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STM32F103RCT6

Cortex-M3 MCU, 72MHz, 256KB Flash, 48KB SRAM, USB, CAN, 64-LQFP

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Manufacturer Part：

STM32F103RCT6

Package：

64-LQFP (10 x 10 x 1.4mm)

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Description

Product Overview

The STM32F103RCT6 from STMicroelectronics is an ARM Cortex-M3 microcontroller running at 72MHz with 256KB Flash, 48KB SRAM, 12-bit ADC, multiple timers, and rich communication peripherals (SPI, I2C, USART, USB, CAN) in a 64-pin LQFP package.

Key Specifications

Manufacturer STMicroelectronics
Core ARM Cortex-M3
Max Clock Speed 72MHz
Flash Memory 256KB
SRAM 48KB
ADC 3x 12-bit (up to 16 channels)
DAC 2x 12-bit
Timers 8 (advanced, general, basic, SysTick)
Communication 3x SPI, 2x I2S, 2x I2C, 5x USART, USB 2.0 FS, CAN 2.0B, SDIO
Package 64-LQFP (10 x 10mm)
Operating Voltage 2.0V to 3.6V
Operating Temperature -40C to +85C

Features

  • 72MHz Cortex-M3 with 1.25 DMIPS/MHz
  • 256KB Flash with 48KB SRAM
  • Three 12-bit ADCs with up to 16 channels total
  • Two 12-bit DACs
  • USB 2.0 Full-Speed device interface
  • CAN 2.0B active interface
  • SDIO interface for SD/MMC cards
  • Five USARTs and three SPI ports
  • 80 fast I/Os on 64-pin package
  • Nested vectored interrupt controller (NVIC)

Applications

  • Industrial control and motor drives
  • Consumer electronics and appliances
  • Medical devices
  • USB peripherals
  • Automotive body electronics

The STMicroelectronics STM32F103RCT6 is a mainstream ARM Cortex-M3 microcontroller from the popular STM32F1 series. Running at 72MHz, it delivers 90 DMIPS performance with 256KB Flash and 48KB SRAM. The rich peripheral set includes three 12-bit ADCs, two 12-bit DACs, USB 2.0 Full-Speed device, CAN 2.0B, five USARTs, three SPIs, two I2Cs, I2S, SDIO, and eight timers. This makes it one of the most versatile mid-range MCUs for industrial, consumer, and automotive applications. The 64-pin LQFP package provides 80 GPIO pins with 5V-tolerant inputs. The device is widely used in the maker community and has extensive ecosystem support including STM32Cube firmware libraries and HAL drivers.

The STM32F103RCT6 operates as a complete ARM Cortex-M3 microcontroller system: 1) Cortex-M3 Core: The 72MHz CPU executes Thumb-2 instructions with a 3-stage pipeline, achieving 1.25 DMIPS/MHz. The NVIC supports up to 60 maskable interrupts with 16 priority levels and deterministic interrupt handling. 2) Memory: 256KB Flash stores program code with prefetch buffer. 48KB SRAM handles runtime data. The FlexBus supports external memory expansion. 3) Peripherals: Three ADCs can operate in dual/triple interleaved mode for 6Msps aggregate sampling. USB FS device supports 8 endpoints. CAN 2.0B supports standard and extended frames. SDIO provides SD/MMC card interface. 4) Clock System: Internal 8MHz RC (factory-trimmed) and 40kHz RC oscillators, external 4-16MHz crystal, and PLL generating up to 72MHz system clock.

Pin Name Type Function
1-64 Mixed I/O I/O 80 GPIO pins with configurable alternate functions including ADC, DAC, SPI, I2C, USART, USB, CAN, SDIO, timer I/O (5V tolerant inputs)
  • Industrial motor control with CAN communication network
  • USB HID device with ADC-based sensor interface
  • Consumer appliance controller with SD card data logging
Manufacturer Part Number Package Notes
ST STM32F103RBT6 64-LQFP 128KB Flash, lower cost
ST STM32F103RDT6 64-LQFP 384KB Flash, higher density
ST STM32F401RCT6 64-LQFP Cortex-M4, 84MHz, newer
GigaDevice GD32F103RCT6 64-LQFP Pin-compatible, 108MHz
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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