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STMicroelectronics STM32G071KBU6

Name: STM32G071KBU6
Brand: STMicroelectronics
SKU: STM32G071KBU6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32G071KBU6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 32-UFQFN Exposed Pad

Datasheet:: STM32G071KBU6.pdf

Description:: IC MCU 32BIT 128KB FLSH 32UFQFPN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STM32G071KBU6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller in UFQFPN32 package, operating up to 64 MHz with 128 KB Flash and 36 KB SRAM. It integrates dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), four USARTs (two with ISO7816/LIN/IrDA), two I²C interfaces (Fast-mode Plus), two SPIs (32 Mbit/s), USB Type-C™ Power Delivery controller, and RTC with alarm-targeting smart sensor nodes and industrial control edge devices.

For engineers reviewing the STM32G071KBU6 datasheet, STM32G071KBU6 pinout, STM32G071KBU6 application, or STM32G071KBU6 equivalent, key selection criteria include its 64 MHz Cortex-M0+ core, 128 KB securable Flash with ROP, dual DAC support for analog waveform generation, low-power timer capability down to Shutdown mode (200 nA), and USB-C PD controller integration for embedded power negotiation.

Technical Context

The STM32G071KBU6 implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and supports TrustZone-like secure boot via Readout Protection (ROP) levels. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, and internal 16 MHz RC (±1%) with PLL for precise timing across temperature ranges.

Peripheral interconnect uses a hierarchical AHB/APB bus matrix enabling concurrent DMA transfers and peripheral access. The 14-timer suite includes TIM1 (advanced motor control), two low-power timers (LPTIM1/2), and SysTick-each mapped to dedicated interrupt vectors with NVIC priority grouping and EXTI event routing for deterministic real-time response.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm Cortex-M0+, 64 MHz max - enables deterministic real-time execution with 1.25 DMIPS/MHz efficiency for compact firmware.
Flash Memory	128 KB with securable area and ROP - supports firmware encryption, anti-cloning, and field firmware updates with integrity checks.
SRAM	36 KB (32 KB with hardware parity) - provides error-detectable data storage for safety-critical variables and stack resilience.
ADC	12-bit, 0.4 µs conversion, 16-channel - delivers high-speed sampling for motor current sensing or sensor fusion without external oversampling hardware.
DAC	Two 12-bit, low-power sample-and-hold - enables simultaneous analog output generation (e.g., reference voltage + waveform synthesis) with rail-to-rail operation.
Low-Power Modes	Shutdown (200 nA), Standby (300 nA), Stop 0 (1.1 µA) - extends battery life in always-on IoT endpoints while retaining RTC and backup registers.
USB-C PD Controller	Integrated Type-C Power Delivery PHY and protocol engine - eliminates external PD controller IC for compact USB-C powered devices.

Pinout & Package

STM32G071KBU6 is housed in a 5 × 5 mm UFQFPN32 (A0B8) package with 0.5 mm pitch, ECOPACK2-compliant, suitable for space-constrained PCB layouts requiring thermal efficiency and reflow compatibility.

Pin/Terminal	Circuit Role	Design Meaning
VDD/VSS	Power supply / Ground	Dual VDD pins (VDDA/VDD) enable analog/digital domain separation; VSSA/VSS isolation reduces noise coupling into ADC/DAC paths.
PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2, PF0–PF1	General-purpose I/O	Up to 60 fast I/Os with 5 V tolerance on selected pins - simplifies level-shifting in mixed-voltage systems (e.g., interfacing with 5 V sensors).
PA2/PA3, PA9/PA10, PB6/PB7	USART TX/RX	Four USARTs mapped across GPIOs - supports dual full-duplex serial links plus LIN/IrDA/ISO7816 on designated channels for automotive and smart card applications.
PA4–PA7, PB13–PB15	SPI/I²S	Two hardware SPIs (32 Mbit/s) with 4–16-bit frame programmability - enables high-throughput sensor data acquisition or audio streaming via I²S multiplexing.
PA1, PA4, PA5, PA6, PA7	ADC IN1–IN5	Five dedicated ADC input channels with internal VREFINT and temperature sensor - allows direct measurement of battery voltage, board temperature, and analog sensor outputs.
PA4, PA5	DAC OUT1/OUT2	Dual independent DAC outputs with configurable trigger sources - supports closed-loop analog control (e.g., bias voltage tuning, waveform generation) without CPU intervention.

