STMicroelectronics STM8L050 8-bit microcontrollers

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STMicroelectronics is boosting feature integration in low-power 8-bit microcontrollers (MCUs) with the STM8L050. Part of the energy-conscious STM8L series, it embeds rich analog peripherals, a DMA controller and separated data EEPROM, all in an SO-8 package with up to six user I/Os.

Leveraging ST’s powerful, efficient STM8 core running at up to 16 MHz, the product delivers performance for resource-constrained products like industrial sensors, toys, access cards, e-bike controllers, home-automation or lighting products, smart printer cartridges or battery chargers.

The integrated DMA (direct memory access) controller speeds application performance by streamlining data transfers between peripherals and memory, or from memory to memory, saving power consumption. The 256 B of separated EEPROM allows applications to store important program data when the MCU is powered down, while allowing maximum utilisation of Flash for code storage.

Alongside two comparators, the MCU has a 4-channel 12-bit analog-digital converter (ADC) and a low-power real-time clock (RTC) with programmable alarm and periodic wake-ups, allowing designers to minimise external analog components. Support for either an external or internal clock at up to 16 MHz further enhances flexibility to balance performance with bill-of-materials (BOM) savings.

Other features include 8 KB of on-chip Flash memory, 1 KB of RAM, two 16-bit timers, one 8-bit timer, and connectivity and debug interfaces including SPI, I²C, UART and SWIM.

The product provides power-saving modes that cut current to as little as 350 nA and operates over a wide voltage range from 3.6 down to 1.8 V. The MCUs are fully specified from -40 to 125°C, ensuring robustness in demanding applications such as industrial controls or lighting products.

For more information: www.st.com/stm8lvl.