HT1613C datasheet(1/13 Pages) HOLTEK

Part #	HT1613C

Description	Timer with Dialer Interface

PDF	13 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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1 / 13 page

HT1613C

Timer with Dialer Interface

Block Diagram

Rev. 1.10

1

August 17, 2001

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 (8

digit hand-held calculator LCD used for 8-digit applica-

tion)

· 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

General Description

The HT1613C is a CMOS chip designed for dialer inter-

faces 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 di-

aler 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.

Applications

· Timers, clocks and watches

· LCD display drivers

· Telephone display interface

· Instrument display

Patent Number: 84545 (R.O.C.)

Patent Pending: 08/214, 079 (U.S.A.)

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