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NT91315CL Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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NT91315CL Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 22 page NT91315XL Series 7 Pin Descriptions Pin No. Designation I/O Description NT91315AL NT91315BL NT91315CL NT91315DL 1 2 2 2 HK I Hook switch input This inverter input pin detects the state of the hook switch contact. "Off Hook" is represented by a VSS condition. "On Hook" is represented by a VDD condition 2 3 3 3 MODE IN I, Z TRI-STATE mode select pin The two types the NT91315XL are listed as follows (diode options) a. Without diode added MODE IN Tone/ Pulse Dial Rate M/B Ratio VDD Pulse 10pps 2/3 VSS Tone - - Floating Pulse 10pps 1/2 b. With diode added MODE IN Tone/ Pulse Dial Rate M/B Ratio VDD Pulse 10pps 1/2 VSS Tone - - Floating Pulse 20pps 1/2 The mode selection pin checks for tone/pulse dialing as each digit is entered. In the PULSE mode, the dialing rate is checked, along with the make/break ratio, at the entry of the first key |
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