AS2590 Datasheet (austriamicrosystems AG) - LC DISPLAY DRIVER WITH 18 DIGITS/ 6 SYMBOLS AND CLOCK/TIMER

AS2590, LC DISPLAY DRIVER WITH 18 DIGITS/ 6 SYMBOLS AND CLOCK/TIMER

The AS2590 is an integrated CMOS device for driving a liquid crystal display intended for use in telephones.

The 2-wire serial interface is compatible to the dialler AS2574B.

The extreme low operating current allows the circuit to be operational also during on-hook which is necessary in order to the

AS2590 Features

* u Very low operating current, typ. 30 µA @ 3V u Low power oscillator using 32.768 kHz Xtal u 2-wire interface compatible to AS2574B u 18 digits by 7 segments u 6 symbols u 24 hour clock showing hours and minutes u Timer automatically showing elapsed time in minutes and seconds after each telephone c