HT1613C -- Timer with Dialer Interface (EOL)

General Description

The HT1613C 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 HT1613C can display the real time or be blank by default. When answering a telephone call, the timer is activated to tell users how long the conversation has taken. The HT1613C receives dialing data from the dialer and displays the phone number on the LCD from left to right each time a phone call is made. By adding a TIMER key, the HT1613C can provide the stopwatch and timer reset/hold functions. Refer to the functional description for details.

Features

  • Operating voltage: 1.2V~1.7V
  • Low operating current: 3ľA (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 (8 digit hand-held calculator LCD used for 8-digit application)
  • Real time clock with stopwatch
  • Built-in dialer interface
  • 12-hour or 24-hour format
  • Uses 32768Hz crystal
  • Two-button sequential operation for real time clock setting
  • Pad options
    - Real time (RT)
    - Auto change to timer mode (ACT)
    - Extension phone number display (EPN)
  • Blinking cursor waits for dialing number
  • Last call time display

Technical Document

Other Information