HT1611C - Holtek Semiconductor Inc

HT1611C Timer with Dialer Interface

The HT1611C is a CMOS chip designed for dialer interfaces driving 8 or 10-digit LCDs. Various functions, such as real time clock, dialing number and conversation time display are provided. 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 hu.

Features

· Operating voltage: 1.2V~1.7V
· Low operating current: 3mA (typ.)
· Dialing number and conversation time display
· Conversation timer (59 mins and 59 secs max.)
· 8 or 10-digit LCD display driver; 3V,1/2 bias, 1/3 duty Patent Number: 84545 (R.O.C.) Patent Pending: 08/214, 079 (U.S.A.)
· Real time clock with stopwatch
· Built-in dialer interface
· 12-hour or 24-hour format
· Two-button sequential operation for real time clock setting (8-digit hand-held calculator LCD used for 8-digit applications)
· Uses 32768Hz crystal Applications
· Timers, clocks, watches
· LCD display drivers
· Teleph.