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HT93214 Series 1-memory Tone/Pulse Dialer
Features
· Operating Voltage: 2.0V~5.5V · Low standby current · Low memory retention current: 0.1mA (Typ.) · Tone/Pulse switchable · 32 (pulse)/31 (tone) digits for redialing · Pause and P ® T key for PBX · 4´4 keyboard matrix · 3.58MHz crystal or ceramic resonator · Hand-free control
Patent Number: 86474, 84545(R.O.C)
· Pause, P ® T can be saved for redialing · One-key redialing · Keytone output · Pause time: 2.2s · Cascadable manual dialing after redialing · Calibrated DTMF timing for redialing · HT93214A: 16-pin DIP package
HT93214B/AT: 18-pin DIP package
General Description
The HT93214 are dialer series designed for low cost telephone set applications with expandable features such as Lock function, keytone and LCD display interface.