Part number: IL91210E
Manufacturer: IK Semiconductor
File Size: 403.53KB
Download: 📄 Datasheet
Description: Tone/Pulse Dialer
of any voltage higher than maximum rated voltages to this.
Pin No. 1 2 3 4 5 Designation R1 R2 R3 R4 HK Hook switch input. This inverter input pin detects the state of the hook switch contact. “Off Hook” is represented by a GND condition. “On Hook” is represented by a VCC condition. Make/Break Ratio Select I.
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