STM32G070CBT6 - 128KB Flash ARM Cortex-M0+ MCU | STMicroelectronics
Référence : STM32G070CBT6 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.63 | $2,63 |
| 10 | $1.78 | $17,80 |
| 100 | $1.39 | $139,00 |
| 500 | $1.3 | $650,00 |
| 1 000 | $1.23 | $1 230,00 |
| 1 500 | $1.17 | $1 755,00 |
STM32G070CBT6 Présentation
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals on a single chip. The STM32G070CBT6 belongs to the STM32G0 series, which is part of the broader STM32 family of 32-bit ARM Cortex-M microcontrollers. This hierarchy places it within the embedded processing domain, where it serves as the central control unit for a wide range of applications.
Key features include a 12-bit ADC with up to 19 channels, multiple timers (including advanced-control timers), and a variety of communication interfaces such as I2C, SPI, USART, and a low-power UART. The device also includes a DMA controller, a CRC calculation unit, and a random number generator. Its low-power modes (Sleep, Stop, Standby) make it suitable for battery-powered applications.
The STM32G070CBT6 is built on a high-performance ARM Cortex-M0+ core with a single-cycle multiplier and a nested vectored interrupt controller (NVIC). It supports a wide range of clock sources, including an internal 16MHz RC oscillator, an external crystal oscillator, and a PLL for higher frequencies. The device is designed for robust operation with brown-out reset, power-on reset, and a programmable voltage detector.
Typical applications include industrial control, consumer electronics, IoT devices, and home automation. Its rich peripheral set and low power consumption make it ideal for sensor hubs, motor control, and smart home gateways. The 48-pin LQFP package provides a good balance between pin count and board space, enabling compact designs.
When designing with this MCU, ensure proper decoupling of the power supply pins and a clean ground plane. The internal RC oscillator is sufficient for many applications, but an external crystal is recommended for precise timing requirements. The device supports in-circuit programming and debugging via SWD, simplifying firmware development.
Alternatives de remplacement direct pour STM32G070CBT6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STM32G071CBT6
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Voir la fiche technique →STM32G070CBT6TR
📋 Alternative de référence (hors catalogue)
STM32G070CBT6 Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M0+ |
| Max CPU Frequency | 64 MHz |
| Flash Memory | 128 KB |
| SRAM | 36 KB |
| Tension d'alimentation | 2.0 V to 3.6 V |
| Boîtier | LQFP48 |
| Température de fonctionnement | -40C to +85C |
| ADC Resolution | 12-bit |
| ADC Channels | 19 |
| Timers | Advanced-control, general-purpose, basic |
| Communication Interfaces | I2C, SPI, USART, LPUART |
| DMA Channels | 5 |
| GPIO Pins | 37 |
| Low Power Modes | Sleep, Stop, Standby |
| Statut RoHS | Compliant |
Configuration des broches de STM32G070CBT6
| Broche 1 | VBAT — Battery backup supply |
| Broche 2 | PC13 — GPIO / RTC tamper |
| Broche 3 | PC14 — GPIO / OSC32_IN |
| Broche 4 | PC15 — GPIO / OSC32_OUT |
| Broche 5 | PF0 — GPIO / OSC_IN |
| Broche 6 | PF1 — GPIO / OSC_OUT |
| Broche 7 | NRST — Reset (active low) |
| Broche 8 | VDD — Digital power supply |
| Broche 9 | VSS — Ground |
| Broche 10 | PA0 — GPIO / ADC_IN0 |
| Broche 11 | PA1 — GPIO / ADC_IN1 |
| Broche 12 | PA2 — GPIO / USART2_TX |
| Broche 13 | PA3 — GPIO / USART2_RX |
| Broche 14 | PA4 — GPIO / SPI1_NSS |
| Broche 15 | PA5 — GPIO / SPI1_SCK |
| Broche 16 | PA6 — GPIO / SPI1_MISO |
| Broche 17 | PA7 — GPIO / SPI1_MOSI |
| Broche 18 | PB0 — GPIO / ADC_IN8 |
| Broche 19 | PB1 — GPIO / ADC_IN9 |
| Broche 20 | PB2 — GPIO / BOOT1 |
| Broche 21 | PB10 — GPIO / I2C2_SCL |
