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STMicroelectronics STM32G4A1MET3

Name: STM32G4A1MET3
Brand: STMicroelectronics
SKU: STM32G4A1MET3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32G4A1MET3

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 80-LQFP

Datasheet:: STM32G4A1MET3.pdf

Description:: IC MCU 32BIT 512KB FLASH 80LQFP

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Product details

Overview

STM32G4A1MET3 from STMicroelectronics is a 32-bit Arm® Cortex®-M4 microcontroller with FPU and ART Accelerator, operating at up to 170 MHz (213 DMIPS), featuring 512 KB flash with ECC, 112 KB SRAM (96 KB + 16 KB CCM), and integrated analog peripherals including three 16-bit ADCs, four 12-bit DACs, four rail-to-rail comparators, and four operational amplifiers - deployed in motor control, digital power conversion, and industrial sensing systems.

For engineers reviewing the STM32G4A1MET3 datasheet, STM32G4A1MET3 pinout, STM32G4A1MET3 application, or STM32G4A1MET3 equivalent, key selection considerations include its dual FDCAN support for automotive-grade communication, CORDIC/FMAC hardware accelerators for real-time trigonometric and filtering math, and UCPD interface for USB Type-C™ power delivery control - all in a compact UFQFPN48 (7 × 7 mm) package.

Technical Context

The STM32G4A1MET3 implements an Arm Cortex-M4 core with floating-point unit and Memory Protection Unit (MPU), coupled with ST's Adaptive Real-Time (ART) Accelerator enabling zero-wait-state execution from flash memory. Its interconnect matrix supports concurrent access to flash, SRAM, and peripherals without bus contention.

It integrates dual FDCAN controllers compliant with ISO 11898-1:2015 (CAN FD), a USB 2.0 full-speed interface with LPM/BCD, and a dedicated USB Type-C™/PD controller (UCPD) with VBUS monitoring and role swap support - enabling single-chip USB-C host/peripheral/power negotiation.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M4 with FPU and MPU, 170 MHz max frequency (213 DMIPS), supporting DSP instructions and deterministic real-time execution.
Memory	512 KB flash with ECC and PCROP; 96 KB SRAM + 16 KB CCM-SRAM (parity-checked); supports routine boosting for critical code/data.
Analog Peripherals	3 × ADCs (0.25 µs, up to 36 channels, 16-bit w/oversampling); 4 × 12-bit DACs (2 buffered external @ 1 MSPS, 2 unbuffered internal @ 15 MSPS).
Timers & Control	15 timers including 3 advanced motor-control timers (TIM1/TIM8/TIM20) with dead-time generation, emergency stop, and 8× PWM outputs.
Communication	2 × FDCAN, 5 × USART/UART (incl. LIN/IrDA), 3 × I²C (Fast Mode Plus), 3 × SPI, 1 × SAI, 1 × USB FS, 1 × UCPD - all with DMA support and low-latency interrupt routing.
Security & Math	AES-128/256 hardware accelerator; true RNG; CORDIC (sin/cos/atan/hypot); FMAC (filtering acceleration); 96-bit unique ID; CRC unit.
Supply & Power	1.71–3.6 V operation; POR/PDR/BOR; programmable voltage detector (PVD); sleep/stop/standby/shutdown modes; VBAT support for RTC and backup registers.

Pinout & Package

STM32G4A1MET3 is packaged in UFQFPN48 (7 × 7 mm, 0.5 mm pitch), a lead-free, ECOPACK2-compliant surface-mount package with exposed thermal pad. Pin count: 48 terminals.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA	Core & analog supply	1.71–3.6 V input; separate analog domain (VDDA) enables clean ADC/DAC reference; decoupling required per datasheet layout guidelines.
VSS, VSSA	Digital & analog ground	Separate analog/digital ground planes recommended; VSSA must be connected directly to VSS near ADC/DAC sections to minimize noise coupling.
PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1	General-purpose I/O	Up to 86 fast I/Os; most support external interrupts and 5 V tolerance; configurable as GPIO, alternate function, or analog input.
NRST	Active-low reset	Asynchronous reset input; internal pull-up; compatible with external reset supervisors or push-button circuits with RC debounce.
BOOT0	Boot mode select	High at power-on selects system memory boot (for bootloader); low selects main flash; internal pull-down; requires external pull if used in production.
OSC_IN / OSC_OUT	External crystal interface	Supports 4–48 MHz crystal oscillator; internal load capacitors configurable via SYSCFG register; essential for precise clocking in USB/FDCAN applications.

