STM32F103RBT7 - 72MHz Cortex-M3 128KB MCU | STMicroelectronics
料号： STM32F103RBT7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
STM32F103RBT7 概述
A microcontroller is a programmable embedded-system component that combines a processor core, memory, peripherals, and communication interfaces on one semiconductor device. The STM32F103 belongs to STMicroelectronics’ medium-density performance line and is used to control motors, industrial equipment, communications, sensors, and consumer products. Its Cortex-M3 architecture provides a 32-bit RISC platform while retaining low system complexity for embedded designs.
The verified product information identifies a maximum operating frequency of 72 MHz, 128 KB Flash memory, USB, CAN, seven 16-bit timers, two ADCs, and nine communication interfaces. These peripherals support applications requiring analog measurement, timing, serial communications, motor-control feedback, USB connectivity, or CAN-based distributed control. The 64-LQFP package provides a conventional surface-mount footprint suitable for automated PCB assembly.
The STM32F103RBT7 is positioned for designs that need more processing performance and peripheral integration than a basic 8-bit or low-density microcontroller, while remaining within the STM32F103 family ecosystem. Its USB and CAN interfaces make it useful for connected embedded equipment, and its dual ADC capability supports analog sensor acquisition. The exact RAM size, supply-voltage limits, pin assignments, and detailed electrical characteristics are not included in the supplied verified data and must be confirmed in the manufacturer datasheet.
Typical implementations include industrial motor controllers, USB-connected data-acquisition devices, CAN network nodes, instrumentation, communications equipment, and compact control platforms. Designers should preserve the package footprint, verify every alternate-function pin, confirm memory-map and peripheral compatibility, and review the official STM32F103RB documentation before transferring firmware between MCU variants.
A key sourcing consideration is that an electrically similar MCU may not be a true drop-in replacement. Package dimensions, pin multiplexing, peripheral behavior, clock requirements, memory organization, firmware support, and lifecycle expectations must all be checked. This page distinguishes verified product facts from unresolved specifications and avoids inventing values that were not present in the supplied data.
直接替换替代料： STM32F103RBT7 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32F103RBT7 （相同外形与封装尺寸） ——差异在于 ADC, Package, Flash Memory, GPIO Count, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
STM32F103CBT6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.2 / 个
查看数据手册 →STM32F103R8T6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.9 / 个
查看数据手册 →STM32F103RET6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.2148 / 个
查看数据手册 →GD32F103RCT6
✅ 直接替换📋 参考替代料（不在目录中）
APM32F103RCT6
✅ 直接替换📋 参考替代料（不在目录中）
STM32F103RBT7 最大额定值与电气特性
| Product Type | 32-bit microcontroller |
| Processor Core | Arm Cortex-M3 |
| Maximum CPU Frequency | 72 MHz |
| Flash Memory | 128 KB |
| Architecture | 32-bit RISC |
| Timers | Seven 16-bit timers |
| ADC | Two ADCs |
| Communication Interfaces | Nine communication interfaces |
| USB Interface | USB |
| CAN Interface | CAN |
| 封装 | 64-LQFP 10 x 10 mm |
| 安装类型 | Surface Mount |
| Application Segment | Motor control, USB, and CAN |
| Core Performance | 90 DMIPS; 1.25 DMIPS/MHz |
| 引脚数量 | 64 pins |
STM32F103RBT7 64-lqfp 10 x 10 mm 引脚配置指南
STM32F103RBT7（64-lqfp 10 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： STM32F103RBT7.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32F103RBT7 适用于 6 应用s: Industrial Motor Controllers, USB Connected Data Acquisition, CAN Network Nodes, Instrumentation and Sensor Systems, Communications Equipment, Compact Embedded Control Platforms.
Industrial Motor Controllers
STM32F103RBT7 is a strong candidate for industrial motor-control equipment because its verified 72 MHz Arm Cortex-M3 core provides real-time processing while seven 16-bit timers support timing, PWM, capture, and motor-control sequencing. The two ADCs can process feedback and analog sensor channels, while USB and CAN provide commissioning and distributed-control connectivity. A designer should verify timer channel assignments, ADC sampling requirements, pin multiplexing, external drivers, protection networks, and thermal performance in the exact package before layout.
推荐
USB Connected Data Acquisition
STM32F103RBT7 fits compact USB data-acquisition products where a 72 MHz Cortex-M3 core can manage control logic and communication overhead. Its two ADCs provide analog conversion channels, while the verified USB feature supports a direct embedded-connection architecture. The final board still needs verified input protection, analog conditioning, reference design, sampling timing, USB routing, and power design. The supplied data does not specify ADC resolution or sampling rate, so those values must come from the manufacturer datasheet.
