STMicroelectronics STM32G0B1CBT6

Overview

STM32G0B1CBT6 from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller operating up to 64 MHz, featuring 128 KB SRAM with hardware parity, 512 KB dual-bank Flash with read-while-write and securable area, and integrated USB 2.0 FS device/host + USB Type-C™ Power Delivery controller. It targets secure, low-power industrial control and smart peripheral applications requiring high I/O count and robust communication.

For engineers reviewing the STM32G0B1CBT6 datasheet, STM32G0B1CBT6 pinout, STM32G0B1CBT6 application, or STM32G0B1CBT6 equivalent, key selection criteria include its dual-bank Flash security architecture, FDCAN + USB PD integration, 94 fast I/Os (including 5 V-tolerant), 12-bit ADC with hardware oversampling, and support for -40°C to 125°C extended temperature operation.

Technical Context

The STM32G0B1CBT6 implements an Arm Cortex-M0+ core with Memory Protection Unit (MPU), enabling secure partitioning of code and data across multiple privilege levels. Its dual-bank Flash supports seamless firmware updates via bank swapping while maintaining real-time execution.

It integrates two FDCAN controllers compliant with ISO 11898-1:2015, a crystal-less USB 2.0 Full-Speed interface, and a dedicated USB Type-C™ Power Delivery controller with PHY and protocol stack support - enabling single-chip USB-C port management without external PD controllers.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad for enhanced thermal dissipation in high-duty-cycle applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32G0B1RCT6, the STM32G0B1CBT6 adds extended temperature support and identical feature set; versus STM32G0B1KBT6, it provides triple Flash capacity, full I/O count, and integrated USB PD - making it optimal for high-integration, thermally demanding, and USB-C–enabled applications.

Availability

STM32G0B1CBT6 is available at Aetrix Electronics and suitable for industrial motor control, smart USB-C peripheral hubs, secure edge sensor nodes, and automotive body control modules requiring stable component supply across long product lifecycles.

Supply support for STM32G0B1CBT6 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 analog devices for industrial, automotive, and consumer markets.

The STM32G0 series targets cost-sensitive, low-power, and secure embedded applications - emphasizing rapid development, robust peripheral integration, and simplified certification for industrial and automotive use cases.

FAQ

What is the maximum operating frequency and core type of the STM32G0B1CBT6?

The STM32G0B1CBT6 features an Arm Cortex-M0+ core with a maximum CPU frequency of 64 MHz. This is achieved using the internal 48 MHz RC oscillator with PLL multiplication or external crystal sources (4–48 MHz). The M0+ core delivers efficient 32-bit processing with low power consumption and deterministic interrupt latency, validated across all operating voltage (1.7–3.6 V) and temperature (-40°C to +125°C) ranges per DS13560 Rev 6.

Does the STM32G0B1CBT6 support USB Type-C™ Power Delivery negotiation without external components?

Yes - the STM32G0B1CBT6 integrates a complete USB Type-C™ Power Delivery controller, including physical layer (PHY), BMC encoder/decoder, protocol engine, and VBUS switch control logic. It supports sink/source role detection, PDO exchange, and fault management using only passive components (resistors, capacitors) on the CC lines and VBUS path, eliminating the need for a separate PD controller IC.

How many I/O pins are 5 V-tolerant, and which packages support them?

The STM32G0B1CBT6 supports multiple 5 V-tolerant I/Os across all packages, with exact count dependent on pin assignment - up to 55 pins in LQFP64 (as confirmed in Table 12, Pin Assignment and Description, DS13560 Rev 6). Tolerance applies to all FT_e-class pins (e.g., PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE7, PF0–PF1), enabling direct interfacing with 5 V logic without level shifters.

What debug interfaces are supported, and is JTAG available?

The STM32G0B1CBT6 supports Serial Wire Debug (SWD) via SWDIO and SWCLK pins only - JTAG is not implemented. SWD provides full programming, real-time debugging, and memory access with two-wire simplicity and minimal pin overhead. SWD is compatible with ST-LINK/V2-1, SEGGER J-Link, and OpenOCD-based toolchains, and remains functional in all low-power modes except Shutdown.