STMicroelectronics STM32F103C8T6 32-bit Arm Cortex-M3 Microcontroller, 72MHz, 64KB Flash, LQFP-48
STM32F103C8T6 is a 72 MHz Arm Cortex-M3 microcontroller with 64 KB Flash, 20 KB SRAM, USB, CAN, ADCs, timers, and serial interfaces in a 48-pin LQFP package.
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
STM32F103C8T6
Series
Base Model
Detailed Description
Package
LFQFP
Key Features
32-bit Arm Cortex-M3 MCU, 72 MHz, 64 KB Flash, 20 KB SRAM, LQFP-48, USB, CAN, ADC, timers, USART, SPI and I²C
Lifecycle Status
Production
RoHS State
Compliant
Datasheet
STM32F103C8T6 Datasheet
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Ordering Code Difference
STM32F103C8T6 vs STM32F103C8T6TR: What Is the Difference?
STM32F103C8T6 and STM32F103C8T6TR are functionally equivalent STMicroelectronics STM32F103 32-bit Arm Cortex-M3 microcontrollers with 72MHz performance, 64KB Flash, 20KB SRAM, USB, CAN, ADCs, timers and serial communication interfaces in a 48-pin LQFP package. The main difference is the ordering and packaging format: STM32F103C8T6 is commonly used as the standard part number, while STM32F103C8T6TR specifies tape-and-reel packaging for SMT production.
| Part Number | Main Difference | Replacement Note | Request Quote |
|---|---|---|---|
This PartSTM32F103C8T6 | Standard ordering code for the STM32F103C8 MCU, commonly supplied in tray, tube, or distributor-specific packaging depending on stock source. | Use as the base version when the design requires STM32F103C8 specifications in LQFP-48 package. STM32F103C8T6TR can usually replace it if tape-and-reel packaging is acceptable. | |
STM32F103C8T6TR | Tape-and-reel version of STM32F103C8T6, intended for automated SMT assembly. Electrical specifications, pinout, package and MCU functions are the same as STM32F103C8T6. | Can usually replace STM32F103C8T6 when the same MCU specification is required and the only difference is packaging format. Confirm reel, cut-tape or tray supply before production purchase. |
Technical Specifications
STMicroelectronics STM32F103C8T6 32-bit Arm Cortex-M3 Microcontroller, 72MHz, 64KB Flash, LQFP-48 technical specifications.
General
Country of Origin
Malaysia
Export Control Classification Number ECCN Code
3A991.A.2
Harmonized Tariff Schedule HTS Code
8542.31.00.25
Introduction Date
2007-06-07
Lifecycle Status
Production
Package
LFQFP
Mounting Type
Surface Mount
Number of Pins
48
ADC Channels Resolution
10-Ch 12-Bit
Address Bus Width
32 b
Alternate Parts Comparison
STM32F103C8T6 vs STM32F103C6T6ATR vs STM32F103R8T6TR vs STM32F103RCT6TR: What is the Difference?
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Speed | 72MHz | 72MHz | 72MHz | 72MHz |
| Program Memory Type | Flash | Flash | Flash | Flash |
| Program Memory Size | 64KB (64K x 8) | 32KB (32K x 8) | 64KB (64K x 8) | 256KB (256K x 8) |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Data Converters | A/D 10x12b | A/D 10x12b | A/D 16x12b | A/D 16x12b; D/A 2x12b |
| Connectivity | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| RAM Size | 20K x 8 | 10K x 8 | 20K x 8 | 48K x 8 |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Number of I/O | 37 | 37 | 51 | 51 |
| Package / Case | 48-LQFP | 48-LQFP | 64-LQFP | 64-LQFP |
| Peripherals | POR | DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT | DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT | DMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| Supply Voltage | 2V ~ 3.6V | 2V ~ 3.6V | 2V ~ 3.6V | 2V ~ 3.6V |
| Action |
STMicroelectronics STM32F103C8T6 32-bit Arm Cortex-M3 Microcontroller, 72MHz, 64KB Flash, LQFP-48 Overview
Key Features
Target Applications
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Frequently Asked Questions
Common technical questions and support information for this electronic component.
