STMicroelectronics Extends and Enhances STM8L Microcontroller Family, Leveraging Ultra Low-Power EnergyLite™ Technology

The three variants of the STM8L family are the STM8L151, the STM8L152, and the STM8L162. Each of the new devices has 64 Kbytes of Flash memory, effectively doubling the maximum program/data memory available to developers using the 8-bit STM8L family. SRAM density is also increased to 4 Kbytes. To these valuable new features, the STM8L152 also adds an enhanced LCD controller that supports larger segments. Aiming to provide increased security, the STM8L162 is the first device in a new line featuring on-chip 128-bit AES encryption.

Common to all the new devices is an enhanced Real-Time Clock (RTC) module offering sub-second accuracy, as well as support for calibration, enabling increased precision in applications requiring time-stamping and accurate synchronization. These applications include utility metering and use within RF networks. The hardware RTC and its associated automatic wake-up unit have combined current consumption below 1 microamp, allowing developers to use power-saving sleep modes to maximum effect.

To meet increased demand for touch sensitive user interfaces in many consumer and professional markets, the new STM8L devices also provide designers with a robust and power-efficient 16-channel touch controller. This provides capacity for 16 individual touch buttons or a combination of up to 10 buttons plus one rotary sensor, equivalent to a dial or knob, and one slider.