Datasheet

Description STM8L151xx, STM8L152xx
12/131 DocID15962 Rev 13
2.2 Ultra-low-power continuum
The ultra-low-power medium-density STM8L151xx and STM8L152xx devices are fully pin-
to-pin, software and feature compatible. Besides the full compatibility within the family, the
devices are part of STMicroelectronics microcontrollers ultra-low-power strategy which also
includes STM8L101xx and STM32L15xxx. The STM8L and STM32L families allow a
continuum of performance, peripherals, system architecture, and features.
They are all based on STMicroelectronics 0.13 µm ultra-low leakage process.
Note: 1 The STM8L151xx and STM8L152xx are pin-to-pin compatible with STM8L101xx devices.
2 The STM32L family is pin-to-pin compatible with the general purpose STM32F family.
Please refer to STM32L15x documentation for more information on these devices.
Performance
All families incorporate highly energy-efficient cores with both Harvard architecture and
pipelined execution: advanced STM8 core for STM8L families and ARM Cortex™-M3 core
for STM32L family. In addition specific care for the design architecture has been taken to
optimize the mA/DMIPS and mA/MHz ratios.
This allows the ultra-low-power performance to range from 5 up to 33.3 DMIPs.
Shared peripherals
STM8L151xx/152xx and STM32L15xx share identical peripherals which ensure a very easy
migration from one family to another:
 Analog peripherals: ADC1, DAC, and comparators COMP1/COMP2
 Digital peripherals: RTC and some communication interfaces
Common system strategy
To offer flexibility and optimize performance, the STM8L151xx/152xx and STM32L15xx
devices use a common architecture:
 Same power supply range from 1.8 to 3.6 V, down to 1.65 V at power down
 Architecture optimized to reach ultra-low consumption both in low power modes and
Run mode
 Fast startup strategy from low power modes
 Flexible system clock
 Ultra-safe reset: same reset strategy for both STM8L15x and STM32L15xxx including
power-on reset, power-down reset, brownout reset and programmable voltage
detector.
Features
ST ultra-low-power continuum also lies in feature compatibility:
 More than 10 packages with pin count from 20 to 100 pins and size down to 3 x 3 mm
 Memory density ranging from 4 to 128 Kbytes