STM32F103CBT7 - 72MHz Cortex-M3 128KB MCU | STMicroelectronics
Référence : STM32F103CBT7 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.7962 | $3,80 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
STM32F103CBT7 Présentation
A microcontroller is a semiconductor that integrates a processor core, memory, and peripherals into one programmable device. The STM32F1 family belongs to the ARM Cortex-M embedded ecosystem, where the MCU executes firmware from flash and uses peripherals to interface with sensors, communication networks, motors, displays, and control systems. STM32F103CBT7 is specifically associated with the medium-density performance line and is suitable for designs where a Cortex-M3 core and compact 48-pin implementation are required.
The key verified characteristics are a 32-bit Cortex-M3 processor, 72MHz maximum operating frequency, 128KB flash, and a 48-LQFP 7x7mm package. These values make the device appropriate for industrial controllers, communication modules, motor-control peripherals, instrument interfaces, and embedded automation products. The LQFP package also provides a practical surface-mount format for prototypes and medium-density production assemblies.
The STM32F103CBT7 is a programmable embedded platform rather than a fixed-function controller. Firmware determines the behavior of its GPIO, timers, serial interfaces, analog functions, and interrupt-driven control loops. Designers should therefore validate the complete peripheral configuration, clock plan, memory usage, and board-level power requirements against the applicable STMicroelectronics documentation before production release.
Typical applications include connected industrial sensors, compact motor-control boards, USB or UART communication modules, data acquisition equipment, and embedded controller platforms. The 72MHz Cortex-M3 core provides processing headroom for control tasks, while 128KB flash provides room for application code and bootloader logic. The 48-LQFP package remains useful where a moderate pin count and easy visual inspection are preferred over a very small package.
When designing around STM32F103CBT7, preserve the required decoupling and oscillator layout recommended by the manufacturer documentation, and confirm the exact peripheral pin mapping for the selected board. Do not assume that a competitor with a similar package name is electrically or firmware compatible without checking pin functions, voltage limits, clock behavior, and peripheral differences. This page combines verified distributor data with clearly marked data gaps rather than estimating missing electrical details.
This product reference is intended to help engineers identify the correct MCU, compare possible replacements, and plan an embedded design. The most important engineering checks are package compatibility, firmware portability, peripheral coverage, clock configuration, and supply availability.
Alternatives de remplacement direct pour STM32F103CBT7 — 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 STM32F103CBT7 (même facteur de forme et même empreinte) — différant par Core, Package, Series.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
GD32F103C8T6
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
AT32F403ARGT7
✅ Remplacement direct✓ En stock
$0.9 / unité
Voir la fiche technique →WCH32F103C8T6
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
STM32F103CBT7 Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M3 |
| Architecture | 32-bit |
| Maximum Frequency | 72 MHz |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 |
| Series | STM32F1 |
| Product Line | Medium-density performance line |
| Boîtier | 48-LQFP 7x7 mm |
| Type de montage | Surface Mount |
Guide de configuration des broches du STM32F103CBT7 48-lqfp 7x7 mm
Configuration des broches du STM32F103CBT7 (boîtier 48-lqfp 7x7 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 STM32F103CBT7.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
STM32F103CBT7 convient pour 6 applications: Industrial Sensor Controller, Compact Motor-Control Module, Serial Communication Module, Data-Acquisition Controller, Embedded Automation Controller, Instrument and Test Controller.
Industrial Sensor Controller
STM32F103CBT7 fits compact industrial sensor nodes that need a 32-bit Cortex-M3 core for acquisition, condition checking, local control, and communication. Its verified 72MHz operating speed provides a practical processing platform for interrupt-driven sensor loops, while 128KB flash leaves room for application code and a small bootloader. The 48-LQFP 7x7mm package is also convenient for boards that need a moderate pin count and straightforward assembly. Before finalizing the design, verify the exact ADC, timer, UART, and supply specifications required by the sensor node.
Recommandé
Compact Motor-Control Module
STM32F103CBT7 is suitable for small motor-control and actuator-control modules where a real-time Cortex-M3 execution engine is needed alongside programmable timers and digital I/O. The verified 72MHz core frequency supports fast control-loop computation, and the 128KB flash capacity accommodates application logic, parameter storage, and firmware updates. The 48-LQFP package provides a manageable footprint for a separate controller board. Motor designs must still verify timer channels, PWM behavior, protection inputs, current sensing, thermal limits, and the exact peripheral resources of the chosen STM32F103 variant.
