HT9305A Holtek, HT9305A Datasheet
HT9305A
Related parts for HT9305A
HT9305A Summary of contents
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Features Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.) Universal specification Operating voltage: 2.0V~5.5V Low standby current Low memory retention current: 0.1 A (Typ.) Tone/pulse switchable Interface with LCD driver 32 digits for redialing 32 digits for the SA memory dialing One-key ...
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Selection Table HT9305/6 Series 2 21st Jan ’98 ...
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Pin Assignment HT9305x/xL, HT9306x version HT9305xT/xLT versions HT9305/6 Series 3 21st Jan ’98 ...
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Keyboard Information Block Diagram HT9305/6 Series 4 21st Jan ’98 ...
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Pin Description Internal Pin Name I/O Connection These pins form keyboard matrix which can perform keyboard input detection and dialing specification setting functions. When on-hook (HKS=high) all the pins are set high. While off-hook the column group ...
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Internal Pin Name I/O Connection This is a three-state input/output pin, used for dialing mode selection, either Tone mode or Pulse mode, 10pps/20pps MODE=VDD: Pulse mode, 10pps MODE=OPEN: Pulse mode, 20pps CMOS MODE I/O MODE=VSS: Tone mode IN/OUT During pulse ...
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Internal Pin Name I/O Connection NMOS open drain output pin. It outputs the BCD code of the dialing digits to the LCD driver chip (HT16XX series for DOUT O NMOS OUT dialing number display. Refer to the functional ...
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Electrical Characteristics Symbol Parameter V Operating Voltage DD I Operating Current DD I Standby Current STB V Memory Retention Voltage R I Memory Retention Current R V Input Low Voltage IL V Input High Voltage IH I XMUTE Leakage Current ...
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Pulse Mode Electrical Characteristics Symbol Parameter Output Source I 2.5V V POH Current PO Output Sink I 2.5V V POL Current PR Pulse Rate — M/B Make/Break Ratio — T Pre-digit-pause Time — PDP T Inter-digit-pause Time ...
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Tone Mode Electrical Characteristics Symbol Parameter V V DTMF Output DC Level — TDC I DTMF Sink Current 2.5V V TOL V DTMF Output AC Level — TAC R DTMF Output Load 2.5V THD –23dB L A Column Pre-emphasis 2.5V ...
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All the resistors are 330k . The resistor option functions and the default specifications (with- out option resistors) are listed below. Option Option Default Resistor Function (No Resistor) Make/Break R 40:60 K12 Ratio Selection Flash Function Flash= control R K13 ...
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Pulse number table Keypad Output Pulse Number New Sweden/ Normal Digit Key Zealand Denmark N (10–N) (N+ ...
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Hold-line function table DOUT BCD code When dialing, the corresponding 4-bit BCD codes are serially presented on DOUT from MSB to LSB. The data of DOUT is valid at the falling edge of the CLOCK pin. The following table lists ...
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ST Store key. The execution of this key can actu- ate the store memory function with (or with- out) dialing output and it can store lock numbers with personal code in IDD lock op- eration. During the dialing signal transmis- ...
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HT9305/6 Series 15 21st Jan ’98 ...
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HT9305/6 Series 16 21st Jan ’98 ...
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HT9305/6 Series 17 21st Jan ’98 ...
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HT9305/6 Series 18 21st Jan ’98 ...
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Timing Diagrams Normal dialing Pulse mode Tone mode HT9305/6 Series 19 21st Jan ’98 ...
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Dialing with pause key Pulse mode Tone mode HT9305/6 Series 20 21st Jan ’98 ...
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Flash key operation Pulse Tone operation HT9305/6 Series 21 21st Jan ’98 ...
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One key redial operation CLOCK & DOUT operation HT9305/6 Series 22 21st Jan ’98 ...
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Application Circuits Application circuit 1 HT9305/6 Series 23 21st Jan ’98 ...
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Application circuit 2 HT9305/6 Series 24 21st Jan ’98 ...
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Application circuit 3 HT9305/6 Series 25 21st Jan ’98 ...
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Application circuit 4 HT9305/6 Series 26 21st Jan ’98 ...
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Application circuit 5 HT9305/6 Series 27 21st Jan ’98 ...
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Application circuit 6 HT9305/6 Series 28 21st Jan ’98 ...
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Application circuit 7 HT9305/6 Series 29 21st Jan ’98 ...
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Application circuit 8 HT9305/6 Series 30 21st Jan ’98 ...