Key Features

Feature	Design Value
USB Type-C Power Delivery controller	On-chip PD PHY and protocol stack - reduces BOM count by eliminating discrete PD controller and associated firmware development effort.
Programmable Brownout Reset (BOR)	Configurable trip points (2.0/2.2/2.4/2.7 V) - prevents erratic operation during brownout conditions without external supervisor IC.
Hardware CRC calculation unit	32-bit polynomial engine supporting multiple polynomials - accelerates firmware image validation and communication packet integrity checks in real time.
7-channel DMA with flexible mapping	Per-channel request multiplexing across peripherals - enables zero-CPU-overhead data movement between ADC, SPI, memory, and DAC for continuous sensor logging.
Calendar RTC with alarm & wakeup	Independent VBAT-powered clock with sub-second accuracy and periodic wakeup from Stop/Standby - sustains timekeeping and scheduled wake events during ultra-low-power sleep.

Applications

Smart Sensor Node

Industrial Control Edge Device

Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors and transmitting over LoRaWAN.

IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC sampling, data preprocessing, LoRa modulation, and ultra-low-power scheduling via LPTIM2 and RTC alarm.

Use Value: 200 nA Shutdown mode extends 2xAA battery life beyond 5 years; dual DACs calibrate sensor references; integrated USB-C PD enables field firmware updates via portable power bank.

Use Scenario: DIN-rail mounted PLC I/O module with analog input (0–10 V), digital output (24 V sink), and Modbus RTU over RS-485.

IC Role / Device Role / Timing Role: Real-time controller executing cyclic scan logic, driving isolated outputs via GPIO, sampling analog inputs at 1 kHz, and handling Modbus framing via USART1 with auto-baud detection.

Use Value: 12-bit ADC with hardware oversampling achieves ±0.1% linearity for precision analog input; 5 V-tolerant I/Os interface directly with industrial-level signals; 36 KB SRAM supports multi-tasking RTOS with Modbus stack and diagnostics buffer.

USB-C Powered Consumer Device

Motor Drive Feedback Controller

Use Scenario: Portable USB-C speaker with digital audio input, Class-D amplifier, and battery charging negotiation.

IC Role / Device Role / Timing Role: System manager coordinating I²S audio stream, USB-C PD negotiation, battery gauge monitoring, and amplifier enable sequencing.

Use Value: Integrated USB-C PD controller handles source/sink role negotiation and VBUS voltage control without external IC; dual DACs generate analog volume control and bias voltages for amplifier stages.

Use Scenario: Brushless DC motor driver with Hall-effect commutation, current sensing, and closed-loop speed regulation.

IC Role / Device Role / Timing Role: Timing-critical motor controller using TIM1 advanced timer for PWM generation, ADC for shunt current sampling, and comparators for overcurrent protection.

Use Value: 128 MHz capable TIM1 delivers <100 ns PWM resolution for precise phase alignment; 12-bit ADC samples current at 1 MSps for real-time FOC; comparator outputs feed directly to TIM1 break input for <1 µs fault shutdown.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32G0B1KBU6	256 KB Flash, 144 KB SRAM, same pinout and peripheral set - higher memory density for complex protocol stacks.	Required when running Bluetooth LE stack + OTA update handler alongside real-time control tasks.	Select if firmware size exceeds 128 KB or requires extended RAM for cryptographic buffers and large sensor history.
STM32G031K8U6	32 KB Flash, 8 KB SRAM, identical UFQFPN32 package and core - reduced memory and no USB-C PD controller.	Suitable for cost-sensitive, single-function peripherals where PD negotiation is unnecessary.	Choose for basic sensor interface or GPIO extender roles where USB-C PD and dual DACs are unused.

