IL8560

INTEGRAL IL8560 www.DataSheet4U.com CLOCK CIRCUIT FUNCTIONS Real time display Alarm with snooze Sleep timer (max. 59 minutes or 1 hour 59 minutes) PIN CONNECTION FEATURES LED direct drive by time-sharing (duplex) Wide operating voltage range Alarm on a 24-hour basis Time format: 12-hour AM/PM and 24hour On-chip RC-oscillator for battery backup 50Hz or 60Hz is usable as the reference frequency Possible to automatically advance "hours", "minutes" Sleep timer (max. 59 minutes or 1 hour 59 minutes) Repeatedly usable snooze Power failure indicator 900Hz output for alarm tone Bare chip or SOP-28 are available Pin-to-Pin replacement with Sanyo LM8560 OPERATION DESCRIPTION 50Hz/60Hz Input: CR Input: 50/60 select input: Display mode select input (alarm display/sleep display); The on-chip Schmitt trigger circuit allows a simple RC filter at the input to remove possible line voltage transients. An internal pull-up resister is provided. Then AC power-down occurs, the time counter enters the "hold" mode and the on-chip clock oscillator starts operating immediately. If there is no input at "50/60 Hz input" during 3-clock period, this oscillator controls the time counter advance instead of "50/60Hz input". The values of CR determine the frequency of the on-chip clock oscillator. All segment outputs are off during backup oscillator operation. NOTE: If the backup OSC is used at the power-down mode, "50/60Hz input" must be open or at Vss level. Connecti...