STMicroelectronics STM32G0B1KET6N

Overview

STM32G0B1KET6N from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller operating up to 64 MHz, featuring 512 KB flash (dual-bank, read-while-write), 144 KB SRAM (128 KB with hardware parity), and integrated FDCAN, USB 2.0 FS device/host, and USB Type-C™ Power Delivery controller. It targets industrial control, smart metering, and USB-C PD endpoint applications requiring secure firmware execution and low-power operation across -40°C to 125°C.

For engineers reviewing the STM32G0B1KET6N datasheet, STM32G0B1KET6N pinout, STM32G0B1KET6N application, or STM32G0B1KET6N equivalent, key selection criteria include dual-bank flash security, 125°C extended temperature rating, FDCAN timing compliance, USB-C PD controller integration, and 5 V-tolerant GPIO mapping for mixed-voltage system interfacing.

Technical Context

The STM32G0B1KET6N implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU) for task isolation in RTOS environments and supports TrustZone®-like secure boot via securable flash area and readout protection (RDP) levels. Its clock system integrates four oscillators - HSE (4–48 MHz), LSE (32.768 kHz), HSI16 (±1%), and HSI48 (crystal-less USB) - enabling precise USB timing and RTC calibration without external components.

Peripheral interconnect uses a hierarchical AHB/APB bus matrix with DMA request multiplexer (DMAMUX), allowing flexible routing of 12-channel DMA transfers to 79 peripheral requests. Analog subsystem includes two 12-bit DACs with sample-and-hold, three rail-to-rail comparators with programmable hysteresis, and a 12-bit ADC with hardware oversampling up to 16-bit resolution and 0.4 µs conversion time.

Key Specifications

Pinout & Package

STM32G0B1KET6N is housed in a 32-pin UFQFPN package (5 × 5 mm, 0.5 mm pitch) with exposed thermal pad, compliant with ECOPACK2 environmental standards. Pin assignments support full peripheral remapping via GPIO alternate function registers (AF0–AF15).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G0B1KET6N, the STM32G0B1RET6 offers expanded I/O and package size for complex interfaces, while the STM32G0C1KET6 doubles flash capacity within the same compact footprint-making the latter ideal for secure, space-constrained USB-C PD endpoints needing firmware versioning.

Availability

STM32G0B1KET6N is available at Aetrix Electronics and suitable for industrial motor drives, smart energy metering, USB-C power adapters, and automotive body electronics requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STM32G0B1KET6N 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, and secure embedded applications - emphasizing rapid time-to-market with integrated analog peripherals, USB-C readiness, and robust functional safety foundations.

FAQ

What is the maximum operating frequency and associated voltage range for STM32G0B1KET6N?

The STM32G0B1KET6N operates at up to 64 MHz across its full 1.7–3.6 V supply range. At 3.3 V, it achieves full performance with all peripherals active; at 1.7 V, maximum frequency is reduced to 24 MHz per datasheet Section 5.3.1. Voltage scaling is managed automatically by the internal regulator during low-power mode transitions.

Does STM32G0B1KET6N support hardware encryption or secure boot features?

Yes - it includes a securable flash area with configurable readout protection (RDP) levels, hardware CRC unit for firmware integrity checking, and 96-bit unique ID for device binding. While it lacks AES accelerators, its MPU enforces memory isolation for RTOS-based secure partitions, and the dual-bank flash enables authenticated firmware rollbacks.

How many FDCAN interfaces does STM32G0B1KET6N integrate, and what protocol versions do they support?

The STM32G0B1KET6N integrates two fully independent FDCAN controllers compliant with ISO 11898-1:2015. Each supports Classical CAN (up to 1 Mbit/s) and CAN FD (up to 5 Mbit/s) with flexible data payloads up to 64 bytes, bit-rate switching, and built-in message RAM with TX/RX FIFOs and filtering.

Is the USB interface on STM32G0B1KET6N capable of crystal-less operation, and what oscillator is used?

Yes - the USB 2.0 Full-Speed interface operates crystal-less using the internal 48 MHz RC oscillator (HSI48), which is factory-calibrated to ±0.25% accuracy over temperature and voltage. This eliminates the need for an external 48 MHz crystal, reducing BOM cost and PCB area in USB-C PD endpoint designs.