SC91215-A SILAN [Silan Microelectronics Joint-stock], SC91215-A Datasheet - Page 10

• Manufacturer Part Number: SC91215-A
• Description: T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

of break time and an 824 ms pause will automatically be added. If the pulses of the number dialed with D1 to
7. Flash dialing
of 96 ms or 640 ms (or, 297 ms or 640 ms, depending on the mode) on the
824 ms and continues dialing the digits, D1 to Dn . These digits are then stored in the redial memory.
MODE IN status will be checked again for the setting of the TONE/PULSE DIALING mode.
that were dialed have not finished.
TEST CIRCUIT
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Dn have not finished, the pressing of the redial key will be ignored.
If the dialing of D1 to Dn is finished, pressing RD will cause the pulse dialing pin to go low for 67 seconds
The flash key emulate quick On-Off Hook operations. Pressing the flash keys, F1 or F2 , will cause a break
Each time the flash key is pressed, the redial memory will be cleared to store a new entry. In addition, the
Similarly, to make sure that the IC is working properly, new flash key inputs will be ignored as long as the digits
Off Hook F D1
Dn or On Hook
HFI
F D1
Dn
SC91214/91215 SERIES
DP
output pin. Then, it pauses for
REV:1.0
Page 10 of 16
2004.08.03