide memory resources for firmware and application data.
Integrated USB, CAN, SPI, I²C, and USART interfaces provide flexible connectivity without requiring separate communication controllers. The device also includes 12-bit ADCs, motor-control PWM, DMA, watchdog timers, and low-power operating modes, making it suitable for cost-sensitive embedded designs.
Packaging & Ordering Information
| Parameter | Details |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | STM32F103C8T6 |
| Package | LQFP-48 |
| Package Size | 7 mm × 7 mm × 1.4 mm |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Grade | Industrial |
| RoHS Compliance | ECOPACK2 |
| Supply Voltage | 2.0 V – 3.6 V |
| Operating Temperature | -40°C to +85°C |
| Lifecycle | Active |
The STM32F103C8T6 is supplied by STMicroelectronics in an LQFP-48 package with tray packaging and industrial temperature rating.
Datasheet
For complete electrical characteristics, pin configuration, functional descriptions, absolute maximum ratings, memory organization, peripheral details, and application information, please refer to the official STMicroelectronics documentation.
Datasheet: Official STM32F103C8T6 Datasheet – STMicroelectronics
Frequently Asked Questions
What is STM32F103C8T6?
STM32F103C8T6 is a 32-bit microcontroller manufactured by STMicroelectronics and belonging to the STM32F1 series. It uses an Arm Cortex-M3 processor core operating at up to 72 MHz.
What processor core does STM32F103C8T6 use?
The STM32F103C8T6 uses an Arm Cortex-M3 32-bit RISC processor core with a maximum frequency of 72 MHz.
How much Flash memory does STM32F103C8T6 have?
The STM32F103C8T6 provides 64 KB of embedded Flash memory.
How much RAM does STM32F103C8T6 have?
The device provides 20 KB of SRAM.
What package is used for STM32F103C8T6?
The STM32F103C8T6 is supplied in an LQFP-48 package measuring 7 mm × 7 mm × 1.4 mm.
Does STM32F103C8T6 support USB?
Yes. The STM32F103C8T6 supports a USB 2.0 Full-Speed interface.
Does STM32F103C8T6 support CAN?
Yes. The device includes one CAN 2.0B Active interface, making it suitable for CAN-based embedded and industrial control systems.
How many ADCs does STM32F103C8T6 have?
The STM32F103C8T6 integrates two 12-bit ADCs with up to 16 channels.
What applications is STM32F103C8T6 suitable for?
It can be used in industrial automation, motor control, robotics, USB devices, CAN-based systems, sensor equipment, consumer electronics, PLCs, printers, scanners, alarm systems, HVAC equipment, and other embedded applications.
Can I request bulk pricing for STM32F103C8T6?
Yes. Contact our sales team with your required quantity and destination to request current pricing, stock availability, MOQ, lead time, and shipping options.
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