STM32L083RBT6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics
MPN: STM32L083RBT6 ✓ Hoạt độngSTM32L083RBT6 Tóm tắt
An ultra-low-power microcontroller (MCU) is a type of embedded processor designed to minimize energy consumption while maintaining sufficient processing capability for battery-powered or energy-harvesting applications. These MCUs typically feature multiple low-power modes, such as sleep, stop, and standby, allowing the system to dynamically trade off performance for power savings. The STM32L0 series sits within the broader STM32 family, which spans from the entry-level Cortex-M0+ parts to high-performance Cortex-M7 devices, and is specifically optimized for applications where power efficiency is paramount.
Key features of the STM32L083RBT6 include a 12-bit ADC with hardware oversampling, a 12-bit DAC, two comparators, and an integrated LCD driver supporting up to 8x40 segments. It also offers a comprehensive set of communication peripherals: two I2C interfaces, two SPI interfaces, two USARTs, and one low-power UART. The device supports USB 2.0 full-speed device mode, making it suitable for applications requiring connectivity. Additionally, it includes a hardware random number generator (RNG) and a true RTC with calendar and alarm functions.
The STM32L083RBT6 is built on ST's ultra-low-power technology, featuring dynamic voltage scaling and a wide supply voltage range from 1.8V to 3.6V. It achieves a typical power consumption of 0.29 µA in Standby mode with RTC, and 3.4 µA in Stop mode with RTC. The device also supports a low-power run mode at 32 kHz, consuming only 3.2 µA. These characteristics make it ideal for battery-operated devices, such as smart meters, medical monitors, and portable sensors.
Typical applications include smart meters, healthcare devices, industrial sensors, and IoT nodes. The integrated LCD driver simplifies the design of display-equipped devices, while the multiple low-power modes enable extended battery life. The device is also supported by ST's comprehensive ecosystem, including the STM32CubeMX configuration tool and the STM32CubeL0 firmware library, which accelerate development.
When designing with this MCU, careful attention should be paid to the power supply decoupling and the selection of the appropriate low-power mode for the application's duty cycle. The use of the internal 16 MHz HSI oscillator can reduce external component count, but for precise timing, an external crystal is recommended. The device's brown-out reset and power-on reset features ensure reliable operation across the supply voltage range.
Bộ thay thế dễ dàng lắp đặt cho STM32L083RBT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L083RBT6 (cùng hình factor và footprint) — khác nhau ở Package, ADC, DAC, I2C Interfaces, RTC.
STM32L083RBT6TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L082RBT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L081RBT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L073RBT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L071RBT6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L072RBT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L083RBT6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M0+ |
| Maximum Frequency | 32 MHz |
| Flash Memory | 128 KB |
| SRAM | 20 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Hộp | LQFP-64 |
| Khoảng nhiệt độ hoạt động | -40C to +85C |
| ADC | 12-bit, 16 channels, with hardware oversampling |
| DAC | 12-bit, 2 channels |
| Comparators | 2 |
| LCD Driver | 8x40 segments |
| I2C Interfaces | 2 |
| SPI Interfaces | 2 |
| USART Interfaces | 2 |
| Low-Power UART | 1 |
| USB | USB 2.0 full-speed device |
| RNG | Hardware random number generator |
| RTC | True RTC with calendar and alarm |
| Standby Mode Current | 0.29 µA (with RTC) |
| Stop Mode Current | 3.4 µA (with RTC) |
| Low-Power Run Mode Current | 3.2 µA at 32 kHz |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32L083RBT6
| Chân 1 | VBAT — Backup battery supply for RTC and backup registers |
| Chân 2 | PC13 — GPIO / RTC tamper / RTC wakeup |
