Overview
The STM8L151F3P3, produced by STMicroelectronics, is an ultra-low-power 8-bit microcontroller (MCU) that belongs to the STM8L151x2/3 family. This device features an enhanced STM8 CPU core, providing increased processing power of up to 16 MIPS at 16 MHz, while maintaining the advantages of a CISC architecture with improved code density and a 24-bit linear addressing space. It is designed for low-power operations and includes an integrated debug module with a hardware interface (SWIM) for non-intrusive in-application debugging and ultrafast Flash programming.
Key Specifications
| Parameter | Specification |
|---|---|
| Operating Power Supply | 1.65 to 3.6 V (without BOR), 1.8 to 3.6 V (with BOR) |
| Temperature Range | -40 to 85 or 125 °C |
| Flash Program Memory | Up to 8 Kbytes |
| Data EEPROM | 256 bytes with ECC |
| RAM | 1 Kbyte |
| Maximum Frequency | 16 MHz, 16 CISC MIPS peak |
| External Interrupt Sources | Up to 40 |
| Low-Power Modes | Wait, Low power run, Low-power wait, Active-halt with RTC, Halt |
| ADC | 12-bit up to 1 Msps/28 channels |
| Timers | Two 16-bit timers with 2 channels, one 8-bit timer |
| Communication Interfaces | SPI, Fast I²C 400 kHz, USART |
| I/Os | Up to 41, all mappable on interrupt vectors |
| Capacitive Sensing Channels | Up to 20 |
Key Features
- Advanced STM8 Core: Harvard architecture and 3-stage pipeline, up to 16 MIPS at 16 MHz.
- Low Power Features: 5 low-power modes, ultra-low leakage per I/O (50 nA), fast wakeup from Halt (5 μs).
- Reset and Supply Management: Low-power, ultra-safe BOR reset with 5 selectable thresholds, ultra-low power POR/PDR, programmable voltage detector (PVD).
- Clock Management: 32 kHz and 1-16 MHz crystal oscillators, internal 16 MHz factory-trimmed RC, internal 38 kHz low consumption RC.
- Low Power RTC: BCD calendar with alarm interrupt, digital calibration with +/- 0.5 ppm accuracy.
- Memories: Up to 8 Kbytes of Flash program memory, 256 bytes of data EEPROM with ECC, 1 Kbyte of RAM.
- DMA: 4 channels supporting ADC, SPI, I²C, USART, timers, and one channel for memory-to-memory.
- Communication Interfaces: SPI, Fast I²C 400 kHz, USART.
- Development Support: Fast on-chip programming and non-intrusive debugging with SWIM, bootloader using USART.
Applications
The STM8L151F3P3 is suitable for a wide range of applications that require ultra-low power consumption and advanced features. These include:
- Industrial automation and control systems.
- Consumer electronics requiring low power and high performance.
- Medical devices that need precise timing and low power operation.
- Automotive systems, especially those requiring robust and reliable operation.
- IoT devices that need to operate for extended periods on battery power.
Q & A
- What is the maximum operating frequency of the STM8L151F3P3?
The maximum operating frequency is 16 MHz, providing up to 16 CISC MIPS peak performance.
- What are the low-power modes available in the STM8L151F3P3?
The device features five low-power modes: Wait, Low power run, Low-power wait, Active-halt with RTC, and Halt.
- What is the temperature range for the STM8L151F3P3?
The operating temperature range is -40 to 85 or 125 °C.
- What communication interfaces are available on the STM8L151F3P3?
The device includes SPI, Fast I²C 400 kHz, and USART interfaces.
- How much Flash program memory does the STM8L151F3P3 have?
The device has up to 8 Kbytes of Flash program memory.
- What is the purpose of the SWIM interface in the STM8L151F3P3?
The SWIM interface allows for non-intrusive in-application debugging and ultrafast Flash programming.
- Does the STM8L151F3P3 support capacitive sensing?
Yes, it supports up to 20 capacitive sensing channels for touchkey, proximity touch, linear touch, and rotary touch sensors.
- What is the power supply range for the STM8L151F3P3?
The operating power supply range is 1.65 to 3.6 V (without BOR) and 1.8 to 3.6 V (with BOR).
- How many external interrupt sources does the STM8L151F3P3 support?
The device supports up to 40 external interrupt sources.
- What is the resolution and speed of the ADC in the STM8L151F3P3?
The ADC is 12-bit and can operate up to 1 Msps with 28 channels.
- Does the STM8L151F3P3 have a real-time clock (RTC)?
Yes, it includes a low-power RTC with BCD calendar and alarm interrupt.
