STM32G431RBI6 - 170MHz 128KB Cortex-M4F MCU | ST
MPN: STM32G431RBI6 ✓ AktifSTM32G431RBI6 Ringkasan
A microcontroller is a programmable semiconductor that integrates a processor core, nonvolatile program memory, volatile data memory, peripherals, and communication interfaces on one integrated circuit. In the hierarchy of electronic components, the STM32G431RBI6 is an ARM Cortex-M4F microcontroller, a 32-bit embedded processor within the broader category of microcontrollers and semiconductors. Its floating-point unit supports efficient mathematical operations, while the math accelerator accelerates selected DSP-oriented calculations used in control and signal-processing workloads.
The STM32G431RBI6 runs at 170 MHz and delivers up to 213 DMIPS. It provides 128 KB of Flash, organized as 128K x 8, for firmware storage and 32 KB of SRAM for working data. STMicroelectronics describes the device as offering medium analog integration, making it appropriate for designs that combine digital control with analog measurement or output functions. The 64-UFBGA package limits board area while exposing the required interface and power connections through a dense surface-mount footprint.
The Cortex-M4F architecture combines a 32-bit ARM processor with single-precision floating-point support. This allows control algorithms, filtering, and signal calculations to execute without emulating every floating-point operation in software. The dedicated math accelerator further improves selected computational tasks, while 32 KB of SRAM supports working buffers and real-time control state. At 170 MHz, the processor provides a substantial performance increase over typical low-speed embedded-control devices while retaining the low-power operating characteristics expected of an Arm Cortex-M microcontroller.
Typical uses include industrial sensor controllers, motor-control systems, compact data-acquisition units, building automation equipment, battery-powered instruments, and communications-enabled embedded products. The STM32G431RBI6 is particularly suitable when a design needs more processing capacity and analog integration than a basic 8-bit controller without moving to a high-end application processor. Its 5 x 5 mm package also supports space-constrained board layouts when careful escape routing and assembly process controls are applied.
Designers should verify the complete pin configuration, supported voltage range, clock requirements, analog limits, and exposed-pad connection in the STMicroelectronics datasheet before layout release. Because a 64-UFBGA package has closely spaced pads, PCB trace widths, solder mask clearances, via strategy, and reflow-profile selection must be reviewed against the manufacturer’s board and package guidance. The exposed thermal and ground structure should be implemented according to the recommended land pattern rather than treated as an optional connection.
Alternatif penggantian untuk STM32G431RBI6 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
STM32G441RBI6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32G451RBI6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32G461RBI6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32G491RBI6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32G441RBI6
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
STM32G431RBI6 Rating Maksimal & Karakteristik Listrik
| Product Type | 32-bit ARM Cortex-M4F microcontroller |
| Manufacturer | STMicroelectronics |
| Frekuensi Bawah Maximum | 170 MHz |
| Core Architecture | ARM Cortex-M4F |
| Instruction Width | 32 bit |
| Peak Performance | 213 DMIPS |
| Flash Memory | 128 KB |
| Flash Organization | 128K x 8 |
| SRAM | 32 KB |
| Math Accelerator | Yes |
| Floating-Point Support | Single-precision FPU |
| Analog Integration | Medium analog integration |
| Paket | 64-UFBGA (5 x 5 mm) |
| Jumlah Pin | 64 pins |
| Tipe Mounting | Surface mount |
STM32G431RBI6 64-ufbga (5 x 5 mm) Diamant Konfigurasi Panduan
Konfigurasi pin untuk STM32G431RBI6 (64-ufbga (5 x 5 mm) pakai pakai). IC digital ini termasuk GPIO, antarmuka komunikasi (UART, SPI, I2C), dan pin kuasa. Lihat datasheet produsen untuk fungsi pin alternatif dan opsi konfigurasi. Penting untuk desain sistem pengemasan dan PCB.
Tidak ada data diatribut pin yang tersedia untuk STM32G431RBI6.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
STM32G431RBI6 cocok untuk 6 aplikasis: Industrial Sensor and Control Node, Compact Motor Control, Precision Data-Acquisition Module, Building Automation Controller, Battery-Powered Portable Instrument, Communications-Enabled Embedded Equipment.
Industrial Sensor and Control Node
The STM32G431RBI6 fits compact industrial sensor nodes that must acquire measurements, evaluate control logic, and communicate results over embedded interfaces. Its 170 MHz Cortex-M4F core and 213 DMIPS performance provide headroom for real-time filtering, while 32 KB of SRAM supports working buffers and the 128 KB Flash stores firmware and configuration data. Medium analog integration is useful when a board must combine sensor conditioning or measurement functions with digital control. The 64-UFBGA 5 x 5 mm package helps reduce board area, although the design must follow the manufacturer land pattern and account for thermal-pad routing, decoupling, and manufacturing tolerances.
Compact Motor Control
The STM32G431RBI6 is appropriate for compact motor-control systems requiring more computation than a basic 8-bit controller. The 170 MHz Arm Cortex-M4F core executes control calculations efficiently, while the integrated math accelerator supports selected signal-processing operations used in motor algorithms. Its 32 KB SRAM can hold control state and measurement buffers, and 128 KB Flash provides room for application firmware. Medium analog integration is beneficial when current, voltage, or position-related signals must be handled in the same design. Engineers must still verify the exact timer, ADC, comparator, and pin assignments against the STMicroelectronics datasheet and confirm that the selected power stage and feedback network meet the motor’s requirements.
