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STMicroelectronics STM32G473PBI6
- Part No.:
- STM32G473PBI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 121-UFBGA
- Datasheet:
-
STM32G473PBI6.pdf
- Description:
- IC MCU 32BIT 128KB FLSH 121UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,903
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Product details
Overview
STM32G473PBI6 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU, operating up to 170 MHz (213 DMIPS), featuring 512 KB Flash with ECC, 128 KB SRAM (96 KB + 32 KB CCM), and integrated analog peripherals including five 12-bit ADCs (0.25 µs conversion), seven 12-bit DAC channels, six rail-to-rail op-amps, and CORDIC/FMAC math accelerators - deployed in motor control, digital power conversion, and industrial sensing systems.
For engineers reviewing the STM32G473PBI6 datasheet, STM32G473PBI6 pinout, STM32G473PBI6 application, or STM32G473PBI6 equivalent, key selection criteria include its dual-bank Flash with read-while-write capability, 5 V-tolerant GPIOs (up to 107), FDCAN support for flexible data-rate automotive/industrial networks, UCPD interface for USB Type-C™ power delivery, and hardware-based RNG for secure firmware updates.
Technical Context
The STM32G473PBI6 implements an Arm Cortex-M4 core with FPU and Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from Flash at 170 MHz. Its memory subsystem includes two independent Flash banks supporting concurrent read/write and PCROP for secure code protection, plus 96 KB main SRAM with parity on first 32 KB and 32 KB CCM SRAM with parity on instruction/data bus.
Analog integration centers on five synchronized 12-bit ADCs (up to 42 channels, 0–3.6 V range), seven DACs (3 buffered external @ 1 MSPS, 4 unbuffered internal @ 15 MSPS), six op-amps configurable as programmable-gain amplifiers (PGA), and dedicated CORDIC/FMAC accelerators for real-time trigonometric and filtering computations - all coordinated via a multi-AHB interconnect matrix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, 170 MHz max frequency (213 DMIPS), MPU for memory protection |
| Memory | 512 KB Flash with ECC, dual-bank RWW; 96 KB SRAM (32 KB with parity); 32 KB CCM SRAM (parity-enabled) |
| Analog Peripherals | 5 × 12-bit ADCs (0.25 µs, up to 42 ch, 16-bit w/oversampling); 7 × 12-bit DACs (3 buffered ext., 4 unbuffered int.) |
| Timers & Control | 14 timers: 3 × advanced motor-control (TIM1/TIM8/TIM20), 2 × 32-bit general-purpose, 7 × 16-bit, 2 × watchdogs, LPTIM |
| Communication | 3 × FDCAN (flexible data rate), 5 × USART/UART, 4 × I²C (Fast Mode Plus), 4 × SPI, 1 × SAI, 1 × USB FS, 1 × UCPD |
| Math Acceleration | CORDIC engine for sin/cos/tan/log/exp; FMAC for FIR/IIR filter acceleration - offloads CPU in real-time control loops |
| Supply & Power | VDD/VDDA: 1.71–3.6 V; low-power modes (sleep/stop/standby/shutdown); VBAT backup for RTC & registers |
Pinout & Package
STM32G473PBI6 is housed in a 100-pin LQFP package (14 × 14 mm, pitch 0.5 mm), compliant with JEDEC MO-026D. The package supports full peripheral mapping across 107 fast I/Os, with up to 91 pins configurable as 5 V-tolerant inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog supply | 1.71–3.6 V input; separate analog domain enables clean ADC/DAC reference and reduced noise coupling |
| VSS, VSSA | Digital & analog ground | Independent ground planes minimize switching noise impact on precision analog measurements |
| NRST | Active-low reset | Asynchronous reset input with internal pull-up; accepts external reset sources or debugger-initiated reset |
| BOOT0 | Boot mode select | High at power-on selects system memory boot (for DFU); low selects user Flash - critical for field firmware recovery |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 107 total GPIOs; most support external interrupt, remappable alternate functions, and 5 V tolerance for mixed-voltage interfacing |
| PA1, PA2, PA3, etc. | ADC/DAC/Op-amp channels | Specific pins assigned to ADC1–5 inputs, DAC1–2 outputs, OPAMP1–6 non-inverting/inverting inputs and outputs |
| PD0–PD15, PE0–PE15 | FDCAN, USART, SPI, I²C | Dedicated peripheral pins with hardware-controlled signal routing (e.g., FDCAN1_RX/TX on PD0/PD1, USART1_TX on PA9) |
Key Features
| Feature | Design Value |
|---|---|
| CORDIC accelerator | Hardware trigonometric/logarithmic computation in ≤10 cycles - eliminates software library overhead in motor FOC or sensor fusion |
| FMAC unit | Dedicated 32-bit filter engine supporting 16-tap FIR or biquad IIR per cycle - enables real-time digital power control without CPU load |
| PCROP security | Proprietary Code Readout Protection allowing selective locking of Flash sectors - prevents IP theft while permitting field firmware updates |
| UCPD controller | Integrated USB Type-C™ Power Delivery PHY and protocol engine - eliminates external UCPD IC in compact USB-C power adapters |
| Flexible clock system | Four clock sources (HSE/HSI48/LSE/LSI) with PLL supporting multiple output dividers - enables precise timing for FDCAN, USB, and audio interfaces simultaneously |
Applications
| Industrial Motor Control | Digital Power Supply |
|---|---|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, PWM generation (TIM1/TIM8), current sensing (ADC1–3), and position feedback decoding (quadrature encoder on TIM2/TIM3). Use Value: CORDIC computes sine/cosine for rotor angle transformation in <1 µs; FMAC handles current-loop PI filtering at 20 kHz without CPU intervention. |
Use Scenario: Isolated AC/DC and DC/DC converters with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Digital power controller managing PWM duty cycle (TIM1/TIM8), voltage/current monitoring (ADC4/5), thermal shutdown (temperature sensor), and communication (FDCAN/UART). Use Value: Dual-bank Flash allows seamless firmware update during operation; 5 V-tolerant GPIOs interface directly with optocoupler-isolated feedback signals. |
| USB-C Power Delivery Adapter | Programmable Industrial Sensor Node |
