STM32L151VB-A datasheet(12/130 Pages) STMICROELECTRONICS

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STM32L151x6/8/B-A STM32L152x6/8/B-A

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DocID024330 Rev 5

2.2

Ultra-low-power device continuum

The ultra-low-power family offers a large choice of cores and features. From a proprietary 8-

bit core up to the Cortex-M3, including the Cortex-M0+, the STM8Lx and STM32Lx series

offer the best range of choices to meet your requirements in terms of ultra-low-power

features. The STM32 Ultra-low-power series is an ideal fit for applications like gas/water

meters, keyboard/mouse, or wearable devices for fitness and healthcare. Numerous built-in

features like LCD drivers, dual-bank memory, low-power Run mode, op-amp, AES-128bit,

DAC, crystal-less USB and many others, allow to build highly cost-optimized applications by

reducing the BOM.

Note:

STMicroelectronics as a reliable and long-term manufacturer ensures as much as possible

the pin-to-pin compatibility between any STM8Lx and STM32Lx devices and between any of

the STM32Lx and STM32Fx series. Thanks to this unprecedented scalability, your existing

applications can be upgraded to respond to the latest market features and efficiency

demand.

2.2.1

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.

2.2.2

Shared peripherals

STM8L15xxx and STM32L1xxxx share identical peripherals which ensure a very easy

migration from one family to another:

•

Analog peripherals: ADC, DAC and comparators

•

Digital peripherals: RTC and some communication interfaces

2.2.3

Common system strategy

To offer flexibility and optimize performance, the STM8L15xxx and STM32L1xxxx families

use a common architecture:

•

Common power supply range from 1.65 V to 3.6 V, (1.65 V at power down only for

STM8L15xxx devices)

•

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 including power-on reset, power-down reset,

brownout reset and programmable voltage detector.

2.2.4

Features

ST ultra-low-power continuum also lies in feature compatibility:

•

More than 10 packages with pin count from 20 to 144 pins and size down to 3 x 3 mm

•

Memory density ranging from 4 to 512 Kbytes

STM32L151VB-A 数据表(PDF) 12 Page - STMicroelectronics

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