STM32F103R4H6A - 72MHz ARM Cortex-M3 MCU | STMicroelectronics
Référence : STM32F103R4H6A ✓ ActifSTM32F103R4H6A Présentation
A microcontroller is an integrated circuit that combines a processor core, memory, peripherals, and I/O in one device. The ARM Cortex-M3 core provides deterministic embedded processing, while the STM32F103 family adds timers, communication interfaces, analog converters, and GPIO resources. In the product hierarchy, this component is an MCU, a semiconductor, and a member of the STM32F1 low-density performance line.
Key features include a maximum CPU frequency of 72 MHz, 16 KB of Flash, and 37 I/O ports. The verified product listing also identifies USB, CAN, six timers, two ADCs, and six communication interfaces within the applicable STM32F103 low-density family. These resources support USB-connected peripherals, CAN-based industrial or automotive communication, periodic control functions, and analog sensor acquisition. A separate source identifies a 2 V to 3.6 V supply range and RoHS-compliant construction, although exact operating-temperature and electrical-limit details were not included in the supplied data.
The Cortex-M3 architecture supports 32-bit instruction execution and efficient embedded control without an external memory interface being required for the stated 16 KB configuration. Its peripherals reduce the need for discrete interface components in designs that combine data acquisition, communications, and control functions. Package density also makes the 5 x 5 mm TFBGA useful for compact modules and densely populated industrial controllers, although it requires careful PCB layout and inspection because its leads are hidden beneath the package.
Typical uses include USB data acquisition equipment, CAN-connected industrial controls, motor-control subsystems, communication adapters, and compact embedded-control modules. The STM32F103R4H6A is especially appropriate when a design needs several peripherals but only 16 KB of application Flash. Developers should confirm that code size, firmware requirements, peripheral configuration, and production availability remain within the device's limits before final release.
A primary design consideration is BGA assembly. Its pads require via-in-pad or fanout-capable PCB construction, adequate solder-paste control, X-ray inspection, and careful power-and-ground plane design. Decoupling should be placed directly at the appropriate supply pins, while signal routing must preserve USB, CAN, clock, and analog-input signal integrity. Confirming the exact pinout against the manufacturer datasheet is mandatory because the supplied sources do not provide the complete numbered 64-pin assignment.
This page consolidates verified distributor and manufacturer information, strict same-package replacement candidates, application guidance, and practical PCB considerations. It distinguishes confirmed parameters from values that still require datasheet confirmation so engineers can make sourcing and design decisions without unsupported assumptions.
Alternatives de remplacement direct pour STM32F103R4H6A — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32F103R4H6A (même facteur de forme et même empreinte) — différant par Flash Memory, Package, Timer Count.
STM32F103R4H6B
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32F103R4H6C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32F103R6H6A
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →STM32F103R8H6A
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32F103R6H6B
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32F103R4H6A Valeurs maximales et caractéristiques électriques
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | STM32F1 low-density performance line |
| Processor Core | ARM Cortex-M3 32-bit RISC core |
| Maximum CPU Frequency | 72 MHz |
| Performance | 1.25 DMIPS/MHz at 72 MHz |
| Flash Memory | 16 KB |
| Supply Voltage Range | 2.0 V to 3.6 V |
| I/O Port Count | 37 |
| ADC Count | 2 |
| Timer Count | 6 |
| Communication Interface Count | 6 |
| USB Interface | Yes |
| CAN Interface | Yes |
| Boîtier | 64-pin TFBGA, 5 x 5 mm |
| Type de montage | Surface mount |
| Statut RoHS | Compliant |
| Statut du cycle de vie | Active |
Guide de configuration des broches du STM32F103R4H6A 64-pin tfbga, 5 x 5 mm
Configuration des broches du STM32F103R4H6A (boîtier 64-pin tfbga, 5 x 5 mm). 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 STM32F103R4H6A.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM32F103R4H6A convient pour 6 applications: USB Data-Acquisition Controller, CAN-Connected Industrial Control, Compact Motor-Control Subsystem, Embedded Communication Adapter, Battery-Powered Sensor Node, Instrumentation and Measurement Module.
USB Data-Acquisition Controller
The STM32F103R4H6A fits compact USB data-acquisition controllers because its Cortex-M3 core runs at up to 72 MHz while the device provides USB, two ADCs, six timers, and 37 I/O ports. A typical design uses the USB interface for a command and data path to a host computer, while the ADCs acquire analog sensor signals and timers establish sampling intervals. The 16 KB Flash limit must be reserved for the bootloader, USB stack, control firmware, and acquisition code. The 64-pin 5 x 5 mm TFBGA also requires a manufacturing process capable of inspecting hidden joints. Confirm the exact ADC pin map, USB routing requirements, decoupling, and firmware footprint against the manufacturer datasheet before layout release.
Recommandé
CAN-Connected Industrial Control
The STM32F103R4H6A is suitable for compact CAN-connected industrial-control modules because the STM32F103 family provides CAN, multiple timers, 37 I/O ports, and a 72 MHz Cortex-M3 core. The MCU can execute supervisory logic, monitor discrete inputs, drive outputs, and exchange diagnostic or process data over a CAN network. Its 2 V to 3.6 V operating range suits 3.3 V industrial electronics, although transient protection and isolated-interface requirements depend on the installation. Keep the CAN and clock paths away from switching nodes, provide local supply decoupling, and verify termination externally. The compact TFBGA helps reduce board area, but production-quality assembly and inspection are essential.
