STM8L151C6T6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics
MPN: STM8L151C6T6 ✓ Hoạt độngSTM8L151C6T6 Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data bus, integrating a processor core, memory, and programmable peripherals. The STM8L151C6T6 belongs to the STM8L ultra-low-power family, which is optimized for applications where power consumption is critical, such as portable medical devices, smart sensors, and industrial monitoring. As a member of the STM8L series, it balances processing capability with energy efficiency, making it a key component in the power management hierarchy of embedded systems.
Key features include an operating power supply range of 1.8V to 3.6V, multiple low-power modes (Wait, Low-power Run, Low-power Wait, Active-halt, and Halt), and a rich set of peripherals: USART, I2C, SPI, 12-bit ADC, 12-bit DAC, comparators, timers, and an RTC. The device also supports an LCD driver (on STM8L152 variants) and offers up to 41 I/O pins. Its ultra-low-power design achieves typical current consumption as low as 0.3 µA in Halt mode, making it ideal for battery-powered applications.
The STM8L151C6T6 is built on ST's proprietary STM8 core architecture, which is designed for high code density and efficient execution. The device includes a flexible clock system with internal and external oscillators, a comprehensive set of timers (including a basic timer, general-purpose timers, and a low-power timer), and a 12-bit ADC with up to 28 channels. The integrated EEPROM allows for data storage without external memory, simplifying system design and reducing BOM cost.
Typical applications include portable medical devices (e.g., glucose meters, pulse oximeters), smart sensors for IoT nodes, industrial process control, and battery management systems. The ultra-low-power modes and wide operating voltage range make it particularly suited for devices powered by coin cells or energy harvesting. The rich analog peripherals (ADC, DAC, comparators) enable direct sensor interfacing without external components.
When designing with this MCU, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 1 µF capacitor at the main power input. For lowest power consumption, use the Halt mode with the RTC running, and configure unused I/Os as analog inputs or outputs to avoid floating inputs. The STM8L151C6T6 is supported by ST's free development tools, including the ST Visual Develop (STVD) IDE and the STM8CubeMX configuration tool, which simplify firmware development and peripheral initialization.
Bộ thay thế dễ dàng lắp đặt cho STM8L151C6T6 — 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 STM8L151C6T6 (cùng hình factor và footprint) — khác nhau ở Package, Data EEPROM, Flash Memory, Communication Interfaces, Core.
STM8L151C6T3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM8L152C6T6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM8L151C6T6TR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM8L151C4T6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM8L151C8T6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM8L151C6T6 Tỷ lệ tối đa & tính chất điện
| Core | STM8 8-bit |
| Tần số xung maksimum | 16 MHz |
| Flash Memory | 32 KB (32K x 8) |
| RAM Size | 2 KB |
| Data EEPROM | 1 KB |
| Điện áp cung cấp hoạt động | 1.8 V to 3.6 V |
| Number of I/O Pins | 41 |
| ADC Resolution | 12-bit |
| ADC Channels | 28 |
| DAC Resolution | 12-bit |
| Comparators | 2 |
| Timers | 4 (1 basic, 2 general-purpose, 1 low-power) |
| Communication Interfaces | USART, I2C, SPI |
| RTC | Yes |
| Hộp | 48-LQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM8L151C6T6
| Chân 1 | PE2 — I/O or analog input |
| Chân 2 | PE3 — I/O or analog input |
| Chân 3 | PE4 — I/O or analog input |
| Chân 4 | PE5 — I/O or analog input |
| Chân 5 | VSS — Ground |
| Chân 6 | VDD — Power supply |
| Chân 7 | PF0 — I/O or analog input |
| Chân 8 | PF1 — I/O or analog input |
| Chân 9 | PF2 — I/O or analog input |
| Chân 10 | PF3 — I/O or analog input |
| Chân 11 | PF4 — I/O or analog input |
| Chân 12 | PF5 — I/O or analog input |
| Chân 13 | VSS — Ground |
| Chân 14 | VDD — Power supply |
| Chân 15 | PB0 — I/O or analog input |