Key Features

Feature	Design Value
FDCAN with flexible data-rate	Dual independent FDCAN controllers supporting ISO 11898-1:2015 CAN FD (up to 5 Mbit/s), ideal for automotive diagnostics and industrial fieldbus replacement.
CORDIC + FMAC accelerators	Hardware-accelerated trigonometric (sin/cos/tan/atan) and filtering (FIR/IIR) operations reduce CPU load by >90% vs. software implementation in motor control loops.
UCPD interface	Integrated USB Type-C™ Power Delivery controller with VBUS sensing, CC line monitoring, and role swap logic - eliminates need for external PD PHY.
Advanced analog subsystem	Four rail-to-rail comparators with window mode; four op-amps configurable as PGA (gain 1–16); internal VREFBUF with 2.048 V/2.5 V/2.9 V outputs for precision ADC/DAC reference.
Low-power timer (LPTIM1)	16-bit timer running from ultra-low-power domains (e.g., LSE/LSI), enabling precise timing during Stop/Standby modes without waking the core.

Applications

Motor Control

Digital Power Supply

Use Scenario: Field-oriented control (FOC) of 3-phase BLDC/PMSM motors in HVAC blowers and industrial drives.

IC Role / Device Role / Timing Role: Primary MCU executing FOC algorithm, PWM generation, current sensing (via ADC), and fault protection (via comparators and emergency stop timers).

Use Value: Integrated CORDIC/FMAC offloads 30+ µs of CPU time per control loop; advanced timers deliver <100 ns PWM dead-time accuracy.

Use Scenario: Digital AC-DC and DC-DC power supplies with adaptive voltage regulation and PMBus communication.

IC Role / Device Role / Timing Role: System controller managing feedback loops (via ADC/DAC), isolation interface (via UART/LIN), and safety-critical overvoltage/overcurrent shutdown.

Use Value: Dual FDCAN enables firmware updates over vehicle network; UCPD supports USB-C PD sink/source negotiation in adapter designs.

Industrial Sensing Node

USB-C Peripheral Hub

Use Scenario: Battery-powered wireless sensor node measuring temperature, pressure, and vibration using analog front-end and BLE gateway interface.

IC Role / Device Role / Timing Role: Sensor fusion hub aggregating multi-channel ADC data, performing oversampling and filtering, then transmitting via LPUART to BLE SoC.

Use Value: 16-bit ADC with hardware oversampling achieves >18 ENOB; LPTIM1 enables sub-µA wake-up intervals for periodic sampling.

Use Scenario: Multi-port USB-C docking station supporting DisplayPort Alt Mode, USB 2.0 data, and 60 W power delivery negotiation.

IC Role / Device Role / Timing Role: Central UCPD manager coordinating CC line state, VBUS monitoring, and policy engine for port role (DFP/UFP) and power contract.

Use Value: Single-chip UCPD eliminates discrete PD controller; integrated USB FS interface handles enumeration and vendor-defined commands.

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 G4A1 series architecture but with 512 KB flash, 128 KB SRAM, and identical peripheral set; differs only in package (LQFP64) and temperature grade (–40 to +105 °C vs. –40 to +85 °C).	Preferred for designs requiring more GPIOs (64-pin vs. 48-pin) or extended temperature operation in industrial environments.	Select when board layout accommodates larger LQFP64 footprint and higher ambient temperature tolerance is needed.
STM32G431KBT6	Lower-density variant: 128 KB flash, 32 KB SRAM, no CORDIC/FMAC, single FDCAN, no UCPD, and reduced ADC/DAC channel count.	Suitable for cost-sensitive motor control or power conversion where advanced math acceleration and USB-C PD are unnecessary.	Choose for simplified BOM and lower unit cost where full G4A1 feature set is unused - avoids overdesign and licensing overhead.

