HT1616C

www.DataSheet4U.com HT1616C Timer with Dialer Interface Patent Number: 84545 (R.O.C.) Patent Pending: 08/214, 079 (U.S.A.) · Stop watch · Built-in dialer interface · 12-hour or 24-hour format · Two-button sequential operation for real Features · Operating voltage: 1.2V~1.7V · Low operating current: 4mA typ. · Dialing number and conversation time display · Conversation timer (59 mins and 59 secs max.) · 12 or 16 digits LCD display driver; 3V, 1/2 bias, 1/3 time clock setting duty · Uses 32768Hz crystal · Real time clock Applications · Timers, clocks and watches · LCD display drivers · Telephone display interface · Instrument display General Description The HT1616C is a CMOS chip designed for dialer interfaces driving 12 or 16-digit LCDs. Various functions, such as real time clock, dialing number and conversation time display are provided. For HT1616C the real time is displayed by default. When answering a telephone call, the timer is activated to tell users how long the conversation has taken. After the telephone is hung up, the total conversation time is shown for about 5 seconds and the real time is displayed again. When making a phone call, the HT1616C receives dialing data from the dialer and displays the phone number from left to right on the LCD. However, if there is no dialing action within 10 seconds, it restarts the timer again. By adding a TIMER key, the IC can provide stopwatch and timer reset/hold functions. Refer to the functional description for details....