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STMicroelectronics STM32G070CBT6TR
- Part No.:
- STM32G070CBT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32G070CBT6TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:5,158
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Product details
Overview
STM32G070CBT6TR from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 128 KB Flash, 36 KB SRAM, operating at up to 64 MHz, and supporting 2.0–3.6 V supply. It integrates four USARTs (two with ISO7816/LIN/IrDA), a 12-bit 0.4 µs ADC (up to 16 external channels), RTC with alarm, and 59 fast I/Os - deployed in industrial sensor nodes requiring low-power connectivity and deterministic real-time control.
For engineers reviewing the STM32G070CBT6TR datasheet, STM32G070CBT6TR pinout, STM32G070CBT6TR application, or STM32G070CBT6TR equivalent, key selection considerations include its LQFP48 package, 64 MHz Cortex-M0+ core, 4× USART with LIN support, 12-bit ADC performance, and dual watchdog timers for safety-critical firmware execution.
Technical Context
The device implements a single-core Arm Cortex-M0+ with MPU, supporting TrustZone-like memory protection via ROP and WRP. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, and internal 16 MHz HSI with PLL for flexible frequency synthesis up to 64 MHz.
Peripheral interconnect uses AHB/APB buses with DMAMUX routing; analog subsystem includes VREFINT, temperature sensor, and VBAT monitoring; communication stack supports Fast-mode Plus I²C (1 Mbit/s), SPI up to 32 Mbit/s, and USARTs with auto-baud detection and Stop-mode wakeup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0+, 64 MHz max - enables deterministic real-time task scheduling in resource-constrained edge devices. |
| Flash / RAM | 128 KB Flash (with readout protection), 36 KB SRAM (32 KB with hardware parity) - supports secure firmware storage and robust runtime data integrity. |
| ADC | 12-bit, 0.4 µs conversion time, up to 16 external channels - delivers high-speed analog sensing for motor current or battery voltage monitoring. |
| Timers | 11 timers: 1 advanced (TIM1), 5 general-purpose, 2 basic, 2 watchdogs - provides PWM generation, input capture, and fail-safe timeout supervision. |
| Communication | 4 USARTs (2 with ISO7816/LIN/IrDA), 2 I²C (Fast-mode Plus), 2 SPI (32 Mbit/s) - enables multi-protocol fieldbus interfacing in industrial automation. |
| Power Range | 2.0–3.6 V supply with Sleep/Stop/Standby modes - allows operation from single Li-ion or 3.3 V rail with sub-µA standby current. |
| I/O Count | Up to 59 fast I/Os, multiple 5 V-tolerant - simplifies level-shifting in mixed-voltage systems and reduces BOM cost. |
Pinout & Package
LQFP48 package (7 × 7 mm, 0.5 mm pitch), ECOPACK2-compliant, with exposed thermal pad (variant code "5B" per ST documentation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core/peripheral rail decoupling; VDDA separate for ADC reference stability. |
| PA0–PA15, PB0–PB15, PC13–PC15, PD0–PD2 | General-purpose I/O | 59 total I/Os; all mappable to EXTI, multiple 5 V-tolerant - supports direct connection to legacy 5 V logic without level shifters. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 1.65–5.5 V logic - compatible with external supervisor ICs or pushbutton circuits. |
| BOOT0 | Boot mode selection | High at power-on selects system memory bootloader - enables field firmware recovery without debugger. |
| SWDIO / SWCLK | Serial Wire Debug interface | 2-pin debug port supporting flash programming and real-time trace - eliminates need for JTAG connector space. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CRC unit | Accelerates firmware image checksum and data packet validation - reduces CPU load during OTA updates or CAN message integrity checks. |
| RTC with calendar & alarm | Full binary-coded decimal calendar, periodic wakeup from Stop/Standby - enables precise time-triggered sensor sampling without external RTC chip. |
| VBAT supply path | Dedicated VBAT pin powers RTC and backup registers - maintains timekeeping and critical state across main power loss using coin cell. |
| Low-power modes | Sleep (1.5 µA), Stop 0 (0.32 µA), Standby (0.25 µA) - extends battery life in wireless sensor endpoints beyond 5 years on CR2032. |
| Memory protection | Readout protection (ROP) and write protection (WRP) - prevents unauthorized firmware extraction or accidental flash overwrite in production units. |
Applications
| Industrial Sensor Node | Smart Meter Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via RS-485 or LoRaWAN gateway. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, data preprocessing, and UART-to-LoRa protocol bridging with precise timing via SysTick and RTC alarms. Use Value: Integrated 4× USART (with LIN/IrDA) and ultra-low Standby current (0.25 µA) enable multi-year operation on AA batteries. | Use Scenario: Electricity meter communicating with utility head-end via optical probe or PLC interface. IC Role / Device Role / Timing Role: Isolated communication co-processor handling ISO7816 smart card interface and pulse counting with hardware timer capture. Use Value: Two USARTs with ISO7816 support and hardware parity-protected 36 KB SRAM ensure secure, error-resilient metrology data exchange. |
| Motor Control Actuator | IoT Gateway Edge Processor |
