8-Bit MCU Marries Ultra Low Power and Rich Analog I/O

STMicroelectronics has announced STM8L050, a low power 8-bit MCU that embeds rich analog peripherals, a DMA controller and separated data EEPROM—all in an inexpensive SO-8 package with up to six user I/Os. Built around ST’s STM8 core running at up to 16 MHz, the STM8L050 is well suited 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, ultimately saving power consumption. The 256 bytes of separated EEPROM allows applications to store important program data when the MCU is powered down, while allowing maximum utilization of flash for code storage.

Alongside two comparators, the STM8L050 has a 4-channel 12-bit analog-digital converter (ADC) and a low-power real-time clock (RTC) with programmable alarm and periodic wakeups, allowing designers to minimize external analog components. In addition, 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 popular connectivity and debug interfaces including SPI, I2C, UART and SWIM. The STM8L050 provides power-saving modes that cut current to as little as 350 nA, and operates over a wide voltage range from 3.6 V down to 1.8 V. The MCUs are fully specified from -40°C to 125°C, ensuring robustness and reliability in demanding applications such as industrial controls or lighting products.

The STM8L050J3 is in production now, and available in the SO-8 package, priced from $0.25 for orders of 10,000 pieces.

STMicroelectronics | www.st.com

8-bit Microcontroller Features Compact 8-Pin Package

STMicroelectronics has introduced its new 8-bit STM8S001 microcontroller (MCU) in an economical SO-8 package. The STM8S001 has I2C, UART, and SPI interfaces, giving unusually versatile connectivity options. With a generous 8KB Flash memory, 1 KB RAM, 128-byte EEPROM, and 3-channel 10-bit ADC also on-chip, it delivers key features of ST’s STM8S003 MCU in a space-saving, low-pin-count device. Additional features include five en.STM8S_MCU_8_pin_package_N3970S_bigGPIOs, one 8-bit and two 16-bit timers, and an internal RC oscillator that allows flexible clock control from 128 kHz to 16 MHz. There is also a Single-Wire Interface Module (SWIM) for programming and debugging.

Fully specified from -40°C to 125°C and featuring the modern and efficient STM8 core operating at 16 MHz, the STM8S001 is well suited for industrial devices like smart sensors and lighting controls, as well as consumer products such as toys, small appliances, personal electronics, PC peripherals, battery chargers, and many others. The STM8S001 in 8-pin SO-8 is in production now, priced from $0.20 for orders of 1,000 pieces. A Discovery kit will be available in Q4 2017.

STMicroelectronics | www.st.com