Recommandé
Serial Communication Module
STM32F103CBT7 can be used in compact serial gateways and protocol-conversion modules that combine firmware processing with UART, SPI, or other communication functions. Its 32-bit Cortex-M3 architecture and verified 72MHz maximum frequency are useful for framing, buffering, filtering, and protocol state machines. The 128KB flash capacity is suitable for a moderate firmware image without relying on external program memory. Because the supplied snippets do not enumerate the exact peripheral configuration or electrical thresholds, verify UART levels, pin multiplexing, ESD protection, and interface timing in the manufacturer documentation.
Recommandé
Data-Acquisition Controller
STM32F103CBT7 is a reasonable platform for compact data-acquisition controllers that sample sensors, perform digital filtering, maintain records, and forward results through a serial link. The verified 72MHz Cortex-M3 core provides processing capacity for control and communication tasks, while 128KB flash supports firmware, lookup tables, and protocol code. The 48-LQFP 7x7mm package is useful when a design needs accessible leads and a moderate number of connections. Confirm the ADC resolution, sample-rate requirements, analog input range, timer availability, and memory requirements because those values are not present in the supplied verified data.
Recommandé
Embedded Automation Controller
STM32F103CBT7 can serve as the central controller in a compact automation or equipment-control module, coordinating digital inputs, outputs, timing functions, and external communications. Its confirmed 32-bit Cortex-M3 core, 72MHz operation, and 128KB flash provide a capable platform for deterministic embedded logic without moving to a larger processor. The 48-LQFP package supports a conventional surface-mount layout and provides enough external access for typical controller boards. Validate the exact I/O count, pin multiplexing, watchdog behavior, supply voltage, and environmental requirements against the manufacturer datasheet.
Recommandé
Instrument and Test Controller
STM32F103CBT7 is suitable for compact instrument and test controllers that need local sequencing, measurement handling, status reporting, and control-panel interfaces. The 72MHz Cortex-M3 processor can execute control code while the 128KB flash stores firmware and calibration-related application logic. Its 48-LQFP 7x7mm package makes it practical for a small controller PCB with external connectors, status LEDs, and interface components. For instrumentation applications, verify ADC performance, analog reference requirements, timer accuracy, communication interfaces, and low-noise layout guidance in the exact STM32F103CBT7 documentation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32F103CBT7 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | GD32F103C8T6 | AT32F403A | WCH32F103C8T6 |
|---|---|---|---|---|
| Package | 48-LQFP 7x7 mm | 48-LQFP 7x7 mm candidate; verify exact variant | 48-LQFP 7x7 mm candidate; verify exact variant | 48-LQFP 7x7 mm candidate; verify exact variant |
| Series / Family | STM32F1 | GD32F103 family candidate | AT32 family candidate | WCH32F103 family candidate |
Principaux différenciateurs
- Confirmed STM32F1 identity (vs GD32F103C8T6)
- Confirmed 128KB flash organization (vs AT32F403A)
- Known package identity (vs WCH32F103C8T6)
Notes de conception
Confirm the exact STM32F103CBT7 supply-voltage range, regulator tolerances, decoupling values, and power-supply sequencing requirements from the manufacturer datasheet before layout. The supplied verified data does not include voltage limits or current consumption, so do not select a regulator by extrapolating from another STM32F1 variant. Place required bulk and bypass capacitors close to the supply and ground pins according to the reference layout.
Use the exact STM32F103CBT7 pinout and package drawing as the source of truth for the PCB footprint. The verified package is 48-LQFP 7x7mm, but the supplied data does not include the complete pin table or pin-1 orientation. Check the manufacturer land pattern, pin numbering, exposed thermal considerations, and assembly tolerances rather than relying on a generic 48-LQFP footprint.
Do not treat a similar STM32F103 or GD32F103-family part as automatically interchangeable. Verify flash and RAM size, maximum clock, pin multiplexing, peripheral mapping, interrupt behavior, clock configuration, startup code, and toolchain support. The supplied cross-reference material identifies compatibility only at a family or candidate level, so a production substitution requires schematic review, firmware regression testing, and hardware validation.
Informations de conformité
Compliance fields were not present in the supplied verified data and must be confirmed from the manufacturer or authorized distributor documentation.