Recommandé
Compact Motor-Control Subsystem
The STM32F103R4H6A can serve as the controller in a compact brushless-DC motor-control subsystem, combining a 72 MHz Cortex-M3 core with six timers, two ADCs, and 37 I/O ports. Timers can generate precise PWM and complementary timing signals, while ADC channels can sample rotor position or current feedback. The MCU handles commutation logic and communicates operating data through available serial or CAN interfaces. Because 16 KB of Flash limits application complexity, control code should be compact and validated for timing margin. External gate drivers, current sensing, protection, and power-stage components remain necessary. Confirm timer-channel mapping, ADC input impedance requirements, and pin multiplexing in the official datasheet.
Recommandé
Embedded Communication Adapter
The STM32F103R4H6A fits a compact embedded communication adapter that translates between USB, CAN, and other serial interfaces. Its 72 MHz Cortex-M3 core can manage protocol conversion and buffering, while USB, CAN, six timers, two ADCs, and six communication interfaces provide a broad peripheral base. A gateway might accept USB commands from a service computer and distribute configuration to CAN-connected equipment. The 16 KB Flash capacity favors compact protocol stacks and should be checked against the selected USB and CAN libraries. Place the MCU and transceiver on a controlled low-latency signal layer, isolate connector-related surge paths, and verify bus levels before connecting field equipment.
Recommandé
Battery-Powered Sensor Node
The STM32F103R4H6A can support a compact battery-powered sensor node when its active-processing capabilities are used selectively. The 72 MHz Cortex-M3 core supports protocol handling and local processing, while sleep-mode and wakeup behavior can reduce average consumption when sensors are sampled periodically. The 2 V to 3.6 V supply range is compatible with regulated 3.3 V systems, although regulator efficiency, quiescent current, and sleep current were not supplied and must be taken from the datasheet. ADC-capable inputs suit sensor conditioning, and serial links can carry data to a gateway. Optimize firmware for wake latency and include brownout behavior in the power-budget design.
Recommandé
Instrumentation and Measurement Module
The STM32F103R4H6A is appropriate for compact instrumentation modules that combine control, timing, data acquisition, and communications. Two ADCs can collect analog measurements, six timers can control sampling or stimulus timing, and USB or CAN can transfer results to an instrument controller or service interface. The 72 MHz Cortex-M3 core leaves useful processing headroom for calibration, filtering, and data packaging, although the 16 KB Flash limit requires disciplined code organization. Analog inputs and digital communication lines should be separated from switching supplies and high-current outputs. Verify ADC accuracy requirements, reference strategy, input multiplexing, calibration storage, and grounding against the manufacturer documentation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32F103R4H6A — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32F103R4H6B | STM32F103R4H6C | STM32F103R6H6A | STM32F103R8H6A | STM32F103R6H6B |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 64-pin TFBGA, 5 x 5 mm | 64-pin TFBGA, 5 x 5 mm - same | 64-pin TFBGA, 5 x 5 mm - same | 64-pin TFBGA, 5 x 5 mm - same | 64-pin TFBGA, 5 x 5 mm - same | 64-pin TFBGA, 5 x 5 mm - same |
| Processor Core | ARM Cortex-M3, 32-bit RISC | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum CPU Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 64 KB | 32 KB |
Principaux différenciateurs
- Original-manufacturer STM32F103 compatibility (vs GD32F103)
- Compact 64-pin 5 x 5 mm package (vs STM32F103R8H6A)
- USB, CAN, timer, and ADC integration (vs STM32F103R4H6B)
Notes de conception
The 64-pin 5 x 5 mm TFBGA requires a PCB process designed for fine-pitch, hidden-joint assembly. Use a manufacturer-qualified footprint from the ST land-pattern guidance, account for the package terminal definition, and provide via-in-pad or another qualified escape-routing method where needed. Confirm solder-mask and paste-mask design rules with the assembler. A copied footprint from a different 64-pad BGA can create opens or shorts despite matching the nominal body size.
Place the required supply and bypass capacitors directly beside the device's supply and ground pads, following the manufacturer layout and capacitance guidance. The verified 2 V to 3.6 V operating range does not establish which voltage combinations are valid for every peripheral or clock configuration. Keep the 3.3 V distribution plane continuous, control return-current paths beneath digital interfaces, and avoid placing noisy regulator or switching-node copper beneath sensitive analog inputs.
Route USB, CAN, oscillator, and high-speed switching signals with short returns and continuous reference planes. Keep crystal or external oscillator traces away from USB and power-converter outputs, and follow the manufacturer guidance for series damping where edge rates are high. CAN transceivers, connectors, and protection components add board-level discontinuities, so validate interface eye quality or bit-error margin in the assembled product rather than relying only on schematic review.
Do not substitute a higher-memory STM32F103 part solely because its family name and package look similar. The STM32F103R4H6A provides only 16 KB of Flash, so the bootloader, USB or CAN stack, application logic, and update data must fit. Higher-memory alternatives can solve code-size pressure but require validation of startup code, linker settings, pin multiplexing, exposed-pad connections, and temperature-grade requirements before production substitution.
Informations de conformité
The verified DigiKey-derived specification identifies the STM32F103R4H6A as RoHS compliant and active. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations were supplied.
