IL91214A dialer equivalent, tone/pulse dialer.
HK MODE IN OSCI
01 02
16 15
R4 R3 R2 R1 C3 C2 C1 DP
Pin # A B
Designation HK MODE IN
Description Hook switch input MODE IN = VDD: pulse mode, 10 Hz, М/В = 1/2, MODE IN = VSS: tone mode, MODE IN = floating mode, 20 Hz, М/В = 1/2 Oscillator inpu.
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