Compared with STM32G071KBU6, the G0B1 variant offers scalable memory headroom for future feature expansion without layout change, while the G031K8U6 reduces cost and power for minimal-feature deployments-enabling tiered product families from a common footprint.

Availability

STM32G071KBU6 is available at Aetrix Electronics and suitable for smart sensor nodes, industrial control edge devices, USB-C powered consumer electronics, and motor drive feedback controllers requiring stable component supply across long-lifecycle production programs.

Supply support for STM32G071KBU6 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, MEMS, and automotive-grade components since 1987.

The STM32G0 series targets cost-sensitive, energy-efficient embedded applications with enhanced security features and USB-C integration-designed specifically for IoT endpoints, industrial HMIs, and portable electronics needing robust firmware protection and simplified power architecture.

FAQ

What is the maximum operating frequency and voltage range of the STM32G071KBU6?

The STM32G071KBU6 operates at up to 64 MHz with a supply voltage range of 1.7 V to 3.6 V. Its internal 16 MHz RC oscillator maintains ±1% accuracy across temperature and voltage, and the PLL supports frequency multiplication for precise clock derivation without external crystal dependency in many use cases.

Does the STM32G071KBU6 support hardware-based security features?

Yes-it includes Readout Protection (ROP) with three levels, securable Flash area for encrypted code storage, CRC calculation unit for firmware integrity verification, and unique 96-bit ID for device authentication. These features enable secure boot, firmware update signing, and anti-counterfeiting without external secure elements.

Can the STM32G071KBU6 be used in battery-powered applications with multi-year runtime?

Yes-its Shutdown mode draws only 200 nA (typical) with RTC and backup registers retained, and Stop 0 mode consumes 1.1 µA with full SRAM retention. Combined with programmable low-power timers and autonomous peripheral operation (e.g., ADC triggered by LPTIM), it supports decade-scale battery life in sensor nodes powered by coin cells or primary lithium batteries.

How does the integrated USB Type-C Power Delivery controller function without external components?

The on-die USB-C PD controller implements the physical layer (PHY), BMC coding/decoding, and protocol stack-including SOP'/SOP" message handling, VCONN switching, and policy engine logic. It interfaces directly with CC1/CC2 pins and VBUS monitoring circuitry, requiring only passive termination resistors and a single VBUS gate driver MOSFET for full PD 3.0 compliance.

STM32G071KBU6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 32-UFQFN Exposed Pad

Series:: STM32G0

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M0+

Core Size:: 32-Bit Single-Core

Speed:: 64MHz

Connectivity:: HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB Type-C™ (Power Delivery)

Peripherals:: Brown-out Detect/Reset, DMA, I2S, POR, PWM, Temp Sensor, WDT

Number of I/O:: 30

Program Memory Size:: 128KB (128K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 36K x 8

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

Data Converters:: A/D 13x12b; D/A 2x12b

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32G071KBU6 FAQ

1.How can I place an order for STM32G071KBU6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32G071KBU6 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 STM32G071KBU6 reliable?

The price and inventory of STM32G071KBU6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G071KBU6 is usually 5 days.

3.What payment methods are accepted for STM32G071KBU6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G071KBU6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32G071KBU6?

STM32G071KBU6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32G071KBU6 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 STM32G071KBU6?

For technical support, including STM32G071KBU6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G071KBU6 requirements.

6.How does Aetrix verify that STM32G071KBU6 is sourced from the original manufacturer or authorized distributors?

All STM32G071KBU6 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 STM32G071KBU6 meets industry standards.

7.What is the process for return or replacement of STM32G071KBU6?

All STM32G071KBU6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32G071KBU6, 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 STM32G071KBU6 part is unused and in its original packaging.

Return procedure for STM32G071KBU6:

1.Submit a request within 90 days.

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

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