STM32F103R8T7 - 72MHz 64KB Cortex-M3 MCU | STMicroelectronics
料号： STM32F103R8T7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.8833 | $5.88 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32F103R8T7 概述
A microcontroller such as the STM32F103R8T7 is a programmable semiconductor that combines a processor core, memory, and peripherals on one integrated circuit. The Cortex-M3 core uses a reduced-instruction architecture optimized for embedded systems, while the STM32F103 family adds timers, serial interfaces, analog converters, and communication controllers. Within the hierarchy of MCU, embedded processor, digital controller, and semiconductor, this device provides a practical platform for controlling sensors, actuators, communications, and real-time signal processing.
Key features include a maximum 72 MHz operating frequency, 64 KB Flash, two ADCs, USB and CAN connectivity, and seven 16-bit timers. The 64-LQFP package provides external access to the device's GPIO and communication signals, while the integrated analog and timing resources reduce the need for separate components. The verified product listing identifies the device as a 32-bit, 72 MHz, 64 KB Flash MCU in a 64-LQFP package.
The STM32F103R8T7 architecture supports both control-oriented firmware and communication-rich embedded systems. Its seven 16-bit timers support timing, input capture, output compare, PWM, and motor-control workflows. USB and CAN interfaces enable connection to host systems, peripherals, industrial networks, or automotive-style communication equipment. Two ADCs provide analog measurement channels, while the Arm Cortex-M3 core executes control logic efficiently.
Typical applications include industrial controllers, USB peripherals, CAN-connected nodes, motor-control boards, instrument interfaces, and compact embedded products. The 72 MHz clock provides processing headroom for protocol handling and real-time tasks, while the analog inputs can be used for sensor conditioning and monitoring. Designers should confirm memory requirements, pin-level connectivity, and peripheral availability against the complete manufacturer documentation before finalizing a system.
For PCB design, place the MCU close to its decoupling network and provide a stable clock, reset, and debug implementation according to the manufacturer reference material. Check every exposed and power pin against the package drawing before routing. The device is a digital integrated circuit rather than a power semiconductor, so SOA data is not applicable. Pricing and availability can change, so procurement should rely on current distributor or manufacturer quotes.
直接替换替代料： STM32F103R8T7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
GD32F103R8T6
✅ 直接替换📋 参考替代料（不在目录中）
STM32F103R8T7 最大额定值与电气特性
| Core | Arm Cortex-M3 |
| Architecture | 32-bit RISC |
| Maximum Operating Frequency | 72 MHz |
| Flash Memory | 64 KB |
| Product Family | STM32F1 medium-density performance line |
| Timer Count | 7 x 16-bit timers |
| ADC Count | 2 ADCs |
| Communication Interfaces | 9 communication interfaces |
| USB | Integrated USB |
| CAN | Integrated CAN |
| 封装 | 64-LQFP, 10 mm x 10 mm |
| 安装类型 | Surface Mount |
STM32F103R8T7 64-lqfp, 10 mm x 10 mm 引脚配置指南
STM32F103R8T7（64-lqfp, 10 mm x 10 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32F103R8T7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32F103R8T7 适用于 6 应用s: Industrial Control and Automation, USB-Connected Embedded Peripheral, CAN Network Sensor Node, Motor Control and PWM System, Analog Monitoring and Instrumentation, Embedded Data Acquisition Module.
Industrial Control and Automation
The STM32F103R8T7 fits industrial control nodes that require deterministic embedded processing alongside timers, ADCs, USB, and CAN. Its 72 MHz Arm Cortex-M3 core can execute supervisory logic while the two ADCs monitor process inputs and the seven 16-bit timers support periodic control tasks. The device is useful in sensor hubs, test fixtures, and compact PLC-style modules where the 64-LQFP package provides external GPIO and interface access. The engineer should allocate firmware memory carefully because the verified listing confirms 64 KB Flash but does not provide RAM details.
推荐
USB-Connected Embedded Peripheral
STM32F103R8T7 is suitable for USB-connected peripherals because the verified device description identifies integrated USB, a 72 MHz core, and multiple communication interfaces. A USB peripheral can use the MCU for protocol handling, control logic, and local status reporting without requiring a separate high-performance processor. The 64-LQFP format exposes the required GPIO, clock, reset, and power connections. Final design work must verify the exact USB role, connector, transceiver or internal USB requirements, power management, and electrical compliance in the manufacturer documentation.