| Chân 16 | PB1 — I/O or analog input |
| Chân 17 | PB2 — I/O or analog input |
| Chân 18 | PB3 — I/O or analog input |
| Chân 19 | PB4 — I/O or analog input |
| Chân 20 | PB5 — I/O or analog input |
| Chân 21 | PB6 — I/O or analog input |
| Chân 22 | PB7 — I/O or analog input |
| Chân 23 | VSS — Ground |
| Chân 24 | VDD — Power supply |
| Chân 25 | PC0 — I/O or analog input |
| Chân 26 | PC1 — I/O or analog input |
| Chân 27 | PC2 — I/O or analog input |
| Chân 28 | PC3 — I/O or analog input |
| Chân 29 | PC4 — I/O or analog input |
| Chân 30 | PC5 — I/O or analog input |
| Chân 31 | PC6 — I/O or analog input |
| Chân 32 | PC7 — I/O or analog input |
| Chân 33 | VSS — Ground |
| Chân 34 | VDD — Power supply |
| Chân 35 | PD0 — I/O or analog input |
| Chân 36 | PD1 — I/O or analog input |
| Chân 37 | PD2 — I/O or analog input |
| Chân 38 | PD3 — I/O or analog input |
| Chân 39 | PD4 — I/O or analog input |
| Chân 40 | PD5 — I/O or analog input |
| Chân 41 | PD6 — I/O or analog input |
| Chân 42 | PD7 — I/O or analog input |
| Chân 43 | VSS — Ground |
| Chân 44 | VDD — Power supply |
| Chân 45 | PE0 — I/O or analog input |
| Chân 46 | PE1 — I/O or analog input |
| Chân 47 | NRST — Reset (active low) |
| Chân 48 | VREF+ — ADC reference voltage |
Ứng dụng tiêu biểu
STM8L151C6T6 phù hợp cho 6 Áp dụngs: Portable Medical Devices, Smart Sensors for IoT, Industrial Process Control, Battery Management Systems, Smart Home Automation, Test and Measurement Equipment.
Portable Medical Devices
The STM8L151C6T6 is ideal for portable medical devices like glucose meters and pulse oximeters. Its ultra-low-power Halt mode (0.3 µA typ) extends battery life, while the 12-bit ADC (28 channels) enables precise sensor readings. The wide voltage range (1.8V-3.6V) allows direct operation from coin cells. In a typical glucose meter, the MCU reads the electrochemical sensor via the ADC, processes the result, and drives an LCD (via external driver or STM8L152 variant). The low-power modes ensure months of operation from a single CR2032 battery. The integrated EEPROM stores calibration data and patient history without external memory. Compared to 32-bit MCUs, the STM8L core offers sufficient processing power for these applications while consuming significantly less power, making it a cost-effective choice for high-volume medical devices.
Được đề xuất
Smart Sensors for IoT
The STM8L151C6T6 excels in smart sensor nodes for IoT applications. Its low-power modes and integrated communication interfaces (USART, I2C, SPI) enable seamless connectivity with wireless modules like LoRa or BLE. The 12-bit ADC and comparators allow direct interfacing with temperature, humidity, and pressure sensors. In a typical IoT node, the MCU wakes from Halt mode every few seconds, reads sensor data, processes it, and transmits via a wireless module before returning to sleep. The 32 KB Flash provides ample space for sensor calibration algorithms and communication protocols. The device's 1.8V-3.6V operating range matches common battery chemistries, and the RTC enables time-stamped data logging. Compared to ARM Cortex-M0 MCUs, the STM8L offers comparable low-power performance at a lower cost, making it attractive for high-volume IoT deployments.
Được đề xuất
Industrial Process Control
In industrial process control, the STM8L151C6T6 provides reliable, low-power monitoring and control. Its 12-bit ADC and comparators enable precise measurement of analog signals from sensors like thermocouples and pressure transducers. The USART interface supports Modbus communication for industrial networks. The device's wide operating temperature range (-40C to +85C) and robust design make it suitable for harsh environments. In a typical application, the MCU reads multiple sensor channels, performs PID control algorithms, and drives actuators via PWM timers. The integrated EEPROM stores calibration parameters and fault logs. The low-power modes reduce heat generation in sealed enclosures, improving reliability. Compared to 16-bit MCUs, the STM8L offers sufficient performance for most control loops while consuming less power and requiring fewer external components.
