STM32F103R6T7A - 72MHz Cortex-M3 32KB MCU | STMicroelectronics
MPN： STM32F103R6T7A ✓ 啟用中STM32F103R6T7A 概覽
A microcontroller is a programmable semiconductor that integrates a processor core, nonvolatile program memory, volatile data memory, peripherals, and I/O on one device. The STM32F103 belongs to the STM32F1 performance-line family of 32-bit microcontrollers. Its ARM Cortex-M3 core combines a 32-bit instruction set with deterministic real-time control, while Flash retains programmed firmware without power and SRAM supports working data and stack operations.
Key features include up to 72 MHz operation, single-cycle multiplication, USB and CAN connectivity, two ADCs, multiple communication interfaces, and a collection of timers. The verified device data identifies an operating performance of 90 DMIPS and 1.25 DMIPS/MHz. Its 32 KB Flash capacity is appropriate for compact control firmware, while the 10 KB SRAM allows modest buffering without requiring an external memory device.
The STM32F103R6T7A integrates its timer, serial-communication, analog-conversion, and digital I/O resources around the Cortex-M3 core. This integration reduces board complexity in applications that need both real-time control and communications. USB and CAN provide useful paths for configuration, data exchange, and industrial networking, while the ADCs support analog sensor acquisition without separate converters.
Typical uses include USB-connected control accessories, CAN-based industrial nodes, motor-control subsystems, sensor-acquisition equipment, compact automation controllers, and communication bridges. The 64-LQFP package is easier to inspect and rework than very fine-pitch packages, making it practical for prototypes, industrial controls, and moderately populated mixed-signal boards.
Designers should verify the complete pin multiplexing, clock plan, decoupling requirements, and firmware support for every peripheral used. The 2.0 V to 3.6 V supply range also requires attention to input tolerance, output-driver loading, and the voltage levels of attached USB, CAN, and sensor interfaces.
This product page consolidates verified distributor specifications, lifecycle information, package details, drop-in alternatives, comparison parameters, and practical design guidance. It also distinguishes verified facts from details that require confirmation in the manufacturer datasheet before production release.
直接替換替代品，適用於 STM32F103R6T7A — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
STM32F103R6T6A
✅ 直接替換聯絡詢價
查看資料表 →STM32F103R6T7
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F103R6T6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F103R6T7A 最大額定值與電氣特性
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Maximum CPU Frequency | 72 MHz |
| Flash Memory | 32 KB |
| SRAM | 10 KB |
| Supply Voltage Range | 2.0 V to 3.6 V |
| CPU Performance | 90 DMIPS; 1.25 DMIPS/MHz |
| I/O Ports | 37 ports |
| 封裝 | 64-LQFP, 10 x 10 mm |
| 安裝類型 | Surface mount |
| Architecture | ARM 32-bit Cortex-M3 |
| Multiplier | Single-cycle multiplier |
| Connectivity | USB and CAN |
| ADC Count | 2 ADCs |
| Communication Interfaces | 6 communication interfaces |
| Timer Count | 6 timers |
| RoHS 狀態 | Compliant |
| Lifecycle Stage | Active |
STM32F103R6T7A 64-lqfp, 10 x 10 mm 腳位配置指南
STM32F103R6T7A（64-lqfp, 10 x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM32F103R6T7A.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM32F103R6T7A 適用於 6 應用s: USB Configuration and Control Accessory, CAN-Based Industrial Control Node, Compact Sensor Acquisition System, Low-Voltage Embedded Motor Controller, Communication Protocol Bridge, Automated Test and Measurement Module.
USB Configuration and Control Accessory
The STM32F103R6T7A fits a USB-connected control accessory because it combines a 72 MHz ARM Cortex-M3 core with verified USB connectivity in a 64-LQFP package. The MCU can manage enumeration, device control, status reporting, and configuration logic without a separate USB controller. Its 32 KB Flash suits compact firmware, while the 10 KB SRAM supports protocol buffers and application state. Designers should account for the finite memory budget and provide USB transceiver, protection, and signal-routing components in the reference design.
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CAN-Based Industrial Control Node
The STM32F103R6T7A is suitable for a CAN-based industrial node because the verified STM32F1 performance-line features include CAN, a 72 MHz Cortex-M3 core, two ADCs, and six timers. A designer can use CAN for peer communication, timers for periodic control tasks, and the ADCs for analog feedback within one controller. The 64-LQFP footprint remains inspectable on moderate-density industrial boards. The design must still include a suitable CAN transceiver, bus protection, termination strategy, and firmware-level bus fault handling.
