Overview
The STM8L151K4U6 is a member of the STM8L ultra-low-power 8-bit microcontroller family from STMicroelectronics. This device is part of the medium-density STM8L15x series, which is designed to offer high processing power while maintaining ultra-low power consumption. The STM8L151K4U6 operates within a voltage range of 1.8 V to 3.6 V and is available in temperature ranges of -40 °C to 85 °C or -40 °C to 125 °C. It features the enhanced STM8 CPU core, providing up to 16 MIPS at 16 MHz, and includes a Harvard architecture with a 3-stage pipeline for efficient processing.
The device is packaged in a 32-pin UFQFPN (5x5x0.55 mm) package, making it suitable for applications where space is limited. It includes an integrated debug module with a hardware interface (SWIM) for non-intrusive In-Application debugging and ultra-fast Flash programming.
Key Specifications
| Parameter | Specification |
|---|---|
| Microcontroller Type | 8-bit STM8 CISC |
| Flash Program Memory | Up to 16 Kbytes |
| Data EEPROM | 1 Kbyte with ECC, RWW |
| RAM | Up to 2 Kbytes |
| Operating Voltage | 1.8 V to 3.6 V (down to 1.65 V at power down) |
| Temperature Range | -40 °C to 85 °C or -40 °C to 125 °C |
| Maximum Frequency | 16 MHz, 16 CISC MIPS peak |
| Low Power Modes | Wait, Low power run (5.1 µA), Low power wait (3 µA), Active-halt with full RTC (1.3 µA), Halt (350 nA) |
| Power Consumption | 195 µA/MHz + 440 µA |
| I/O Leakage | 50 nA |
| Wakeup Time from Halt | 4.7 µs |
| External Interrupt Sources | Up to 40 |
| Communication Interfaces | SPI, Fast I2C 400 kHz, USART (ISO 7816 interface and IrDA) |
| ADC/DAC | 12-bit ADC up to 1 Msps/25 channels, 12-bit DAC with output buffer |
| Timers | Two 16-bit timers, one 16-bit advanced control timer, one 8-bit timer |
| Capacitive Sensing Channels | Up to 16 channels |
Key Features
- Advanced STM8 Core: Harvard architecture and 3-stage pipeline, providing up to 16 MIPS at 16 MHz.
- Low Power Modes: Five low power modes including Wait, Low power run, Low power wait, Active-halt with full RTC, and Halt.
- Memory and Storage: Up to 16 Kbytes of Flash program memory, 1 Kbyte of data EEPROM with ECC and RWW, and up to 2 Kbytes of RAM.
- Communication Interfaces: SPI, Fast I2C 400 kHz, and USART (ISO 7816 interface and IrDA).
- Analog and Digital Peripherals: 12-bit ADC up to 1 Msps/25 channels, 12-bit DAC with output buffer, and ultra-low-power comparators.
- Timers and Watchdogs: Two 16-bit timers, one 16-bit advanced control timer, one 8-bit timer, and two watchdogs.
- Capacitive Sensing: Up to 16 capacitive sensing channels supporting touchkey, proximity, linear touch, and rotary touch sensors.
- Debugging and Programming: Fast on-chip programming and non-intrusive debugging with SWIM, and bootloader using USART.
Applications
- Industrial Automation: Suitable for low-power industrial control systems and automation.
- Consumer Electronics: Ideal for battery-powered devices, smart home appliances, and other consumer electronics requiring low power consumption.
- Medical Devices: Can be used in medical devices that require low power and high reliability.
- Automotive Systems: Applicable in automotive systems where low power and robust performance are necessary.
- IoT Devices: Suitable for Internet of Things (IoT) devices that need to operate on low power and have extended battery life.
Q & A
- What is the operating voltage range of the STM8L151K4U6?
The operating voltage range is 1.8 V to 3.6 V (down to 1.65 V at power down).
- What are the different low power modes available in the STM8L151K4U6?
The device features five low power modes: Wait, Low power run (5.1 µA), Low power wait (3 µA), Active-halt with full RTC (1.3 µA), and Halt (350 nA).
- What is the maximum frequency of the STM8L151K4U6?
The maximum frequency is 16 MHz, providing up to 16 CISC MIPS peak.
- What types of communication interfaces are available on the STM8L151K4U6?
The device includes SPI, Fast I2C 400 kHz, and USART (ISO 7816 interface and IrDA) communication interfaces.
- How many capacitive sensing channels does the STM8L151K4U6 support?
It supports up to 16 capacitive sensing channels.
- What is the package type and size of the STM8L151K4U6?
The device is packaged in a 32-pin UFQFPN (5x5x0.55 mm) package.
- Does the STM8L151K4U6 have any built-in debugging capabilities?
Yes, it features fast on-chip programming and non-intrusive debugging with SWIM.
- What types of timers are available on the STM8L151K4U6?
The device includes two 16-bit timers, one 16-bit advanced control timer, and one 8-bit timer.
- Does the STM8L151K4U6 support any specific automotive or industrial temperature ranges?
Yes, it operates in temperature ranges of -40 °C to 85 °C or -40 °C to 125 °C.
- What is the purpose of the ultra-low-power comparators in the STM8L151K4U6?
The ultra-low-power comparators provide wakeup capability and are used for various analog signal processing tasks.