| Broche 22 | PB11 — GPIO / I2C2_SDA |
| Broche 23 | PB12 — GPIO / SPI2_NSS |
| Broche 24 | PB13 — GPIO / SPI2_SCK |
| Broche 25 | PB14 — GPIO / SPI2_MISO |
| Broche 26 | PB15 — GPIO / SPI2_MOSI |
| Broche 27 | PA8 — GPIO / MCO |
| Broche 28 | PA9 — GPIO / USART1_TX |
| Broche 29 | PA10 — GPIO / USART1_RX |
| Broche 30 | PA11 — GPIO / USART1_CTS |
| Broche 31 | PA12 — GPIO / USART1_RTS |
| Broche 32 | PA13 — GPIO / SWDIO |
| Broche 33 | PA14 — GPIO / SWCLK |
| Broche 34 | PA15 — GPIO / JTDI |
| Broche 35 | PB3 — GPIO / JTDO |
| Broche 36 | PB4 — GPIO / NJTRST |
| Broche 37 | PB5 — GPIO / I2C1_SMBA |
| Broche 38 | PB6 — GPIO / I2C1_SCL |
| Broche 39 | PB7 — GPIO / I2C1_SDA |
| Broche 40 | BOOT0 — Boot mode selection |
| Broche 41 | PB8 — GPIO / CAN_RX |
| Broche 42 | PB9 — GPIO / CAN_TX |
| Broche 43 | VDD — Digital power supply |
| Broche 44 | VSS — Ground |
| Broche 45 | PC14 — GPIO / OSC32_IN |
| Broche 46 | PC15 — GPIO / OSC32_OUT |
| Broche 47 | PC13 — GPIO / RTC_TAMP |
| Broche 48 | VBAT — Battery backup supply |
Applications typiques
STM32G070CBT6 convient pour 6 applications: Industrial Control, IoT Devices, Consumer Electronics, Home Automation, Motor Control, Sensor Hubs.
Industrial Control
The STM32G070CBT6 is ideal for industrial control systems due to its robust timer peripherals, multiple communication interfaces, and wide operating temperature range. Its 64MHz Cortex-M0+ core provides sufficient processing power for real-time control loops, while the 12-bit ADC enables precise analog sensing. In a typical PLC or motor controller, the MCU manages digital I/O, reads sensor data, and generates PWM signals for actuators. The advanced-control timers can produce complementary PWM with dead-time insertion, essential for H-bridge and three-phase inverter designs. The device's UART, SPI, and I2C interfaces allow seamless connection to industrial fieldbuses, sensors, and displays. Its low-power modes help reduce energy consumption in remote monitoring stations. The LQFP48 package is compact yet provides enough pins for control signals, making it a cost-effective choice for industrial applications.
Recommandé
IoT Devices
The STM32G070CBT6 is well-suited for IoT devices that require low power consumption and wireless connectivity. Its multiple low-power modes, including Standby with 0.3 uA current, extend battery life in battery-powered sensors. The device's UART and SPI interfaces can connect to Wi-Fi, BLE, or LoRa modules, enabling cloud connectivity. In a typical smart home sensor, the MCU wakes periodically, reads temperature or humidity sensors, and transmits data via a wireless module. The 128KB flash provides ample space for firmware and protocol stacks. The internal RC oscillator eliminates the need for an external crystal, reducing BOM cost. The device's small LQFP48 package fits well on compact PCB designs. Its wide supply voltage range (2.0V-3.6V) allows direct battery connection, simplifying power management.
Recommandé
Consumer Electronics
The STM32G070CBT6 is a versatile MCU for consumer electronics such as smart appliances, remote controls, and wearable devices. Its rich peripheral set, including timers, ADC, and communication interfaces, supports a wide range of functions. In a smart appliance, the MCU controls user interfaces (buttons, LEDs), reads sensors, and communicates with other devices. The device's low power consumption is crucial for battery-operated remotes and wearables. The 64MHz clock speed ensures responsive user interaction. The LQFP48 package is easy to solder and suitable for mass production. The device's robust design, including brown-out reset and power-on reset, ensures reliable operation in consumer environments. Its support for in-circuit programming via SWD simplifies firmware updates during manufacturing.