Compared with STM32G474RET6, the STM32G4A1MET3 trades package size and extended temperature rating for compactness and lower thermal mass; versus STM32G431KBT6, it delivers 4× flash, 3.5× SRAM, and mission-critical accelerators (CORDIC/FMAC/UCPD) essential for USB-C PD and real-time motor control.

Availability

STM32G4A1MET3 is available at Aetrix Electronics and suitable for motor control, digital power conversion, industrial sensing, and USB-C peripheral design requiring stable component supply across automotive-qualified production cycles.

Supply support for STM32G4A1MET3 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong focus on industrial and embedded innovation.

The STM32G4 series targets high-efficiency digital power, motor control, and USB-C applications - combining real-time analog integration, hardware math acceleration, and robust communication interfaces in a single chip.

FAQ

What is the maximum operating frequency and corresponding performance metric of the STM32G4A1MET3?

The STM32G4A1MET3 operates at up to 170 MHz with an ART Accelerator enabling zero-wait-state flash execution. Its performance is rated at 213 DMIPS (Dhrystone 2.1), verified under conditions of 1.71–3.6 V supply and 25 °C ambient temperature per DS13268 Rev 4 Section 5.3.1.

Does the STM32G4A1MET3 support USB Type-C™ Power Delivery, and what interfaces are required?

Yes - it integrates a dedicated USB Type-C™/Power Delivery controller (UCPD) with two CC line monitors, VBUS discharge control, and policy engine. Required external components include CC pull-up/down resistors, VBUS sensing circuitry, and optional VCONN switch; no external PD PHY is needed.

How many analog-to-digital converters does the STM32G4A1MET3 include, and what are their key resolution and speed specs?

The device includes three independent 12/16-bit ADCs with 0.25 µs conversion time, supporting up to 36 input channels. Each ADC offers hardware oversampling (up to 8×), selectable resolution (6–16 bits), and 0–3.6 V input range - validated per DS13268 Rev 4 Section 5.3.18.

What low-power modes are supported, and what is the typical current consumption in Stop 0 mode?

It supports Sleep, Stop 0, Stop 1, Standby, and Shutdown modes. In Stop 0 mode (flash powered down, SRAM retained, RTC active), typical current consumption is 1.1 µA at 25 °C with VDD = 3.3 V, as measured per DS13268 Rev 4 Table 29 and confirmed in application note AN5063.

STM32G4A1MET3 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 80-LQFP

Series:: STM32G4

Packaging:: Tray

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, WDT

Number of I/O:: 66

Program Memory Size:: 512KB (512K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 112K x 8

Voltage - Supply (Vcc/Vdd):: 1.71V ~ 3.6V

Data Converters:: A/D 32x12b SAR; D/A 4x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32G4A1MET3 FAQ

1.How can I place an order for STM32G4A1MET3 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32G4A1MET3 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 STM32G4A1MET3 reliable?

The price and inventory of STM32G4A1MET3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G4A1MET3 is usually 5 days.

3.What payment methods are accepted for STM32G4A1MET3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G4A1MET3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32G4A1MET3?

STM32G4A1MET3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32G4A1MET3 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 STM32G4A1MET3?

For technical support, including STM32G4A1MET3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G4A1MET3 requirements.

6.How does Aetrix verify that STM32G4A1MET3 is sourced from the original manufacturer or authorized distributors?

All STM32G4A1MET3 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 STM32G4A1MET3 meets industry standards.

7.What is the process for return or replacement of STM32G4A1MET3?

All STM32G4A1MET3 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G4A1MET3, 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 STM32G4A1MET3 part is unused and in its original packaging.

Return procedure for STM32G4A1MET3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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