STMicroelectronics STM32G0B1CET6N
- Part No.:
- STM32G0B1CET6N
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32G0B1CET6N.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
STM32G0B1CET6N from STMicroelectronics is a 32-bit Arm® Cortex®-M0+ microcontroller with 512 KB Flash, 144 KB SRAM, dual 12-bit DACs, six USARTs, and two FDCAN controllers-designed for industrial control, smart metering, and USB-C PD applications operating from 1.7–3.6 V.
For engineers reviewing the STM32G0B1CET6N datasheet, STM32G0B1CET6N pinout, STM32G0B1CET6N application, or STM32G0B1CET6N equivalent, key selection criteria include its 64 MHz CPU frequency, 94 fast I/Os (including 5 V-tolerant), USB 2.0 FS device/host support, crystal-less USB capability, and integrated USB Type-C™ Power Delivery controller.
Technical Context
The STM32G0B1CET6N integrates an Arm Cortex-M0+ core with MPU, supporting up to 64 MHz operation and hardware parity on 128 KB of its 144 KB SRAM. It features dual independent 12-bit DACs with sample-and-hold, three rail-to-rail analog comparators, and a 12-bit ADC with 0.4 µs conversion time and hardware oversampling up to 16-bit resolution.
Clock architecture includes four oscillators: 4–48 MHz HSE, 32 kHz LSE with calibration, 16 MHz HSI (±1%), and 48 MHz HSI48 for crystal-less USB. Power management supports Sleep, Stop, Standby, and Shutdown modes with programmable BOR/PVD and VBAT backup for RTC and registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 64 MHz max - enables real-time deterministic control in resource-constrained edge nodes. |
| Flash / RAM | 512 KB Flash (dual-bank, RWW), 144 KB SRAM (128 KB with HW parity) - supports secure firmware updates and robust data buffering. |
| Analog Peripherals | 12-bit ADC (16 ch, 0.4 µs), two 12-bit DACs, three comparators - suitable for closed-loop sensor signal conditioning and actuator drive. |
| Communication | 6× USART (3 w/ ISO7816/LIN/IrDA), 3× I²C (Fast-mode Plus), 3× SPI (32 Mbit/s), 2× FDCAN, USB 2.0 FS device/host, USB-C PD controller - enables multi-protocol connectivity in power delivery and industrial gateways. |
| Timers | 15 timers including two 128 MHz-capable advanced timers, one 32-bit general-purpose, six 16-bit GP, two low-power - supports motor control, PWM generation, and precise timing across power states. |
| Supply & Temp | 1.7–3.6 V operation, -40°C to 125°C ambient - qualified for extended industrial and automotive under-hood environments. |
| I/O Count | Up to 94 fast I/Os, multiple 5 V-tolerant - simplifies level-shifting in mixed-voltage systems and legacy interface integration. |
Pinout & Package
STM32G0B1CET6N uses the UFQFPN48 (7 × 7 mm) package with 48 pins and 0.5 mm pitch, compliant with ECOPACK2 environmental standards. Pin functions are validated per ST's DS13560 Rev 6, Section 4 (Pinouts and Alternate Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.7–3.6 V operation; separate VDDA/VSSA required for analog domain stability. |
| PA13/PA14 | SWDIO/SWCLK | Dedicated serial wire debug interface - enables non-intrusive programming and real-time tracing without dedicated JTAG pins. |
| PA9/PA10 | USART1_TX/USART1_RX | Primary asynchronous communication channel - configurable for bootloader, diagnostics, or host interface. |
| PD0/PD1 | FDCAN1_RX/FDCAN1_TX | Flexible CAN FD physical layer interface - supports high-speed (up to 5 Mbit/s) vehicle and industrial bus communication. |
| PA11/PA12 | USB_DM/USB_DP | Crystal-less USB 2.0 Full-Speed interface - eliminates external oscillator for cost-sensitive USB peripheral designs. |
| VBAT | Backup power supply | Supplies RTC and backup registers during main power loss - enables tamper detection and calendar persistence. |
Key Features
| Feature | Design Value |
|---|---|
| USB Type-C™ PD Controller | Integrated hardware block managing CC logic, VCONN switching, and PD messaging - reduces BOM count and firmware complexity in USB-C power adapters. |
| Crystal-less USB 2.0 FS | HSI48 oscillator with trimming via USB SOF packets - eliminates 48 MHz crystal and associated layout constraints. |
| Secure Boot & ROP | Hardware readout protection (ROP) levels and securable flash area - enforces firmware integrity and prevents unauthorized code extraction. |
| Low-Power Timers (LPTIM) | Two autonomous 16-bit timers running from LSE/LSI - enable ultra-low-power periodic wakeups (<1 µA in Stop mode) for sensor polling. |
| 5 V-Tolerant I/Os | Multiple GPIOs tolerant up to 5.5 V - allows direct interfacing with legacy 5 V peripherals without external level shifters. |
Applications
| Industrial PLC I/O Module | Smart Energy Meter |
|---|---|
Use Scenario: Real-time acquisition of analog sensor inputs (voltage, current, temperature) and digital status signals in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Main system MCU handling ADC sampling, PWM output for relay drivers, FDCAN communication with fieldbus, and USB-C PD for configuration port. Use Value: Dual DACs enable simultaneous analog output for calibration references; 144 KB SRAM buffers burst measurement data before CAN transmission. | Use Scenario: High-accuracy energy monitoring with metrology-grade ADC inputs, tamper detection, and secure firmware updates over USB-C. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing intervals, secure boot, and USB-C PD negotiation for field technician access. Use Value: Integrated USB-C PD controller replaces discrete PMIC + MCU combo; 125°C rating ensures reliability in sealed meter enclosures. |
| USB-C Power Adapter | Motor Control Gateway |