推荐
CAN Network Sensor Node
The STM32F103R8T7 can serve as a CAN-connected sensor node because the verified specifications identify integrated CAN, two ADCs, and seven 16-bit timers. Analog sensors can feed the ADC channels while the Cortex-M3 core performs local filtering, thresholding, diagnostics, and data formatting. Timers support acquisition cycles and communication timing, while CAN provides a network interface to a higher-level controller. Designers should verify transceiver selection, termination, isolation needs, bus timing, and all 64-LQFP pin assignments in the final schematic.
推荐
Motor Control and PWM System
STM32F103R8T7 is applicable to compact motor-control systems because its 72 MHz Arm Cortex-M3 core provides real-time processing and its seven 16-bit timers support PWM, capture, and timing functions. Two ADCs can measure feedback signals such as current or position when the external sensing front end provides suitable conditioning. The MCU can coordinate control calculations, protection thresholds, and communication with a host or CAN network. Power-stage layout, current sensing accuracy, switching noise, thermal performance, and safe-state behavior require separate validation.
推荐
Analog Monitoring and Instrumentation
The two integrated ADCs make STM32F103R8T7 a reasonable controller for compact instrumentation that measures analog inputs and reports results through USB, CAN, or another communication interface. The 72 MHz core can run sampling sequencing, calibration logic, filtering, diagnostics, and a user interface while the timers establish repeatable measurement periods. The supplied data does not specify ADC resolution, input count, sampling rate, or accuracy, so those values must be taken from the complete manufacturer datasheet before analog design sign-off. Analog grounding and reference layout remain critical.
推荐
Embedded Data Acquisition Module
STM32F103R8T7 can serve as the processing center of a small embedded data-acquisition module when the design needs local control plus USB or CAN connectivity. The 64 KB Flash is useful for fixed control and buffering functions, while the timers can organize sampling intervals and the ADC peripherals can digitize selected inputs. The 64-LQFP package provides a conventional surface-mount integration path for boards that need numerous external signals. Firmware architecture, RAM usage, calibration storage, watchdog behavior, and connector protection are not specified in the verified data and must be designed explicitly.
推荐
推荐产品汇总
工程参考数据： STM32F103R8T7 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | GD32F103R8T6 |
|---|---|---|
| Brand | STMicroelectronics | GigaDevice |
| Package | 64-LQFP, 10 mm x 10 mm | 64-LQFP |
关键差异点
- STMicroelectronics STM32F103 family support and exact target specification （对比 GD32F103R8T6)
- Documented integrated peripheral set （对比 GD32F103R8T6)
- Known 64-LQFP mechanical target （对比 GD32F103R8T6)
设计说明
Use the official STM32F103R8 package drawing as the authority for every 64-LQFP connection. Place the required decoupling capacitors close to the associated supply pins and route ground returns through a continuous low-impedance plane. Keep clock routing short and controlled, and preserve access to reset and debug signals. Because the supplied data does not include a complete pin table, do not infer unused-pin assignments from generic STM32F103 diagrams.
Do not treat STM32F103R8T7 and STM32F103R8T6 as interchangeable without checking the exact suffix in the manufacturer ordering information. Likewise, verify that a proposed replacement has the same 64-LQFP pin mapping, memory organization, clock behavior, and required peripheral functions. Firmware startup code, interrupt mappings, register differences, errata, and production qualification can invalidate a replacement even when the package looks identical.
For USB or CAN implementations, separate sensitive analog and communication routing from switching-power and motor-drive paths. Confirm termination, common-mode requirements, ESD protection, connector return paths, and transceiver electrical characteristics from the selected interface component data. The STM32F103R8T7 provides the MCU-side controller functions identified in the verified data, but the external transceiver and connector design determine practical signal integrity.
Budget the supply rail and decoupling network for the MCU, analog converters, communication interfaces, and connected external components. Check the permitted voltage range and current consumption in the complete manufacturer datasheet because these values are not included in the supplied verified snippets. Add appropriate bulk and local decoupling, control power-up sequencing where required by the system, and verify brownout and reset behavior during power transitions.
合规信息
Compliance status is not stated in the supplied verified web data. Obtain current STMicroelectronics product declarations and material-compliance documentation before regulated production.