STM32F103RCT7 - 72MHz ARM Cortex-M3 MCU | STMicroelectronics
部品番号: STM32F103RCT7 ✓ 生産中STM32F103RCT7 概要
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripheral interfaces, and I/O in one device. The STM32F103RCT7 is specifically an ARM Cortex-M3 MCU, a member of the ARM Cortex-M product family designed for embedded control. Within the device hierarchy, it is a microcontroller within the broader semiconductor category, with the STM32F1 series providing a practical platform for industrial controls, motor-control systems, communication equipment, and connected products.
Key features include a 72 MHz Cortex-M3 core, 256 K × 8 Flash organization, 37 I/O ports, USB, CAN, and a 2 V to 3.6 V supply range. The 256 KB of embedded Flash supports firmware, boot code, configuration data, and application logic without requiring external program memory. Its 37 I/O pins provide parallel digital connectivity for sensors, actuators, displays, status indicators, and external communication transceivers.
The device uses the high-performance 32-bit ARM Cortex-M3 RISC architecture rather than an 8-bit controller, allowing it to process control algorithms, protocol stacks, and human-machine-interface logic efficiently. The 64-LQFP package exposes a larger pin count than smaller MCU packages, supporting broad peripheral connectivity while remaining compatible with automated board assembly. Its 0.5 mm lead pitch and 10 mm × 10 mm body size balance routing density and inspection accessibility.
Typical applications include industrial motor controllers, USB-connected data-acquisition equipment, CAN network nodes, USB-to-serial or protocol-conversion products, programmable logic controllers, and compact automation controllers. In each case, the combination of Cortex-M3 processing capability, embedded Flash, USB or CAN connectivity, and 37 I/O ports reduces the number of external devices required around the MCU.
Designers should reserve clean supply paths, connect decoupling capacitors close to the power pins, and assign all 64 LQFP leads according to the manufacturer pinout before layout release. Firmware and peripheral assignments should be checked against the STM32F103 device documentation, especially when debugging, bootloader use, or USB and CAN functions are required. The 3.6 V maximum supply also requires careful protection from industrial transients and overvoltage conditions.
This product record combines verified distributor specifications, lifecycle information, package details, and documented cross-reference options with practical design guidance. It helps engineers evaluate the STM32F103RCT7 against same-manufacture and cross-brand Cortex-M3 alternatives without overlooking firmware, clock, memory, or package validation requirements.
ドロップイン代替品: STM32F103RCT7 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM32F103RCT7 （同一形状・フットプリント） — 相違点: Package, SRAM, Series, Flash Memory, ADC.
STM32F103RGT7
✅ ドロップイン価格はお問い合わせください
データシートを見る →STM32F103RCT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →STM32F103RGT6
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →GD32F103RCT6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
GD32F103RGT6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F103RCT7 最大定格＆電気的特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | STM32F1 high-density performance line |
| Processor Core | ARM Cortex-M3 RISC core |
| 最大クロック周波数 | 72 MHz |
| Word Size | 32 bit |
| Flash Memory | 256 KB |
| Flash Organization | 256K × 8 |
| I/O Port Count | 37 ports |
| Supply Voltage Range | 2 V to 3.6 V |
| パッケージ | 64-LQFP |
| Package Body Size | 10 mm × 10 mm |
| Lead Pitch | 0.5 mm |
| 実装タイプ | Surface mount |
| Connectivity | USB and CAN |
| Program Memory Type | Flash |
| RoHS ステータス | Compliant |
| ライフサイクル状態 | Active |
STM32F103RCT7 10 mm × 10 mm ピン配置ガイド
STM32F103RCT7 (10 mm × 10 mm パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: STM32F103RCT7.
詳細は データシート をご参照ください。
主な用途
STM32F103RCT7 の用途: 6 件s: Industrial Motor Control, USB Data-Acquisition Controller, CAN Networked Sensor Node, USB-to-Serial Protocol Converter, Programmable Automation Controller, Compact Embedded Control Module.
Industrial Motor Control
The STM32F103RCT7 fits industrial motor-control controllers because its 72 MHz ARM Cortex-M3 core can execute real-time control logic while 37 I/O ports connect position sensors, switches, status LEDs, and gate-driver interfaces. Its 256 KB of Flash provides space for motion algorithms, fault handling, parameter storage, and communication routines without external program memory. In a 3.3 V control board, the device can supervise limit inputs and coordinate CAN commands while the 2 V to 3.6 V operating range provides compatibility with regulated industrial rails. The design must still include isolated power conversion, motor-driver protection, current sensing, surge suppression, and functional-safety measures appropriate to the machine.
おすすめ
USB Data-Acquisition Controller
The STM32F103RCT7 is appropriate for a USB data-acquisition controller because it integrates a 72 MHz Cortex-M3 core, 256 KB of Flash, USB connectivity, and 37 digital I/O ports in one 64-LQFP device. A typical circuit uses the MCU to sample external sensors, format readings, and transmit packets over USB while separate analog front ends condition the measured signals. The 72 MHz processing rate provides timing margin for sampling, filtering, and protocol handling, while embedded Flash can hold a USB bootloader and application firmware. Designers should verify USB transceiver requirements, crystal configuration, supply sequencing, and enumeration behavior against the manufacturer datasheet before PCB release.
おすすめ
CAN Networked Sensor Node
The STM32F103RCT7 supports CAN-connected sensor nodes by combining its integrated CAN peripheral with a 72 MHz 32-bit processor, 256 KB of Flash, and 37 I/O ports. This allows one MCU to acquire digital sensor inputs, run local filtering, manage device status, and forward measurements over a CAN network. Its embedded memory is sufficient for a bootloader, communication stack, calibration parameters, and application logic. In a 3.3 V industrial node, the verified 2 V to 3.6 V supply range fits a regulated rail, but the external CAN transceiver must match the bus voltage and isolation requirements. Bus termination, common-mode protection, firmware timing, and error handling remain essential design tasks.
