STM32F103R4H6A - 72MHz ARM Cortex-M3 MCU | STMicroelectronics
MPN： STM32F103R4H6A ✓ 啟用中STM32F103R4H6A 概覽
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.
直接替換替代品，適用於 STM32F103R4H6A — 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。
此系列的變體
與下列產品可直接替換的同系列型號： STM32F103R4H6A （相同外形與佔位） — 差異在於 Flash Memory, Package, Timer Count.
STM32F103R4H6B
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F103R4H6C
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F103R6H6A
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F103R8H6A
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F103R6H6B
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
STM32F103R4H6A 最大額定值與電氣特性
| 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 |
| 封裝 | 64-pin TFBGA, 5 x 5 mm |
| 安裝類型 | Surface mount |
| RoHS 狀態 | Compliant |
| 生命週期狀態 | Active |
STM32F103R4H6A 64-pin tfbga, 5 x 5 mm 腳位配置指南
STM32F103R4H6A（64-pin tfbga, 5 x 5 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： STM32F103R4H6A.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM32F103R4H6A 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 STM32F103R4H6A — 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 | 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 |
主要差異化特點
- Original-manufacturer STM32F103 compatibility (對比GD32F103)
- Compact 64-pin 5 x 5 mm package (對比STM32F103R8H6A)
- USB, CAN, timer, and ADC integration (對比STM32F103R4H6B)
設計說明
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.
合規資訊
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.
