STM32L100RCT6 - Ultra-Low-Power ARM Cortex-M3 MCU | STMicroelectronics
MPN: STM32L100RCT6 ✓ Hoạt độngSTM32L100RCT6 Tóm tắt
What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a type of embedded processor designed to minimize energy consumption while maintaining computational capability. It typically integrates multiple low-power modes (such as sleep, stop, and standby) and features like dynamic voltage scaling and clock gating to extend battery life in portable and IoT devices. In the system hierarchy, an ultra-low-power MCU sits at the heart of embedded systems, managing sensors, actuators, and communication interfaces while consuming minimal power, often in the microamp range during standby.
Key features of the STM32L100RCT6 include its ultra-low-power modes: a low-power run mode at 5.1 µA, a sleep mode at 3.4 µA, a stop mode at 1.8 µA, and a standby mode at 0.4 µA (typical values). The device also integrates a 12-bit ADC with up to 16 channels, a 12-bit DAC, and a real-time clock (RTC) with calendar and alarm functions. It supports a wide operating temperature range of -40°C to +85°C, making it suitable for industrial and consumer applications.
Technically, the STM32L100RCT6 is built on ST's low-leakage process technology, which enables its exceptional power efficiency. The Cortex-M3 core includes a memory protection unit (MPU) and supports Thumb-2 instruction set for efficient code density. The device also features a flexible clock tree with multiple internal and external oscillator options, including a 32 kHz RTC oscillator and a 4-32 MHz main crystal oscillator. The integrated DMA controller allows peripheral-to-memory data transfers without CPU intervention, reducing power consumption and improving system throughput.
Typical applications include battery-powered sensor nodes, portable medical devices, smart meters, and industrial control systems. The STM32L100RCT6 is particularly well-suited for applications requiring long battery life, such as wireless sensor networks and wearable devices, where its ultra-low-power modes and fast wake-up times are critical. Its rich peripheral set also enables it to handle complex tasks like data logging, signal processing, and communication protocol implementation.
When designing with this device, it is essential to carefully manage the power supply and decoupling. Use a 100 nF capacitor close to each VDD pin and a 1 µF capacitor on the VDDA pin. Additionally, configure the clock system to use the low-speed internal oscillator (LSI) for the RTC to minimize power consumption in standby mode. Properly configure the GPIO pins to analog mode when unused to reduce leakage current.
Bộ thay thế dễ dàng lắp đặt cho STM32L100RCT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
STM32L162RCT6
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Xem tài liệu →STM32L151RCT6
Liên hệ để biết giá
Xem tài liệu →STM32L100R8T6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L100RBT6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151R8T6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151RBT6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L152RCT6
📋 Tham chiếu thay thế (không có trong danh mục)
LPC1768FBD64
📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F5438AIPZR