Use Scenario: Brushless DC motor driver with Hall-effect feedback and overcurrent protection. IC Role / Device Role / Timing Role: Real-time PWM generator (TIM1) with dead-time insertion, ADC sampling of phase currents, and fault shutdown via independent watchdog. Use Value: Advanced-control timer + 12-bit ADC (0.4 µs) enables <1 µs current loop response - critical for torque ripple reduction. | Use Scenario: Edge gateway aggregating Zigbee/Z-Wave sensors and forwarding to cloud via Ethernet/Wi-Fi module. IC Role / Device Role / Timing Role: Protocol translation engine managing concurrent UART, SPI, and I²C peripherals while maintaining local time sync via RTC. Use Value: 59 I/Os with EXTI mapping and 11 timers allow simultaneous management of 4+ wireless radios and status LEDs without external GPIO expanders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32G030F6P6 | 64 KB Flash, 8 KB SRAM, LQFP48, no VBAT or RTC calendar | Lacks calendar RTC and VBAT backup - unsuitable for time-stamped logging or long-term power-loss resilience | Select when cost sensitivity outweighs timekeeping and data retention requirements. |
| STM32G0B1RET6 | 512 KB Flash, 144 KB SRAM, 125 MHz, USB 2.0 FS, LQFP64 | Higher performance, USB host/device, larger package - adds complexity and cost for simple sensor nodes | Choose only if USB connectivity or >128 KB firmware footprint is mandatory. |
Compared with STM32G030F6P6, the STM32G070CBT6TR adds 64 KB Flash, calendar RTC, and VBAT support - enabling secure, time-aware firmware in compact LQFP48 form. Versus STM32G0B1RET6, it trades USB and memory headroom for lower BOM cost and simpler PCB layout in resource-constrained edge nodes.
Availability
STM32G070CBT6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, motor control actuators, and IoT gateway edge processors requiring stable component supply across multi-year production cycles.
Supply support for STM32G070CBT6TR 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 ICs, MEMS, and automotive-grade components since 1987.
The STM32G0 series targets cost-sensitive, low-power embedded applications - delivering Cortex-M0+ performance with enhanced analog integration, security features, and industrial temperature range (-40°C to 85°C) in compact packages.
FAQ
What is the maximum operating frequency and supported voltage range?
The STM32G070CBT6TR operates at up to 64 MHz using its internal 16 MHz HSI with PLL or external crystal. Its supply voltage range is strictly 2.0 V to 3.6 V; operation outside this range risks functional failure or permanent damage. The device includes POR/PDR circuitry and voltage regulator to maintain stable core operation across this range.
Does this MCU support hardware encryption or secure boot?
No, the STM32G070CBT6TR does not integrate hardware cryptographic accelerators (AES, SHA, PKA) or secure boot ROM. It offers software-configurable readout protection (ROP) and write protection (WRP) for Flash/SRAM, but lacks dedicated security peripherals. For certified secure boot, ST recommends the STM32G081 or STM32L5 series.
Can the ADC measure voltages above VDDA?
No - the ADC input voltage must remain within 0 V to VDDA (max 3.6 V). Exceeding VDDA risks latch-up or damage. For signals above VDDA, external resistive dividers or op-amp conditioning circuits are required. The device includes internal VREFINT (1.2 V) and temperature sensor, both referenced to VDDA.
Is SWD debug supported, and what pins are required?
Yes, Serial Wire Debug (SWD) is fully supported using two pins: SWDIO (PA13) and SWCLK (PA14). No NRST connection is mandatory for basic programming, though it improves reliability during mass production flashing. SWD enables full flash erase, read, write, and real-time variable inspection without requiring JTAG header space.
STM32G070CBT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM32G0
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 64MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, SmartCard, UART/USART
- Peripherals:
- DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 36K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 17x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32G070CBT6TR FAQ
1.How can I place an order for STM32G070CBT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32G070CBT6TR 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 STM32G070CBT6TR reliable?
The price and inventory of STM32G070CBT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32G070CBT6TR is usually 5 days.
3.What payment methods are accepted for STM32G070CBT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32G070CBT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32G070CBT6TR?
STM32G070CBT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32G070CBT6TR 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 STM32G070CBT6TR?
For technical support, including STM32G070CBT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32G070CBT6TR requirements.
6.How does Aetrix verify that STM32G070CBT6TR is sourced from the original manufacturer or authorized distributors?
All STM32G070CBT6TR 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 STM32G070CBT6TR meets industry standards.
7.What is the process for return or replacement of STM32G070CBT6TR?
All STM32G070CBT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32G070CBT6TR, 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 STM32G070CBT6TR part is unused and in its original packaging.
Return procedure for STM32G070CBT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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