STMicroelectronics STM32G071KBU6N

Overview

STM32G071KBU6N from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller in UFQFPN32 package, operating up to 64 MHz with 128 KB Flash, 36 KB SRAM, and integrated USB Type-C Power Delivery controller. It features two 12-bit DACs, a 12-bit ADC (0.4 µs conversion), four USARTs (including ISO7816/LIN/IrDA support), and operates across 1.7–3.6 V supply for industrial sensor nodes and smart power peripherals.

For engineers reviewing the STM32G071KBU6N datasheet, STM32G071KBU6N pinout, STM32G071KBU6N application, or STM32G071KBU6N equivalent, key selection criteria include its dual DAC capability, USB-C PD controller integration, 60 fast I/Os with 5 V tolerance, and support for multiple low-power modes (Stop/Standby/Shutdown) with RTC wakeup - critical for battery-powered edge devices and programmable power adapters.

Technical Context

The STM32G071KBU6N implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU), supporting TrustZone-like secure execution isolation. Its clock system integrates dual oscillators (4–48 MHz HSE + 32 kHz LSE), internal 16 MHz RC (±1 %) with PLL, and 32 kHz RC (±5 %), enabling precise timing for real-time control and communication stacks.

Peripheral interconnect uses a flexible AHB/APB matrix with 7-channel DMA and DMAMUX for concurrent data movement across ADC, DAC, USARTs, and SPIs. The analog subsystem includes rail-to-rail comparators with programmable inputs/outputs, temperature sensor, VREFINT, and VBAT monitoring - all calibrated and specified over –40°C to 125°C.

Key Specifications

Pinout & Package

STM32G071KBU6N is housed in a 32-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN32) package, 5 × 5 mm, 0.5 mm pitch, with exposed thermal pad. Pin assignment follows ST's standard STM32G0 series layout, optimized for compact PCB routing and thermal dissipation in space-constrained applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071KBU6N, the STM32G071CBT6 offers greater I/O flexibility at the cost of board area, while the STM32G081KBT6 adds USB-C PD 3.0 features without changing footprint - making the KBU6N optimal for cost-sensitive, space-constrained PD adapter designs where PD 2.0 suffices.

Availability

STM32G071KBU6N is available at Aetrix Electronics and suitable for smart power adapters, industrial sensor nodes, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle assurance, and ECOPACK2-compliant packaging.

Supply support for STM32G071KBU6N 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 automotive-grade components since 1987.

The STM32G0 series targets cost-sensitive, power-efficient embedded applications - delivering Cortex-M0+ performance with advanced analog integration, USB-C PD, and robust security features for next-generation smart peripherals.

FAQ

What is the maximum operating frequency and voltage range of the STM32G071KBU6N?

The STM32G071KBU6N operates at up to 64 MHz and supports a supply voltage range of 1.7 V to 3.6 V. Its internal voltage regulator and programmable brownout reset (BOR) ensure reliable operation across this range, with full peripheral functionality maintained down to 1.7 V - validated per datasheet Section 5.3.1.

Does the STM32G071KBU6N support USB-C Power Delivery negotiation?

Yes - it integrates a dedicated USB Type-C Power Delivery controller compliant with USB PD 2.0, including PHY, protocol engine, and VCONN switch control. It supports source/sink roles, programmable PDOs, and fault protection, eliminating the need for an external PD controller IC in adapter and dock designs.

How many analog-to-digital converter (ADC) channels does the STM32G071KBU6N support?

The device features a single 12-bit ADC with up to 16 external input channels and hardware oversampling capability (up to 16-bit effective resolution). It also includes internal channels for temperature sensing, VREFINT, and VBAT monitoring - all calibrated and specified over the full operating temperature range.

Is the STM32G071KBU6N pin-compatible with other STM32G0 series MCUs in UFQFPN32 package?

No - while the UFQFPN32 footprint is shared across several G0 variants (e.g., STM32G031K8U6, STM32G041K8U6), pin functions differ significantly due to varying peripheral sets. For example, PA11/PA12 are USB DP/DM on G031/G041 but reserved for alternate functions on G071. Always verify pin assignment against Table 12 in DS12232 Rev 5.