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Xem tài liệu →STM32L100RCT6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M3 |
| Max Frequency | 32 MHz |
| Flash Memory | 256 KB |
| SRAM | 16 KB |
| Điện áp cung cấp | 1.8 V to 3.6 V |
| Hộp | LQFP64 |
| Nhiệt độ hoạt động | -40°C to +85°C |
| Low-Power Run Mode | 5.1 µA (typical) |
| Sleep Mode | 3.4 µA (typical) |
| Stop Mode | 1.8 µA (typical) |
| Standby Mode | 0.4 µA (typical) |
| ADC Resolution | 12-bit |
| ADC Channels | 16 |
| DAC Resolution | 12-bit |
| RTC | Yes (with calendar and alarm) |
| DMA | Yes |
| GPIO Pins | 51 |
| USART | 3 |
| SPI | 2 |
| I2C | 2 |
| Timers | 8 |
Cấu hình chân STM32L100RCT6
| Chân 1 | VBAT — Backup battery supply for RTC and backup registers |
| Chân 2 | PC13 — GPIO or RTC tamper pin |
| Chân 3 | PC14 — GPIO or OSC32_IN |
| Chân 4 | PC15 — GPIO or OSC32_OUT |
| Chân 5 | PF0 — GPIO or OSC_IN |
| Chân 6 | PF1 — GPIO or OSC_OUT |
| Chân 7 | NRST — Reset pin, active low |
| Chân 8 | VSSA — Analog ground |
| Chân 9 | VDDA — Analog power supply |
| Chân 10 | PA0 — GPIO or ADC input |
| Chân 11 | PA1 — GPIO or ADC input |
| Chân 12 | PA2 — GPIO or USART2_TX |
| Chân 13 | PA3 — GPIO or USART2_RX |
| Chân 14 | PA4 — GPIO or DAC_OUT1 |
| Chân 15 | PA5 — GPIO or DAC_OUT2 |
| Chân 16 | PA6 — GPIO or SPI1_MISO |
| Chân 17 | PA7 — GPIO or SPI1_MOSI |
| Chân 18 | PB0 — GPIO or ADC input |
| Chân 19 | PB1 — GPIO or ADC input |
| Chân 20 | PB2 — GPIO or BOOT1 |
| Chân 21 | PB10 — GPIO or I2C2_SCL |
| Chân 22 | PB11 — GPIO or I2C2_SDA |
| Chân 23 | PB12 — GPIO or SPI2_NSS |
| Chân 24 | PB13 — GPIO or SPI2_SCK |
| Chân 25 | PB14 — GPIO or SPI2_MISO |
| Chân 26 | PB15 — GPIO or SPI2_MOSI |
| Chân 27 | PC6 — GPIO or TIM3_CH1 |
| Chân 28 | PC7 — GPIO or TIM3_CH2 |
| Chân 29 | PC8 — GPIO or TIM3_CH3 |
| Chân 30 | PC9 — GPIO or TIM3_CH4 |
| Chân 31 | PA8 — GPIO or MCO |
| Chân 32 | PA9 — GPIO or USART1_TX |
| Chân 33 | PA10 — GPIO or USART1_RX |
| Chân 34 | PA11 — GPIO or USART1_CTS |
| Chân 35 | PA12 — GPIO or USART1_RTS |
| Chân 36 | PA13 — GPIO or SWDIO |
| Chân 37 | PA14 — GPIO or SWCLK |
| Chân 38 | PA15 — GPIO or JTDI |
| Chân 39 | PB3 — GPIO or JTDO |
| Chân 40 | PB4 — GPIO or NJTRST |
| Chân 41 | PB5 — GPIO or I2C1_SMBA |
| Chân 42 | PB6 — GPIO or I2C1_SCL |
| Chân 43 | PB7 — GPIO or I2C1_SDA |
| Chân 44 | BOOT0 — Boot mode selection |
| Chân 45 | PB8 — GPIO or CAN_RX |
| Chân 46 | PB9 — GPIO or CAN_TX |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — Power supply |
| Chân 49 | PC10 — GPIO or USART3_TX |
| Chân 50 | PC11 — GPIO or USART3_RX |
| Chân 51 | PC12 — GPIO or USART3_CK |
| Chân 52 | PD2 — GPIO or TIM3_ETR |
| Chân 53 | PB0 — GPIO or ADC input |
| Chân 54 | PB1 — GPIO or ADC input |
| Chân 55 | PB2 — GPIO or BOOT1 |
| Chân 56 | PB10 — GPIO or I2C2_SCL |
| Chân 57 | PB11 — GPIO or I2C2_SDA |
| Chân 58 | PB12 — GPIO or SPI2_NSS |
| Chân 59 | PB13 — GPIO or SPI2_SCK |
| Chân 60 | PB14 — GPIO or SPI2_MISO |
| Chân 61 | PB15 — GPIO or SPI2_MOSI |
| Chân 62 | PC6 — GPIO or TIM3_CH1 |
| Chân 63 | PC7 — GPIO or TIM3_CH2 |
| Chân 64 | PC8 — GPIO or TIM3_CH3 |
Ứng dụng tiêu biểu
STM32L100RCT6 phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Nodes, Portable Medical Devices, Smart Meters, Industrial Control Systems, Wearable Devices, Wireless Sensor Networks.
