STM32F103RCY6CTR - 256KB Cortex-M3 MCU | STMicroelectronics
Référence : STM32F103RCY6CTR ✓ ActifSTM32F103RCY6CTR Présentation
An ARM Cortex-M3 microcontroller is a 32-bit embedded processor that combines a CPU core, memory, interrupt control, and peripherals on one integrated circuit. It belongs to the microcontroller hierarchy and executes firmware directly from embedded Flash. Compared with a general-purpose processor, the STM32F103 architecture is designed for real-time control, low-power operation, deterministic peripheral access, and compact industrial or commercial products.
The STM32F103RCY6CTR provides 256 KB of Flash for program storage, 3 ADC channels, and a peripheral set covering USB, CAN, timers, and multiple serial communication interfaces. USB and CAN support respectively removable data exchange and robust controller-area-network communications. The 11 timers support periodic timing, input capture, output compare, encoder-related measurement, and motor-control sequencing, while the 3 ADC channels provide analog-to-digital conversion for sensing and feedback applications.
The STM32F103 series is positioned by STMicroelectronics as its mainstream value line of high-density ARM-based microcontrollers. Its combination of Cortex-M3 processing, extensive timers, analog conversion, and communication peripherals allows a single device to consolidate functions that might otherwise require several discrete components. Software design should still account for the exact peripheral assignments and alternate-function settings listed in the manufacturer pin and reference documents.
Typical applications include industrial control boards, IoT gateways, USB-connected instruments, CAN-based monitoring equipment, electronic meters, compact motor controllers, and low-power embedded products. The 64-UFBGA/WLCSP format is especially useful for space-sensitive products, but its fine pitch requires careful PCB layout, solder-paste control, X-ray inspection, and assembly-process qualification.
Designers should review the package drawing, land pattern, exposed-pad or thermal requirements, and recommended PCB stack-up before layout. Firmware and peripheral configurations should be validated against the STM32F103 reference manual, especially for alternate-function pins, clock configuration, USB suspend behavior, and CAN timing. Because this package has a fine ball-grid pitch, assembly yield is as important as electrical performance.
This product page consolidates the identified electrical characteristics, package information, sourcing guidance, alternative-device caveats, and practical implementation considerations into one engineering-focused resource. It also distinguishes true pin-compatible substitution from broader MCU equivalence, helping teams evaluate second sourcing without overlooking memory, firmware, timing, qualification, or PCB-change risks.
Alternatives de remplacement direct pour STM32F103RCY6CTR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
STM32F103RCY6TR
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →GD32F103RCY6C
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
STM32F103RCY6CTR Valeurs maximales et caractéristiques électriques
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Program Memory | 256 KB Flash |
| CPU Architecture | ARM Cortex-M3, 32-bit |
| Boîtier | 64-UFBGA/WLCSP |
| Nombre de broches | 64 pins |
| Product Line | STM32F103 high-density performance line |
| Product Positioning | Mainstream value line |
| USB Interface | Yes |
| CAN Interface | Yes |
| Timer Count | 11 timers |
| ADC Count | 3 ADCs |
| Communication Interface Count | 13 communication interfaces |
| Style de montage | Surface mount |
Guide de configuration des broches du STM32F103RCY6CTR 64-ufbga/wlcsp
Configuration des broches du STM32F103RCY6CTR (boîtier 64-ufbga/wlcsp). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour STM32F103RCY6CTR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM32F103RCY6CTR convient pour 6 applications: Industrial Control and Automation, USB-Connected Embedded Instruments, CAN-Based Monitoring Equipment, Compact Motor-Control Systems, IoT Edge Sensors and Gateways, Electronic Metering and Measurement.
Industrial Control and Automation
The STM32F103RCY6CTR fits compact industrial controllers because its Cortex-M3 core, 256 KB of Flash, 11 timers, 3 ADCs, and 13 communication interfaces support both control logic and local communications. Use its timers for deterministic sampling or actuator sequencing, its ADCs for analog process inputs, and CAN or another serial interface for supervisory communication. The 64-UFBGA/WLCSP package reduces board area, but the layout must follow the manufacturer land pattern and thermal design. Firmware should reserve adequate Flash for diagnostics, protocol handling, and safe-state behavior, while production testing should verify communication timing and analog accuracy across the intended operating environment.
Recommandé
USB-Connected Embedded Instruments
The STM32F103RCY6CTR is appropriate for USB-connected instruments because it combines a 32-bit Cortex-M3 processor, USB connectivity, 256 KB of Flash, and multiple timers in a compact 64-UFBGA/WLCSP package. The microcontroller can manage data acquisition, device control, status reporting, and firmware storage while USB provides a direct host interface. Its 3 ADCs support analog measurement channels, although the selected signals must match the device's specified ADC characteristics. Board design should include careful USB signal routing, controlled-impedance geometry, correct decoupling, and ESD protection, followed by enumeration and suspend/resume testing with the intended host software.