おすすめ
USB-to-Serial Protocol Converter
The STM32F103RCT7 can serve as the core of a USB-to-serial protocol converter because it combines USB, a 72 MHz ARM Cortex-M3 processor, and 256 KB of Flash in a compact 64-LQFP package. The MCU can bridge USB traffic to UART, SPI, or I2C peripherals, perform protocol translation, buffer data, and provide device enumeration without a separate interface controller. Thirty-seven I/O ports support status indicators, configuration inputs, and multiple downstream channels. The 3.3 V supply range is compatible with many modern serial systems, although level translation may be required for 5 V peripherals. Firmware should include USB suspend, enumeration, baud-rate generation, buffering, and watchdog recovery paths.
おすすめ
Programmable Automation Controller
The STM32F103RCT7 is well suited to a programmable automation controller because its 72 MHz Cortex-M3 core handles sequential control tasks while 37 I/O ports connect field inputs and outputs. The 256 KB of embedded Flash can store ladder-like control logic, communication protocols, diagnostics, and operating parameters. Its integrated USB and CAN interfaces allow configuration over USB and networked operation over CAN without external bus controllers. Running from a regulated 3.3 V rail fits the verified 2 V to 3.6 V operating range, but isolated field inputs and relay drivers still require suitable protection. Firmware should include startup sequencing, watchdog handling, safe-state outputs, and brownout response to improve controller resilience.
おすすめ
Compact Embedded Control Module
The STM32F103RCT7 works well in a compact embedded control module because it integrates the 72 MHz ARM Cortex-M3 processor, 256 KB of Flash, 37 I/O ports, USB, and CAN into a 10 mm × 10 mm LQFP package. These resources allow a compact board to host control logic, local connectivity, and multiple digital interfaces without a separate processor. Its 2 V to 3.6 V supply range supports low-voltage embedded architectures and provides useful margin around a nominal 3.3 V rail. Engineers can place the MCU beside a USB connector, CAN transceiver, status LEDs, and sensor headers to create a compact gateway or controller. Decoupling, clock layout, exposed-ground connectivity, and thermal performance should be reviewed during PCB design.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM32F103RCT7 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STM32F103RGT7 | STM32F103RCT6 | STM32F103RGT6 | GD32F103RCT6 | GD32F103RGT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice | GigaDevice |
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) - same package | 64-LQFP (10x10) - same package | 64-LQFP (10x10) - same package | 64-LQFP (10x10) - same package | 64-LQFP (10x10) - same package |
| Processor Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | Cortex-M3-compatible GD32F103 | Cortex-M3-compatible GD32F103 |
| Maximum Clock Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz | Up to 108 MHz | Up to 108 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB class | 256 KB class |
| Architecture | 32-bit RISC | 32-bit RISC | 32-bit RISC | 32-bit RISC | 32-bit RISC | 32-bit RISC |
| Connectivity | USB and CAN | USB and CAN | USB and CAN | USB and CAN | STM32F103-compatible peripheral family | STM32F103-compatible peripheral family |
| Supply Voltage Range | 2 V to 3.6 V | 2 V to 3.6 V | 2 V to 3.6 V | 2 V to 3.6 V | Verify against GigaDevice datasheet | Verify against GigaDevice datasheet |
| I/O Port Count | 37 ports | 37 ports | 37 ports | 37 ports | STM32F103-compatible high-density class | STM32F103-compatible high-density class |
主な差別化要因
- Established 72 MHz STM32F1 performance baseline （vs GD32F103RCT6)
- Same-manufacturer sourcing path （vs GD32F103RGT6)
- Integrated connectivity in the MCU （vs STM32F103RBT6)
設計ノート
Place the MCU's decoupling capacitors immediately adjacent to the supply and ground pins, with the shortest possible return path through the ground plane. The verified operating range is 2 V to 3.6 V, so the power rail must remain below the 3.6 V maximum under transient conditions. Review the manufacturer pinout and package drawing before assigning every LQFP-64 lead; boot, debug, clock, and communication pins should not be treated as interchangeable general-purpose I/O.
Keep high-speed clock and debug routing away from sensitive analog or communication inputs, and provide a short return path beneath the MCU wherever the PCB stack-up permits. Since the LQFP package uses a 0.5 mm lead pitch, verify drill and courtyard dimensions against the manufacturer's land pattern. The provided package dimensions are 10 mm × 10 mm, but pin mapping was not included in the verified data, so a complete pin-by-pin schematic-to-layout comparison is mandatory before fabrication.
Do not treat a matching 64-LQFP footprint as sufficient proof of interchangeability. Same-brand STM32F103 ordering suffixes can indicate differences in temperature grade, packing, or product status, while GD32F103 alternatives operate up to 108 MHz compared with 72 MHz for the target. Review memory size, clock setup, peripheral behavior, bootloader assumptions, pin functions, and qualification status. Any cross-brand replacement should pass schematic review, firmware regression testing, timing analysis, and application-specific validation.
Design the 3.3 V supply path to remain within the verified 2 V to 3.6 V range during startup, load transients, and fault conditions. USB and CAN interface loads can add transient demand even though the MCU itself operates from a low-voltage rail. Add local bulk capacitance where appropriate, verify upstream regulator behavior, and account for inrush during USB attachment or peripheral startup. This guidance is general because the verified data did not include a complete power-consumption table.
コンプライアンス情報
RoHS compliance is explicitly stated in the verified STM32F103RCT7 product data. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was supplied.
