STM32F103TBU6TR - 72MHz Cortex-M3 MCU, 128KB Flash | STMicroelectronics (Tape & Reel)
部品番号: STM32F103TBU6TR ✓ 生産中STM32F103TBU6TR 概要
A microcontroller, or MCU, integrates a processor core, memory, peripherals, and interface circuitry on one semiconductor device. The STM32F103TB is an Arm Cortex-M3 RISC MCU within the STM32 family, combining general-purpose embedded processing with analog measurement, timing, serial communications, and motor-control resources. Its UFQFPN surface-mount package supports compact PCB layouts while retaining a substantial pin count for external memory, sensors, actuators, and communications.
Principal features include a 72 MHz maximum operating frequency, 128 KB Flash, two 12-bit ADCs, three general-purpose 16-bit timers, an additional PWM timer, USB, CAN, and nine communication interfaces. These resources allow the STM32F103TBU6TR to handle control loops, data acquisition, protocol bridging, and peripheral supervision without requiring separate logic devices. The 36-pin package provides access to the mixed-signal and communication resources required by embedded systems.
The STM32F103TBU6TR uses a 32-bit Arm Cortex-M3 RISC core and belongs to STMicroelectronics' medium-density performance line. Its combination of 128 KB Flash and 72 MHz operation provides useful headroom for protocol stacks and real-time control firmware. Two ADCs support analog measurements, while the timer and PWM resources are appropriate for motor, lighting, and general timing functions. USB and CAN connectivity enables direct host-device or industrial network implementations.
Typical applications include USB-connected data loggers, CAN-based industrial controllers, motor-control boards, sensor-acquisition systems, and compact embedded instruments. Designers can use the two ADCs for analog inputs, the communication interfaces for host or network links, and the timers for precise periodic or PWM functions. The same 6 x 6 mm package also makes it suitable for space-constrained control modules where a smaller MCU with fewer pins would be insufficient.
When laying out the PCB, place the MCU's decoupling capacitors and analog-supply components according to the manufacturer's reference layout, and route sensitive analog inputs away from fast digital and communication signals. Firmware should account for the 72 MHz clock, peripheral initialization sequence, and any external peripheral requirements. If GD32F103TBU6 is considered as a second source, validate clock wait states, Flash behavior, ADC characteristics, and peripheral differences in hardware.
This page consolidates verified distributor pricing, manufacturer specifications, package information, strict same-package alternatives, and practical migration guidance. It also identifies missing datasheet details rather than estimating them, providing engineers with a source for initial design review, sourcing, and replacement planning.
ドロップイン代替品: STM32F103TBU6TR — 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: STM32F103TBU6TR （同一形状・フットプリント） — 相違点: Flash Memory, Package, Core, Product Type, RoHS Status.
STM32F103T8U6
✅ 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 →STM32F103T6U6
✅ 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 →STM32F101TBU6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32F101T8U6
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
GD32F103TBU6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F103TBU6TR 最大定格＆電気的特性
| Product Type | 32-bit ARM-based microcontroller |
| Core | Arm Cortex-M3 |
| 最大クロック周波数 | 72 MHz |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 |
| ADC Resolution | 12-bit |
| ADC Count | 2 |
| General-Purpose Timer Count | 3 |
| PWM Timer Count | 1 |
| Total Timer Count | 7 |
| Communication Interface Count | 9 |
| Interface Features | USB and CAN |
| パッケージ | 36-VFQFPN (6 x 6 mm) |
| 実装タイプ | Surface mount |
STM32F103TBU6TR 36-vfqfpn (6 x 6 mm) ピン配置ガイド
STM32F103TBU6TR (36-vfqfpn (6 x 6 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: STM32F103TBU6TR.
詳細は データシート をご参照ください。
主な用途
STM32F103TBU6TR の用途: 6 件s: USB Data Logger, CAN-Based Industrial Controller, Motor Control and PWM Driver, Analog Sensor Acquisition, USB-to-Serial Protocol Bridge, Compact Embedded Control Module.
USB Data Logger
STM32F103TBU6TR fits a USB data logger because it combines a 72 MHz Arm Cortex-M3 core, 128 KB of Flash, USB, two 12-bit ADCs, and seven timers in a 36-VFQFPN package. The MCU can sample analog inputs, manage timestamps and storage control, and format records for a USB host. Its 128 KB Flash provides more firmware space than lower-memory STM32F103TB variants, although USB enumeration, suspend behavior, and bus timing still require board-level validation. The package also leaves access to communication peripherals for a local host or configuration link.
おすすめ
CAN-Based Industrial Controller
STM32F103TBU6TR is suitable for a CAN-based industrial controller because the verified device data identifies CAN support, nine communication interfaces, two 12-bit ADCs, and a 72 MHz processing core. The controller can combine sensor acquisition with periodic control and network communication while retaining 128 KB of Flash for protocol and application code. A practical design would add the appropriate CAN transceiver, bus protection, termination, and isolation as required. Firmware should validate arbitration, error handling, timing, and recovery because the retrieved sources do not provide detailed CAN electrical limits.
