STMicroelectronics STM32G071KBT6

Overview

STM32G071KBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 128 KB Flash, 36 KB SRAM, and operating voltage range of 1.7–3.6 V. It integrates dual 12-bit DACs, 12-bit ADC (0.4 µs conversion), four USARTs (including ISO7816/LIN support), and USB Type-C™ Power Delivery controller - deployed in smart metering front-ends requiring secure, low-power, mixed-signal control.

For engineers reviewing the STM32G071KBT6 datasheet, STM32G071KBT6 pinout, STM32G071KBT6 application, or STM32G071KBT6 equivalent, key selection criteria include its 64 MHz max CPU frequency, 60 fast I/Os (with 5 V tolerance), RTC with periodic wakeup from Stop/Standby, and hardware CRC unit for firmware integrity verification.

Technical Context

The STM32G071KBT6 implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) and supports up to 64 MHz operation via internal 16 MHz RC + PLL or external 4–48 MHz crystal. Its clock system includes dual oscillators (HSE/LSE), programmable voltage detector (PVD), and brownout reset (BOR) for robust power management across industrial temperature ranges (−40°C to 125°C).

Peripheral interconnect uses a multi-layer AHB/APB bus matrix enabling concurrent DMA transfers and peripheral access. The 14-timer suite includes two 128 MHz-capable advanced timers (TIM1/TIM17), one 32-bit general-purpose timer, and two low-power timers (LPTIM1/LPTIM2) optimized for sub-microamp wake-up timing in battery-backed applications.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad. Pin mapping validated per STMicroelectronics DS12232 Rev 5, Section 4 (Pinouts and Alternate Functions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G071KBT6, STM32G081RBT6 adds cryptographic acceleration and memory headroom for complex connectivity stacks, while STM32G031K8T6 trades security and interface features for lower unit cost in fixed-function embedded controllers.

Availability

STM32G071KBT6 is available at Aetrix Electronics and suitable for smart metering, industrial PLC I/O modules, portable medical diagnostics, and USB-C powered test equipment requiring stable component supply across extended temperature and long product lifecycles.

Supply support for STM32G071KBT6 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, low-power industrial and consumer applications requiring Arm Cortex-M0+ performance with enhanced analog integration and USB-C readiness - bridging entry-level MCU needs with scalable security and connectivity.

FAQ

What is the maximum operating frequency and supported clock sources?

The STM32G071KBT6 operates at up to 64 MHz using its Arm Cortex-M0+ core. Valid clock sources include internal 16 MHz RC oscillator (±1%), internal 32 kHz RC (±5%), 4–48 MHz external crystal (HSE), and 32.768 kHz low-speed crystal (LSE). The PLL can multiply HSI16 or HSE inputs to achieve full-speed operation with jitter below 100 ps RMS.

Does this MCU support hardware encryption or secure boot features?

The STM32G071KBT6 includes readout protection (RDP) levels, securable flash area, and 96-bit unique ID for device binding - but lacks dedicated AES or PKA accelerators. Secure boot is implemented via boot ROM validation of signed firmware images stored in protected flash sectors, leveraging the hardware CRC unit for integrity checks before execution.

What are the low-power mode current consumption values?

In Shutdown mode, typical current is 150 nA (VDD = 3.3 V, Tj = 25°C); Standby draws 300 nA with RTC running; Stop 0 consumes 1.1 µA with 16 MHz RC active; Sleep mode draws 75 µA at 64 MHz. All values are measured per DS12232 Rev 5, Table 28–32, and include VBAT-powered RTC retention in applicable modes.

Can the USB Type-C PD controller operate independently of the main CPU?

Yes - the integrated USB Type-C PD controller includes a dedicated policy engine and BMC transceiver that operate autonomously during VBUS negotiation, even when the Cortex-M0+ core is in Stop or Standby mode. Firmware intervention is required only for non-standard vendor-defined messages or custom port partner behavior.