| Chân 3 | PC14 — GPIO / OSC32_IN |
| Chân 4 | PC15 — GPIO / OSC32_OUT |
| Chân 5 | PF0 — GPIO / OSC_IN |
| Chân 6 | PF1 — GPIO / OSC_OUT |
| Chân 7 | NRST — Reset (active low) |
| Chân 8 | VSSA — Analog ground |
| Chân 9 | VDDA — Analog power supply |
| Chân 10 | PA0 — GPIO / ADC_IN0 / WKUP1 |
| Chân 11 | PA1 — GPIO / ADC_IN1 |
| Chân 12 | PA2 — GPIO / ADC_IN2 / USART2_TX |
| Chân 13 | PA3 — GPIO / ADC_IN3 / USART2_RX |
| Chân 14 | PA4 — GPIO / ADC_IN4 / DAC_OUT1 |
| Chân 15 | PA5 — GPIO / ADC_IN5 / DAC_OUT2 |
| Chân 16 | PA6 — GPIO / ADC_IN6 / SPI1_MISO |
| Chân 17 | PA7 — GPIO / ADC_IN7 / SPI1_MOSI |
| Chân 18 | PB0 — GPIO / ADC_IN8 |
| Chân 19 | PB1 — GPIO / ADC_IN9 |
| Chân 20 | PB2 — GPIO / BOOT1 |
| Chân 21 | PB10 — GPIO / I2C2_SCL / USART3_TX |
| Chân 22 | PB11 — GPIO / I2C2_SDA / USART3_RX |
| Chân 23 | PB12 — GPIO / SPI2_NSS / I2C2_SMBA |
| Chân 24 | PB13 — GPIO / SPI2_SCK |
| Chân 25 | PB14 — GPIO / SPI2_MISO |
| Chân 26 | PB15 — GPIO / SPI2_MOSI |
| Chân 27 | PC6 — GPIO / USART6_TX |
| Chân 28 | PC7 — GPIO / USART6_RX |
| Chân 29 | PC8 — GPIO / USART6_CK |
| Chân 30 | PC9 — GPIO / USART6_CTS |
| Chân 31 | PA8 — GPIO / MCO / USART1_CK |
| Chân 32 | PA9 — GPIO / USART1_TX / USB_VBUS |
| Chân 33 | PA10 — GPIO / USART1_RX / USB_DM |
| Chân 34 | PA11 — GPIO / USB_DM / USART1_CTS |
| Chân 35 | PA12 — GPIO / USB_DP / USART1_RTS |
| Chân 36 | PA13 — GPIO / SWDIO |
| Chân 37 | PA14 — GPIO / SWCLK |
| Chân 38 | PA15 — GPIO / SPI1_NSS / JTDI |
| Chân 39 | PB3 — GPIO / SPI1_SCK / JTDO |
| Chân 40 | PB4 — GPIO / SPI1_MISO / NJTRST |
| Chân 41 | PB5 — GPIO / SPI1_MOSI / I2C1_SMBA |
| Chân 42 | PB6 — GPIO / I2C1_SCL / USART1_TX |
| Chân 43 | PB7 — GPIO / I2C1_SDA / USART1_RX |
| Chân 44 | BOOT0 — Boot mode selection |
| Chân 45 | PB8 — GPIO / I2C1_SCL / CAN_RX |
| Chân 46 | PB9 — GPIO / I2C1_SDA / CAN_TX |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — Power supply |
| Chân 49 | PC10 — GPIO / USART4_TX |
| Chân 50 | PC11 — GPIO / USART4_RX |
| Chân 51 | PC12 — GPIO / USART5_TX |
| Chân 52 | PD2 — GPIO / USART5_RX |
| Chân 53 | PB13 — GPIO / SPI2_SCK |
| Chân 54 | PB14 — GPIO / SPI2_MISO |
| Chân 55 | PB15 — GPIO / SPI2_MOSI |
| Chân 56 | PC13 — GPIO / RTC_TAMP1 |
| Chân 57 | PC14 — GPIO / OSC32_IN |
| Chân 58 | PC15 — GPIO / OSC32_OUT |
| Chân 59 | PF0 — GPIO / OSC_IN |
| Chân 60 | PF1 — GPIO / OSC_OUT |
| Chân 61 | VSS — Ground |
| Chân 62 | VDD — Power supply |
| Chân 63 | VSS — Ground |
| Chân 64 | VDD — Power supply |
Ứng dụng tiêu biểu
STM32L083RBT6 phù hợp cho 6 Áp dụngs: Smart Meters, Healthcare Devices, Industrial Sensors, IoT Nodes, Portable Instruments, Smart Home Devices.
Smart Meters
The STM32L083RBT6 is ideal for smart meters due to its ultra-low-power consumption, integrated LCD driver, and multiple communication interfaces. In a typical smart meter, the MCU reads sensor data, processes it, and displays it on an LCD while periodically transmitting data via a communication interface. The low-power modes allow the meter to operate for years on a single battery. The 12-bit ADC with hardware oversampling ensures accurate measurement of voltage and current, while the RTC provides precise timekeeping for billing purposes. The device's wide supply voltage range (1.8V to 3.6V) accommodates various battery configurations, and its robust peripheral set simplifies the design of a complete metering solution.
Được đề xuất
Healthcare Devices
The STM32L083RBT6 is well-suited for healthcare devices such as portable patient monitors, glucose meters, and pulse oximeters. Its ultra-low-power operation extends battery life, which is critical for wearable and portable medical devices. The integrated ADC and comparators enable accurate sensor signal conditioning, while the multiple communication interfaces allow data transfer to a smartphone or cloud. The device's small form factor and low power consumption make it ideal for continuous monitoring applications. The RTC ensures accurate time-stamping of medical data, and the hardware RNG can be used for secure data encryption, protecting patient privacy.
