STM8L151C6T6 - 8-bit Ultra-Low-Power MCU, 32KB Flash | STMicroelectronics
料号： STM8L151C6T6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.19 | $2,190.00 |
STM8L151C6T6 概述
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.
直接替换替代料： STM8L151C6T6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM8L151C6T6 （相同外形与封装尺寸） ——差异在于 Core, Operating Temperature, Package, ADC Channels, Communication Interfaces.
快速对比工具——选择替代料号进行并排对比：
STM8L151C6T3
✅ 直接替换✓ 有现货
$1.65 / 个
查看数据手册 →STM8L152C6T6
✅ 直接替换✓ 有现货
$2.19 / 个
查看数据手册 →STM8L151C6T6TR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8L151C4T6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →STM8L151C8T6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM8L151C6T6 最大额定值与电气特性
| Core | STM8 8-bit |
| 最大时钟频率 | 16 MHz |
| Flash Memory | 32 KB (32K x 8) |
| RAM Size | 2 KB |
| Data EEPROM | 1 KB |
| 工作电源电压 | 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 |
| 封装 | 48-LQFP (7x7 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C |
| RoHS 状态 | Compliant |
STM8L151C6T6 引脚配置
| 引脚 1 | PE2 — I/O or analog input |
| 引脚 2 | PE3 — I/O or analog input |
| 引脚 3 | PE4 — I/O or analog input |
| 引脚 4 | PE5 — I/O or analog input |
| 引脚 5 | VSS — Ground |
| 引脚 6 | VDD — Power supply |
| 引脚 7 | PF0 — I/O or analog input |
| 引脚 8 | PF1 — I/O or analog input |
| 引脚 9 | PF2 — I/O or analog input |
| 引脚 10 | PF3 — I/O or analog input |
| 引脚 11 | PF4 — I/O or analog input |
| 引脚 12 | PF5 — I/O or analog input |
| 引脚 13 | VSS — Ground |
| 引脚 14 | VDD — Power supply |
| 引脚 15 | PB0 — I/O or analog input |
| 引脚 16 | PB1 — I/O or analog input |
| 引脚 17 | PB2 — I/O or analog input |
| 引脚 18 | PB3 — I/O or analog input |
| 引脚 19 | PB4 — I/O or analog input |
| 引脚 20 | PB5 — I/O or analog input |
| 引脚 21 | PB6 — I/O or analog input |
| 引脚 22 | PB7 — I/O or analog input |
| 引脚 23 | VSS — Ground |
| 引脚 24 | VDD — Power supply |
| 引脚 25 | PC0 — I/O or analog input |
| 引脚 26 | PC1 — I/O or analog input |
| 引脚 27 | PC2 — I/O or analog input |
| 引脚 28 | PC3 — I/O or analog input |
| 引脚 29 | PC4 — I/O or analog input |
| 引脚 30 | PC5 — I/O or analog input |
| 引脚 31 | PC6 — I/O or analog input |
| 引脚 32 | PC7 — I/O or analog input |
| 引脚 33 | VSS — Ground |
| 引脚 34 | VDD — Power supply |
| 引脚 35 | PD0 — I/O or analog input |
| 引脚 36 | PD1 — I/O or analog input |
| 引脚 37 | PD2 — I/O or analog input |
| 引脚 38 | PD3 — I/O or analog input |
| 引脚 39 | PD4 — I/O or analog input |
| 引脚 40 | PD5 — I/O or analog input |
| 引脚 41 | PD6 — I/O or analog input |
| 引脚 42 | PD7 — I/O or analog input |
| 引脚 43 | VSS — Ground |
| 引脚 44 | VDD — Power supply |
| 引脚 45 | PE0 — I/O or analog input |
| 引脚 46 | PE1 — I/O or analog input |
| 引脚 47 | NRST — Reset (active low) |
| 引脚 48 | VREF+ — ADC reference voltage |
典型应用
STM8L151C6T6 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： STM8L151C6T6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Ultra-low-power Halt mode (0.3 µA typ) （对比 STM8L151C4T6)
- Wide operating voltage range (1.8V-3.6V) （对比 STM8L151C8T6)
- No LCD driver (lower cost) （对比 STM8L152C6T6)
设计说明
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.
合规信息
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified - choose STM8L151C6T3 for extended temperature range but still not automotive qualified.