Recommandé
CAN-Based Monitoring Equipment
The STM32F103RCY6CTR supports CAN-based monitoring nodes by combining a Cortex-M3 core, CAN, 11 timers, 3 ADCs, and a broad peripheral set in a small 64-UFBGA/WLCSP package. It can acquire sensor data, apply local filtering, timestamp events, and transmit status over a CAN network while retaining space for application firmware and diagnostics. CAN transceiver selection remains external to the MCU. The design should verify transceiver logic compatibility, termination strategy, isolation requirements, bus protection, and timing configuration. Firmware validation should include fault handling, bus-off recovery, and behavior during communication loss so the equipment enters an appropriate safe state.
Recommandé
Compact Motor-Control Systems
The STM32F103RCY6CTR is a strong candidate for compact motor-control systems because its 11 timers can organize commutation, capture, compare, and periodic-control functions, while 3 ADCs support current, position, or temperature feedback. The 256 KB Flash provides room for control algorithms, parameter storage, and diagnostics, and CAN or USB can expose telemetry and configuration. The exact timer channels and complementary-output capability must be matched to the motor topology before schematic assignment. Current-loop testing, dead-time verification, overcurrent behavior, thermal assessment, and disturbance testing are essential; the fine-pitch 64-UFBGA/WLCSP package also demands process-controlled PCB assembly.
Recommandé
IoT Edge Sensors and Gateways
The STM32F103RCY6CTR fits IoT edge sensors that require local control, USB or CAN connectivity, and a compact package. Its Cortex-M3 core and 256 KB Flash can execute protocol handling, sensor fusion, threshold logic, and update functions, while the 13 communication interfaces provide options for connecting embedded peripherals. The 3 ADCs are useful for basic analog sensing, though precision measurement designs may require a dedicated converter. To maximize the value of the 64-UFBGA/WLCSP footprint, keep high-speed routes short, provide local decoupling at power balls, and validate RF or network isolation. Production firmware should include secure startup, update rollback, and peripheral fault recovery.
Recommandé
Electronic Metering and Measurement
The STM32F103RCY6CTR supports electronic metering and measurement products that combine signal conditioning, computation, display control, and communications. Three ADCs can handle suitable analog inputs, 11 timers support accurate timebase and sampling tasks, and 256 KB of Flash accommodates measurement algorithms, calibration tables, and communications. The 64-UFBGA/WLCSP package helps reduce instrument size, although calibration storage and analog-channel isolation must be planned carefully. Validate ADC accuracy, reference stability, timing, and calibration behavior over temperature. If the metering function requires greater precision or channel count, use the MCU for control and add a dedicated ADC rather than assuming the integrated converters meet metrology-grade requirements.
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Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32F103RCY6CTR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32F103RCY6TR | GD32F103RCY6C |
|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | GigaDevice |
| Package | 64-UFBGA/WLCSP | 64-UFBGA/WLCSP - same | 64-UFBGA/WLCSP - same |
| CPU Core | ARM Cortex-M3, 32-bit | ARM Cortex-M3, 32-bit | Cortex-M3, 32-bit |
| Product Line | STM32F103 mainstream value line | STM32F103 mainstream value line | GD32F103 |
Principaux différenciateurs
- Mainstream STM32F103 firmware and peripheral continuity (vs GD32F103RCY6C)
- Identified key electrical ratings (vs STM32F103RCY6TR)
- Integration in space-constrained products (vs GD32F103RCY6C)
Notes de conception
Use the STMicroelectronics 64-UFBGA/WLCSP land pattern without substituting a generic 64-ball library. Ball pitch, pad diameter, solder-mask definition, paste apertures, and pad-to-pad clearances affect assembly yield. Keep the footprint compatible with the PCB fabrication process and place local bypass capacitors close to the relevant power and ground balls. Because hidden joints are difficult to inspect optically, plan X-ray inspection and process-control coupons for volume production.
Route USB, CAN, oscillator, and reset signals away from noisy switching nodes and maintain the layout recommendations in the manufacturer application material. USB differential traces should be length-matched and use a geometry compatible with the target board impedance. Keep crystal or clock paths short, provide clean ground references, and place any external storage or transceiver interfaces according to their timing and isolation requirements.
Do not treat a 64-pin WLCSP as a board-compatible substitute for another 64-pin package. The ball map, exposed functions, and mechanical land pattern must match exactly. Before approving an alternative, compile the existing firmware, verify the startup and clock configuration, exercise USB and CAN, validate timer and ADC behavior, and review flash wait states. A GD32F103 substitution may require timing adjustments if its maximum clock exceeds that of the STM32F103 configuration.
Apply the manufacturer-recommended supply voltage and decoupling arrangement for every power ball. Place bulk and high-frequency bypass capacitors where they can service the device without long current loops through the package. Validate startup current, output-voltage tolerance, transient response, and brownout behavior across the complete system load range. External transceiver and sensor loads should be budgeted separately because they can dominate the supply design.
Informations de conformité
Compliance status was not stated in the identified component records. The AEC-Q100 field remains unknown because automotive qualification is not established for this ordering code.
