CF1156 Datasheet | Nippon Precision Circuits

.. CF1156 series Melody LSIs OVERVIEW The CF1156 series are CMOS melody LSIs with built-in LED driver that, together with a battery and piezoelectric buzzer, operate in one of 3 melody modes determined by input level or bonding options. They also feature an oscillator stop function in non-play mode and a variable pull-down resistance function that responds to input levels in order to reduce power consumption, reduce cost, and extend battery life, making them ideal in a wide range of applications including greeting cards and toys. Features I I I I I I LED direct drive Requires few external ponents 2.0 to 3.6V wide operating voltage range Low power consumption 3...