Precision Data-Acquisition Module
The STM32G431RBI6 can serve as the processing core of a compact data-acquisition module that combines analog measurement with digital filtering and data preparation. Its 213 DMIPS capability allows the controller to process sampled values and execute control logic at 170 MHz, while single-precision floating-point support simplifies implementation of calibration and mathematical routines. The device provides 128 KB of Flash and 32 KB of SRAM for firmware and real-time data handling. The 5 x 5 mm 64-UFBGA package allows the acquisition electronics to be placed close to sensors and signal-conditioning components, shortening sensitive paths. Signal integrity, analog grounding, reference-voltage accuracy, and exposed-pad thermal design must be addressed in the PCB layout.
Building Automation Controller
The STM32G431RBI6 is suitable for distributed building-automation controllers that monitor sensors, execute local logic, and operate communications peripherals. A 170 MHz Cortex-M4F core gives the module enough performance for protocol handling, state-machine logic, and supervisory control, while the 32 KB SRAM can support network buffers and working variables. The 128 KB Flash capacity accommodates firmware plus persistent configuration when an appropriate nonvolatile data strategy is used. Its compact 64-UFBGA package allows placement in wall-control units, room controllers, and equipment-interface modules. Designers should define fail-safe states, watchdog behavior, brownout handling, and restart requirements before selecting the device for safety-relevant building functions.
Battery-Powered Portable Instrument
The STM32G431RBI6 can act as the central controller in a battery-powered portable measurement instrument. Its Cortex-M4F architecture performs filtering, calibration, and interface processing at up to 170 MHz, and the math accelerator improves selected computational operations without requiring a separate DSP. The 64-UFBGA 5 x 5 mm package supports compact enclosure designs, while medium analog integration can reduce the number of external components needed for mixed-signal measurements. The 32 KB SRAM is suitable for sample buffers and control state, and 128 KB Flash holds application code. Low-power behavior, analog accuracy, battery impedance, wake-up behavior, and thermal performance should be evaluated through the manufacturer’s electrical characteristics and application guidance.
Communications-Enabled Embedded Equipment
The STM32G431RBI6 fits communications-enabled embedded equipment that requires real-time processing alongside medium analog integration. At 170 MHz and up to 213 DMIPS, the Cortex-M4F core can manage protocol stacks, user-interface state, and local supervisory logic. The 128 KB Flash stores firmware, while 32 KB of SRAM handles packet buffers, queues, and application state. Its compact 64-UFBGA package is advantageous in gateways, measurement instruments, and connected controllers where board area is limited. The design must confirm the required communication peripherals, their alternate pin mappings, clock-tree configuration, and DMA channels. RF or high-speed communications also require careful partitioning between sensitive analog sections, digital return paths, and the MCU supply network.
Data referensi engineering untuk STM32G431RBI6 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | STM32G441RBI6 | STM32G451RBI6 | STM32G461RBI6 | STM32G491RBI6 | STM32G441RBI6 |
|---|---|---|---|---|---|---|
| Package | 64-UFBGA (5 x 5 mm) | 64-UFBGA (5 x 5 mm) | 64-UFBGA (5 x 5 mm) | 64-UFBGA (5 x 5 mm) | 64-UFBGA (5 x 5 mm) | 64-UFBGA (5 x 5 mm) |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
Diferensiator Kunci
- Compact high-performance Cortex-M4F implementation (vsSTM32G441RBI6)
- Math-accelerated mixed-signal control (vsSTM32G451RBI6)
- Compact 5 x 5 mm integration (vsSTM32G461RBI6)
Catatan Desain
Implement the 64-UFBGA land pattern, solder-mask openings, and exposed-pad connection exactly as shown in the manufacturer package drawing. Place all decoupling capacitors close to their associated supply and ground pins, with the shortest possible return path. The 5 x 5 mm package leaves little routing margin, so complete escape-routing and assembly-capability reviews before committing to the footprint.
Treat the exposed pad as an essential thermal and electrical connection rather than an optional area. Provide a low-impedance path to the ground plane, maintain thermal-copper continuity beneath the device, and avoid isolated thermal-via fields. Validate the final assembly under maximum expected ambient temperature and operating activity because local heating can influence oscillator accuracy, analog performance, and long-term device reliability.
Separate analog inputs, voltage references, and low-level sensor paths from high-speed digital clocks and switching returns. Use a continuous ground reference beneath the device, avoid routing sensitive signals across split-plane boundaries, and place analog filtering components near the associated pins. The STM32G431RBI6 combines 170 MHz digital processing with medium analog integration, so return-path and reference-voltage isolation are essential to preserving measurement quality.
Do not infer firmware compatibility from package or processor compatibility alone. Review the exact peripheral set, alternate-function mappings, interrupt assignments, clock configuration, memory map, and low-power behavior before replacing the STM32G431RBI6 with another STM32G4 member. Validate startup, watchdog behavior, ADC calibration, communication peripherals, and boot requirements on the final hardware.
Informasi Konformitas
Compliance declarations were not identified in the available product documentation excerpts. Confirm RoHS, REACH, automotive qualification, lead-free, halogen-free, and conflict-minerals status with STMicroelectronics for the exact ordering code.
