HT1612 datasheet(1/14 Pages) HOLTEK

tên linh kiện	HT1612

Giải thích chi tiết về linh kiện	Timer with Dialer Interface

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HT1612

Timer with Dialer Interface

Features

•

Operating voltage: 1.2V~1.7V

•

Dialing number and conversation time display

•

Conversation timer (Max. to 59 mins and 59

secs)

•

Operation current: 10

µA (Typ.)

•

32768Hz crystal

•

8 or 10 digits LCD display driver, 3V, 1/2

bias, 1/3 duty (8 digits hand-held calculator

LCD is used for 8 digits application)

•

Built-in dialer interface

General Description

The HT1612 is a CMOS chip designed for dialer

interface which drives 8 or 10 digits LCD. Vari-

ous functions, such as displaying dialing num-

ber and conversation time, are provided.

It normally shows blanks. The timer is started

to tell users how long the conversation time has

been taken when answering a telephone call.

After hanging up the telephone, it returns to

show blanks immediately. Whenever makeing a

phone call, the HT1612 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 re-

starts the timer again. By adding a TIMER key,

the HT1612 can provide the timer reset/hold

functions (refer to functional description for

more details).

Applications

•

Timers

•

LCD display drivers

•

Telephone display interface

•

Instrument display

1

5th July ’95

Số phần tương tự - HT1612

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Samsung semiconductor	KA2425A	91Kb / 6P	SPEECH NETWORK WITH DIALER INTERFACE
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Holtek Semiconductor In...	HT1611C	194Kb / 13P	Timer with Dialer Interface August 17, 2001
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