STM32F103C8T6 is still widely listed by electronic component distributors and sourcing channels, but actual availability can change depending on market demand, production allocation, and regional inventory. For purchasing, it is best to confirm current stock, lead time, date code, packaging type, and traceability before placing an order. If STM32F103C8T6 is temporarily unavailable, related STM32F103 series parts or packaging variants may be considered after checking technical compatibility.
STM32F103C8T6 is supplied in an LQFP-48 package. The device is a surface-mount 48-pin microcontroller commonly used in embedded control, industrial electronics, development boards, and general-purpose MCU designs. When sourcing this part, always confirm the package, marking, packaging format, and manufacturer label to make sure it matches your PCB footprint and assembly requirements.
STM32F103C8T6 and STM32F103C8T6TR refer to the same core microcontroller specification in most design contexts. The main difference is the ordering and packaging format. The “TR” suffix usually indicates tape-and-reel packaging, which is suitable for automated SMT production. STM32F103C8T6 may be listed as a base orderable part or supplied in tray, cut tape, or other distributor packaging depending on the supplier. For production orders, confirm the exact packaging type with the supplier before purchase.
No. STM32F103C8T6 is the microcontroller IC itself, while “Blue Pill” usually refers to a low-cost development board built around an STM32F103C8T6 or similar STM32F103-series MCU. A Blue Pill board includes the MCU plus additional components such as crystal oscillators, voltage regulation, USB interface circuitry, headers, and reset/boot pins. If you are designing or manufacturing your own PCB, you need the STM32F103C8T6 IC, not the complete Blue Pill development board.
STM32F103C8T6 and STM32F103CBT6 are from the same STM32F103 family and may share the same package style in some configurations, but they are not always direct replacements. A key difference is memory size: STM32F103C8T6 is commonly associated with 64 KB Flash, while STM32F103CBT6 is commonly associated with 128 KB Flash. Before replacing STM32F103CBT6 with STM32F103C8T6, check firmware size, pinout, package, peripheral usage, boot configuration, electrical ratings, and qualification requirements.
STM32F103C8T6 is a 32-bit ARM Cortex-M3 microcontroller from STMicroelectronics’ STM32F1 series. It operates at up to 72 MHz and is commonly listed with 64 KB Flash memory, 20 KB SRAM, and an LQFP-48 package. It supports a wide range of embedded peripherals, making it suitable for control systems, communication interfaces, industrial modules, and compact MCU-based designs.
STM32F103C8T6 is used in embedded control, industrial automation, motor control, sensor interfaces, communication modules, IoT devices, test equipment, educational development boards, and general-purpose microcontroller projects. It is popular because it combines a 32-bit Cortex-M3 core, useful peripheral set, compact package, and broad ecosystem support.
Yes. STM32F103C8T6 belongs to the STM32F103 medium-density performance line, which includes USB functionality depending on the exact device configuration and circuit design. For USB-based applications, designers should review the official datasheet, reference schematics, clock requirements, and firmware library support before finalizing the PCB.
Before buying STM32F103C8T6, confirm the manufacturer, full part number, package, packaging type, quantity, date code, RoHS status, lead time, and traceability. For production use, also verify whether you need STM32F103C8T6, STM32F103C8T6TR, or another STM32F103 variant. If the part is used as a replacement, compare memory size, pinout, package, firmware requirements, and electrical specifications carefully.
STM32F103C8T6 can be used in many embedded designs, especially where an established STM32F1 platform is preferred. However, for new long-life products, engineers should also consider supply availability, lifecycle planning, firmware ecosystem, cost targets, and whether a newer STM32 family may offer better long-term support or performance. For replacement or maintenance projects, STM32F103C8T6 remains a common choice when the original design already uses the STM32F1 platform.