Use Scenario: Compact 65 W USB-C PD adapter with variable output (5–20 V) and sink/source negotiation. IC Role / Device Role / Timing Role: UCPD controller handling PD messaging, CC line detection, and VBUS control; FDCAN for secondary MCU coordination; DAC for precise voltage reference tuning. Use Value: Integrated UCPD eliminates external transceiver; hardware RNG ensures cryptographically secure PD certificate signing; LQFP100 provides ample GPIOs for LED status and thermal monitoring. |
Use Scenario: Battery-powered wireless sensor node measuring temperature, pressure, and vibration in predictive maintenance systems. IC Role / Device Role / Timing Role: Low-power host MCU acquiring analog sensor data (ADC + op-amp PGA), processing FFT via CORDIC/FMAC, and transmitting via LPUART/USART to gateway. Use Value: Standby current <1.5 µA with RTC wakeup; VREFBUF supplies stable 2.048 V reference to ADC; 32 KB CCM SRAM retains context during deep-sleep transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G474RET6 | Same core/peripherals but 512 KB Flash + 256 KB SRAM; no CORDIC/FMAC; includes AES-256 and PKA crypto accelerators | Better suited for secure firmware OTA updates and encrypted sensor data transmission; lacks math acceleration for real-time motor control | Select when cryptographic security outweighs real-time math performance; verify SRAM layout compatibility for existing CCM usage |
| STM32F303VCT6 | ARM Cortex-M4 @ 72 MHz; 256 KB Flash, 48 KB SRAM; 4 × 12-bit ADCs, 2 × DACs, no CORDIC/FMAC, no UCPD or FDCAN | Cost-optimized for basic motor control or analog front-end tasks where 170 MHz and USB-C PD are unnecessary | Choose for legacy designs migrating from F3 series; confirm missing FDCAN/UCPD functionality is not required in target application |
Compared with STM32G473PBI6, the G474 offers stronger security features but sacrifices deterministic math acceleration, while the F303 reduces cost and complexity at the expense of real-time performance, peripheral count, and modern interface support like FDCAN and UCPD.
Availability
STM32G473PBI6 is available at Aetrix Electronics and suitable for industrial motor drives, digital power supplies, USB-C PD adapters, and programmable sensor nodes requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for STM32G473PBI6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog components for industrial, automotive, and consumer markets.
The STM32G4 series targets high-efficiency digital power conversion, real-time motor control, and USB-C PD applications - combining Arm Cortex-M4 performance with specialized analog and math acceleration to replace discrete signal-chain components.
FAQ
What is the maximum operating frequency and associated DMIPS rating of the STM32G473PBI6?
The STM32G473PBI6 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state Flash execution, delivering 213 DMIPS (Dhrystone MIPS). This performance is sustained across the full 1.71–3.6 V supply range and ambient temperatures from –40 °C to +85 °C (industrial grade).
Does the STM32G473PBI6 support USB Type-C™ Power Delivery, and what hardware blocks enable it?
Yes - the STM32G473PBI6 integrates a full USB Type-C™ Power Delivery (UCPD) controller with physical layer (PHY), protocol engine, and CC line transceivers. It supports PD 3.0 message handling, VCONN switching, and source/sink role negotiation without external ICs, using dedicated UCPD1/UCPD2 pins and internal state machines.
How many analog-to-digital converter (ADC) instances does the STM32G473PBI6 include, and what are their key resolution and speed specifications?
The device integrates five independent 12-bit ADCs (ADC1–ADC5), each capable of 0.25 µs conversion time (up to 4 MSPS). Resolution extends to 16-bit via hardware oversampling (up to 256x), with full-scale input range of 0–3.6 V and support for up to 42 external channels across all units with synchronized sampling.
What packaging and pin-count options are available for the STM32G473PBI6, and which one corresponds to this part number?
The STM32G473PBI6 specifically denotes the LQFP100 package (14 × 14 mm, 0.5 mm pitch, 100 leads). Other variants in the G473 family use different suffixes: 'B' = LQFP48, 'C' = LQFP64, 'E' = LQFP128, 'M' = UFQFPN48, 'P' = LQFP100, 'Q' = UFBGA121, 'R' = TFBGA100, 'V' = WLCSP81, 'X' = LQFP80.
STM32G473PBI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 121-UFBGA
- Series:
- STM32G4
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit
- Speed:
- 170MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, TRNG, WDT
- Number of I/O:
- 102
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 42x12b SAR; D/A 4x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G473PBI6 FAQ
1.How can I place an order for STM32G473PBI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G473PBI6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G473PBI6 reliable?
The price and inventory of STM32G473PBI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G473PBI6 is usually 5 days.
3.What payment methods are accepted for STM32G473PBI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G473PBI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G473PBI6?
STM32G473PBI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G473PBI6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G473PBI6?
For technical support, including STM32G473PBI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G473PBI6 requirements.
6.How does Aetrix verify that STM32G473PBI6 is sourced from the original manufacturer or authorized distributors?
All STM32G473PBI6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G473PBI6 meets industry standards.
7.What is the process for return or replacement of STM32G473PBI6?
All STM32G473PBI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G473PBI6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G473PBI6 part is unused and in its original packaging.
Return procedure for STM32G473PBI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32G473PBI6 Tags
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