The NT91214/15 is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58MHz crystal or ceramic resonator. It provides a dialing pulse (DP) or dual tone multi-frequency (DTMF) dialing. A standard 4 x 4 matrix keyboard can be used to support either DP or DTMF modes. Up to 32 digits can be saved in the on-chip RAM for rediali.
T One touch redial operation T Tone/Pulse switchable T 32 digit capacity for redialing T Automatic mixed redialing (last number redial) of pulse T PABX auto-pause is 2.2 seconds T DTMF Timing: T to DTMF with multiple automatic access pauses Manual dialing: minimum duration for bursts and pauses Redialing: calibrated timing Hands-Free control function T Wide operating voltage range: 2V to 5.5V T Key-in beep tone output T Digits dialed manually after redialing are T T T T cascadable and stored as additional digits for the next redialing Uses inexpensive ceramic resonator (3.58 MHz) Two versio.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | NT91214 |
Novatek |
(NT91214 / NT91215) Tone / Pulse Dialer | |
2 | NT91315XL |
Novatek |
Microcontroller for Monitor | |
3 | NT90 |
Ningbo |
Relay | |
4 | NT90H1A |
DB Lectro |
Suitable | |
5 | NT90H1B |
DB Lectro |
Suitable | |
6 | NT90RHASxxxx |
ETC |
NT90RHASxxxx | |
7 | NT93401-04 |
NOVATEK |
High Feature Phone LSI | |
8 | NT93403-05 |
NOVATEK |
Multi-Feature Phone LSI | |
9 | NT93403-05x |
NOVATEK |
Multi-Feature Phone LSI | |
10 | NT96630BG |
Novatek |
Hybrid DSC/DV Processor | |
11 | NT96632BG |
Novatek |
Hybrid DSC/DV Processor | |
12 | NT96650-ES |
Novatek |
Hybrid DSC/DV Processor |