Data brief

For further information contact your local STMicroelectronics sales office.

September 2009

Doc ID 16223 Rev 1

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STEVAL-IAS003V1

Counter with STM8L101xx

low-power microcontroller and LCD

Features

– only 2 capacitors on top of mandatory parts

(battery, LCD, MCU, buttons)

Description

The STEVAL-IAS003V1 counter demonstration

board is intended as an example for applications

where a directly-driven LCD with the associated

programmable functionality is needed. Targeted

areas include the medical and healthcare field,

battery-operated counters, meters and many

others.

The application is focused on low power

consumption, so the STM8L101xx MCU is used,

and software is written to optimally use the low-

power modes available. This results in an average

current consumption for the entire application of

below 1.5 µA, including direct LCD drive,

implemented by software.

Very low consumption is achieved by keeping the

microcontroller in the active-halt low-power mode

for most of the time. From this mode, the

STM8L101xx is awakened regularly by the auto

wake-up timer.

STEVAL-IAS003V1

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