推荐
CAN Network Nodes
STM32F103RBT7 is suitable for CAN-connected embedded nodes because CAN is explicitly identified as a supported feature. The MCU can combine protocol handling, timing, and local control while the 128 KB Flash provides room for application firmware. A practical implementation still requires an external CAN transceiver, correct termination, fault-safe bus interface, oscillator and reset planning, and validation of pin assignments. Do not assume that another STM32F103 ordering code is interchangeable without checking the exact pinout and peripheral map.
推荐
Instrumentation and Sensor Systems
STM32F103RBT7 can serve as the control processor in instrumentation and sensor systems where digital control, analog measurement, and communications are required in one device. The two ADCs support sensor acquisition, while the 72 MHz core can manage filtering, calibration, and host communication. Practical implementations must verify ADC characteristics, input ranges, analog grounding, noise performance, sensor excitation, and connector protection. The verified product data establishes the feature set and package but does not provide analog accuracy figures.
推荐
Communications Equipment
STM32F103RBT7 is appropriate for communications equipment that needs USB or CAN connectivity alongside general-purpose embedded processing. The Arm Cortex-M3 architecture and 72 MHz operating frequency provide a balance of control capability and integration, while nine communication interfaces broaden the design options described by the verified data. Engineers should still confirm the exact peripheral list, alternate-function routing, protocol licensing, transceiver requirements, and package-level signal integrity in the official documentation before schematic capture.
推荐
Compact Embedded Control Platforms
STM32F103RBT7 can serve as the central controller in compact industrial or consumer embedded platforms that require more capability than a basic microcontroller. Its 72 MHz Cortex-M3 core handles application logic, 128 KB Flash stores firmware, seven timers support periodic and event-driven tasks, and USB or CAN provides external connectivity. The 64-LQFP 10 x 10 mm package is suitable for automated assembly, but layout must follow verified pin assignments, power requirements, decoupling, and thermal guidelines.
推荐
推荐产品汇总
工程参考数据： STM32F103RBT7 ——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 | STM32F103CBT6 | STM32F103R8T6 | STM32F103RET6 | GD32F103RCT6 | APM32F103RCT6 |
|---|---|---|---|---|---|---|
| Package | 64-LQFP 10 x 10 mm | LQFP-64 10 x 10 mm | LQFP-64 10 x 10 mm | LQFP-64 10 x 10 mm | LQFP-64 10 x 10 mm | LQFP-64 10 x 10 mm |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice | Geehy |
| Processor Core | Arm Cortex-M3 | Arm Cortex-M3 family; verify exact specification | Arm Cortex-M3 family; verify exact specification | Arm Cortex-M3 family; verify exact specification | STM32F103-class candidate; verify exact core | STM32F103-class candidate; verify exact core |
关键差异点
- Verified 72 MHz Cortex-M3 performance target （对比 GD32F103RCT6)
- Verified USB and CAN connectivity （对比 APM32F103RCT6)
- Verified 128 KB Flash configuration （对比 STM32F103R8T6)
- Documented STM32F103 family ecosystem （对比 STM32F103CBT6)
设计说明
The supplied data does not specify the STM32F103RBT7 supply-voltage range or current limits, so power rails must be selected only after checking the official datasheet. Place the required bypass capacitors close to the device power pins and confirm the external clock, reset, and USB or CAN interface power requirements. Validate startup current, regulator tolerance, transient response, and peripheral current before releasing the PCB.
Use the verified 64-LQFP 10 x 10 mm footprint only after checking the official package drawing and land pattern. Confirm pin numbering, exposed thermal requirements, solder-mask clearance, and courtyard dimensions with the PCB library and assembly house. Because alternate functions are not provided in the verified data, do not assign USB, CAN, timer, or ADC functions until the complete pinout has been reviewed.
A same-package candidate is not automatically a drop-in replacement. For every alternative, compare pin multiplexing, memory size, clock architecture, peripheral registers, interrupt mapping, boot behavior, USB or CAN implementation, and firmware toolchain compatibility. The supplied alternative results are evaluation leads rather than complete manufacturer cross-reference data, so production substitution requires schematic, PCB, firmware, and hardware validation.
For USB and CAN designs, preserve controlled return paths and place protection, termination, and transceiver components according to the relevant interface requirements. Keep sensitive analog routing away from switching nodes and maintain a clean ground reference for ADC inputs. The supplied data does not provide USB, CAN, ADC, or timing electrical characteristics, so impedance, rise-time, filtering, and layout decisions must be based on the official device documentation and system-level requirements.
合规信息
The supplied verified data does not state compliance status for RoHS, REACH, AEC-Q100, lead-free construction, halogen-free construction, or conflict minerals. These values must be confirmed from current manufacturer documentation.
