STM32F101R8T6 - 36MHz Cortex-M3 64KB MCU | STMicroelectronics
部品番号: STM32F101R8T6 ✓ 生産中STM32F101R8T6 概要
A microcontroller is a programmable semiconductor that combines a CPU core, memory, peripherals, and communication interfaces on one integrated circuit. Within the embedded-system hierarchy, the STM32F101R8T6 is an ARM Cortex-M3 MCU, a 32-bit RISC controller within the broader STM32 family of Arm-based microcontrollers and embedded processors. Its general-purpose architecture supports control logic, sensor acquisition, communications, motor control, and user-interface functions without requiring a separate processor.
The principal features include a maximum operating frequency of 36 MHz, 64 KB of Flash, 10 KB of RAM, one 12-bit ADC, six timers, and seven communication interfaces. The LQFP-64 package provides 48 I/O pins according to the device listing while supporting both leaded PCB assembly and straightforward inspection. A 2.5 V or 3.3 V operating designation suits conventional embedded-control boards and industrial equipment that use standard 3.3 V logic.
The STM32F101R8T6 uses the ARM Cortex-M3 processor architecture, which provides deterministic instruction execution and a broad peripheral ecosystem. Its flash-resident firmware, SRAM workspace, ADC, timers, and serial interfaces allow a complete application to be implemented around a single device. Seven communication interfaces make the MCU appropriate for systems that must connect sensors, external controllers, displays, or data-conversion equipment without depending on multiple discrete interface devices.
Typical applications include industrial sensor nodes, motor-control controllers, communication modules, building-control equipment, data-acquisition systems, and compact consumer appliances. The combination of 64 KB Flash and 10 KB RAM is well suited to protocol conversion, supervisory control, configuration management, and applications that periodically collect measurements through the ADC.
PCB design should preserve clean analog and digital ground behavior around the ADC, provide the required decoupling at each supply pin, and route high-current or high-switching-node connections away from sensitive analog inputs. Confirm the exact peripheral mapping and alternate-function assignments against the manufacturer datasheet before assigning board signals, particularly where several timer channels or communication functions share pins.
This product page combines manufacturer-family information, distributor specifications, cross-reference analysis, package details, and practical replacement guidance. It is intended to support faster engineering selection while preserving the distinction between a footprint-compatible candidate and a fully qualified, application-tested substitute.
ドロップイン代替品: STM32F101R8T6 — 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: STM32F101R8T6 （同一形状・フットプリント） — 相違点: Flash Memory, Package, Architecture, Product Type, Program Memory Type.
STM32F101RBT6TR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F101RCT6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32F101RDT6
✅ 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 →STM32F101RET6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
GD32F101R8T6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F101R8T6 最大定格＆電気的特性
| Product Type | 32-bit RISC microcontroller |
| CPU Core | ARM Cortex-M3 |
| 最大クロック周波数 | 36 MHz |
| Flash Memory | 64 KB |
| RAM | 10 KB |
| ADC | 1 x 12-bit ADC |
| Timer Count | 6 timers |
| Communication Interfaces | 7 communication interfaces |
| I/O Pins | 37 I/O ports |
| 電源電圧 | 2.5 V or 3.3 V |
| パッケージ | 64-LQFP (10 mm x 10 mm) |
| 実装タイプ | Surface mount |
| Architecture | ARM-based 32-bit RISC |
| Product Series | STM32F1 |
| Product Line | STM32F101 medium-density access line |
| Program Memory Type | Flash |
| RoHS ステータス | Compliant |
STM32F101R8T6 64-lqfp (10 mm x 10 mm) ピン配置ガイド
STM32F101R8T6 (64-lqfp (10 mm x 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: STM32F101R8T6.
詳細は データシート をご参照ください。
主な用途
STM32F101R8T6 の用途: 6 件s: Industrial Sensor and Condition Monitoring, Motor Control and Actuator Control, Industrial Communication Gateway, Data Acquisition Front End, Building and HVAC Controller, Connected Embedded Control Module.
Industrial Sensor and Condition Monitoring
The STM32F101R8T6 fits condition-monitoring equipment that combines periodic sensor acquisition with local filtering and communications. Its 12-bit ADC supports analog measurement, while six timers help schedule sampling and control peripheral timing. With 64 KB of Flash and 10 KB of RAM, the controller can hold application firmware, calibration tables, diagnostic state, and short communication buffers. A 36 MHz Cortex-M3 core provides useful throughput for preprocessing signals before transmission. The 2.5 V or 3.3 V designation also supports conventional 3.3 V industrial electronics, although transient protection, isolation, grounding, and calibrated analog conditioning should be addressed at the system level.
おすすめ
Motor Control and Actuator Control
The STM32F101R8T6 is appropriate for compact motor and actuator controllers that require deterministic timing alongside mixed analog and digital control functions. Its six timers can coordinate PWM generation, input capture, counting, and periodic servicing, while the 12-bit ADC can monitor current, position, or temperature feedback. The 36 MHz Cortex-M3 core has sufficient performance for a structured control loop without requiring a high-end digital signal controller. Use the timer outputs for power-stage drive signals and isolate noisy switching nodes from ADC inputs. Firmware should include timing checks, safe-state behavior, and current-limit handling because the MCU does not independently guarantee safe motor behavior during a firmware or power fault.
