STMicroelectronics STM32G0B1REI6NTR

Overview

STM32G0B1REI6NTR from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 512 KB flash, 144 KB SRAM, dual 12-bit DACs, 12-channel DMA, and dual FDCAN controllers. It operates from 1.7–3.6 V across –40°C to 125°C, supports crystal-less USB FS, and integrates USB Type-C™ Power Delivery controller - deployed in industrial HMI, smart metering gateways, and battery-powered CAN edge nodes.

For engineers reviewing the STM32G0B1REI6NTR datasheet, STM32G0B1REI6NTR pinout, STM32G0B1REI6NTR application, or STM32G0B1REI6NTR equivalent, key selection criteria include FDCAN dual-controller support, 125°C extended temperature rating, USB PD controller integration, and 512 KB dual-bank flash with read-while-write capability for robust firmware updates.

Technical Context

The device implements an Arm Cortex-M0+ core with MPU, supporting up to 64 MHz operation and hardware parity on 128 KB of its 144 KB SRAM. Its clock system includes four oscillators (HSI16, HSI48, LSE, LSI), programmable PLL, and 32 kHz crystal oscillator with calibration - enabling precise RTC timing and low-jitter USB clock generation without external crystal.

Peripheral interconnect uses a multi-layer AHB/APB matrix with DMAMUX routing flexibility. The dual FDCAN controllers operate independently with dedicated message RAM and timestamping, while six USARTs include three with ISO7816, LIN, and IrDA support - enabling concurrent fieldbus, secure card interface, and diagnostics in compact industrial nodes.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad. Pin count and I/O mapping validated per STMicroelectronics DS13560 Rev 6, 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 STM32G0B1REI6NTR, the STM32G0B1RET6 sacrifices high-temp reliability for lower cost, while the STM32G0C1REI6NTR adds flash capacity and crypto engines at no pinout change - making the G0B1REI6NTR optimal for thermally demanding, resource-constrained CAN/USB edge nodes.

Availability

STM32G0B1REI6NTR is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32G0B1REI6NTR 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, specializing in microcontrollers, power management, sensors, and automotive ICs - with over 40 years of industrial and automotive qualification expertise.

The STM32G0 series targets cost-sensitive, power-efficient, and function-integrated applications in industrial automation, appliance control, and IoT edge nodes - emphasizing security, longevity, and simplified design-in.

FAQ

Does STM32G0B1REI6NTR support crystal-less USB operation?

Yes. It integrates a factory-trimmed 48 MHz HSI48 RC oscillator meeting USB Full-Speed timing jitter requirements (±0.25% initial accuracy, ±1.5% over temperature/voltage), eliminating the need for an external 48 MHz crystal and associated load capacitors.

What is the maximum operating frequency of the Cortex-M0+ core?

The core runs at up to 64 MHz, achieved via PLL multiplication of internal or external clock sources. This frequency is fully supported across the full –40°C to +125°C range with appropriate voltage scaling (VOS0 mode at ≥2.7 V).

How many independent CAN FD interfaces does this MCU provide?

It provides two fully independent FDCAN controllers (FDCAN1 and FDCAN2), each with dedicated message RAM, filters, and timestamping logic - enabling simultaneous operation on separate buses without shared resources or arbitration delay.

Is the 144 KB SRAM entirely parity-protected?

No. Only 128 KB of the 144 KB SRAM includes hardware parity checking; the remaining 16 KB (SRAM2) is unbuffered and used for low-latency peripherals or fast stack operations where parity overhead is undesirable.