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HT93214 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT93214 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
1 / 16 page HT93214 Series 1-memory Tone/Pulse Dialer Selection Table HT93214 series Function Part No. Hand- Free Key Tone Flash Flash Time (ms) Pulse No. Tone Duration (ms) Inter Tone Pause (ms) PPS M/B PKG DIP 300mil HT93214A Control 300/600 N 94 96 10/20 1/2 16 HT93214B Ö Control 300/600 N 94 96 10/20 1/2 18 HT93214AT Ö Control 300/600 N 94 96 10/20 1/2 18 Rev. 1.10 1 October 2, 2002 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 · 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 inter- face. With a 4 ´4 keyboard, it performs normal tone/pulse switchable dialing, and provides one-key redialing function with a 32-digit memory for speed dial- ing. An on-chip oscillator is built-in to work with an exter- nal 3.58Mhz crystal or ceramic resonator for accurate timing. The HT93214 provides 300ms (F1 key) and 600ms (F2 key) of flash time; Tone dialing and 10pps, 20pps selection with 1/2 M/B ratio for pulse dialing. Patent Number: 86474, 84545(R.O.C) |
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