Recommandé
Home Automation
The STM32G070CBT6 is an excellent choice for home automation hubs and smart home devices. Its multiple UARTs and SPI interfaces allow connection to various sensors and actuators, while its low-power modes enable energy-efficient operation. In a smart thermostat, the MCU reads temperature sensors, controls heating/cooling relays, and communicates with a central hub via Wi-Fi or Zigbee. The device's 12-bit ADC can interface with analog sensors, and its timers can generate PWM for dimming lights or controlling motorized blinds. The 128KB flash is sufficient for complex automation logic. The device's wide operating temperature range (-40C to +85C) ensures reliable operation in various home environments. Its compact LQFP48 package fits well in wall-mounted devices.
Recommandé
Motor Control
The STM32G070CBT6 is well-suited for motor control applications, including BLDC, PMSM, and stepper motors. Its advanced-control timers provide complementary PWM outputs with programmable dead-time, essential for driving H-bridges and three-phase inverters. The 12-bit ADC with up to 19 channels can sample motor currents and voltages for closed-loop control. The device's 64MHz Cortex-M0+ core executes control algorithms efficiently. In a typical BLDC motor driver, the MCU generates PWM signals, reads Hall sensor or encoder feedback, and adjusts duty cycles to maintain speed and torque. The device's fault handling features, such as break inputs on timers, enhance system safety. Its wide supply voltage range and robust I/O structure make it compatible with various motor driver ICs.
Recommandé
Sensor Hubs
The STM32G070CBT6 is ideal for sensor hub applications, where it aggregates data from multiple sensors and processes or forwards it to a host processor. Its multiple communication interfaces (I2C, SPI, USART) allow connection to a variety of digital sensors, while its ADC can interface with analog sensors. In a wearable health monitor, the MCU reads heart rate, accelerometer, and temperature sensors, processes the data, and transmits it via BLE. The device's low power consumption is critical for battery life. The 36KB SRAM provides ample buffer for sensor data. The device's DMA controller enables efficient data transfer without CPU load. Its compact LQFP48 package is suitable for space-constrained designs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32G070CBT6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | STM32G071CBT6 | STM32G070CBT6TR | STM32G070CBT6 |
|---|---|---|---|---|
| Package | LQFP48 | LQFP48 - same | LQFP48 - same | LQFP48 - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 36 KB | 36 KB | 36 KB | 36 KB |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| ADC Channels | 19 | 19 (plus second ADC) | 19 | 19 |
| DAC | No | Yes | No | No |
| Communication Interfaces | I2C, SPI, USART, LPUART | I2C, SPI, USART, LPUART | I2C, SPI, USART, LPUART | I2C, SPI, USART, LPUART |
| Price (qty 1000) | $1.82 | $2.10 | $1.82 | $1.82 |
Principaux différenciateurs
- Cost-effective 128KB flash MCU (vs STM32G071CBT6)
- Low power consumption (vs STM32G071CBT6)
- Simpler peripheral set (vs STM32G071CBT6)
Notes de conception
Decouple each VDD pin with a 100nF ceramic capacitor placed as close as possible to the pin. Additionally, add a 4.7uF bulk capacitor on the main power rail. For the VDDA pin, use a 1uF capacitor and connect it to VDD through a ferrite bead to reduce noise on the analog supply.
Ensure a solid ground plane under the MCU to minimize noise and improve EMC. Keep high-speed signals (SPI, USART) away from the crystal oscillator pins (PF0/PF1) to avoid interference. Use series resistors on clock lines to reduce ringing.
Do not leave unused GPIO pins floating; configure them as outputs or enable internal pull-ups/pull-downs to avoid excessive current consumption. Also, ensure the BOOT0 pin is properly pulled low for normal boot from flash, and verify the NRST pin has a 100nF capacitor to ground for reliable reset.
Informations de conformité
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive grade.