Use Scenario: Compact AC/DC adapter negotiating variable voltage/current profiles (e.g., 5–20 V, 0–5 A) with connected devices. IC Role / Device Role / Timing Role: Primary PD policy engine executing USB PD 3.0 state machine, controlling buck/boost converters via PWM, and monitoring VBUS/CC lines. Use Value: Hardware-accelerated PD stack offloads timing-critical USB-C signaling from firmware; crystal-less USB enables HID configuration interface without extra clock source. | Use Scenario: Field-oriented control (FOC) gateway coordinating multiple BLDC motors via CAN FD while providing local HMI via UART-connected display. IC Role / Device Role / Timing Role: Central motion controller running FOC algorithms, managing 128 MHz-capable TIM1 for PWM generation, and synchronizing motor feedback via ADC oversampling. Use Value: Two FDCAN controllers support redundant bus topology; 94 I/Os allow direct connection to encoder interfaces, current shunts, and safety relays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G0B1CEU6 | Same core/peripherals, but in UFQFPN48 package with different marking and temperature grade (–40°C to 105°C vs. 125°C) | Limited to lower ambient temperature environments; lacks extended thermal qualification | Select when full 125°C operation is not required and cost optimization is prioritized. |
| STM32G0C1CEU6 | Identical pinout and feature set, but with 1 MB Flash (vs. 512 KB) and same 144 KB SRAM | Enables larger firmware images, OTA update partitions, and enhanced security stacks | Choose when future-proofing for complex secure boot, cryptography, or dual-bank firmware updates is needed. |
Compared with STM32G0B1CEU6, the STM32G0B1CET6N offers extended temperature support critical for enclosed industrial deployments; versus STM32G0C1CEU6, it trades Flash capacity for cost efficiency where 512 KB suffices for certified firmware size.
Availability
STM32G0B1CET6N is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, USB-C power adapters, and motor control gateways requiring stable component supply across long production lifecycles.
Supply support for STM32G0B1CET6N 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.
The STM32G0 series targets cost-sensitive, power-efficient, and secure entry-level microcontrollers-designed specifically for industrial automation, smart grid infrastructure, and USB-C ecosystem devices.
FAQ
What is the maximum operating temperature for STM32G0B1CET6N?
The STM32G0B1CET6N is rated for operation from –40°C to +125°C ambient temperature, verified per ST's DS13560 Rev 6, Section 5.3.1. This extended range supports deployment in sealed industrial enclosures and automotive under-hood applications where thermal dissipation is constrained.
Does STM32G0B1CET6N support crystal-less USB operation?
Yes. The device integrates a factory-trimmed 48 MHz HSI48 oscillator with automatic calibration using USB Start-of-Frame (SOF) tokens, enabling full-speed USB 2.0 device and host functionality without an external crystal-confirmed in Section 3.9 and Table 45 of DS13560 Rev 6.
How many FDCAN controllers does STM32G0B1CET6N include?
The STM32G0B1CET6N integrates two fully compliant FDCAN controllers supporting ISO 11898-1:2015, with bit rates up to 5 Mbit/s, flexible data-rate (FD) frames, and built-in message RAM. This is documented in Section 3.26 and Table 2 of the datasheet.
Is the 144 KB SRAM fully parity-protected?
No. Of the 144 KB total SRAM, 128 KB includes hardware parity checking; the remaining 16 KB is unguarded. This configuration is explicitly stated in the "Memories" feature list (page 1) and Section 3.4 of DS13560 Rev 6, balancing reliability and memory efficiency for real-time tasks.
STM32G0B1CET6N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM32G0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 64MHz
- Connectivity:
- CANbus, HDMI-CEC, I2C, IrDA, LINbus, SPI, UART/USART, USB2.0, USB Type-C™ (Power Delivery)
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 144K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.7V ~ 3.6V
- Data Converters:
- A/D 15x12b SAR; D/A 2x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G0B1CET6N FAQ
1.How can I place an order for STM32G0B1CET6N through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G0B1CET6N on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32G0B1CET6N reliable?
The price and inventory of STM32G0B1CET6N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G0B1CET6N is usually 5 days.
3.What payment methods are accepted for STM32G0B1CET6N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G0B1CET6N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G0B1CET6N?
STM32G0B1CET6N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G0B1CET6N order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32G0B1CET6N?
For technical support, including STM32G0B1CET6N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G0B1CET6N requirements.
6.How does Aetrix verify that STM32G0B1CET6N is sourced from the original manufacturer or authorized distributors?
All STM32G0B1CET6N products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32G0B1CET6N meets industry standards.
7.What is the process for return or replacement of STM32G0B1CET6N?
All STM32G0B1CET6N units undergo pre-shipment inspection (PSI). If there is an issue with STM32G0B1CET6N, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32G0B1CET6N part is unused and in its original packaging.
Return procedure for STM32G0B1CET6N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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