STM32F103R6T6 - 72MHz Cortex-M3 MCU | STMicroelectronics
N.º de pieza: STM32F103R6T6 ✓ ActivoSTM32F103R6T6 Descripción general
A microcontroller is a programmable semiconductor that integrates a processor core, memory, peripherals, and interface circuitry on one IC. The STM32F103 is an ARM Cortex-M3 real-time microcontroller within the STM32 embedded product family. It is designed for control-oriented systems requiring deterministic peripheral access, modest onboard memory, and communication interfaces without a separate processor, memory, and interface devices.
Key features include 72 MHz Cortex-M3 execution, 32 KB (32K x 8) Flash, 6 KB of SRAM, a 12-bit ADC, USB, CAN, seven 16-bit timers, and communication peripherals. The 37 I/O ports provide interfaces for sensors, actuators, communications, and human-machine input. Its 2 V to 3.6 V operating range suits conventional 3.3 V embedded equipment.
Technically, the STM32F103R6T6 uses a 32-bit ARM Cortex-M3 RISC core and belongs to STMicroelectronics' low-density performance line. The part combines control processing and multiple communication peripherals in one device, reducing board area and component count. Its 32 KB Flash provides room for boot code, application firmware, and configuration data, while 6 KB of SRAM supports working state, buffers, and peripheral data handling.
Typical applications include USB-connected data acquisition, CAN-based industrial or vehicle modules, motor and motion control, instrument panels, building automation controllers, and compact embedded control boards. The combination of USB, CAN, ADC channels, timers, and GPIO supports designs that gather analog measurements and communicate with a host or distributed controller network.
Designers should verify clock configuration, pin multiplexing, USB and CAN transceiver requirements, and peripheral assignments against the STM32F103x4 and STM32F103x6 datasheet. The MCU does not include off-chip USB or CAN transceivers, so those interfaces still require suitable external circuitry. PCB design must also account for the 48-pin land pattern, 0.5 mm pitch, power decoupling, and exposed thermal requirements stated by the manufacturer.
This page consolidates distributor specifications, manufacturer documentation, compatible-source options, comparison data, and practical integration guidance. It distinguishes documented drop-in candidates from merely similar devices, helping engineers evaluate the STM32F103R6T6 without relying on an incomplete distributor specification summary.
Alternativas directas para STM32F103R6T6 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con STM32F103R6T6 (mismo factor de forma y huella) — difiere en Package, Communication Interfaces, Product Type, Architecture, Flash Memory.
STM32F103R6T6A
✅ Sustitución directaConsulte el precio
Ver hoja de datos →STM32F103R6T6ATR
✅ Sustitución directaConsulte el precio
Ver hoja de datos →GD32F103R6T6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
STM32F103R6T6 Valores máximos y características eléctricas
| Product Type | 32-bit ARM Cortex-M3 RISC microcontroller |
| Maximum CPU Frequency | 72 MHz |
| Flash Memory | 32 KB (32K x 8) |
| SRAM | 6 KB |
| ADC | 1 x 12-bit ADC |
| ADC Count in Family Description | 2 ADCs |
| Timers | 7 x 16-bit timers |
| Timer Count in Family Description | 6 timers |
| Communication Interfaces | USB and CAN |
| I/O Ports | 37 ports |
| Supply Voltage Range | 2 V to 3.6 V |
| Encapsulado | VFQFPN-48, 7 mm x 7 mm, 0.5 mm pitch |
| Tipo de montaje | Surface mount |
| Architecture | ARM 32-bit Cortex-M3 RISC |
| Estado del ciclo de vida | Active |
| Estado RoHS | RoHS compliant |
| ADC Resolution | 12-bit |
Guía de configuración de pines de STM32F103R6T6 vfqfpn-48, 7 mm x 7 mm, 0.5 mm pitch
Configuración de pines para STM32F103R6T6 (encapsulado vfqfpn-48, 7 mm x 7 mm, 0.5 mm pitch). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para STM32F103R6T6.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
STM32F103R6T6 es adecuado para 6 aplicacións: USB Data Acquisition Controller, CAN-Based Industrial Control Module, Motor and Motion Control, Building Automation Controller, Instrument Panel and HMI, Battery-Powered Sensor Node.
USB Data Acquisition Controller
The STM32F103R6T6 fits compact USB data-acquisition equipment because it combines a 72 MHz Cortex-M3 core with 32 KB Flash, 6 KB RAM, USB support, two ADC resources in the family description, and 37 I/O ports. Firmware can sample analog inputs, perform control calculations, and transmit data over USB without a separate protocol processor. The 2 V to 3.6 V operating range fits a regulated 3.3 V rail. Because the MCU does not integrate a USB transceiver, the board still needs USB routing, termination, ESD protection, connector protection, and validated enumeration firmware. Engineering evaluation should confirm the exact ADC channels, trigger behavior, DMA requirements, and USB implementation against the STM32F103x4 and STM32F103x6 datasheet.
Recomendado
CAN-Based Industrial Control Module
The STM32F103R6T6 is appropriate for distributed industrial controls requiring CAN, deterministic timers, GPIO, and local signal processing. Its 72 MHz Cortex-M3 core can execute supervisory logic while the 32 KB Flash stores firmware and 6 KB of RAM supports protocol buffers. The 37 I/O ports allow digital inputs, outputs, status indicators, and configuration signals to share the controller. A practical implementation places the MCU beside an external CAN transceiver, protection network, and regulated 3.3 V supply inside the documented 2 V to 3.6 V range. Firmware should handle bus arbitration, fault counters, timeouts, and safe outputs. Because the supplied summaries do not enumerate every peripheral instance or transceiver requirement, final channel allocation and timing must be checked against the manufacturer documentation.