Được đề xuất
Industrial Sensors
The STM32L083RBT6 is an excellent choice for industrial sensors, such as temperature, pressure, and flow sensors. Its wide operating temperature range (-40C to +85C) and robust design make it suitable for harsh industrial environments. The device's low-power modes enable battery-powered wireless sensor nodes that can operate for years without maintenance. The 12-bit ADC with oversampling provides high-resolution measurements, and the multiple communication interfaces (I2C, SPI, USART) allow easy integration with various sensor modules. The integrated LCD driver can be used for local display of sensor readings, and the RTC enables time-stamped data logging.
Được đề xuất
IoT Nodes
The STM32L083RBT6 is a perfect fit for IoT nodes, which require low power consumption, wireless connectivity, and sensor interfacing. The device's ultra-low-power modes allow battery-powered IoT nodes to operate for extended periods, making them suitable for smart home, environmental monitoring, and asset tracking applications. The multiple communication interfaces support various wireless modules, such as LoRa, BLE, and Zigbee. The integrated ADC and comparators enable direct connection to analog sensors, while the hardware RNG provides secure communication. The device's small package and rich peripheral set make it a versatile choice for IoT edge devices.
Được đề xuất
Portable Instruments
The STM32L083RBT6 is ideal for portable instruments such as digital multimeters, handheld data loggers, and portable test equipment. Its low power consumption ensures long battery life, and the integrated LCD driver simplifies the display interface. The 12-bit ADC with oversampling provides accurate measurements, and the multiple communication interfaces allow data transfer to a PC or smartphone. The device's wide supply voltage range and low-power modes make it suitable for battery-powered operation. The RTC enables time-stamped data logging, and the hardware RNG can be used for secure data storage.
Được đề xuất
Smart Home Devices
The STM32L083RBT6 is well-suited for smart home devices such as smart thermostats, smart locks, and environmental monitors. Its ultra-low-power consumption allows battery-powered devices to operate for years, and the integrated LCD driver can be used for local display. The multiple communication interfaces support various wireless protocols, enabling integration with smart home hubs. The device's low-power modes are ideal for devices that spend most of their time in sleep mode, waking up only to respond to events. The hardware RNG provides secure communication, and the RTC enables scheduling and time-based automation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L083RBT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32L083RBT6TR | STM32L082RBT6 | STM32L073RBT6 |
|---|---|---|---|---|
| Package | LQFP-64 | LQFP-64 | LQFP-64 | LQFP-64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
| Maximum Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 128 KB | 128 KB | 64 KB | 128 KB |
| SRAM | 20 KB | 20 KB | 8 KB | 20 KB |
| LCD Driver | Yes (8x40) | Yes (8x40) | Yes (8x40) | Yes (8x40) |
| Hardware RNG | Yes | Yes | No | No |
| True RTC | Yes | Yes | No | No |
Bảo phân biệt quan trọng
- Integrated LCD driver supporting up to 8x40 segments (vsSTM32L071RBT6)
- Hardware random number generator (RNG) (vsSTM32L073RBT6)
- True RTC with calendar and alarm (vsSTM32L073RBT6)
Ghi chú thiết kế
The STM32L083RBT6 operates from 1.8V to 3.6V. Use a low-dropout regulator (LDO) to provide a stable supply voltage. Decouple the VDD and VDDA pins with 100nF and 1uF capacitors placed close to the pins. For battery-powered applications, consider using the low-power modes (Standby, Stop) to minimize current consumption. The VBAT pin can be connected to a backup battery to maintain RTC and backup registers when the main supply is removed.
For the LQFP-64 package, ensure proper PCB layout with a solid ground plane. Place decoupling capacitors (100nF) as close as possible to each VDD/VSS pair. For the ADC, provide a clean analog ground (VSSA) and analog supply (VDDA) with a ferrite bead to isolate from digital noise. The crystal oscillator pins (OSC_IN/OSC_OUT) should have short traces and proper load capacitors. Follow the layout guidelines in the STM32L0 reference manual (RM0367) for best performance.
Ensure the BOOT0 pin is properly configured to select the correct boot mode. For normal operation, BOOT0 should be tied low. The NRST pin should have a 100nF capacitor to ground for reliable reset. When using the USB interface, ensure the VBUS pin is connected to the USB power and the USB_DP/USB_DM traces are impedance-matched (90 ohms differential). Avoid floating GPIO pins by configuring them as outputs or enabling pull-ups/pull-downs to reduce leakage current.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - choose STM32L083RBT6Q for automotive.