Battery-Powered Sensor Nodes
The STM32L100RCT6 is ideal for battery-powered sensor nodes due to its ultra-low-power modes (standby 0.4 µA) and wide supply voltage range (1.8V-3.6V). In a typical wireless sensor node, the MCU wakes up periodically to read sensors, process data, and transmit via a radio module, then returns to standby. The low-power run mode at 5.1 µA allows continuous sensing with minimal energy consumption. The 12-bit ADC with 16 channels can interface with various analog sensors, while the DMA controller enables efficient data transfer without CPU intervention, further reducing power. The RTC with calendar and alarm functions can schedule wake-ups, ensuring the node spends most of its time in standby. Compared to higher-power MCUs, the STM32L100RCT6 can extend battery life from months to years, making it a preferred choice for environmental monitoring, smart agriculture, and industrial IoT applications.
Được đề xuất
Portable Medical Devices
The STM32L100RCT6 is well-suited for portable medical devices such as glucose meters, pulse oximeters, and wearable health monitors. Its ultra-low-power operation is critical for battery-powered devices that must operate for extended periods. The 12-bit ADC can accurately digitize signals from biosensors, while the DAC can generate analog outputs for calibration or stimulation. The device's low-power modes allow it to remain in standby between measurements, preserving battery life. The wide operating temperature range (-40°C to +85°C) ensures reliable operation in various environments. The Cortex-M3 core provides sufficient processing power for signal processing algorithms, such as heart rate calculation or blood oxygen saturation estimation. The rich peripheral set, including USART, SPI, and I2C, enables communication with external sensors and displays. The STM32L100RCT6's small LQFP64 package allows for compact PCB designs, essential for wearable devices.
Được đề xuất
Smart Meters
The STM32L100RCT6 is an excellent choice for smart meters, including electricity, water, and gas meters. These devices require long-term reliability and low power consumption, as they are often battery-powered and expected to operate for years without maintenance. The MCU's ultra-low-power modes, particularly standby at 0.4 µA, ensure minimal energy drain when not actively measuring. The 12-bit ADC can accurately measure analog signals from current and voltage sensors, while the RTC provides accurate time-stamping for usage data. The device's multiple communication interfaces (USART, SPI, I2C) allow connection to communication modules for remote data transmission. The 256 KB Flash memory provides ample space for data logging and firmware updates. The wide operating temperature range ensures reliable operation in outdoor environments. The STM32L100RCT6's low power consumption and robust feature set make it a cost-effective solution for smart metering applications.
Được đề xuất
Industrial Control Systems
The STM32L100RCT6 is suitable for industrial control systems that require reliable operation in harsh environments. Its wide operating temperature range (-40°C to +85°C) and robust design make it suitable for factory automation, process control, and building automation. The device's multiple timers and PWM outputs can control motors, actuators, and lighting systems. The 12-bit ADC can monitor analog sensors for temperature, pressure, and flow. The USART, SPI, and I2C interfaces enable communication with industrial networks such as Modbus, CAN, and Ethernet (via external transceivers). The Cortex-M3 core provides sufficient processing power for control algorithms and data processing. The low-power modes are beneficial for energy-efficient operation, especially in battery-backed or energy-harvesting systems. The STM32L100RCT6's rich peripheral set and industrial-grade reliability make it a versatile choice for various industrial applications.
