HT1612 Ver la hoja de datos (PDF) - Holtek Semiconductor

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HT1612

Timer with Dialer Interface

Holtek Semiconductor 

TIMER key function

In the conversation timer mode, the TIMER key can reset or hold the timer.

HT1612

Data & Timing

• Data latch timing

• For instrument or µC application

The HT1612 is also capable of displaying the BCD data which are generated from instruments or

µC system. The corresponding data and timing are shown in Data latch timing. Before the data are

transmitted to the HT1612, the HK pin should be pull-low or keeps low always. Then, the HT1612

is ready to receive the data. At the falling edge of the clock the data are shifted to the IC. After the

whole data are sent to the HT1612, the SK pin is set low to avoid switching to the timer mode.

8

5th July ’95

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