おすすめ
Industrial Communication Gateway
The STM32F101R8T6 can serve as a compact protocol gateway or embedded communications controller when the design needs both serial interfaces and local processing. Seven communication interfaces provide resources for connecting sensors, remote equipment, converters, or service ports, while the 36 MHz Cortex-M3 core supports frame handling and protocol translation. The 64 KB Flash capacity is suitable for moderate firmware sizes, and the 10 KB RAM can support compact transmit and receive queues. Designers should map the selected UART, SPI, or other interface signals against the exact pin table and add appropriate line protection for cables extending beyond the board. Clocking and peripheral instances must also be reviewed before assigning functions simultaneously.
おすすめ
Data Acquisition Front End
The STM32F101R8T6 is suitable for a compact data-acquisition front end that must convert analog inputs into digital measurements and then filter, scale, or forward the results. The integrated 12-bit ADC handles the conversion stage, and six timers can trigger measurements at defined intervals or coordinate with external events. Its 10 KB SRAM supports short working buffers, while the 64 KB Flash region accommodates calibration, filtering, and communication routines. Place analog traces away from switching nodes, use a stable reference arrangement, and follow the datasheet acquisition requirements. For higher sampling rates, longer records, or simultaneous channels, verify whether the internal ADC bandwidth and CPU throughput meet the complete signal-chain specification.
おすすめ
Building and HVAC Controller
The STM32F101R8T6 is well matched to building-control and HVAC controller roles that combine environmental sensing, actuator control, and status reporting. The ADC can monitor temperature or other analog conditions, the timers can drive periodic control updates, and the communication interfaces can connect to sensors, displays, or a supervisory controller. Its 36 MHz core and 10 KB RAM are adequate for supervisory logic and compact control loops. A 3.3 V-based controller board simplifies integration with modern digital peripherals, but mains-connected equipment requires reinforced isolation, surge protection, and appropriate separation between the low-voltage MCU domain and hazardous power circuitry.
おすすめ
Connected Embedded Control Module
The STM32F101R8T6 can serve as the local controller in a connected appliance or embedded module that needs protocol handling, real-time control, and status reporting. Seven communication interfaces support connections among a host controller, sensor hub, display, or wireless module, while six timers provide event scheduling and actuator timing. The 64 KB Flash and 10 KB RAM capacity fit medium-complexity firmware without requiring external memory. Designers should reserve pins for boot and debugging, implement a stable clock and reset design, and check the maximum load on each 3.3 V rail. If the product must be updated over its communications interface, include adequate flash endurance margins and a controlled recovery path for interrupted firmware upgrades.
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: STM32F101R8T6 — 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 | STM32F101RBT6TR | STM32F101RCT6 | STM32F101RDT6 | STM32F101RET6 | GD32F101R8T6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Package | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum Clock Frequency | 36 MHz | 36 MHz | 36 MHz | 36 MHz | 36 MHz | 56 MHz |
| Flash Memory | 64 KB | 128 KB | 256 KB | 384 KB | 512 KB | 64 KB |
主な差別化要因
- Native STMicroelectronics family support （vs GD32F101R8T6)
- Exact 64 KB Flash configuration （vs STM32F101RBT6TR)
- Consistent medium-density resource set （vs STM32F101RET6)
設計ノート
Place the required bypass capacitors directly beside the device supply and ground pins, and keep the power-distribution path short to limit impedance and transient current. Separate analog and digital supply paths where the board architecture permits. Verify the 2.5 V or 3.3 V operating designation against the complete STM32F101x8 electrical limits before selecting regulators or regulator tolerances.
Assign every external signal from the STM32F101R8T6 pin-description table rather than from another STM32 family member. AF1 through AF0 and other configuration-dependent pins can change function after reset, so PCB assignments must include every required startup state. Preserve access to SWD programming and reset pins, and avoid routing high-current outputs or switching nodes beneath sensitive ADC and clock traces.
Treat the ADC inputs as sensitive analog nodes. Use a quiet ground reference, short traces, controlled spacing from digital switching paths, and source impedance appropriate for the selected sampling rate. The 12-bit ADC should be exercised with the manufacturer's recommended acquisition time and reference arrangement. If external signals exceed the device supply range, add protection before the MCU pins rather than relying on internal clamps.
A higher clock rating does not by itself establish a qualified drop-in substitution. For the GD32F101R8T6 candidate, the maximum frequency rises from 36 MHz to 56 MHz, so clock-tree settings, flash timing, peripheral behavior, startup, and firmware dependencies must be revalidated. Preserve the original STM32 toolchain and peripheral configuration until a complete hardware and software qualification campaign is complete.
コンプライアンス情報
RoHS compliance is identified in the component listing. No definitive REACH, halogen-free, conflict-minerals, or automotive qualification statement is available for this exact ordering code.