Được đề xuất
Wearable Devices
The STM32L100RCT6 is ideal for wearable devices such as fitness trackers, smartwatches, and health monitors. Its ultra-low-power consumption is essential for devices that are worn continuously and rely on small batteries. The standby current of 0.4 µA allows the device to remain in sleep mode for extended periods, waking up only to process sensor data or user interactions. The 12-bit ADC can interface with accelerometers, gyroscopes, and heart-rate sensors. The DAC can generate audio signals for alerts or feedback. The device's small LQFP64 package enables compact and lightweight designs. The Cortex-M3 core provides enough processing power for real-time sensor fusion and activity recognition algorithms. The multiple communication interfaces (I2C, SPI, USART) allow connection to Bluetooth Low Energy modules for smartphone connectivity. The STM32L100RCT6's combination of low power, small size, and rich peripherals makes it a popular choice for wearable technology.
Được đề xuất
Wireless Sensor Networks
The STM32L100RCT6 is well-suited for wireless sensor networks (WSNs) where nodes are deployed in remote locations and must operate on battery power for years. Its ultra-low-power modes, including standby at 0.4 µA, are critical for maximizing battery life. The device can wake up periodically to read sensors, process data, and transmit via a radio module, then return to sleep. The 12-bit ADC with 16 channels can interface with various sensors, while the DMA controller enables efficient data transfer without CPU intervention, reducing power consumption. The RTC can schedule wake-ups, ensuring precise timing for data collection. The device's multiple communication interfaces (USART, SPI, I2C) allow connection to various radio modules, such as LoRa, Zigbee, or sub-GHz transceivers. The 256 KB Flash memory provides ample space for data logging and over-the-air updates. The STM32L100RCT6's low power consumption and robust feature set make it an excellent choice for WSN applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L100RCT6 — 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 | STM32L151RCT6 | STM32L100R8T6 | STM32L100RBT6 | STM32L151R8T6 | STM32L151RBT6 | STM32L152RCT6 | STM32L162RCT6 | LPC1768FBD64 |
|---|---|---|---|---|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Max Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 100 MHz |
| Flash Memory | 256 KB | 256 KB | 64 KB | 128 KB | 64 KB | 128 KB | 256 KB | 256 KB | 512 KB |
| SRAM | 16 KB | 16 KB | 8 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 64 KB |
| Standby Current | 0.4 µA | 0.4 µA | 0.4 µA | 0.4 µA | 0.4 µA | 0.4 µA | 0.4 µA | 0.4 µA | 2.5 µA |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| DAC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | None |
Bảo phân biệt quan trọng
- Ultra-low standby current of 0.4 µA (vsLPC1768FBD64)
- Integrated 12-bit DAC (vsLPC1768FBD64)
- Pin-compatible with higher-performance STM32L1 family (vsSTM32L151RCT6)
Ghi chú thiết kế
For optimal power consumption, use the low-speed internal oscillator (LSI) for the RTC and configure unused GPIOs to analog mode to reduce leakage. In standby mode, ensure all I/Os are properly configured to avoid floating inputs. Use the PWR_EnterSTANDBYMode function to enter standby, and configure wake-up sources such as the RTC alarm or external interrupts. The typical standby current is 0.4 µA, but this can increase if GPIOs are not properly set. Refer to the STM32L100xx datasheet and application note AN3193 for detailed low-power design guidelines.
Place a 100 nF decoupling capacitor close to each VDD pin and a 1 µF capacitor on the VDDA pin. Use a ground plane to minimize noise and ensure stable operation. For the crystal oscillator, place the crystal and load capacitors as close as possible to the OSC_IN and OSC_OUT pins, and keep the trace lengths short to reduce parasitic capacitance. Follow the layout recommendations in the STM32L100xx datasheet and application note AN2867 for oscillator design.
Avoid exceeding the absolute maximum ratings, particularly the supply voltage (VDD) which must not exceed 3.6V. Ensure the BOOT0 pin is properly configured to select the correct boot mode; a floating BOOT0 can cause unexpected boot behavior. When using the ADC, ensure the VDDA pin is properly decoupled and the reference voltage is stable. Also, be aware that the STM32L100RCT6 does not have a true EEPROM; if you need non-volatile data storage, consider using the STM32L151RCT6 which includes a true EEPROM.
Thông tin tuân thủ
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified. Halogen-free status not specified in provided data.