Được đề xuất
Battery Management Systems
The STM8L151C6T6 is well-suited for battery management systems (BMS) in portable electronics. Its 12-bit ADC monitors cell voltages and temperatures, while the comparators provide over-voltage/under-voltage protection. The low-power modes ensure minimal drain on the battery being monitored. In a typical BMS, the MCU periodically measures each cell voltage, balances cells via GPIO-controlled switches, and communicates status via I2C or USART to a host controller. The 1 KB EEPROM stores battery parameters and charge history. The wide voltage range (1.8V-3.6V) allows the MCU to be powered directly from the battery pack. Compared to dedicated BMS ICs, using an MCU offers flexibility in implementing custom algorithms and communication protocols, while the STM8L's low cost makes it suitable for consumer electronics.
Được đề xuất
Smart Home Automation
The STM8L151C6T6 is a cost-effective choice for smart home devices like thermostats, smart plugs, and lighting controls. Its low-power modes enable battery-powered operation for wireless sensors, while the communication interfaces (I2C, SPI, USART) connect to Wi-Fi or Zigbee modules. The 12-bit ADC reads temperature sensors and potentiometers for user input. In a typical smart thermostat, the MCU reads temperature, compares it to the setpoint, and controls HVAC via a relay. The RTC schedules daily temperature changes. The device's 32 KB Flash stores user preferences and schedules. Compared to 32-bit MCUs, the STM8L offers sufficient processing for these tasks at a lower cost and power consumption, making it ideal for high-volume consumer products.
Được đề xuất
Test and Measurement Equipment
The STM8L151C6T6 is used in portable test and measurement equipment like multimeters and data loggers. Its 12-bit ADC provides accurate voltage and current measurements, while the USART interface enables data transfer to a PC. The low-power modes extend battery life in handheld instruments. In a typical multimeter, the MCU controls an analog front-end, reads the ADC, and displays results on an LCD. The integrated EEPROM stores calibration constants. The device's wide operating voltage range (1.8V-3.6V) allows operation from standard 9V batteries with a regulator. Compared to dedicated measurement ICs, using an MCU offers flexibility in implementing custom measurement algorithms and user interfaces, while the STM8L's low cost makes it suitable for budget-friendly instruments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM8L151C6T6 — 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 | STM8L151C6T3 | STM8L152C6T6 | STM8L151C6T6TR | STM8L151C4T6 | STM8L151C8T6 |
|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB | 64 KB |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| LCD Driver | No | No | Yes (4x28 segments) | No | No | No |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging | Tray | Tray | Tray | Tape & Reel | Tray | Tray |
Bảo phân biệt quan trọng
- Ultra-low-power Halt mode (0.3 µA typ) (vsSTM8L151C4T6)
- Wide operating voltage range (1.8V-3.6V) (vsSTM8L151C8T6)
- No LCD driver (lower cost) (vsSTM8L152C6T6)
Ghi chú thiết kế
For optimal power consumption, use the Halt mode with the RTC running for periodic wake-ups. In Halt mode, current drops to 0.3 µA (typ) with the RTC off, and around 1 µA with the RTC on. Configure unused I/Os as analog inputs or outputs to avoid floating inputs, which can increase leakage current. Use the low-speed internal oscillator (38 kHz) for low-power operation when high clock speeds are not needed.
Place a 100 nF ceramic capacitor close to each VDD pin and a 1 µF capacitor at the main power input. For the ADC, connect a 100 nF capacitor to the VREF+ pin to reduce noise. Ensure a solid ground plane under the LQFP package to minimize EMI and improve thermal performance. The SWIM debug interface pin (PF0) should have a pull-up resistor (10 kΩ) for reliable programming.
Do not exceed the absolute maximum ratings: VDD must not exceed 4.0V, and I/O pins must not exceed VDD + 0.3V. When using the ADC, ensure the sampling time is sufficient for the source impedance; use a 1 µF capacitor on the ADC input if the source impedance is high. The internal EEPROM has a limited write endurance (typically 300k cycles), so implement wear leveling for frequent data updates.
Thông tin tuân thủ
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - choose STM8L151C6T3 for extended temperature range but still not automotive qualified.
