HT1612 Просмотр технического описания (PDF) - Holtek Semiconductor

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HT1612

Timer with Dialer Interface

Holtek Semiconductor 

About On-Hook & Off-Hook

HT1612

Note: 1. Figure a displays blanks.

2. Figure b illustrates a timer mode caused by Off-Hook; timer is reset and starts to

count the conversation time.

3. In Figure c. The dialing data are received and displayed on the LCD from left to right

after Off-Hook. When the entry interval is over 10 seconds, it resets the timer and starts

to count.

7

5th July ’95

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