KS58555B dialer equivalent, universal 15 memory dialer.
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* Flash Time selectable on the keyboard (100, 303, 604 mS) Hands-Free and Hold functions Tone/Pulse .
Pin No 1 2 3 4 Symbol R5 R1 R2 R3 R4 HS M/B MDS/DRS OSCI OSCO C5 HDO VDD VSS TONE X’ MUTE DP C1 C2 C3 C4 HFO O Hands-Free Control Output I Column Key Input I I I I O I O S S O O O Hook Switch Make/Break Select Mode & Dial Pulse Ratio Select Pin Oscil.
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