おすすめ
Motor Control and PWM Driver
STM32F103TBU6TR supports motor-control and PWM applications through its 72 MHz Cortex-M3 core, three general-purpose 16-bit timers, one PWM timer, seven timers total, and two 12-bit ADCs. These resources allow a controller to measure analog feedback, calculate control actions, and generate PWM drive signals. The 36-VFQFPN package provides enough connections for gate-driver interfaces, sensing, and communications. Designers must verify individual timer channel counts, complementary outputs, ADC trigger behavior, and pin remapping in the manufacturer documentation before assigning the exact motor-control topology.
おすすめ
Analog Sensor Acquisition
STM32F103TBU6TR can serve as the acquisition and processing MCU in analog sensor systems because it provides two 12-bit ADCs together with 72 MHz processing and 128 KB of Flash. The device can digitize sensor signals, perform filtering or calibration, and forward results through USB, CAN, or one of its other communication interfaces. Analog design should separate sensitive input routing from digital clocks and communication lines, use suitable filtering, and account for the MCU's internal reference and supply requirements. Exact ADC accuracy, sampling rate, input impedance, and channel multiplexing details remain to be confirmed from the manufacturer datasheet.
おすすめ
USB-to-Serial Protocol Bridge
STM32F103TBU6TR is appropriate for a protocol-bridge product because USB, nine communication interfaces, seven timers, and 128 KB of Flash provide enough resources to implement multiple conversion or monitoring paths. Firmware can maintain USB connectivity while exchanging data with serial devices, monitoring timing, and buffering protocol data. The 72 MHz core provides processing margin, while the 36-pin package accommodates multiple peripheral connections. Before production, validate USB signal integrity, enumerate supported bridge modes, test hot-plug behavior, and confirm that each selected communication peripheral is available on the intended package pins.
おすすめ
Compact Embedded Control Module
STM32F103TBU6TR is well matched to compact embedded control modules that need substantial processing and peripheral integration without a large package. Its 72 MHz Cortex-M3 core, 128 KB of Flash, USB, CAN, two ADCs, and seven timers support sensing, communications, and real-time control in a 6 x 6 mm UFQFPN footprint. The exposed-pad package requires careful thermal design and PCB land-pattern compliance, while the dense footprint makes pin multiplexing and signal-integrity review important. It is particularly useful when a smaller low-pin-count MCU would not provide enough ADC, timer, or communications resources.
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: STM32F103TBU6TR — 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 | STM32F103T8U6 | STM32F103T6U6 | STM32F101TBU6 | STM32F101T8U6 | GD32F103TBU6 |
|---|---|---|---|---|---|---|
| Package | 36-VFQFPN (6 x 6 mm) | 36-VFQFPN (6 x 6 mm) | 36-VFQFPN (6 x 6 mm) | 36-VFQFPN (6 x 6 mm) | 36-VFQFPN (6 x 6 mm) | 36-VFQFPN (6 x 6 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Core | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 | Arm Cortex-M3 |
| Maximum Clock Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 108 MHz |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | ADC behavior differs |
| USB and CAN Support | USB and CAN | USB and CAN | USB and CAN | Peripheral availability requires datasheet verification | Peripheral availability requires datasheet verification | Pin-to-pin candidate; peripheral behavior requires validation |
主な差別化要因
- Largest Flash capacity among the listed same-package STM32F103TB alternatives （vs STM32F103T8U6)
- Substantially more Flash than the 32 KB STM32F103T6U6 （vs STM32F103T6U6)
- Known STM32F103 peripheral set with two ADCs, seven timers, USB, and CAN （vs GD32F103TBU6)
- Same package footprint as the F101TBU6 while retaining verified STM32F103 resource levels （vs STM32F101TBU6)
設計ノート
Use the exact STMicroelectronics 36-VFQFPN land pattern rather than a generic QFN-36 footprint. The package includes an exposed pad, so confirm pad dimensions, solder-mask opening, paste stencil, and annular-ring requirements against the manufacturer package drawing. Place input and internal bypass capacitors close to their associated supply pins, provide an uninterrupted ground path beneath the exposed pad, and avoid placing high-current return paths through the sensitive analog region.
Do not treat a GD32F103TBU6 substitution as a firmware-transparent change merely because the pins align. The verified cross-reference identifies a 108 MHz maximum clock versus 72 MHz, zero-wait SRAM-buffered Flash, and different ADC behavior. Recheck startup timing, Flash wait states, interrupt behavior, register compatibility, ADC calibration, and communications timing. Production approval should include boundary tests, brownout tests, temperature tests, and firmware regression testing on the actual PCB.
Separate analog sensing from USB, CAN, and high-speed digital routing. Place analog filtering components close to the sensor input or ADC pins, keep the ground reference continuous, and avoid routing communications signals beneath sensitive inputs. Verify the exposed-pad connection and via pattern using the manufacturer layout guidance. Because the supplied data does not include ADC acquisition-time figures or reference tolerances, derive settling-time and calibration margins from the complete datasheet before selecting high-impedance sensors.
Estimate supply current from the operating modes that matter: maximum CPU clock, active ADC conversions, active USB or CAN traffic, and all enabled peripherals. Do not base thermal sizing on a single nominal-current value. Validate the regulator's startup behavior, voltage tolerance, decoupling requirements, and any analog-supply filtering against the manufacturer datasheet. Actual board thermal performance should then be checked with the populated 36-VFQFPN package and its exposed-pad solder pattern.
コンプライアンス情報
The supplied manufacturer and distributor records do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Current compliance documents must be obtained from STMicroelectronics before production release.