Recomendado
Motor and Motion Control
The STM32F103R6T6 can serve as the real-time controller in compact motor-control and motion-control modules where a 72 MHz Cortex-M3 core, multiple 16-bit timers, ADC resources, and 37 I/O ports are valuable. Timer outputs can generate motor-control waveforms, while ADC inputs support rotor or position feedback and GPIO can handle limit switches, encoders, and gate-driver commands. The device's 32 KB Flash is appropriate for focused control firmware, although algorithm memory requirements must be measured. Power-stage design remains separate because the MCU is not a power driver. Designers should use suitable gate drivers, current sensing, protection, and decoupling, and should confirm timer channels, complementary outputs, ADC trigger timing, and pin remapping for the exact package in the manufacturer datasheet.
Recomendado
Building Automation Controller
The STM32F103R6T6 suits compact building-automation nodes that coordinate sensors, digital outputs, and serial communications from a single controller. Its 37 I/O ports provide practical capacity for digital room sensors, relay-control signals, status LEDs, and configuration inputs, while the 72 MHz processor leaves headroom for protocol handling and local logic. The 32 KB Flash and 6 KB SRAM fit focused gateway firmware rather than a large operating system. A 3.3 V regulated supply within the 2 V to 3.6 V device range simplifies integration, but isolated transceivers and appropriately rated relay drivers are needed for field wiring. Firmware must include debounce, fault-state behavior, watchdog handling, and communication timeouts. The exact low-voltage I/O limits, pin alternates, and timing margins require verification in the official electrical and pin-definition sections.
Recomendado
Instrument Panel and HMI
The STM32F103R6T6 is suitable for compact instrument panels and human-machine interfaces because it offers a 72 MHz control core, 37 GPIO, ADC capability, and communication options in a small VFQFPN-48 package. The MCU can scan buttons, read analog controls, update indicators, apply local filtering, and forward status data through USB or CAN. Its 32 KB Flash supports a focused interface firmware image, while 6 KB RAM can hold display and communication buffers. The integrated MCU does not directly drive a graphical LCD, so the selected display interface, segment driver, or LED driver remains an external component. Design work should include debouncing and electrical protection for user inputs, debounce filtering, display timing checks, and separation between noisy motor or relay paths and sensitive analog measurement circuits.
Recomendado
Battery-Powered Sensor Node
The STM32F103R6T6 can form the control core of a compact, battery-powered sensor node when the design prioritizes a rich peripheral set and 32 KB of embedded Flash rather than minimum active power. The Cortex-M3 core handles sensor polling, local filtering, data packaging, and communication, while seven 16-bit timers support periodic sampling and timing functions. GPIO can supervise enables, alerts, and low-power wake events, and the 2 V to 3.6 V range accommodates compatible low-voltage sensor rails and regulated 3.3 V power trees. Because the supplied data does not provide the MCU's detailed sleep-current figures, battery life cannot be estimated reliably from these summaries. Designers should measure active, sleep, and wake currents, use the validated low-power modes, and avoid assuming that a peripheral-rich MCU automatically provides a low-leakage node design.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para STM32F103R6T6 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | STM32F103R6T6A | STM32F103R6T6ATR | GD32F103R6T6 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum Frequency | 72 MHz | 72 MHz | 72 MHz | 108 MHz |
Diferenciadores clave
- Native STMicroelectronics ecosystem continuity (frente a GD32F103R6T6)
- Same-package orderable family alternatives (frente a STM32F103R6T6A)
- Documented USB and CAN integration (frente a GD32F103R6T6)
Notas de diseño
The verified operating range is 2 V to 3.6 V, so design the local supply for nominal 3.3 V operation while checking ripple and tolerance against the manufacturer electrical limits. Place the required input, output, and analog decoupling capacitors at the package power pins in accordance with the datasheet layout guidance. USB, CAN, and motor-control circuitry may introduce transients; isolate noisy power paths and validate supply behavior during bus faults and load changes.
The target uses a 48-pin, 0.5 mm-pitch VFQFPN land pattern, so component placement and paste stencil design require careful center- and corner-pad coordination. Follow the manufacturer footprint and reflow recommendations rather than substituting a generic QFN-48 land pattern. Preserve access to the exposed pad, maintain the recommended thermal-pad connection, and keep USB, CAN, clock, and debug routing away from sensitive analog inputs where practical.
Do not treat GD32F103R6T6 as an unconditional one-for-one substitution. The disclosed maximum frequency is 108 MHz rather than 72 MHz, which can alter Flash wait-state requirements, interrupt timing, and communication margins. Recompile with the appropriate device definition, compare startup and peripheral behavior, and regression-test the complete application. Also note that the STM32 MCU does not include an external USB or CAN transceiver.
Keep analog sensor traces short and isolate them from switching-node, relay, and USB routing. If ADC accuracy is important, use the manufacturer guidance for source impedance, sampling time, and the analog supply or reference arrangement. Add protection networks for external inputs, validate protection leakage and capacitance against signal bandwidth, and perform analog measurements with the final PCB layout, enclosure, and power-supply configuration.
Información de cumplimiento
The indexed specifications identify the device as RoHS compliant. No verified REACH, automotive qualification, lead-free, halogen-free, or conflict-minerals statement was supplied, so those fields remain unknown.
