STMicroelectronics STM8L050J3M3

The STM8L050J3M3 is a member of the STM8L ultra-low-power 8-bit microcontroller family from STMicroelectronics. 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. The MCU is designed for low-power operations and includes an integrated debug module with a hardware interface (SWIM) for non-intrusive In-Application debugging and ultra-fast Flash programming.

The STM8L050J3M3 incorporates a range of peripherals, including a 12-bit ADC, two comparators, a real-time clock, two 16-bit timers, one 8-bit timer, and standard communication interfaces such as SPI, I2C, and USART. The device also features low-power modes, advanced reset and supply management, and a modular design that simplifies transitions to other ST microcontroller families.

• Advanced STM8 Core: Harvard architecture and 3-stage pipeline, 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 RTC, and Halt.
• Peripherals: 12-bit ADC, two comparators, real-time clock, two 16-bit timers, one 8-bit timer, SPI, I2C, and USART interfaces.
• Memory: 8 Kbytes of Flash program memory, 256 bytes of data EEPROM with ECC, and 1 Kbyte of RAM.
• Debugging and Programming: Fast on-chip programming and non-intrusive debugging with SWIM, bootloader using USART.
• 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 to 16 MHz crystal oscillators, internal 16 MHz factory-trimmed RC, internal 38 kHz low consumption RC.

The STM8L050J3M3 is suitable for a variety of applications that require ultra-low power consumption and robust peripheral sets. These include:

• Industrial Automation: For control and monitoring in industrial environments.
• Consumer Electronics: For devices that need to operate on low power, such as remote controls, sensors, and other battery-powered devices.
• Medical Devices: For medical equipment that requires low power and reliable operation.
• Automotive Systems: For automotive applications where low power and robustness are critical.
• IoT Devices: For Internet of Things applications that need to operate efficiently on low power.

1. What is the processing power of the STM8L050J3M3?

   The STM8L050J3M3 has a processing power of up to 16 MIPS at 16 MHz.

2. What are the low-power modes available in the STM8L050J3M3?

   The device features five low-power modes: Wait, Low-power run (5.1 µA), Low-power wait (3 µA), Active-halt with RTC (1.3 µA), and Halt (350 nA).

3. What types of timers are available in the STM8L050J3M3?

   The device includes two 16-bit timers with 2 channels and one 8-bit timer with a 7-bit prescaler.

4. What communication interfaces does the STM8L050J3M3 support?

   The device supports SPI, Fast I2C 400 kHz, and USART interfaces.

5. How much Flash program memory does the STM8L050J3M3 have?

   The device has 8 Kbytes of Flash program memory.

6. What is the temperature range for the STM8L050J3M3?

   The operating temperature range is from -40 °C to 125 °C.

7. Does the STM8L050J3M3 support non-intrusive debugging?

   Yes, it supports non-intrusive debugging with the SWIM interface.

8. What is the package type for the STM8L050J3M3?

   The device is available in an SO-8 package.

9. What are the key features of the STM8L050J3M3's clock management system?

   The device includes 32 kHz and 1 to 16 MHz crystal oscillators, internal 16 MHz factory-trimmed RC, and internal 38 kHz low consumption RC.

10. Does the STM8L050J3M3 have any specific features for reset and supply management?

    Yes, it features low power, ultra-safe BOR reset with 5 selectable thresholds, ultra-low power POR/PDR, and a programmable voltage detector (PVD).