SC91215 データシートの表示（PDF） - Silan Microelectronics

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コンポーネント説明

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SC91215

T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION

Silan Microelectronics 

SC91214/91215 SERIES

If the dialing of D1 to Dn is finished, pressing RD will cause the pulse dialing pin to go low for 67 seconds

of break time and an 824 ms pause will automatically be added. If the pulses of the number dialed with D1 to

Dn have not finished, the pressing of the redial key will be ignored.

7. Flash dialing

Off Hook F D1 … Dn or On Hook HFI ↓ F D1 … Dn

The flash key emulate quick On-Off Hook operations. Pressing the flash keys, F1 or F2 , will cause a break

of 96 ms or 640 ms (or, 297 ms or 640 ms, depending on the mode) on the DP output pin. Then, it pauses for

824 ms and continues dialing the digits, D1 to Dn . These digits are then stored in the redial memory.

Each time the flash key is pressed, the redial memory will be cleared to store a new entry. In addition, the

MODE IN status will be checked again for the setting of the TONE/PULSE DIALING mode.

Similarly, to make sure that the IC is working properly, new flash key inputs will be ignored as long as the digits

that were dialed have not finished.

TEST CIRCUIT

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

Http: www.silan.com.cn

REV:1.0 2004.08.03

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