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Compact Sensor Acquisition System
The STM32F103R6T7A can serve as the central controller in a compact sensor-acquisition system because it provides two ADCs, 37 I/O ports, and a 72 MHz Cortex-M3 core in a 64-LQFP package. Multiple digital sensors can share the I/O resources, while the ADCs monitor pressure, temperature, or position signals. Its 10 KB SRAM is adequate for modest sampling buffers but not large offline datasets, so streaming designs should avoid unnecessary copies. Input conditioning, grounding, and analog reference design remain critical to acquisition accuracy.
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Low-Voltage Embedded Motor Controller
The STM32F103R6T7A is appropriate for a low-voltage embedded motor-control subsystem because its 72 MHz ARM Cortex-M3 core provides deterministic control processing and the verified feature set includes six timers and two ADCs. Timers can generate motor-control timing, while ADC channels can monitor current or position feedback. The 2.0 V to 3.6 V operating range supports compact battery-derived systems when an appropriate regulator is used. Gate-driver selection, low-side current sensing, thermal margin, and firmware-safe output states must be designed separately.
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Communication Protocol Bridge
The STM32F103R6T7A can implement a communication bridge between USB, CAN, and serial interfaces because the verified MCU combines USB and CAN connectivity with multiple communication interfaces and a 72 MHz processor core. Firmware can translate packets, maintain device state, and perform basic diagnostics on one compact controller. The 32 KB Flash and 10 KB SRAM require disciplined buffer sizing, especially when bridging several simultaneous ports. Protocol timing, isolation, termination, and electrical-level compatibility must be validated for every attached interface.
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Automated Test and Measurement Module
The STM32F103R6T7A is suitable for a compact automated test or measurement module because it integrates control logic, two ADCs, USB or CAN connectivity, timers, and 37 I/O ports in one 64-LQFP device. A test head can sequence fixtures, capture analog readings, report results, and receive commands through a communications interface. The 72 MHz core supports responsive peripheral coordination, while the 10 KB SRAM is best used for short acquisition windows. Analog front-end design, calibration data, reference stability, and test-point accessibility require separate attention.
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推薦產品摘要
工程參考資料，適用於 STM32F103R6T7A — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32F103R6T6A | STM32F103R6T7 | STM32F103R6T6 |
|---|---|---|---|---|
| Package | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) | 64-LQFP (10x10) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum Frequency | 72 MHz | 72 MHz | 72 MHz | 72 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB |
| SRAM | 10 KB | 10 KB | 10 KB | 10 KB |
| Supply Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Connectivity | USB and CAN | USB and CAN | USB and CAN | USB and CAN |
| ADC Count | 2 ADCs | 2 ADCs | 2 ADCs | 2 ADCs |
| I/O Ports | 37 ports | 37 ports | 37 ports | 37 ports |
主要差異化特點
- Combines communication and control resources in a 64-LQFP device (對比STM32F103R6T6A)
- Uses an inspectable 64-LQFP footprint with established STM32F1 tooling (對比STM32F103R6T7)
- Provides dedicated USB and CAN integration without external protocol hardware (對比STM32F103R6T6)
設計說明
Design the supply rail for the verified 2.0 V to 3.6 V operating range and account for startup, transient, and peripheral-load demands at the 72 MHz maximum clock. Place the manufacturer-recommended bulk and high-frequency decoupling capacitors at the supply and ground pins, keeping each return path short. The supplied excerpts do not specify capacitor values or ESR requirements, so those values must be obtained from the manufacturer datasheet rather than inferred from generic STM32 designs.
The 64-LQFP 10 x 10 mm package is compact but still requires careful fanout and soldering-plan preparation. Follow the manufacturer land pattern, confirm pin-1 orientation, and provide thermal copper where appropriate. Keep sensitive analog inputs away from USB, CAN, switching nodes, and high-current return paths. Because the verified excerpts did not include the complete alternate-function table or recommended PCB pattern, validate both against the exact R6-grade datasheet before release.
Do not assume that any Cortex-M3 device is firmware- or pin-compatible merely because it uses a similar package. The STM32F103R6T7A has constrained 32 KB Flash and 10 KB SRAM, so USB, CAN, diagnostics, and protocol stacks must be checked against memory use. For proposed substitutes, verify startup behavior, clock configuration, USB and CAN peripheral details, ADC characteristics, interrupt mapping, bootloader assumptions, and the exact 64-LQFP pinout before changing the BOM.
Route USB and CAN as controlled-impedance interfaces with short return paths and continuous reference planes. USB requires attention to trace geometry, series impedance, ESD protection, connector placement, and crystal-loop layout, while CAN requires correct termination placement, common-mode protection, and a suitable transceiver. The supplied data confirms interface availability but does not provide layout dimensions or transceiver requirements; use the manufacturer application guidance for the implemented topology.
合規資訊
RoHS compliance is explicitly included in the verified search data. Reach, AEC-Q100, lead-free, halogen-free, and conflict-minerals information was not supplied and is therefore unknown rather than assumed.